Merge remote-tracking branch 'origin/master' into lash/improve-cache

.gitlab-ci.yml

@@ -30,6 +30,8 @@ version:
   #image: python:3.7-stretch
   image: registry.gitlab.com/grassrootseconomics/cic-base-images/ci-version:b01318ae 
   stage: version
+  tags:
+    - integration
   script:
     - mkdir -p ~/.ssh && chmod 700 ~/.ssh
     - ssh-keyscan gitlab.com >> ~/.ssh/known_hosts && chmod 644 ~/.ssh/known_hosts

.gitlab/issue_templates/bug.md

@@ -0,0 +1,44 @@
+<!---
+Please read this!
+
+Before opening a new issue, make sure to search for keywords in the issues
+filtered by the "bug" label:
+
+- https://gitlab.com/groups/grassrootseconomics/-/issues?scope=all&state=all&label_name[]=bug
+
+and verify the issue you're about to submit isn't a duplicate.
+--->
+
+### Summary
+
+<!-- Summarize the bug encountered concisely. -->
+
+### Steps to reproduce
+
+<!-- Describe how one can reproduce the issue - this is very important. Please use an ordered list. -->
+
+### Example Project
+
+<!-- If possible, please create an example project here on GitLab.com that exhibits the problematic 
+behavior, and link to it here in the bug report. If you are using an older version of GitLab, this 
+will also determine whether the bug is fixed in a more recent version. -->
+
+### What is the current *bug* behavior?
+
+<!-- Describe what actually happens. -->
+
+### What is the expected *correct* behavior?
+
+<!-- Describe what you should see instead. -->
+
+### Relevant logs and/or screenshots
+
+<!-- Paste any relevant logs - please use code blocks (```) to format console output, logs, and code
+ as it's tough to read otherwise. -->
+
+
+### Possible fixes
+
+<!-- If you can, link to the line of code that might be responsible for the problem. -->
+
+/label ~"bug"

CODE_OF_CONDUCT.md

@@ -0,0 +1,83 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to make participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies within all project spaces, and it also applies when
+an individual is representing the project or its community in public spaces.
+Examples of representing a project or community include using an official
+project e-mail address, posting via an official social media account, or acting
+as an appointed representative at an online or offline event. Representation of
+a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at [INSERT EMAIL ADDRESS]. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq
+
+
+
+
+...Try to keep in mind the immortal
+words of Bill and Ted, "Be excellent to each other."
+

CONTRIBUTING.md

@@ -0,0 +1,16 @@
+Hello and welcome to the CIC Stack repository. Targeted for use with the ethereum virtual machine and a ussd capable telecom provider. 
+
+__To request a change to the code please fork this repository and sumbit a merge request.__
+
+__If there is a Grassroots Economics Kanban Issue please include that in our MR it will help us track contributions. Karibu sana!__
+
+__Visit the Development Kanban board here: https://gitlab.com/grassrootseconomics/cic-internal-integration/-/boards/2419764__
+
+__Ask a question in our dev chat:__
+
+[Mattermost](https://chat.grassrootseconomics.net/cic/channels/dev)
+
+[Discord](https://discord.gg/XWunwAsX)
+
+[Matrix, IRC soon?]
+

LICENSE

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
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+ Everyone is permitted to copy and distribute verbatim copies
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+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
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+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Remote Network Interaction; Use with the GNU General Public License.
+
+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
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+permission to link or combine any covered work with a work licensed
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+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
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+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
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+  16. Limitation of Liability.
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+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    cic-internal-integration
+    Copyright (C) 2021  Grassroots Economics
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

apps/cic-ussd/cic_ussd/account/balance.py

@@ -2,7 +2,7 @@
 
 import json
 import logging
-from typing import Optional
+from typing import Union, Optional
 
 # third-party imports
 from cic_eth.api import Api
@@ -14,7 +14,7 @@ from cic_ussd.account.transaction import from_wei
 from cic_ussd.cache import cache_data_key, get_cached_data
 from cic_ussd.error import CachedDataNotFoundError
 
-logg = logging.getLogger()
+logg = logging.getLogger(__file__)
 
 
 def get_balances(address: str,
@@ -43,7 +43,7 @@ def get_balances(address: str,
     :return: A list containing balance data if called synchronously. | None
     :rtype: list | None
     """
-    logg.debug(f'retrieving balance for address: {address}')
+    logg.debug(f'retrieving {token_symbol} balance for address: {address}')
     if asynchronous:
         cic_eth_api = Api(
             chain_str=chain_str,
@@ -60,11 +60,13 @@ def get_balances(address: str,
         return balance_request_task.get()
 
 
-def calculate_available_balance(balances: dict) -> float:
+def calculate_available_balance(balances: dict, decimals: int) -> float:
     """This function calculates an account's balance at a specific point in time by computing the difference from the
     outgoing balance and the sum of the incoming and network balances.
     :param balances: incoming, network and outgoing balances.
     :type balances: dict
+    :param decimals:
+    :type decimals: int
     :return: Token value of the available balance.
     :rtype: float
     """
@@ -73,7 +75,7 @@ def calculate_available_balance(balances: dict) -> float:
     network_balance = balances.get('balance_network')
 
     available_balance = (network_balance + incoming_balance) - outgoing_balance
-    return from_wei(value=available_balance)
+    return from_wei(decimals=decimals, value=available_balance)
 
 
 def get_adjusted_balance(balance: int, chain_str: str, timestamp: int, token_symbol: str):
@@ -94,24 +96,25 @@ def get_adjusted_balance(balance: int, chain_str: str, timestamp: int, token_sym
     return demurrage_api.get_adjusted_balance(token_symbol, balance, timestamp).result
 
 
-def get_cached_available_balance(blockchain_address: str) -> float:
+def get_cached_available_balance(decimals: int, identifier: Union[list, bytes]) -> float:
     """This function attempts to retrieve balance data from the redis cache.
-    :param blockchain_address: Ethereum address of an account.
+    :param decimals:
-    :type blockchain_address: str
+    :type decimals: int
+    :param identifier: An identifier needed to create a unique pointer to a balances resource.
+    :type identifier: bytes | list
     :raises CachedDataNotFoundError: No cached balance data could be found.
     :return: Operational balance of an account.
     :rtype: float
     """
-    identifier = bytes.fromhex(blockchain_address)
+    key = cache_data_key(identifier=identifier, salt=MetadataPointer.BALANCES)
-    key = cache_data_key(identifier, salt=MetadataPointer.BALANCES)
     cached_balances = get_cached_data(key=key)
     if cached_balances:
-        return calculate_available_balance(json.loads(cached_balances))
+        return calculate_available_balance(balances=json.loads(cached_balances), decimals=decimals)
     else:
-        raise CachedDataNotFoundError(f'No cached available balance for address: {blockchain_address}')
+        raise CachedDataNotFoundError(f'No cached available balance at {key}')
 
 
-def get_cached_adjusted_balance(identifier: bytes):
+def get_cached_adjusted_balance(identifier: Union[list, bytes]):
     """
     :param identifier:
     :type identifier:
@@ -120,3 +123,22 @@ def get_cached_adjusted_balance(identifier: bytes):
     """
     key = cache_data_key(identifier, MetadataPointer.BALANCES_ADJUSTED)
     return get_cached_data(key)
+
+
+def get_account_tokens_balance(blockchain_address: str, chain_str: str, token_symbols_list: list):
+    """
+    :param blockchain_address:
+    :type blockchain_address:
+    :param chain_str:
+    :type chain_str:
+    :param token_symbols_list:
+    :type token_symbols_list:
+    :return:
+    :rtype:
+    """
+    for token_symbol in token_symbols_list:
+        get_balances(address=blockchain_address,
+                     chain_str=chain_str,
+                     token_symbol=token_symbol,
+                     asynchronous=True,
+                     callback_param=f'{blockchain_address},{token_symbol}')

apps/cic-ussd/cic_ussd/account/statement.py

@@ -69,7 +69,8 @@ def parse_statement_transactions(statement: list):
     parsed_transactions = []
     for transaction in statement:
         action_tag = transaction.get('action_tag')
-        amount = from_wei(transaction.get('token_value'))
+        decimals = transaction.get('token_decimals')
+        amount = from_wei(decimals, transaction.get('token_value'))
         direction_tag = transaction.get('direction_tag')
         token_symbol = transaction.get('token_symbol')
         metadata_id = transaction.get('metadata_id')

apps/cic-ussd/cic_ussd/account/tokens.py

@@ -1,19 +1,115 @@
 # standard imports
+import hashlib
 import json
 import logging
-from typing import Dict, Optional
+from typing import Optional, Union
 
 # external imports
 from cic_eth.api import Api
 from cic_types.condiments import MetadataPointer
 
 # local imports
+from cic_ussd.account.balance import get_cached_available_balance
 from cic_ussd.account.chain import Chain
-from cic_ussd.cache import cache_data_key, get_cached_data
+from cic_ussd.cache import cache_data, cache_data_key, get_cached_data
-from cic_ussd.error import SeppukuError
+from cic_ussd.error import CachedDataNotFoundError, SeppukuError
+from cic_ussd.metadata.tokens import query_token_info, query_token_metadata
+from cic_ussd.processor.util import wait_for_cache
+from cic_ussd.translation import translation_for
+
+logg = logging.getLogger(__file__)
 
 
-logg = logging.getLogger(__name__)
+def collate_token_metadata(token_info: dict, token_metadata: dict) -> dict:
+    """
+    :param token_info:
+    :type token_info:
+    :param token_metadata:
+    :type token_metadata:
+    :return:
+    :rtype:
+    """
+    logg.debug(f'Collating token info: {token_info} and token metadata: {token_metadata}')
+    description = token_info.get('description')
+    issuer = token_info.get('issuer')
+    location = token_metadata.get('location')
+    contact = token_metadata.get('contact')
+    return {
+        'description': description,
+        'issuer': issuer,
+        'location': location,
+        'contact': contact
+    }
+
+
+def create_account_tokens_list(blockchain_address: str):
+    """
+    :param blockchain_address:
+    :type blockchain_address:
+    :return:
+    :rtype:
+    """
+    token_symbols_list = get_cached_token_symbol_list(blockchain_address=blockchain_address)
+    token_list_entries = []
+    if token_symbols_list:
+        logg.debug(f'Token symbols: {token_symbols_list} for account: {blockchain_address}')
+        for token_symbol in token_symbols_list:
+            entry = {}
+            logg.debug(f'Processing token data for: {token_symbol}')
+            key = cache_data_key([bytes.fromhex(blockchain_address), token_symbol.encode('utf-8')], MetadataPointer.TOKEN_DATA)
+            token_data = get_cached_data(key)
+            token_data = json.loads(token_data)
+            logg.debug(f'Retrieved token data: {token_data} for: {token_symbol}')
+            token_name = token_data.get('name')
+            entry['name'] = token_name
+            token_symbol = token_data.get('symbol')
+            entry['symbol'] = token_symbol
+            token_issuer = token_data.get('issuer')
+            entry['issuer'] = token_issuer
+            token_contact = token_data['contact'].get('phone')
+            entry['contact'] = token_contact
+            token_location = token_data.get('location')
+            entry['location'] = token_location
+            decimals = token_data.get('decimals')
+            identifier = [bytes.fromhex(blockchain_address), token_symbol.encode('utf-8')]
+            wait_for_cache(identifier, f'Cached available balance for token: {token_symbol}', MetadataPointer.BALANCES)
+            token_balance = get_cached_available_balance(decimals=decimals, identifier=identifier)
+            entry['balance'] = token_balance
+            token_list_entries.append(entry)
+    account_tokens_list = order_account_tokens_list(token_list_entries, bytes.fromhex(blockchain_address))
+    key = cache_data_key(bytes.fromhex(blockchain_address), MetadataPointer.TOKEN_DATA_LIST)
+    cache_data(key, json.dumps(account_tokens_list))
+
+
+def get_active_token_symbol(blockchain_address: str):
+    """
+    :param blockchain_address:
+    :type blockchain_address:
+    :return:
+    :rtype:
+    """
+    identifier = bytes.fromhex(blockchain_address)
+    key = cache_data_key(identifier=identifier, salt=MetadataPointer.TOKEN_ACTIVE)
+    active_token_symbol = get_cached_data(key)
+    if not active_token_symbol:
+        raise CachedDataNotFoundError('No active token set.')
+    return active_token_symbol
+
+
+def get_cached_token_data(blockchain_address: str, token_symbol: str):
+    """
+    :param blockchain_address:
+    :type blockchain_address:
+    :param token_symbol:
+    :type token_symbol:
+    :return:
+    :rtype:
+    """
+    identifier = [bytes.fromhex(blockchain_address), token_symbol.encode('utf-8')]
+    key = cache_data_key(identifier, MetadataPointer.TOKEN_DATA)
+    logg.debug(f'Retrieving token data for: {token_symbol} at: {key}')
+    token_data = get_cached_data(key)
+    return json.loads(token_data)
 
 
 def get_cached_default_token(chain_str: str) -> Optional[str]:
@@ -49,6 +145,132 @@ def get_default_token_symbol():
             raise SeppukuError(f'Could not retrieve default token for: {chain_str}')
 
 
+def get_cached_token_symbol_list(blockchain_address: str) -> Optional[list]:
+    """
+    :param blockchain_address:
+    :type blockchain_address:
+    :return:
+    :rtype:
+    """
+    key = cache_data_key(identifier=bytes.fromhex(blockchain_address), salt=MetadataPointer.TOKEN_SYMBOLS_LIST)
+    token_symbols_list = get_cached_data(key)
+    if token_symbols_list:
+        return json.loads(token_symbols_list)
+    return token_symbols_list
+
+
+def get_cached_token_data_list(blockchain_address: str) -> Optional[list]:
+    """
+    :param blockchain_address:
+    :type blockchain_address:
+    :return:
+    :rtype:
+    """
+    key = cache_data_key(bytes.fromhex(blockchain_address), MetadataPointer.TOKEN_DATA_LIST)
+    token_data_list = get_cached_data(key)
+    if token_data_list:
+        return json.loads(token_data_list)
+    return token_data_list
+
+
+def handle_token_symbol_list(blockchain_address: str, token_symbol: str):
+    """
+    :param blockchain_address:
+    :type blockchain_address:
+    :param token_symbol:
+    :type token_symbol:
+    :return:
+    :rtype:
+    """
+    token_symbol_list = get_cached_token_symbol_list(blockchain_address)
+    if token_symbol_list:
+        if token_symbol not in token_symbol_list:
+            token_symbol_list.append(token_symbol)
+    else:
+        token_symbol_list = [token_symbol]
+
+    identifier = bytes.fromhex(blockchain_address)
+    key = cache_data_key(identifier=identifier, salt=MetadataPointer.TOKEN_SYMBOLS_LIST)
+    data = json.dumps(token_symbol_list)
+    cache_data(key, data)
+
+
+def hashed_token_proof(token_proof: Union[dict, str]) -> str:
+    """
+    :param token_proof:
+    :type token_proof:
+    :return:
+    :rtype:
+    """
+    if isinstance(token_proof, dict):
+        token_proof = json.dumps(token_proof)
+    logg.debug(f'Hashing token proof: {token_proof}')
+    hash_object = hashlib.new("sha256")
+    hash_object.update(token_proof.encode('utf-8'))
+    return hash_object.digest().hex()
+
+
+def order_account_tokens_list(account_tokens_list: list, identifier: bytes) -> list:
+    """
+    :param account_tokens_list:
+    :type account_tokens_list:
+    :param identifier:
+    :type identifier:
+    :return:
+    :rtype:
+    """
+    ordered_tokens_list = []
+    # get last sent token
+    key = cache_data_key(identifier=identifier, salt=MetadataPointer.TOKEN_LAST_SENT)
+    last_sent_token_symbol = get_cached_data(key)
+
+    # get last received token
+    key = cache_data_key(identifier=identifier, salt=MetadataPointer.TOKEN_LAST_RECEIVED)
+    last_received_token_symbol = get_cached_data(key)
+
+    last_sent_token_data, remaining_accounts_token_list = remove_from_account_tokens_list(account_tokens_list, last_sent_token_symbol)
+    if last_sent_token_data:
+        ordered_tokens_list.append(last_sent_token_data[0])
+
+    last_received_token_data, remaining_accounts_token_list = remove_from_account_tokens_list(remaining_accounts_token_list, last_received_token_symbol)
+    if last_received_token_data:
+        ordered_tokens_list.append(last_received_token_data[0])
+
+    # order the by balance
+    ordered_by_balance = sorted(remaining_accounts_token_list, key=lambda d: d['balance'], reverse=True)
+    return ordered_tokens_list + ordered_by_balance
+
+
+def parse_token_list(account_token_list: list):
+    parsed_token_list = []
+    for i in range(len(account_token_list)):
+        token_symbol = account_token_list[i].get('symbol')
+        token_balance = account_token_list[i].get('balance')
+        token_data_repr = f'{i+1}. {token_symbol} {token_balance}'
+        parsed_token_list.append(token_data_repr)
+    return parsed_token_list
+
+
+def process_token_data(blockchain_address: str, token_symbol: str):
+    """
+
+    :param blockchain_address:
+    :type blockchain_address:
+    :param token_symbol:
+    :type token_symbol:
+    :return:
+    :rtype:
+    """
+    logg.debug(f'Processing token data for token: {token_symbol}')
+    identifier = token_symbol.encode('utf-8')
+    query_token_metadata(identifier=identifier)
+    token_info = query_token_info(identifier=identifier)
+    hashed_token_info = hashed_token_proof(token_proof=token_info)
+    query_token_data(blockchain_address=blockchain_address,
+                     hashed_proofs=[hashed_token_info],
+                     token_symbols=[token_symbol])
+
+
 def query_default_token(chain_str: str):
     """This function synchronously queries cic-eth for the deployed system's default token.
     :param chain_str: Chain name and network id.
@@ -60,3 +282,60 @@ def query_default_token(chain_str: str):
     cic_eth_api = Api(chain_str=chain_str)
     default_token_request_task = cic_eth_api.default_token()
     return default_token_request_task.get()
+
+
+def query_token_data(blockchain_address: str, hashed_proofs: list, token_symbols: list):
+    """"""
+    logg.debug(f'Retrieving token metadata for tokens: {", ".join(token_symbols)}')
+    api = Api(callback_param=blockchain_address,
+              callback_queue='cic-ussd',
+              chain_str=Chain.spec.__str__(),
+              callback_task='cic_ussd.tasks.callback_handler.token_data_callback')
+    api.tokens(token_symbols=token_symbols, proof=hashed_proofs)
+
+
+def remove_from_account_tokens_list(account_tokens_list: list, token_symbol: str):
+    """
+    :param account_tokens_list:
+    :type account_tokens_list:
+    :param token_symbol:
+    :type token_symbol:
+    :return:
+    :rtype:
+    """
+    removed_token_data = []
+    for i in range(len(account_tokens_list)):
+        if account_tokens_list[i]['symbol'] == token_symbol:
+            removed_token_data.append(account_tokens_list[i])
+            del account_tokens_list[i]
+            break
+    return removed_token_data, account_tokens_list
+
+
+def set_active_token(blockchain_address: str, token_symbol: str):
+    """
+    :param blockchain_address:
+    :type blockchain_address:
+    :param token_symbol:
+    :type token_symbol:
+    :return:
+    :rtype:
+    """
+    logg.info(f'Active token set to: {token_symbol}')
+    key = cache_data_key(identifier=bytes.fromhex(blockchain_address), salt=MetadataPointer.TOKEN_ACTIVE)
+    cache_data(key=key, data=token_symbol)
+
+
+def token_list_set(preferred_language: str, token_data_reprs: list):
+    """
+    :param preferred_language:
+    :type preferred_language:
+    :param token_data_reprs:
+    :type token_data_reprs:
+    :return:
+    :rtype:
+    """
+    if not token_data_reprs:
+        return translation_for('helpers.no_tokens_list', preferred_language)
+    return ''.join(f'{token_data_repr}\n' for token_data_repr in token_data_reprs)
+

apps/cic-ussd/cic_ussd/account/transaction.py

@@ -1,7 +1,6 @@
 # standard import
-import decimal
-import json
 import logging
+from math import trunc
 from typing import Dict, Tuple
 
 # external import
@@ -9,8 +8,6 @@ from cic_eth.api import Api
 from sqlalchemy.orm.session import Session
 
 # local import
-from cic_ussd.account.chain import Chain
-from cic_ussd.account.tokens import get_cached_default_token
 from cic_ussd.db.models.account import Account
 from cic_ussd.db.models.base import SessionBase
 from cic_ussd.error import UnknownUssdRecipient
@@ -55,32 +52,32 @@ def aux_transaction_data(preferred_language: str, transaction: dict) -> dict:
     return transaction
 
 
-def from_wei(value: int) -> float:
+def from_wei(decimals: int, value: int) -> float:
     """This function converts values in Wei to a token in the cic network.
+    :param decimals: The decimals required for wei values.
+    :type decimals: int
     :param value: Value in Wei
     :type value: int
     :return: SRF equivalent of value in Wei
     :rtype: float
     """
-    cached_token_data = json.loads(get_cached_default_token(Chain.spec.__str__()))
+    value = float(value) / (10**decimals)
-    token_decimals: int = cached_token_data.get('decimals')
-    value = float(value) / (10**token_decimals)
     return truncate(value=value, decimals=2)
 
 
-def to_wei(value: int) -> int:
+def to_wei(decimals: int, value: int) -> int:
     """This functions converts values from a token in the cic network to Wei.
+    :param decimals: The decimals required for wei values.
+    :type decimals: int
     :param value: Value in SRF
     :type value: int
     :return: Wei equivalent of value in SRF
     :rtype: int
     """
-    cached_token_data = json.loads(get_cached_default_token(Chain.spec.__str__()))
+    return int(value * (10**decimals))
-    token_decimals: int = cached_token_data.get('decimals')
-    return int(value * (10**token_decimals))
 
 
-def truncate(value: float, decimals: int):
+def truncate(value: float, decimals: int) -> float:
     """This function truncates a value to a specified number of decimals places.
     :param value: The value to be truncated.
     :type value: float
@@ -89,9 +86,8 @@ def truncate(value: float, decimals: int):
     :return: The truncated value.
     :rtype: int
     """
-    decimal.getcontext().rounding = decimal.ROUND_DOWN
+    stepper = 10.0**decimals
-    contextualized_value = decimal.Decimal(value)
+    return trunc(stepper*value) / stepper
-    return round(contextualized_value, decimals)
 
 
 def transaction_actors(transaction: dict) -> Tuple[Dict, Dict]:
@@ -104,14 +100,17 @@ def transaction_actors(transaction: dict) -> Tuple[Dict, Dict]:
     """
     destination_token_symbol = transaction.get('destination_token_symbol')
     destination_token_value = transaction.get('destination_token_value') or transaction.get('to_value')
+    destination_token_decimals = transaction.get('destination_token_decimals')
     recipient_blockchain_address = transaction.get('recipient')
     sender_blockchain_address = transaction.get('sender')
     source_token_symbol = transaction.get('source_token_symbol')
     source_token_value = transaction.get('source_token_value') or transaction.get('from_value')
+    source_token_decimals = transaction.get('source_token_decimals')
 
     recipient_transaction_data = {
         "token_symbol": destination_token_symbol,
         "token_value": destination_token_value,
+        "token_decimals": destination_token_decimals,
         "blockchain_address": recipient_blockchain_address,
         "role": "recipient",
     }
@@ -119,6 +118,7 @@ def transaction_actors(transaction: dict) -> Tuple[Dict, Dict]:
         "blockchain_address": sender_blockchain_address,
         "token_symbol": source_token_symbol,
         "token_value": source_token_value,
+        "token_decimals": source_token_decimals,
         "role": "sender",
     }
     return recipient_transaction_data, sender_transaction_data
@@ -166,14 +166,16 @@ class OutgoingTransaction:
         self.from_address = from_address
         self.to_address = to_address
 
-    def transfer(self, amount: int, token_symbol: str):
+    def transfer(self, amount: int, decimals: int, token_symbol: str):
         """This function initiates standard transfers between one account to another
         :param amount: The amount of tokens to be sent
         :type amount: int
+        :param decimals: The decimals for the token being transferred.
+        :type decimals: int
         :param token_symbol: ERC20 token symbol of token to send
         :type token_symbol: str
         """
         self.cic_eth_api.transfer(from_address=self.from_address,
                                   to_address=self.to_address,
-                                  value=to_wei(value=amount),
+                                  value=to_wei(decimals=decimals, value=amount),
                                   token_symbol=token_symbol)

apps/cic-ussd/cic_ussd/cache.py

@@ -1,12 +1,13 @@
 # standard imports
 import hashlib
 import logging
+from typing import Union
 
 # external imports
 from cic_types.condiments import MetadataPointer
 from redis import Redis
 
-logg = logging.getLogger()
+logg = logging.getLogger(__file__)
 
 
 class Cache:
@@ -39,7 +40,7 @@ def get_cached_data(key: str):
     return cache.get(name=key)
 
 
-def cache_data_key(identifier: bytes, salt: MetadataPointer):
+def cache_data_key(identifier: Union[list, bytes], salt: MetadataPointer):
     """
     :param identifier:
     :type identifier:
@@ -49,6 +50,10 @@ def cache_data_key(identifier: bytes, salt: MetadataPointer):
     :rtype:
     """
     hash_object = hashlib.new("sha256")
-    hash_object.update(identifier)
+    if isinstance(identifier, list):
+        for identity in identifier:
+            hash_object.update(identity)
+    else:
+        hash_object.update(identifier)
     hash_object.update(salt.value.encode(encoding="utf-8"))
     return hash_object.digest().hex()

apps/cic-ussd/cic_ussd/db/migrations/default/versions/f289e8510444_.py

@@ -24,6 +24,8 @@ def upgrade():
                     sa.Column('preferred_language', sa.String(), nullable=True),
                     sa.Column('password_hash', sa.String(), nullable=True),
                     sa.Column('failed_pin_attempts', sa.Integer(), nullable=False),
+                    sa.Column('guardians', sa.String(), nullable=True),
+                    sa.Column('guardian_quora', sa.Integer(), nullable=False),
                     sa.Column('status', sa.Integer(), nullable=False),
                     sa.Column('created', sa.DateTime(), nullable=False),
                     sa.Column('updated', sa.DateTime(), nullable=False),

apps/cic-ussd/cic_ussd/db/models/account.py

@@ -4,6 +4,8 @@ import json
 # external imports
 from cic_eth.api import Api
 from cic_types.condiments import MetadataPointer
+from sqlalchemy import Column, Integer, String
+from sqlalchemy.orm.session import Session
 
 # local imports
 from cic_ussd.account.metadata import get_cached_preferred_language, parse_account_metadata
@@ -12,8 +14,9 @@ from cic_ussd.db.enum import AccountStatus
 from cic_ussd.db.models.base import SessionBase
 from cic_ussd.db.models.task_tracker import TaskTracker
 from cic_ussd.encoder import check_password_hash, create_password_hash
-from sqlalchemy import Column, Integer, String
+from cic_ussd.phone_number import Support
-from sqlalchemy.orm.session import Session
+
+support_phone = Support.phone_number
 
 
 class Account(SessionBase):
@@ -29,12 +32,16 @@ class Account(SessionBase):
     failed_pin_attempts = Column(Integer)
     status = Column(Integer)
     preferred_language = Column(String)
+    guardians = Column(String)
+    guardian_quora = Column(Integer)
 
     def __init__(self, blockchain_address, phone_number):
         self.blockchain_address = blockchain_address
         self.phone_number = phone_number
         self.password_hash = None
         self.failed_pin_attempts = 0
+        # self.guardians = f'{support_phone}' if support_phone else None
+        self.guardian_quora = 1
         self.status = AccountStatus.PENDING.value
 
     def __repr__(self):
@@ -45,6 +52,28 @@ class Account(SessionBase):
         self.failed_pin_attempts = 0
         self.status = AccountStatus.ACTIVE.value
 
+    def add_guardian(self, phone_number: str):
+        set_guardians = phone_number
+        if self.guardians:
+            set_guardians = self.guardians.split(',')
+            set_guardians.append(phone_number)
+            ','.join(set_guardians)
+        self.guardians = set_guardians
+
+    def remove_guardian(self, phone_number: str):
+        set_guardians = self.guardians.split(',')
+        set_guardians.remove(phone_number)
+        if len(set_guardians) > 1:
+            self.guardians = ','.join(set_guardians)
+        else:
+            self.guardians = set_guardians[0]
+
+    def get_guardians(self) -> list:
+        return self.guardians.split(',') if self.guardians else []
+
+    def set_guardian_quora(self, quora: int):
+        self.guardian_quora = quora
+
     def create_password(self, password):
         """This method takes a password value and hashes the value before assigning it to the corresponding
         `hashed_password` attribute in the user record.

apps/cic-ussd/cic_ussd/db/ussd_menu.json

@@ -287,7 +287,132 @@
             "display_key": "ussd.kenya.dob_edit_pin_authorization",
             "name": "dob_edit_pin_authorization",
             "parent": "metadata_management"
+        },
+        "49": {
+            "description": "Menu to display first set of tokens in the account's token list.",
+            "display_key": "ussd.kenya.first_account_tokens_set",
+            "name": "first_account_tokens_set",
+            "parent": null
+        },
+        "50": {
+            "description": "Menu to display middle set of tokens in the account's token list.",
+            "display_key": "ussd.kenya.middle_account_tokens_set",
+            "name": "middle_account_tokens_set",
+            "parent": null
+        },
+        "51": {
+            "description": "Menu to display last set of tokens in the account's token list.",
+            "display_key": "ussd.kenya.last_account_tokens_set",
+            "name": "last_account_tokens_set",
+            "parent": null
+        },
+        "52": {
+            "description": "Pin entry menu for setting an active token.",
+            "display_key": "ussd.kenya.token_selection_pin_authorization",
+            "name": "token_selection_pin_authorization",
+            "parent": null
+        },
+        "53": {
+            "description": "Exit following a successful active token setting.",
+            "display_key": "ussd.kenya.exit_successful_token_selection",
+            "name": "exit_successful_token_selection",
+            "parent": null
+        },
+        "54": {
+            "description": "Pin management menu for operations related to an account's pin.",
+            "display_key": "ussd.kenya.pin_management",
+            "name": "pin_management",
+            "parent": "start"
+        },
+        "55": {
+            "description": "Phone number entry for account whose pin is being reset.",
+            "display_key": "ussd.kenya.reset_guarded_pin",
+            "name": "reset_guarded_pin",
+            "parent": "pin_management"
+        },
+        "56": {
+            "description": "Pin entry for initiating request to reset an account's pin.",
+            "display_key": "ussd.kenya.reset_guarded_pin_authorization",
+            "name": "reset_guarded_pin_authorization",
+            "parent": "pin_management"
+        },
+        "57": {
+            "description": "Exit menu following successful pin reset initiation.",
+            "display_key": "ussd.kenya.exit_pin_reset_initiated_success",
+            "name": "exit_pin_reset_initiated_success",
+            "parent": "pin_management"
+        },
+        "58": {
+            "description": "Exit menu in the event that an account is not a set guardian.",
+            "display_key": "ussd.kenya.exit_not_authorized_for_pin_reset",
+            "name": "exit_not_authorized_for_pin_reset",
+            "parent": "pin_management"
+        },
+        "59": {
+            "description": "Pin guard menu for handling guardianship operations.",
+            "display_key": "ussd.kenya.guard_pin",
+            "name": "guard_pin",
+            "parent": "pin_management"
+        },
+        "60": {
+            "description": "Pin entry to display a list of set guardians.",
+            "display_key": "ussd.kenya.guardian_list_pin_authorization",
+            "name": "guardian_list_pin_authorization",
+            "parent": "guard_pin"
+        },
+        "61": {
+            "description": "Menu to display list of set guardians.",
+            "display_key": "ussd.kenya.guardian_list",
+            "name": "guardian_list",
+            "parent": "guard_pin"
+        },
+        "62": {
+            "description": "Phone number entry to add an account as a guardian to reset pin.",
+            "display_key": "ussd.kenya.add_guardian",
+            "name": "add_guardian",
+            "parent": "guard_pin"
+        },
+        "63": {
+            "description": "Pin entry to confirm addition of an account as a guardian.",
+            "display_key": "ussd.kenya.add_guardian_pin_authorization",
+            "name": "add_guardian_pin_authorization",
+            "parent": "guard_pin"
+        },
+        "64": {
+            "description": "Exit menu when an account is successfully added as pin reset guardian.",
+            "display_key": "ussd.kenya.exit_guardian_addition_success",
+            "name": "exit_guardian_addition_success",
+            "parent": "guard_pin"
+        },
+        "65": {
+            "description": "Phone number entry to remove an account as a guardian to reset pin.",
+            "display_key": "ussd.kenya.remove_guardian",
+            "name": "remove_guardian",
+            "parent": "guard_pin"
+        },
+        "66": {
+            "description": "Pin entry to confirm removal of an account as a guardian.",
+            "display_key": "ussd.kenya.remove_guardian_pin_authorization",
+            "name": "remove_guardian_pin_authorization",
+            "parent": "guard_pin"
+        },
+        "67": {
+            "description": "Exit menu when an account is successfully removed as pin reset guardian.",
+            "display_key": "ussd.kenya.exit_guardian_removal_success",
+            "name": "exit_guardian_removal_success",
+            "parent": "guard_pin"
+        },
+        "68": {
+            "description": "Exit menu when invalid phone number entry for guardian addition. ",
+            "display_key": "ussd.kenya.exit_invalid_guardian_addition",
+            "name": "exit_invalid_guardian_addition",
+            "parent": "guard_pin"
+        },
+        "69": {
+            "description": "Exit menu when invalid phone number entry for guardian removal. ",
+            "display_key": "ussd.kenya.exit_invalid_guardian_removal",
+            "name": "exit_invalid_guardian_removal",
+            "parent": "guard_pin"
         }
-
     }
 }

apps/cic-ussd/cic_ussd/metadata/base.py

@@ -13,7 +13,7 @@ logg = logging.getLogger(__file__)
 
 
 class UssdMetadataHandler(MetadataRequestsHandler):
-    def __init__(self, cic_type: MetadataPointer, identifier: bytes):
+    def __init__(self, identifier: bytes, cic_type: MetadataPointer = None):
         super().__init__(cic_type, identifier)
 
     def cache_metadata(self, data: str):

apps/cic-ussd/cic_ussd/metadata/tokens.py

@@ -0,0 +1,54 @@
+# standard imports
+from typing import Dict, Optional
+
+# external imports
+import json
+
+from cic_types.condiments import MetadataPointer
+
+# local imports
+from .base import UssdMetadataHandler
+from cic_ussd.cache import cache_data
+from cic_ussd.error import MetadataNotFoundError
+
+
+class TokenMetadata(UssdMetadataHandler):
+    def __init__(self, identifier: bytes, **kwargs):
+        super(TokenMetadata, self).__init__(identifier=identifier, **kwargs)
+
+
+def token_metadata_handler(metadata_client: TokenMetadata) -> Optional[Dict]:
+    """
+    :param metadata_client:
+    :type metadata_client:
+    :return:
+    :rtype:
+    """
+    result = metadata_client.query()
+    token_metadata = result.json()
+    if not token_metadata:
+        raise MetadataNotFoundError(f'No metadata found at: {metadata_client.metadata_pointer} for: {metadata_client.identifier.decode("utf-8")}')
+    cache_data(metadata_client.metadata_pointer, json.dumps(token_metadata))
+    return token_metadata
+
+
+def query_token_metadata(identifier: bytes):
+    """
+    :param identifier:
+    :type identifier:
+    :return:
+    :rtype:
+    """
+    token_metadata_client = TokenMetadata(identifier=identifier, cic_type=MetadataPointer.TOKEN_META_SYMBOL)
+    return token_metadata_handler(token_metadata_client)
+
+
+def query_token_info(identifier: bytes):
+    """
+    :param identifier:
+    :type identifier:
+    :return:
+    :rtype:
+    """
+    token_info_client = TokenMetadata(identifier=identifier, cic_type=MetadataPointer.TOKEN_PROOF_SYMBOL)
+    return token_metadata_handler(token_info_client)

apps/cic-ussd/cic_ussd/phone_number.py

@@ -5,7 +5,6 @@ from typing import Optional
 import phonenumbers
 
 # local imports
-from cic_ussd.db.models.account import Account
 
 
 class E164Format:

apps/cic-ussd/cic_ussd/processor/menu.py

@@ -9,6 +9,7 @@ from cic_types.condiments import MetadataPointer
 
 # local imports
 from cic_ussd.account.balance import (calculate_available_balance,
+                                      get_account_tokens_balance,
                                       get_adjusted_balance,
                                       get_balances,
                                       get_cached_adjusted_balance,
@@ -21,13 +22,20 @@ from cic_ussd.account.statement import (
     query_statement,
     statement_transaction_set
 )
-from cic_ussd.account.tokens import get_default_token_symbol
+from cic_ussd.account.tokens import (create_account_tokens_list,
+                                     get_active_token_symbol,
+                                     get_cached_token_data,
+                                     get_cached_token_symbol_list,
+                                     get_cached_token_data_list,
+                                     parse_token_list,
+                                     token_list_set)
 from cic_ussd.account.transaction import from_wei, to_wei
 from cic_ussd.cache import cache_data_key, cache_data
 from cic_ussd.db.models.account import Account
 from cic_ussd.metadata import PersonMetadata
 from cic_ussd.phone_number import Support
 from cic_ussd.processor.util import parse_person_metadata
+from cic_ussd.session.ussd_session import save_session_data
 from cic_ussd.translation import translation_for
 from sqlalchemy.orm.session import Session
 
@@ -48,22 +56,27 @@ class MenuProcessor:
         :return:
         :rtype:
         """
-        available_balance = get_cached_available_balance(self.account.blockchain_address)
+
         adjusted_balance = get_cached_adjusted_balance(self.identifier)
-        token_symbol = get_default_token_symbol()
+        token_symbol = get_active_token_symbol(self.account.blockchain_address)
+        token_data = get_cached_token_data(self.account.blockchain_address, token_symbol)
         preferred_language = get_cached_preferred_language(self.account.blockchain_address)
         if not preferred_language:
             preferred_language = i18n.config.get('fallback')
         with_available_balance = f'{self.display_key}.available_balance'
         with_fees = f'{self.display_key}.with_fees'
+        decimals = token_data.get('decimals')
+        available_balance = get_cached_available_balance(decimals, [self.identifier, token_symbol.encode('utf-8')])
         if not adjusted_balance:
             return translation_for(key=with_available_balance,
                                    preferred_language=preferred_language,
                                    available_balance=available_balance,
                                    token_symbol=token_symbol)
+
         adjusted_balance = json.loads(adjusted_balance)
-        tax_wei = to_wei(int(available_balance)) - int(adjusted_balance)
+
-        tax = from_wei(int(tax_wei))
+        tax_wei = to_wei(decimals, int(available_balance)) - int(adjusted_balance)
+        tax = from_wei(decimals, int(tax_wei))
         return translation_for(key=with_fees,
                                preferred_language=preferred_language,
                                available_balance=available_balance,
@@ -76,21 +89,25 @@ class MenuProcessor:
         :rtype:
         """
         cached_statement = get_cached_statement(self.account.blockchain_address)
-        statement = json.loads(cached_statement)
+        transaction_sets = []
-        statement_transactions = parse_statement_transactions(statement)
+        if cached_statement:
-        transaction_sets = [statement_transactions[tx:tx + 3] for tx in range(0, len(statement_transactions), 3)]
+            statement = json.loads(cached_statement)
+            statement_transactions = parse_statement_transactions(statement)
+            transaction_sets = [statement_transactions[tx:tx + 3] for tx in range(0, len(statement_transactions), 3)]
         preferred_language = get_cached_preferred_language(self.account.blockchain_address)
         if not preferred_language:
             preferred_language = i18n.config.get('fallback')
-        first_transaction_set = []
+        no_transaction_history = statement_transaction_set(preferred_language, transaction_sets)
-        middle_transaction_set = []
+        first_transaction_set = no_transaction_history
-        last_transaction_set = []
+        middle_transaction_set = no_transaction_history
+        last_transaction_set = no_transaction_history
         if transaction_sets:
             first_transaction_set = statement_transaction_set(preferred_language, transaction_sets[0])
         if len(transaction_sets) >= 2:
             middle_transaction_set = statement_transaction_set(preferred_language, transaction_sets[1])
         if len(transaction_sets) >= 3:
             last_transaction_set = statement_transaction_set(preferred_language, transaction_sets[2])
+
         if self.display_key == 'ussd.kenya.first_transaction_set':
             return translation_for(
                 self.display_key, preferred_language, first_transaction_set=first_transaction_set
@@ -104,7 +121,63 @@ class MenuProcessor:
                 self.display_key, preferred_language, last_transaction_set=last_transaction_set
             )
 
-    def help(self):
+    def add_guardian_pin_authorization(self):
+        guardian_information = self.guardian_metadata()
+        return self.pin_authorization(guardian_information=guardian_information)
+
+    def guardian_list(self):
+        preferred_language = get_cached_preferred_language(self.account.blockchain_address)
+        if not preferred_language:
+            preferred_language = i18n.config.get('fallback')
+        set_guardians = self.account.get_guardians()
+        if set_guardians:
+            guardians_list = ''
+            guardians_list_header = translation_for('helpers.guardians_list_header', preferred_language)
+            for phone_number in set_guardians:
+                guardian = Account.get_by_phone_number(phone_number, self.session)
+                guardian_information = guardian.standard_metadata_id()
+                guardians_list += f'{guardian_information}\n'
+            guardians_list = guardians_list_header + '\n' + guardians_list
+        else:
+            guardians_list = translation_for('helpers.no_guardians_list', preferred_language)
+        return translation_for(self.display_key, preferred_language, guardians_list=guardians_list)
+
+    def account_tokens(self) -> str:
+        cached_token_data_list = get_cached_token_data_list(self.account.blockchain_address)
+        token_data_list = parse_token_list(cached_token_data_list)
+        token_list_sets = [token_data_list[tds:tds + 3] for tds in range(0, len(token_data_list), 3)]
+        preferred_language = get_cached_preferred_language(self.account.blockchain_address)
+        if not preferred_language:
+            preferred_language = i18n.config.get('fallback')
+        no_token_list = token_list_set(preferred_language, [])
+        first_account_tokens_set = no_token_list
+        middle_account_tokens_set = no_token_list
+        last_account_tokens_set = no_token_list
+        if token_list_sets:
+            data = {
+                'account_tokens_list': cached_token_data_list
+            }
+            save_session_data(data=data, queue='cic-ussd', session=self.session, ussd_session=self.ussd_session)
+            first_account_tokens_set = token_list_set(preferred_language, token_list_sets[0])
+
+        if len(token_list_sets) >= 2:
+            middle_account_tokens_set = token_list_set(preferred_language, token_list_sets[1])
+        if len(token_list_sets) >= 3:
+            last_account_tokens_set = token_list_set(preferred_language, token_list_sets[2])
+        if self.display_key == 'ussd.kenya.first_account_tokens_set':
+            return translation_for(
+                self.display_key, preferred_language, first_account_tokens_set=first_account_tokens_set
+            )
+        if self.display_key == 'ussd.kenya.middle_account_tokens_set':
+            return translation_for(
+                self.display_key, preferred_language, middle_account_tokens_set=middle_account_tokens_set
+            )
+        if self.display_key == 'ussd.kenya.last_account_tokens_set':
+            return translation_for(
+                self.display_key, preferred_language, last_account_tokens_set=last_account_tokens_set
+            )
+
+    def help(self) -> str:
         preferred_language = get_cached_preferred_language(self.account.blockchain_address)
         if not preferred_language:
             preferred_language = i18n.config.get('fallback')
@@ -155,30 +228,48 @@ class MenuProcessor:
             f'{self.display_key}.retry', preferred_language, retry_pin_entry=retry_pin_entry
         )
 
+    def guarded_account_metadata(self):
+        guarded_account_phone_number = self.ussd_session.get('data').get('guarded_account_phone_number')
+        guarded_account = Account.get_by_phone_number(guarded_account_phone_number, self.session)
+        return guarded_account.standard_metadata_id()
+
+    def guardian_metadata(self):
+        guardian_phone_number = self.ussd_session.get('data').get('guardian_phone_number')
+        guardian = Account.get_by_phone_number(guardian_phone_number, self.session)
+        return guardian.standard_metadata_id()
+
+    def reset_guarded_pin_authorization(self):
+        guarded_account_information = self.guarded_account_metadata()
+        return self.pin_authorization(guarded_account_information=guarded_account_information)
+
     def start_menu(self):
         """
         :return:
         :rtype:
         """
         chain_str = Chain.spec.__str__()
-        token_symbol = get_default_token_symbol()
+        token_symbol = get_active_token_symbol(self.account.blockchain_address)
+        token_data = get_cached_token_data(self.account.blockchain_address, token_symbol)
+        decimals = token_data.get('decimals')
         blockchain_address = self.account.blockchain_address
         balances = get_balances(blockchain_address, chain_str, token_symbol, False)[0]
-        key = cache_data_key(self.identifier, MetadataPointer.BALANCES)
+        key = cache_data_key([self.identifier, token_symbol.encode('utf-8')], MetadataPointer.BALANCES)
         cache_data(key, json.dumps(balances))
-        available_balance = calculate_available_balance(balances)
+        available_balance = calculate_available_balance(balances, decimals)
         now = datetime.now()
         if (now - self.account.created).days >= 30:
             if available_balance <= 0:
                 logg.info(f'Not retrieving adjusted balance, available balance: {available_balance} is insufficient.')
             else:
                 timestamp = int((now - timedelta(30)).timestamp())
-                adjusted_balance = get_adjusted_balance(to_wei(int(available_balance)), chain_str, timestamp, token_symbol)
+                adjusted_balance = get_adjusted_balance(to_wei(decimals, int(available_balance)), chain_str, timestamp, token_symbol)
-                key = cache_data_key(self.identifier, MetadataPointer.BALANCES_ADJUSTED)
+                key = cache_data_key([self.identifier, token_symbol.encode('utf-8')], MetadataPointer.BALANCES_ADJUSTED)
                 cache_data(key, json.dumps(adjusted_balance))
 
         query_statement(blockchain_address)
-
+        token_symbols_list = get_cached_token_symbol_list(blockchain_address)
+        get_account_tokens_balance(blockchain_address, chain_str, token_symbols_list)
+        create_account_tokens_list(blockchain_address)
         preferred_language = get_cached_preferred_language(self.account.blockchain_address)
         if not preferred_language:
             preferred_language = i18n.config.get('fallback')
@@ -186,6 +277,20 @@ class MenuProcessor:
             self.display_key, preferred_language, account_balance=available_balance, account_token_name=token_symbol
         )
 
+    def token_selection_pin_authorization(self) -> str:
+        """
+        :return:
+        :rtype:
+        """
+        selected_token = self.ussd_session.get('data').get('selected_token')
+        token_name = selected_token.get('name')
+        token_symbol = selected_token.get('symbol')
+        token_issuer = selected_token.get('issuer')
+        token_contact = selected_token.get('contact')
+        token_location = selected_token.get('location')
+        token_data = f'{token_name} ({token_symbol})\n{token_issuer}\n{token_contact}\n{token_location}\n'
+        return self.pin_authorization(token_data=token_data)
+
     def transaction_pin_authorization(self) -> str:
         """
         :return:
@@ -195,36 +300,81 @@ class MenuProcessor:
         recipient = Account.get_by_phone_number(recipient_phone_number, self.session)
         tx_recipient_information = recipient.standard_metadata_id()
         tx_sender_information = self.account.standard_metadata_id()
-        token_symbol = get_default_token_symbol()
+        token_symbol = get_active_token_symbol(self.account.blockchain_address)
+        token_data = get_cached_token_data(self.account.blockchain_address, token_symbol)
         user_input = self.ussd_session.get('data').get('transaction_amount')
-        transaction_amount = to_wei(value=int(user_input))
+        decimals = token_data.get('decimals')
+        transaction_amount = to_wei(decimals=decimals, value=int(user_input))
         return self.pin_authorization(
             recipient_information=tx_recipient_information,
-            transaction_amount=from_wei(transaction_amount),
+            transaction_amount=from_wei(decimals, transaction_amount),
             token_symbol=token_symbol,
             sender_information=tx_sender_information
         )
 
+    def exit_guardian_addition_success(self) -> str:
+        guardian_information = self.guardian_metadata()
+        preferred_language = get_cached_preferred_language(self.account.blockchain_address)
+        if not preferred_language:
+            preferred_language = i18n.config.get('fallback')
+        return translation_for(self.display_key,
+                               preferred_language,
+                               guardian_information=guardian_information)
+
+    def exit_guardian_removal_success(self):
+        guardian_information = self.guardian_metadata()
+        preferred_language = get_cached_preferred_language(self.account.blockchain_address)
+        if not preferred_language:
+            preferred_language = i18n.config.get('fallback')
+        return translation_for(self.display_key,
+                               preferred_language,
+                               guardian_information=guardian_information)
+
+    def exit_invalid_guardian_addition(self):
+        failure_reason = self.ussd_session.get('data').get('failure_reason')
+        preferred_language = get_cached_preferred_language(self.account.blockchain_address)
+        if not preferred_language:
+            preferred_language = i18n.config.get('fallback')
+        return translation_for(self.display_key, preferred_language, error_exit=failure_reason)
+
+    def exit_invalid_guardian_removal(self):
+        failure_reason = self.ussd_session.get('data').get('failure_reason')
+        preferred_language = get_cached_preferred_language(self.account.blockchain_address)
+        if not preferred_language:
+            preferred_language = i18n.config.get('fallback')
+        return translation_for(self.display_key, preferred_language, error_exit=failure_reason)
+
+    def exit_pin_reset_initiated_success(self):
+        guarded_account_information = self.guarded_account_metadata()
+        preferred_language = get_cached_preferred_language(self.account.blockchain_address)
+        if not preferred_language:
+            preferred_language = i18n.config.get('fallback')
+        return translation_for(self.display_key,
+                               preferred_language,
+                               guarded_account_information=guarded_account_information)
+
     def exit_insufficient_balance(self):
         """
         :return:
         :rtype:
         """
-        available_balance = get_cached_available_balance(self.account.blockchain_address)
         preferred_language = get_cached_preferred_language(self.account.blockchain_address)
         if not preferred_language:
             preferred_language = i18n.config.get('fallback')
         session_data = self.ussd_session.get('data')
+        token_symbol = get_active_token_symbol(self.account.blockchain_address)
+        token_data = get_cached_token_data(self.account.blockchain_address, token_symbol)
+        decimals = token_data.get('decimals')
+        available_balance = get_cached_available_balance(decimals, [self.identifier, token_symbol.encode('utf-8')])
         transaction_amount = session_data.get('transaction_amount')
-        transaction_amount = to_wei(value=int(transaction_amount))
+        transaction_amount = to_wei(decimals=decimals, value=int(transaction_amount))
-        token_symbol = get_default_token_symbol()
         recipient_phone_number = self.ussd_session.get('data').get('recipient_phone_number')
         recipient = Account.get_by_phone_number(recipient_phone_number, self.session)
         tx_recipient_information = recipient.standard_metadata_id()
         return translation_for(
             self.display_key,
             preferred_language,
-            amount=from_wei(transaction_amount),
+            amount=from_wei(decimals, transaction_amount),
             token_symbol=token_symbol,
             recipient_information=tx_recipient_information,
             token_balance=available_balance
@@ -242,6 +392,14 @@ class MenuProcessor:
             preferred_language = i18n.config.get('fallback')
         return translation_for('ussd.kenya.exit_pin_blocked', preferred_language, support_phone=Support.phone_number)
 
+    def exit_successful_token_selection(self) -> str:
+        selected_token = self.ussd_session.get('data').get('selected_token')
+        token_symbol = selected_token.get('symbol')
+        preferred_language = get_cached_preferred_language(self.account.blockchain_address)
+        if not preferred_language:
+            preferred_language = i18n.config.get('fallback')
+        return translation_for(self.display_key,preferred_language,token_symbol=token_symbol)
+
     def exit_successful_transaction(self):
         """
         :return:
@@ -251,8 +409,10 @@ class MenuProcessor:
         preferred_language = get_cached_preferred_language(self.account.blockchain_address)
         if not preferred_language:
             preferred_language = i18n.config.get('fallback')
-        transaction_amount = to_wei(amount)
+        token_symbol = get_active_token_symbol(self.account.blockchain_address)
-        token_symbol = get_default_token_symbol()
+        token_data = get_cached_token_data(self.account.blockchain_address, token_symbol)
+        decimals = token_data.get('decimals')
+        transaction_amount = to_wei(decimals, amount)
         recipient_phone_number = self.ussd_session.get('data').get('recipient_phone_number')
         recipient = Account.get_by_phone_number(phone_number=recipient_phone_number, session=self.session)
         tx_recipient_information = recipient.standard_metadata_id()
@@ -260,7 +420,7 @@ class MenuProcessor:
         return translation_for(
             self.display_key,
             preferred_language,
-            transaction_amount=from_wei(transaction_amount),
+            transaction_amount=from_wei(decimals, transaction_amount),
             token_symbol=token_symbol,
             recipient_information=tx_recipient_information,
             sender_information=tx_sender_information
@@ -294,15 +454,42 @@ def response(account: Account, display_key: str, menu_name: str, session: Sessio
     if menu_name == 'transaction_pin_authorization':
         return menu_processor.transaction_pin_authorization()
 
+    if menu_name == 'token_selection_pin_authorization':
+        return menu_processor.token_selection_pin_authorization()
+
     if menu_name == 'exit_insufficient_balance':
         return menu_processor.exit_insufficient_balance()
 
+    if menu_name == 'exit_invalid_guardian_addition':
+        return menu_processor.exit_invalid_guardian_addition()
+
+    if menu_name == 'exit_invalid_guardian_removal':
+        return menu_processor.exit_invalid_guardian_removal()
+
     if menu_name == 'exit_successful_transaction':
         return menu_processor.exit_successful_transaction()
 
+    if menu_name == 'exit_guardian_addition_success':
+        return menu_processor.exit_guardian_addition_success()
+
+    if menu_name == 'exit_guardian_removal_success':
+        return menu_processor.exit_guardian_removal_success()
+
+    if menu_name == 'exit_pin_reset_initiated_success':
+        return menu_processor.exit_pin_reset_initiated_success()
+
     if menu_name == 'account_balances':
         return menu_processor.account_balances()
 
+    if menu_name == 'guardian_list':
+        return menu_processor.guardian_list()
+
+    if menu_name == 'add_guardian_pin_authorization':
+        return menu_processor.add_guardian_pin_authorization()
+
+    if menu_name == 'reset_guarded_pin_authorization':
+        return menu_processor.reset_guarded_pin_authorization()
+
     if 'pin_authorization' in menu_name:
         return menu_processor.pin_authorization()
 
@@ -312,6 +499,9 @@ def response(account: Account, display_key: str, menu_name: str, session: Sessio
     if 'transaction_set' in menu_name:
         return menu_processor.account_statement()
 
+    if 'account_tokens_set' in menu_name:
+        return menu_processor.account_tokens()
+
     if menu_name == 'display_user_metadata':
         return menu_processor.person_metadata()
 
@@ -321,6 +511,9 @@ def response(account: Account, display_key: str, menu_name: str, session: Sessio
     if menu_name == 'exit_pin_blocked':
         return menu_processor.exit_pin_blocked()
 
+    if menu_name == 'exit_successful_token_selection':
+        return menu_processor.exit_successful_token_selection()
+
     preferred_language = get_cached_preferred_language(account.blockchain_address)
 
     return translation_for(display_key, preferred_language)

apps/cic-ussd/cic_ussd/processor/util.py

@@ -1,15 +1,22 @@
 # standard imports
 import datetime
 import json
+import logging
+import time
+from typing import Union
 
 # external imports
+from cic_types.condiments import MetadataPointer
 from cic_types.models.person import get_contact_data_from_vcard
 from tinydb.table import Document
 
 # local imports
+from cic_ussd.cache import cache_data_key, get_cached_data
 from cic_ussd.menu.ussd_menu import UssdMenu
 from cic_ussd.translation import translation_for
 
+logg = logging.getLogger(__file__)
+
 
 def latest_input(user_input: str) -> str:
     """
@@ -76,3 +83,66 @@ def resume_last_ussd_session(last_state: str) -> Document:
     if last_state in non_reusable_states:
         return UssdMenu.find_by_name('start')
     return UssdMenu.find_by_name(last_state)
+
+
+def wait_for_cache(identifier: Union[list, bytes], resource_name: str, salt: MetadataPointer, interval: int = 1, max_retry: int = 5):
+    """
+    :param identifier:
+    :type identifier:
+    :param interval:
+    :type interval:
+    :param resource_name:
+    :type resource_name:
+    :param salt:
+    :type salt:
+    :param max_retry:
+    :type max_retry:
+    :return:
+    :rtype:
+    """
+    key = cache_data_key(identifier=identifier, salt=salt)
+    resource = get_cached_data(key)
+    counter = 0
+    while resource is None:
+        logg.debug(f'Waiting for: {resource_name} at: {key}. Checking after: {interval} ...')
+        time.sleep(interval)
+        counter += 1
+        resource = get_cached_data(key)
+        if resource is not None:
+            logg.debug(f'{resource_name} now available.')
+            break
+        else:
+            if counter == max_retry:
+                logg.debug(f'Could not find: {resource_name} within: {max_retry}')
+                break
+
+
+def wait_for_session_data(resource_name: str, session_data_key: str, ussd_session: dict, interval: int = 1, max_retry: int = 5):
+    """
+    :param interval:
+    :type interval:
+    :param resource_name:
+    :type resource_name:
+    :param session_data_key:
+    :type session_data_key:
+    :param ussd_session:
+    :type ussd_session:
+    :param max_retry:
+    :type max_retry:
+    :return:
+    :rtype:
+    """
+    session_data = ussd_session.get('data').get(session_data_key)
+    counter = 0
+    while session_data is None:
+        logg.debug(f'Waiting for: {resource_name}. Checking after: {interval} ...')
+        time.sleep(interval)
+        counter += 1
+        session_data = ussd_session.get('data').get(session_data_key)
+        if session_data is not None:
+            logg.debug(f'{resource_name} now available.')
+            break
+        else:
+            if counter == max_retry:
+                logg.debug(f'Could not find: {resource_name} within: {max_retry}')
+                break

apps/cic-ussd/cic_ussd/runnable/client.py

@@ -63,7 +63,6 @@ elif ssl == 0:
 else:
     ssl = True
 
-valid_service_codes = config.get('USSD_SERVICE_CODE').split(",")
 def main():
 
     # TODO: improve url building 
@@ -79,7 +78,7 @@ def main():
     session = uuid.uuid4().hex
     data = {
             'sessionId': session,
-            'serviceCode': valid_service_codes[0],
+            'serviceCode': config.get('USSD_SERVICE_CODE'),
             'phoneNumber': args.phone,
             'text': "",
         }

apps/cic-ussd/cic_ussd/session/ussd_session.py

@@ -13,7 +13,7 @@ from cic_ussd.cache import Cache
 from cic_ussd.db.models.base import SessionBase
 from cic_ussd.db.models.ussd_session import UssdSession as DbUssdSession
 
-logg = logging.getLogger()
+logg = logging.getLogger(__file__)
 
 
 class UssdSession:
@@ -239,11 +239,16 @@ def save_session_data(queue: Optional[str], session: Session, data: dict, ussd_s
     :param ussd_session: A ussd session passed to the state machine.
     :type ussd_session: UssdSession
     """
+    logg.debug(f'Saving: {data} session data to: {ussd_session}')
     cache = Cache.store
     external_session_id = ussd_session.get('external_session_id')
     existing_session_data = ussd_session.get('data')
     if existing_session_data:
-        data = {**existing_session_data, **data}
+        # replace session data entry
+        keys = data.keys()
+        for key in keys:
+            existing_session_data[key] = data[key]
+        data = existing_session_data
     in_redis_ussd_session = cache.get(external_session_id)
     in_redis_ussd_session = json.loads(in_redis_ussd_session)
     create_or_update_session(

apps/cic-ussd/cic_ussd/state_machine/logic/menu.py

@@ -81,6 +81,18 @@ def menu_six_selected(state_machine_data: Tuple[str, dict, Account, Session]) ->
     return user_input == '6'
 
 
+def menu_nine_selected(state_machine_data: Tuple[str, dict, Account, Session]) -> bool:
+    """
+    This function checks that user input matches a string with value '6'
+    :param state_machine_data: A tuple containing user input, a ussd session and user object.
+    :type state_machine_data: tuple
+    :return: A user input's match with '6'
+    :rtype: bool
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    return user_input == '9'
+
+
 def menu_zero_zero_selected(state_machine_data: Tuple[str, dict, Account, Session]) -> bool:
     """
     This function checks that user input matches a string with value '00'
@@ -93,6 +105,30 @@ def menu_zero_zero_selected(state_machine_data: Tuple[str, dict, Account, Sessio
     return user_input == '00'
 
 
+def menu_eleven_selected(state_machine_data: Tuple[str, dict, Account, Session]) -> bool:
+    """
+    This function checks that user input matches a string with value '11'
+    :param state_machine_data: A tuple containing user input, a ussd session and user object.
+    :type state_machine_data: tuple
+    :return: A user input's match with '99'
+    :rtype: bool
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    return user_input == '11'
+
+
+def menu_twenty_two_selected(state_machine_data: Tuple[str, dict, Account, Session]) -> bool:
+    """
+    This function checks that user input matches a string with value '22'
+    :param state_machine_data: A tuple containing user input, a ussd session and user object.
+    :type state_machine_data: tuple
+    :return: A user input's match with '99'
+    :rtype: bool
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    return user_input == '22'
+
+
 def menu_ninety_nine_selected(state_machine_data: Tuple[str, dict, Account, Session]) -> bool:
     """
     This function checks that user input matches a string with value '99'

apps/cic-ussd/cic_ussd/state_machine/logic/pin.py

@@ -3,7 +3,6 @@ user's pin.
 """
 
 # standard imports
-import json
 import logging
 import re
 from typing import Tuple
@@ -16,6 +15,7 @@ from cic_ussd.db.models.account import Account
 from cic_ussd.db.models.base import SessionBase
 from cic_ussd.db.enum import AccountStatus
 from cic_ussd.encoder import create_password_hash, check_password_hash
+from cic_ussd.processor.util import wait_for_session_data
 from cic_ussd.session.ussd_session import create_or_update_session, persist_ussd_session
 
 
@@ -31,11 +31,8 @@ def is_valid_pin(state_machine_data: Tuple[str, dict, Account, Session]) -> bool
     :rtype: bool
     """
     user_input, ussd_session, account, session = state_machine_data
-    pin_is_valid = False
     matcher = r'^\d{4}$'
-    if re.match(matcher, user_input):
+    return bool(re.match(matcher, user_input))
-        pin_is_valid = True
-    return pin_is_valid
 
 
 def is_authorized_pin(state_machine_data: Tuple[str, dict, Account, Session]) -> bool:
@@ -68,7 +65,7 @@ def save_initial_pin_to_session_data(state_machine_data: Tuple[str, dict, Accoun
     :param state_machine_data: A tuple containing user input, a ussd session and user object.
     :type state_machine_data: tuple
     """
-    user_input, ussd_session, user, session = state_machine_data
+    user_input, ussd_session, account, session = state_machine_data
     initial_pin = create_password_hash(user_input)
     if ussd_session.get('data'):
         data = ussd_session.get('data')
@@ -97,7 +94,8 @@ def pins_match(state_machine_data: Tuple[str, dict, Account, Session]) -> bool:
     :return: A match between two pin values.
     :rtype: bool
     """
-    user_input, ussd_session, user, session = state_machine_data
+    user_input, ussd_session, account, session = state_machine_data
+    wait_for_session_data('Initial pin', session_data_key='initial_pin', ussd_session=ussd_session)
     initial_pin = ussd_session.get('data').get('initial_pin')
     return check_password_hash(user_input, initial_pin)
 
@@ -107,11 +105,12 @@ def complete_pin_change(state_machine_data: Tuple[str, dict, Account, Session]):
     :param state_machine_data: A tuple containing user input, a ussd session and user object.
     :type state_machine_data: tuple
     """
-    user_input, ussd_session, user, session = state_machine_data
+    user_input, ussd_session, account, session = state_machine_data
     session = SessionBase.bind_session(session=session)
+    wait_for_session_data('Initial pin', session_data_key='initial_pin', ussd_session=ussd_session)
     password_hash = ussd_session.get('data').get('initial_pin')
-    user.password_hash = password_hash
+    account.password_hash = password_hash
-    session.add(user)
+    session.add(account)
     session.flush()
     SessionBase.release_session(session=session)
 
@@ -134,6 +133,6 @@ def is_valid_new_pin(state_machine_data: Tuple[str, dict, Account, Session]) ->
     :return: A match between two pin values.
     :rtype: bool
     """
-    user_input, ussd_session, user, session = state_machine_data
+    user_input, ussd_session, account, session = state_machine_data
-    is_old_pin = user.verify_password(password=user_input)
+    is_old_pin = account.verify_password(password=user_input)
     return is_valid_pin(state_machine_data=state_machine_data) and not is_old_pin

apps/cic-ussd/cic_ussd/state_machine/logic/pin_guard.py

@@ -0,0 +1,200 @@
+# standard imports
+import logging
+from typing import Tuple
+
+# external imports
+import celery
+import i18n
+from phonenumbers.phonenumberutil import NumberParseException
+from sqlalchemy.orm.session import Session
+
+# local imports
+from cic_ussd.account.metadata import get_cached_preferred_language
+from cic_ussd.db.models.account import Account
+from cic_ussd.db.models.base import SessionBase
+from cic_ussd.phone_number import process_phone_number, E164Format
+from cic_ussd.session.ussd_session import save_session_data
+from cic_ussd.translation import translation_for
+
+
+logg = logging.getLogger(__file__)
+
+
+def save_guardian_to_session_data(state_machine_data: Tuple[str, dict, Account, Session]):
+    """
+    :param state_machine_data:
+    :type state_machine_data:
+    :return:
+    :rtype:
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    session_data = ussd_session.get('data') or {}
+    guardian_phone_number = process_phone_number(phone_number=user_input, region=E164Format.region)
+    session_data['guardian_phone_number'] = guardian_phone_number
+    save_session_data('cic-ussd', session, session_data, ussd_session)
+
+
+def save_guarded_account_session_data(state_machine_data: Tuple[str, dict, Account, Session]):
+    """
+    :param state_machine_data:
+    :type state_machine_data:
+    :return:
+    :rtype:
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    session_data = ussd_session.get('data') or {}
+    guarded_account_phone_number = process_phone_number(phone_number=user_input, region=E164Format.region)
+    session_data['guarded_account_phone_number'] = guarded_account_phone_number
+    save_session_data('cic-ussd', session, session_data, ussd_session)
+
+
+def retrieve_person_metadata(state_machine_data: Tuple[str, dict, Account, Session]):
+    """
+    :param state_machine_data:
+    :type state_machine_data:
+    :return:
+    :rtype:
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    guardian_phone_number = process_phone_number(user_input, E164Format.region)
+    guardian = Account.get_by_phone_number(guardian_phone_number, session)
+    blockchain_address = guardian.blockchain_address
+    s_query_person_metadata = celery.signature(
+        'cic_ussd.tasks.metadata.query_person_metadata', [blockchain_address], queue='cic-ussd')
+    s_query_person_metadata.apply_async()
+
+
+def is_valid_guardian_addition(state_machine_data: Tuple[str, dict, Account, Session]):
+    """
+    :param state_machine_data:
+    :type state_machine_data:
+    :return:
+    :rtype:
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    try:
+        phone_number = process_phone_number(user_input, E164Format.region)
+    except NumberParseException:
+        phone_number = None
+
+    preferred_language = get_cached_preferred_language(account.blockchain_address)
+    if not preferred_language:
+        preferred_language = i18n.config.get('fallback')
+
+    is_valid_account = Account.get_by_phone_number(phone_number, session) is not None
+    is_initiator = phone_number == account.phone_number
+    is_existent_guardian = phone_number in account.get_guardians()
+
+    failure_reason = ''
+    if not is_valid_account:
+        failure_reason = translation_for('helpers.error.no_matching_account', preferred_language)
+
+    if is_initiator:
+        failure_reason = translation_for('helpers.error.is_initiator', preferred_language)
+
+    if is_existent_guardian:
+        failure_reason = translation_for('helpers.error.is_existent_guardian', preferred_language)
+
+    if failure_reason:
+        session_data = ussd_session.get('data') or {}
+        session_data['failure_reason'] = failure_reason
+        save_session_data('cic-ussd', session, session_data, ussd_session)
+
+    return phone_number is not None and is_valid_account and not is_existent_guardian and not is_initiator
+
+
+def add_pin_guardian(state_machine_data: Tuple[str, dict, Account, Session]):
+    """
+    :param state_machine_data:
+    :type state_machine_data:
+    :return:
+    :rtype:
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    guardian_phone_number = ussd_session.get('data').get('guardian_phone_number')
+    account.add_guardian(guardian_phone_number)
+    session.add(account)
+    session.flush()
+    SessionBase.release_session(session=session)
+
+
+def is_set_pin_guardian(account: Account, checked_number: str, preferred_language: str, session: Session, ussd_session: dict):
+    """"""
+    failure_reason = ''
+    set_guardians = []
+    if account:
+        set_guardians = account.get_guardians()
+    else:
+        failure_reason = translation_for('helpers.error.no_matching_account', preferred_language)
+
+    is_set_guardian = checked_number in set_guardians
+    is_initiator = checked_number == account.phone_number
+
+    if not is_set_guardian:
+        failure_reason = translation_for('helpers.error.is_not_existent_guardian', preferred_language)
+
+    if is_initiator:
+        failure_reason = translation_for('helpers.error.is_initiator', preferred_language)
+
+    if failure_reason:
+        session_data = ussd_session.get('data') or {}
+        session_data['failure_reason'] = failure_reason
+        save_session_data('cic-ussd', session, session_data, ussd_session)
+
+    return is_set_guardian and not is_initiator
+
+
+def is_dialers_pin_guardian(state_machine_data: Tuple[str, dict, Account, Session]):
+    user_input, ussd_session, account, session = state_machine_data
+    phone_number = process_phone_number(phone_number=user_input, region=E164Format.region)
+    preferred_language = get_cached_preferred_language(account.blockchain_address)
+    if not preferred_language:
+        preferred_language = i18n.config.get('fallback')
+    return is_set_pin_guardian(account, phone_number, preferred_language, session, ussd_session)
+
+
+def is_others_pin_guardian(state_machine_data: Tuple[str, dict, Account, Session]):
+    user_input, ussd_session, account, session = state_machine_data
+    preferred_language = get_cached_preferred_language(account.blockchain_address)
+    phone_number = process_phone_number(phone_number=user_input, region=E164Format.region)
+    guarded_account = Account.get_by_phone_number(phone_number, session)
+    if not preferred_language:
+        preferred_language = i18n.config.get('fallback')
+    return is_set_pin_guardian(guarded_account, account.phone_number, preferred_language, session, ussd_session)
+
+
+def remove_pin_guardian(state_machine_data: Tuple[str, dict, Account, Session]):
+    """
+    :param state_machine_data:
+    :type state_machine_data:
+    :return:
+    :rtype:
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    guardian_phone_number = ussd_session.get('data').get('guardian_phone_number')
+    account.remove_guardian(guardian_phone_number)
+    session.add(account)
+    session.flush()
+    SessionBase.release_session(session=session)
+
+
+def initiate_pin_reset(state_machine_data: Tuple[str, dict, Account, Session]):
+    """
+    :param state_machine_data:
+    :type state_machine_data:
+    :return:
+    :rtype:
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    session_data = ussd_session.get('data')
+    quorum_count = session_data['quorum_count'] if session_data.get('quorum_count') else 0
+    quorum_count += 1
+    session_data['quorum_count'] = quorum_count
+    save_session_data('cic-ussd', session, session_data, ussd_session)
+    guarded_account_phone_number = session_data.get('guarded_account_phone_number')
+    guarded_account = Account.get_by_phone_number(guarded_account_phone_number, session)
+    if quorum_count >= guarded_account.guardian_quora:
+        guarded_account.reset_pin(session)
+        logg.debug(f'Reset initiated for: {guarded_account.phone_number}')
+        session_data['quorum_count'] = 0
+        save_session_data('cic-ussd', session, session_data, ussd_session)

apps/cic-ussd/cic_ussd/state_machine/logic/sms.py

@@ -6,7 +6,7 @@ from sqlalchemy.orm.session import Session
 
 # local imports
 from cic_ussd.account.metadata import get_cached_preferred_language
-from cic_ussd.account.tokens import get_default_token_symbol
+from cic_ussd.account.tokens import get_active_token_symbol
 from cic_ussd.db.models.account import Account
 from cic_ussd.notifications import Notifier
 from cic_ussd.phone_number import Support
@@ -18,7 +18,7 @@ def upsell_unregistered_recipient(state_machine_data: Tuple[str, dict, Account,
     notifier = Notifier()
     phone_number = ussd_session.get('data')['recipient_phone_number']
     preferred_language = get_cached_preferred_language(account.blockchain_address)
-    token_symbol = get_default_token_symbol()
+    token_symbol = get_active_token_symbol(account.blockchain_address)
     tx_sender_information = account.standard_metadata_id()
     notifier.send_sms_notification('sms.upsell_unregistered_recipient',
                                    phone_number,

apps/cic-ussd/cic_ussd/state_machine/logic/tokens.py

@@ -0,0 +1,69 @@
+# standard imports
+from typing import Tuple
+
+# external imports
+from sqlalchemy.orm.session import Session
+
+# local imports
+from cic_ussd.account.tokens import set_active_token
+from cic_ussd.db.models.account import Account
+from cic_ussd.processor.util import wait_for_session_data
+from cic_ussd.session.ussd_session import save_session_data
+
+
+def is_valid_token_selection(state_machine_data: Tuple[str, dict, Account, Session]):
+    """
+    :param state_machine_data:
+    :type state_machine_data:
+    :return:
+    :rtype:
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    session_data = ussd_session.get('data')
+    account_tokens_list = session_data.get('account_tokens_list')
+    if not account_tokens_list:
+        wait_for_session_data('Account token list', session_data_key='account_tokens_list', ussd_session=ussd_session)
+    if user_input not in ['00', '22']:
+        try:
+            user_input = int(user_input)
+            return user_input <= len(account_tokens_list)
+        except ValueError:
+            user_input = user_input.upper()
+            return any(token_data['symbol'] == user_input for token_data in account_tokens_list)
+
+
+def process_token_selection(state_machine_data: Tuple[str, dict, Account, Session]):
+    """
+    :param state_machine_data:
+    :type state_machine_data:
+    :return:
+    :rtype:
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    account_tokens_list = ussd_session.get('data').get('account_tokens_list')
+    try:
+        user_input = int(user_input)
+        selected_token = account_tokens_list[user_input-1]
+    except ValueError:
+        user_input = user_input.upper()
+        selected_token = next(token_data for token_data in account_tokens_list if token_data['symbol'] == user_input)
+    data = {
+        'selected_token': selected_token
+    }
+    save_session_data(queue='cic-ussd', session=session, data=data, ussd_session=ussd_session)
+
+
+def set_selected_active_token(state_machine_data: Tuple[str, dict, Account, Session]):
+    """
+    :param state_machine_data:
+    :type state_machine_data:
+    :return:
+    :rtype:
+    """
+    user_input, ussd_session, account, session = state_machine_data
+    wait_for_session_data(resource_name='Selected token', session_data_key='selected_token', ussd_session=ussd_session)
+    selected_token = ussd_session.get('data').get('selected_token')
+    token_symbol = selected_token.get('symbol')
+    set_active_token(blockchain_address=account.blockchain_address, token_symbol=token_symbol)
+
+

apps/cic-ussd/cic_ussd/state_machine/logic/transaction.py

@@ -5,18 +5,17 @@ from typing import Tuple
 # third party imports
 import celery
 from phonenumbers.phonenumberutil import NumberParseException
+from sqlalchemy.orm.session import Session
 
 # local imports
 from cic_ussd.account.balance import get_cached_available_balance
 from cic_ussd.account.chain import Chain
-from cic_ussd.account.tokens import get_default_token_symbol
+from cic_ussd.account.tokens import get_active_token_symbol, get_cached_token_data
 from cic_ussd.account.transaction import OutgoingTransaction
-from cic_ussd.db.enum import AccountStatus
 from cic_ussd.db.models.account import Account
-from cic_ussd.db.models.base import SessionBase
 from cic_ussd.phone_number import process_phone_number, E164Format
 from cic_ussd.session.ussd_session import save_session_data
-from sqlalchemy.orm.session import Session
+
 
 logg = logging.getLogger(__file__)
 
@@ -63,7 +62,11 @@ def has_sufficient_balance(state_machine_data: Tuple[str, dict, Account, Session
     :rtype: bool
     """
     user_input, ussd_session, account, session = state_machine_data
-    return int(user_input) <= get_cached_available_balance(account.blockchain_address)
+    identifier = bytes.fromhex(account.blockchain_address)
+    token_symbol = get_active_token_symbol(account.blockchain_address)
+    token_data = get_cached_token_data(account.blockchain_address, token_symbol)
+    decimals = token_data.get('decimals')
+    return int(user_input) <= get_cached_available_balance(decimals, [identifier, token_symbol.encode('utf-8')])
 
 
 def save_recipient_phone_to_session_data(state_machine_data: Tuple[str, dict, Account, Session]):
@@ -122,9 +125,10 @@ def process_transaction_request(state_machine_data: Tuple[str, dict, Account, Se
     to_address = recipient.blockchain_address
     from_address = account.blockchain_address
     amount = int(ussd_session.get('data').get('transaction_amount'))
-    token_symbol = get_default_token_symbol()
+    token_symbol = get_active_token_symbol(account.blockchain_address)
-
+    token_data = get_cached_token_data(account.blockchain_address, token_symbol)
+    decimals = token_data.get('decimals')
     outgoing_tx_processor = OutgoingTransaction(chain_str=chain_str,
                                                 from_address=from_address,
                                                 to_address=to_address)
-    outgoing_tx_processor.transfer(amount=amount, token_symbol=token_symbol)
+    outgoing_tx_processor.transfer(amount=amount, decimals=decimals, token_symbol=token_symbol)

apps/cic-ussd/cic_ussd/tasks/callback_handler.py

@@ -1,4 +1,5 @@
 # standard imports
+
 import json
 import logging
 from datetime import timedelta
@@ -7,7 +8,6 @@ from datetime import timedelta
 import celery
 from cic_types.condiments import MetadataPointer
 
-
 # local imports
 from cic_ussd.account.balance import get_balances, calculate_available_balance
 from cic_ussd.account.statement import generate
@@ -15,8 +15,15 @@ from cic_ussd.cache import Cache, cache_data, cache_data_key, get_cached_data
 from cic_ussd.account.chain import Chain
 from cic_ussd.db.models.base import SessionBase
 from cic_ussd.db.models.account import Account
+from cic_ussd.processor.util import wait_for_cache
 from cic_ussd.account.statement import filter_statement_transactions
 from cic_ussd.account.transaction import transaction_actors
+from cic_ussd.account.tokens import (collate_token_metadata,
+                                     get_cached_token_data,
+                                     get_default_token_symbol,
+                                     handle_token_symbol_list,
+                                     process_token_data,
+                                     set_active_token)
 from cic_ussd.error import AccountCreationDataNotFound
 from cic_ussd.tasks.base import CriticalSQLAlchemyTask
 
@@ -58,6 +65,9 @@ def account_creation_callback(self, result: str, url: str, status_code: int):
     session.close()
     logg.debug(f'recorded account with identifier: {result}')
 
+    token_symbol = get_default_token_symbol()
+    set_active_token(blockchain_address=result, token_symbol=token_symbol)
+
     queue = self.request.delivery_info.get('routing_key')
     s_phone_pointer = celery.signature(
         'cic_ussd.tasks.metadata.add_phone_pointer', [result, phone_number], queue=queue
@@ -88,8 +98,16 @@ def balances_callback(result: list, param: str, status_code: int):
         raise ValueError(f'Unexpected status code: {status_code}.')
 
     balances = result[0]
-    identifier = bytes.fromhex(param)
+    identifier = []
-    key = cache_data_key(identifier, MetadataPointer.BALANCES)
+    param = param.split(',')
+    for identity in param:
+        try:
+            i = bytes.fromhex(identity)
+            identifier.append(i)
+        except ValueError:
+            i = identity.encode('utf-8')
+            identifier.append(i)
+    key = cache_data_key(identifier=identifier, salt=MetadataPointer.BALANCES)
     cache_data(key, json.dumps(balances))
 
 
@@ -122,6 +140,38 @@ def statement_callback(self, result, param: str, status_code: int):
             generate(param, queue, sender_transaction)
 
 
+@celery_app.task
+def token_data_callback(result: dict, param: str, status_code: int):
+    """
+    :param result:
+    :type result:
+    :param param:
+    :type param:
+    :param status_code:
+    :type status_code:
+    :return:
+    :rtype:
+    """
+
+    if status_code != 0:
+        raise ValueError(f'Unexpected status code: {status_code}.')
+
+    token = result[0]
+    token_symbol = token.get('symbol')
+    identifier = token_symbol.encode('utf-8')
+    token_meta_key = cache_data_key(identifier, MetadataPointer.TOKEN_META_SYMBOL)
+    token_info_key = cache_data_key(identifier, MetadataPointer.TOKEN_PROOF_SYMBOL)
+    token_meta = get_cached_data(token_meta_key)
+    token_meta = json.loads(token_meta)
+    token_info = get_cached_data(token_info_key)
+    token_info = json.loads(token_info)
+    token_data = collate_token_metadata(token_info=token_info, token_metadata=token_meta)
+    token_data = {**token_data, **token}
+    token_data_key = cache_data_key([bytes.fromhex(param), identifier], MetadataPointer.TOKEN_DATA)
+    cache_data(token_data_key, json.dumps(token_data))
+    handle_token_symbol_list(blockchain_address=param, token_symbol=token_symbol)
+
+
 @celery_app.task(bind=True)
 def transaction_balances_callback(self, result: list, param: dict, status_code: int):
     """
@@ -138,10 +188,15 @@ def transaction_balances_callback(self, result: list, param: dict, status_code:
     """
     if status_code != 0:
         raise ValueError(f'Unexpected status code: {status_code}.')
-
     balances_data = result[0]
-    available_balance = calculate_available_balance(balances_data)
     transaction = param
+    token_symbol = transaction.get('token_symbol')
+    blockchain_address = transaction.get('blockchain_address')
+    identifier = [bytes.fromhex(blockchain_address), token_symbol.encode('utf-8')]
+    wait_for_cache(identifier, f'Cached token data for: {token_symbol}', MetadataPointer.TOKEN_DATA)
+    token_data = get_cached_token_data(blockchain_address, token_symbol)
+    decimals = token_data.get('decimals')
+    available_balance = calculate_available_balance(balances_data, decimals)
     transaction['available_balance'] = available_balance
     queue = self.request.delivery_info.get('routing_key')
 
@@ -175,6 +230,8 @@ def transaction_callback(result: dict, param: str, status_code: int):
     source_token_symbol = result.get('source_token_symbol')
     source_token_value = result.get('source_token_value')
 
+    process_token_data(blockchain_address=recipient_blockchain_address, token_symbol=destination_token_symbol)
+
     recipient_metadata = {
         "alt_blockchain_address": sender_blockchain_address,
         "blockchain_address": recipient_blockchain_address,

apps/cic-ussd/cic_ussd/tasks/notifications.py

@@ -6,6 +6,7 @@ import logging
 import celery
 
 # local imports
+from cic_ussd.account.tokens import get_cached_token_data
 from cic_ussd.account.transaction import from_wei
 from cic_ussd.notifications import Notifier
 from cic_ussd.phone_number import Support
@@ -25,11 +26,15 @@ def transaction(notification_data: dict):
     """
     role = notification_data.get('role')
     token_value = notification_data.get('token_value')
-    amount = token_value if token_value == 0 else from_wei(token_value)
+    token_symbol = notification_data.get('token_symbol')
+    blockchain_address = notification_data.get('blockchain_address')
+    token_data = get_cached_token_data(blockchain_address, token_symbol)
+    decimals = token_data.get('decimals')
+    amount = token_value if token_value == 0 else from_wei(decimals, token_value)
     balance = notification_data.get('available_balance')
     phone_number = notification_data.get('phone_number')
     preferred_language = notification_data.get('preferred_language')
-    token_symbol = notification_data.get('token_symbol')
+
     alt_metadata_id = notification_data.get('alt_metadata_id')
     metadata_id = notification_data.get('metadata_id')
     transaction_type = notification_data.get('transaction_type')

apps/cic-ussd/cic_ussd/tasks/processor.py

@@ -47,7 +47,8 @@ def cache_statement(parsed_transaction: dict, querying_party: str):
     statement_transactions = []
     if cached_statement:
         statement_transactions = json.loads(cached_statement)
-    statement_transactions.append(parsed_transaction)
+    if parsed_transaction not in statement_transactions:
+        statement_transactions.append(parsed_transaction)
     data = json.dumps(statement_transactions)
     identifier = bytes.fromhex(querying_party)
     key = cache_data_key(identifier, MetadataPointer.STATEMENT)
@@ -74,6 +75,14 @@ def parse_transaction(transaction: dict) -> dict:
     role = transaction.get('role')
     alt_blockchain_address = transaction.get('alt_blockchain_address')
     blockchain_address = transaction.get('blockchain_address')
+    identifier = bytes.fromhex(blockchain_address)
+    token_symbol = transaction.get('token_symbol')
+    if role == 'recipient':
+        key = cache_data_key(identifier=identifier, salt=MetadataPointer.TOKEN_LAST_RECEIVED)
+        cache_data(key, token_symbol)
+    if role == 'sender':
+        key = cache_data_key(identifier=identifier, salt=MetadataPointer.TOKEN_LAST_SENT)
+        cache_data(key, token_symbol)
     account = validate_transaction_account(blockchain_address, role, session)
     alt_account = session.query(Account).filter_by(blockchain_address=alt_blockchain_address).first()
     if alt_account:

apps/cic-ussd/requirements.txt

@@ -6,8 +6,8 @@ celery==4.4.7
 cffi==1.14.6
 cic-eth~=0.12.5a10
 cic-notify~=0.4.0a12
-cic-types~=0.2.1a2
+cic-types~=0.2.1a7
-confini~=0.5.1
+confini~=0.5.2
 phonenumbers==8.12.12
 psycopg2==2.8.6
 python-i18n[YAML]==0.3.9

apps/cic-ussd/states/exit_states.json

@@ -11,5 +11,7 @@
   "account_creation_prompt",
   "exit_successful_transaction",
   "exit_insufficient_balance",
+  "exit_invalid_guardian_addition",
+  "exit_invalid_guardian_removal",
   "complete"
 ]

apps/cic-ussd/states/pin_management_states.json

@@ -0,0 +1,16 @@
+[
+  "pin_management",
+  "reset_guarded_pin",
+  "reset_guarded_pin_authorization",
+  "exit_pin_reset_initiated_success",
+  "exit_not_authorized_for_pin_reset",
+  "guard_pin",
+  "guardian_list_pin_authorization",
+  "guardian_list",
+  "add_guardian",
+  "add_guardian_pin_authorization",
+  "exit_guardian_addition_success",
+  "remove_guardian",
+  "remove_guardian_pin_authorization",
+  "exit_guardian_removal_success"
+]

apps/cic-ussd/states/token_management_states.json

@@ -0,0 +1,7 @@
+[
+  "first_account_tokens_set",
+  "middle_account_tokens_set",
+  "last_account_tokens_set",
+  "token_selection_pin_authorization",
+  "exit_successful_token_selection"
+]

apps/cic-ussd/transitions/account_management_transitions.json

@@ -50,7 +50,7 @@
   {
     "trigger": "scan_data",
     "source": "account_management",
-    "dest": "enter_current_pin",
+    "dest": "pin_management",
     "conditions": "cic_ussd.state_machine.logic.menu.menu_five_selected"
   },
   {

apps/cic-ussd/transitions/account_statement_transitions.json

@@ -8,7 +8,7 @@
   {
     "trigger": "scan_data",
     "source": "first_transaction_set",
-    "dest": "start",
+    "dest": "exit",
     "conditions": "cic_ussd.state_machine.logic.menu.menu_zero_zero_selected"
   },
   {
@@ -31,7 +31,7 @@
   {
     "trigger": "scan_data",
     "source": "middle_transaction_set",
-    "dest": "start",
+    "dest": "exit",
     "conditions": "cic_ussd.state_machine.logic.menu.menu_zero_zero_selected"
   },
   {
@@ -48,7 +48,7 @@
   {
     "trigger": "scan_data",
     "source": "last_transaction_set",
-    "dest": "start",
+    "dest": "exit",
     "conditions": "cic_ussd.state_machine.logic.menu.menu_zero_zero_selected"
   },
   {

apps/cic-ussd/transitions/exit_transitions.json

@@ -58,5 +58,17 @@
     "source": "exit_successful_transaction",
     "dest": "exit",
     "conditions": "cic_ussd.state_machine.logic.menu.menu_ninety_nine_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "exit_successful_token_selection",
+    "dest": "start",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_zero_zero_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "exit_successful_token_selection",
+    "dest": "exit",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_ninety_nine_selected"
   }
 ]

apps/cic-ussd/transitions/pin_guard_transitions.json

@@ -0,0 +1,119 @@
+[
+  {
+    "trigger": "scan_data",
+    "source": "guard_pin",
+    "dest": "guardian_list_pin_authorization",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_one_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "guardian_list_pin_authorization",
+    "dest": "guardian_list",
+    "conditions": "cic_ussd.state_machine.logic.pin.is_authorized_pin"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "guardian_list_pin_authorization",
+    "dest": "exit_pin_blocked",
+    "conditions": "cic_ussd.state_machine.logic.pin.is_blocked_pin"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "guard_pin",
+    "dest": "add_guardian",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_two_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "add_guardian",
+    "dest": "add_guardian_pin_authorization",
+    "after": [
+      "cic_ussd.state_machine.logic.pin_guard.save_guardian_to_session_data",
+      "cic_ussd.state_machine.logic.pin_guard.retrieve_person_metadata"
+    ],
+    "conditions": "cic_ussd.state_machine.logic.pin_guard.is_valid_guardian_addition"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "add_guardian",
+    "dest": "exit_invalid_guardian_addition",
+    "unless": "cic_ussd.state_machine.logic.pin_guard.is_valid_guardian_addition"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "add_guardian_pin_authorization",
+    "dest": "exit_guardian_addition_success",
+    "after": "cic_ussd.state_machine.logic.pin_guard.add_pin_guardian",
+    "conditions": "cic_ussd.state_machine.logic.pin.is_authorized_pin"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "add_guardian_pin_authorization",
+    "dest": "exit_pin_blocked",
+    "conditions": "cic_ussd.state_machine.logic.pin.is_locked_account"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "guard_pin",
+    "dest": "remove_guardian",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_three_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "remove_guardian",
+    "dest": "remove_guardian_pin_authorization",
+    "after": [
+      "cic_ussd.state_machine.logic.pin_guard.save_guardian_to_session_data",
+      "cic_ussd.state_machine.logic.pin_guard.retrieve_person_metadata"
+    ],
+    "conditions": "cic_ussd.state_machine.logic.pin_guard.is_dialers_pin_guardian"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "remove_guardian",
+    "dest": "exit_invalid_guardian_removal",
+    "unless": "cic_ussd.state_machine.logic.pin_guard.is_dialers_pin_guardian"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "remove_guardian_pin_authorization",
+    "dest": "exit_guardian_removal_success",
+    "after": "cic_ussd.state_machine.logic.pin_guard.remove_pin_guardian",
+    "conditions": "cic_ussd.state_machine.logic.pin.is_authorized_pin"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "remove_guardian_pin_authorization",
+    "dest": "exit_pin_blocked",
+    "conditions": "cic_ussd.state_machine.logic.pin.is_locked_account"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "exit_guardian_removal_success",
+    "dest": "exit",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_nine_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "exit_invalid_guardian_addition",
+    "dest": "exit",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_nine_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "exit_invalid_guardian_removal",
+    "dest": "exit",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_nine_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "guardian_list",
+    "dest": "exit",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_nine_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "guard_pin",
+    "dest": "exit_invalid_menu_option"
+  }
+]

apps/cic-ussd/transitions/pin_management_transitions.json

@@ -0,0 +1,20 @@
+[
+  {
+    "trigger": "scan_data",
+    "source": "pin_management",
+    "dest": "enter_current_pin",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_one_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "pin_management",
+    "dest": "reset_guarded_pin",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_two_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "pin_management",
+    "dest": "guard_pin",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_three_selected"
+  }
+]

apps/cic-ussd/transitions/pin_reset_transitions.json

@@ -0,0 +1,43 @@
+[
+  {
+    "trigger": "scan_data",
+    "source": "reset_guarded_pin",
+    "dest": "reset_guarded_pin_authorization",
+    "after": [
+      "cic_ussd.state_machine.logic.pin_guard.save_guarded_account_session_data",
+      "cic_ussd.state_machine.logic.pin_guard.retrieve_person_metadata"
+    ],
+    "conditions": "cic_ussd.state_machine.logic.pin_guard.is_others_pin_guardian"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "reset_guarded_pin_authorization",
+    "dest": "exit_pin_reset_initiated_success",
+    "after": "cic_ussd.state_machine.logic.pin_guard.initiate_pin_reset",
+    "conditions": "cic_ussd.state_machine.logic.pin.is_authorized_pin"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "exit_pin_reset_initiated_success",
+    "dest": "exit",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_nine_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "reset_guarded_pin_authorization",
+    "dest": "exit_pin_blocked",
+    "conditions": "cic_ussd.state_machine.logic.pin.is_locked_account"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "reset_guarded_pin",
+    "dest": "exit_not_authorized_for_pin_reset",
+    "unless": "cic_ussd.state_machine.logic.pin_guard.is_others_pin_guardian"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "exit_not_authorized_for_pin_reset",
+    "dest": "exit",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_nine_selected"
+  }
+]

apps/cic-ussd/transitions/start_menu_transitions.json

@@ -8,15 +8,21 @@
   {
     "trigger": "scan_data",
     "source": "start",
-    "dest": "account_management",
+    "dest": "first_account_tokens_set",
     "conditions": "cic_ussd.state_machine.logic.menu.menu_two_selected"
   },
   {
     "trigger": "scan_data",
     "source": "start",
-    "dest": "help",
+    "dest": "account_management",
     "conditions": "cic_ussd.state_machine.logic.menu.menu_three_selected"
   },
+  {
+    "trigger": "scan_data",
+    "source": "start",
+    "dest": "help",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_four_selected"
+  },
   {
     "trigger": "scan_data",
     "source": "start",

apps/cic-ussd/transitions/token_management_transitions.json

@@ -0,0 +1,93 @@
+[
+  {
+    "trigger": "scan_data",
+    "source": "first_account_tokens_set",
+    "dest": "middle_account_tokens_set",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_eleven_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "first_account_tokens_set",
+    "dest": "exit",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_zero_zero_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "first_account_tokens_set",
+    "dest": "token_selection_pin_authorization",
+    "conditions": "cic_ussd.state_machine.logic.tokens.is_valid_token_selection",
+    "after": "cic_ussd.state_machine.logic.tokens.process_token_selection"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "first_account_tokens_set",
+    "dest": "exit_invalid_menu_option"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "middle_account_tokens_set",
+    "dest": "last_account_tokens_set",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_eleven_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "middle_account_tokens_set",
+    "dest": "first_account_tokens_set",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_twenty_two_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "middle_account_tokens_set",
+    "dest": "exit",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_zero_zero_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "middle_account_tokens_set",
+    "dest": "token_selection_pin_authorization",
+    "conditions": "cic_ussd.state_machine.logic.tokens.is_valid_token_selection",
+    "after": "cic_ussd.state_machine.logic.tokens.process_token_selection"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "middle_account_tokens_set",
+    "dest": "exit_invalid_menu_option"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "last_account_tokens_set",
+    "dest": "middle_account_tokens_set",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_twenty_two_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "last_account_tokens_set",
+    "dest": "exit",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_zero_zero_selected"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "last_account_tokens_set",
+    "dest": "token_selection_pin_authorization",
+    "conditions": "cic_ussd.state_machine.logic.tokens.is_valid_token_selection",
+    "after": "cic_ussd.state_machine.logic.tokens.process_token_selection"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "last_account_tokens_set",
+    "dest": "exit_invalid_menu_option"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "token_selection_pin_authorization",
+    "dest": "exit_successful_token_selection",
+    "conditions": "cic_ussd.state_machine.logic.pin.is_authorized_pin",
+    "after": "cic_ussd.state_machine.logic.tokens.set_selected_active_token"
+  },
+  {
+    "trigger": "scan_data",
+    "source": "token_selection_pin_authorization",
+    "dest": "exit",
+    "conditions": "cic_ussd.state_machine.logic.menu.menu_zero_zero_selected"
+  }
+]

apps/cic-ussd/var/lib/locale/helpers.en.yml

@@ -9,6 +9,8 @@ en:
     Not provided
   no_transaction_history: |-
     No transaction history
+  no_tokens_list: |-
+    No tokens to list
   other: |-
     Other
   received: |-
@@ -16,4 +18,19 @@ en:
   sent: |-
     Sent
   to: |-
-    To
+    To
+  guardians_list_header: |-
+    Walinzi uliowaongeza ni:
+  no_guardians_list: |-
+    No guardians set
+  error:
+    no_phone_number_provided: |-
+      No phone number was provided.
+    no_matching_account: |-
+      The number provided is not registered.
+    is_initiator: |-
+      Phone number cannot be your own.
+    is_existent_guardian: |-
+      This phone number is is already added as a guardian.
+    is_not_existent_guardian: |-
+      Phone number not set as PIN reset guardian.

apps/cic-ussd/var/lib/locale/helpers.sw.yml

@@ -9,6 +9,8 @@ sw:
     Haijawekwa
   no_transaction_history: |-
     Hamna ripoti ya matumizi
+  no_tokens_list: |-
+    Hamna sarafu nyingine
   other: |-
     Nyingine
   received: |-
@@ -16,4 +18,19 @@ sw:
   sent: |-
     Ulituma
   to: |-
-    Kwa
+    Kwa
+  guardians_list_header: |-
+    Your set guardians are:
+  no_guardians_list: |-
+    Hamna walinzi walioongezwa
+  error:
+    no_phone_number_provided: |-
+      Namabari ya simu haijawekwa.
+    no_matching_account: |-
+      Nambari uliyoweka haijasajiliwa.
+    is_initiator: |-
+      Nambari yafaa kuwa tofauti na yako.
+    is_existent_guardian: |-
+      Namabari hii tayari imeongezwa kama mlinzi wa nambari ya siri.
+    is_not_existent_guardian: |-
+      Nambari hii haijaongezwa kama mlinzi wa nambari ya siri.

apps/cic-ussd/var/lib/locale/ussd.en.yml

@@ -33,21 +33,44 @@ en:
     start: |-
       CON Balance %{account_balance} %{account_token_name}
       1. Send
-      2. My Account
+      2. My Sarafu
-      3. Help
+      3. My Account
+      4. Help
     enter_transaction_recipient: |-
       CON Enter phone number
       0. Back
     enter_transaction_amount: |-
       CON Enter amount
       0. Back
+    first_account_tokens_set: |-
+      CON Choose a number or symbol from your balances:
+      %{first_account_tokens_set}
+      11. Next
+      00. Exit
+    middle_account_tokens_set: |-
+      CON Choose a number or symbol from your balances:
+      %{middle_account_tokens_set}
+      11. Next
+      22. Previous
+      00. Exit
+    last_account_tokens_set: |-
+      CON Choose a number or symbol from your balances:
+      %{last_account_tokens_set}
+      22. Previous
+      00. Exit
+    token_selection_pin_authorization:
+      first: |-
+        CON %{token_data}
+        Enter pin to select:
+      retry: |-
+        %{retry_pin_entry}
     account_management: |-
       CON My account
       1. My profile
       2. Change language
       3. Check balance
       4. Check statement
-      5. Change PIN
+      5. PIN options
       0. Back
     metadata_management: |-
       CON My profile
@@ -74,6 +97,12 @@ en:
     retry_pin_entry: |-
       CON Incorrect PIN entered, please try again. You have %{remaining_attempts} attempts remaining.
       0. Back
+    pin_management: |-
+      CON Pin options
+      1. Change PIN
+      2. Reset PIN
+      3. Guard PIN
+      0. Back
     enter_current_pin:
       first: |-
         CON Enter current PIN.
@@ -86,6 +115,73 @@ en:
     new_pin_confirmation: |-
       CON Enter your new four number PIN again
       0. Back
+    reset_guarded_pin: |-
+      CON Enter phone number you are the guardian to reset their pin
+      0. Back
+    reset_guarded_pin_authorization:
+      first: |-
+        CON Enter YOUR pin to confirm %{guarded_account_information}'s reset
+        0. Back
+      retry: |-
+        %{retry_pin_entry}
+    exit_pin_reset_initiated_success: |-
+      CON Success: You have initiated a PIN reset for %{guarded_account_information}
+      0. Back
+      9. Exit
+    exit_not_authorized_for_pin_reset: |-
+      CON Failure: You are not authorized to reset that PIN. You must be a guardian!
+      0. Back
+      9. Exit
+    guard_pin: |-
+      CON Pin guard
+      1. View guardians
+      2. Add guardian
+      3. Remove guardian
+      0. Back
+    guardian_list_pin_authorization:
+      first: |-
+        CON Enter your pin to view set guardians
+        0. Back
+      retry: |-
+        %{retry_pin_entry}
+    guardian_list: |-
+      CON %{guardians_list}
+      0. Back
+      9. Exit
+    add_guardian: |-
+      CON Enter phone number to add as pin reset guardian
+      0. Back
+    add_guardian_pin_authorization:
+      first: |-
+        CON Enter your pin to add %{guardian_information} as your PIN reset guardian
+        0. Back
+      retry: |-
+        %{retry_pin_entry}
+    exit_guardian_addition_success: |-
+      CON Success: %{guardian_information} can now reset your PIN
+      0. Back
+      9. Exit
+    exit_invalid_guardian_addition: |-
+      CON %{error_exit}
+      0. Back
+      9. Exit
+    remove_guardian: |-
+      CON Enter phone number to revoke guardianship:
+      0. Back
+    remove_guardian_pin_authorization:
+      first: |-
+        CON Enter your pin to remove %{guardian_information} as your PIN reset guardian
+        0. Back
+      retry: |-
+        %{retry_pin_entry}
+    exit_guardian_removal_success: |-
+      CON Success: %{guardian_information} PIN reset guardianship is revoked
+      0. Back
+      9. Exit
+    exit_invalid_guardian_removal: |-
+      CON %{error_exit}
+      0. Back
+      9. Exit
     transaction_pin_authorization:
       first: |-
         CON %{recipient_information} will receive %{transaction_amount} %{token_symbol} from %{sender_information}.
@@ -203,6 +299,10 @@ en:
       Your Sarafu-Network balances is: %{token_balance}
       00. Back
       99. Exit
+    exit_successful_token_selection: |-
+      CON Success! %{token_symbol} is your active Sarafu.
+      00. Back
+      99. Exit
     invalid_service_code: |-
       Please dial %{valid_service_code} to access Sarafu Network
     help: |-

apps/cic-ussd/var/lib/locale/ussd.sw.yml

@@ -32,21 +32,44 @@ sw:
     start: |-
       CON Salio %{account_balance} %{account_token_name}
       1. Tuma
-      2. Akaunti yangu
+      2. Sarafu yangu
-      3. Usaidizi
+      3. Akaunti yangu
+      4. Usaidizi
     enter_transaction_recipient: |-
       CON Weka nambari ya simu
       0. Nyuma
     enter_transaction_amount: |-
       CON Weka kiwango
       0. Nyuma
+    first_account_tokens_set: |-
+      CON Chagua nambari au ishara kutoka kwa salio zako:
+      %{first_account_tokens_set}
+      11. Mbele
+      00. Ondoka
+    middle_account_tokens_set: |-
+      CON Chagua nambari au ishara kutoka kwa salio zako:
+      %{middle_account_tokens_set}
+      11. Mbele
+      22. Nyuma
+      00. Ondoka
+    last_account_tokens_set: |-
+      CON Chagua nambari au ishara kutoka kwa salio zako:
+      %{last_account_tokens_set}
+      22. Nyuma
+      00. Ondoka
+    token_selection_pin_authorization:
+      first: |-
+        CON %{token_data}
+        Weka nambari ya siri kuchagua:
+      retry: |-
+        %{retry_pin_entry}
     account_management: |-
       CON Akaunti yangu
       1. Wasifu wangu
       2. Chagua lugha utakayotumia
       3. Angalia salio
       4. Angalia taarifa ya matumizi
-      5. Badilisha nambari ya siri
+      5. Mipangilio ya nambari ya siri
       0. Nyuma
     metadata_management: |-
       CON Wasifu wangu
@@ -72,7 +95,13 @@ sw:
       0. Nyuma
     retry_pin_entry: |-
       CON Nambari uliyoweka si sahihi, jaribu tena. Una majaribio %{remaining_attempts} yaliyobaki.
-      0. Back
+      0. Nyuma
+    pin_management: |-
+      CON Pin options
+      1. Badilisha nambari yangu ya siri
+      2. Tuma ombili la kubadilisha nambari ya siri
+      3. Linda nambari ya siri
+      0. Nyuma
     enter_current_pin:
       first: |-
         CON Weka nambari ya siri.
@@ -85,6 +114,73 @@ sw:
     new_pin_confirmation: |-
       CON Weka nambari yako ya siri tena
       0. Nyuma
+    reset_guarded_pin: |-
+      CON Weka nambari ya simu ili kutuma ombi la kubalisha nambari ya siri.
+      0. Nyuma
+    reset_guarded_pin_authorization:
+      first: |-
+        CON Weka nambari YAKO ya siri ili kudhibitisha ombi la kubadilisha nambari ya siri ya %{guarded_account_information}.
+        0. Nyuma
+      retry: |-
+        %{retry_pin_entry}
+    exit_pin_reset_initiated_success: |-
+      CON Ombi lako la kubadili nambari ya siri ya %{guarded_account_information} limetumwa.
+      0. Nyuma
+      9. Ondoka
+    exit_not_authorized_for_pin_reset: |-
+      CON Huruhusiwi kutuma ombi la kubadilisha nambari ya siri.
+      0. Nyuma
+      9. Ondoka
+    guard_pin: |-
+      CON Linda nambari ya siri
+      1. Walinzi wa namabari ya siri
+      2. Ongeza mlinzi
+      3. Ondoa mlinzi
+      0. Nyuma
+    guardian_list_pin_authorization:
+      first: |-
+        CON Weka nambari yako ya siri ili kuona walinzi uliowaongeza
+        0. Nyuma
+      retry: |-
+        %{retry_pin_entry}
+    guardian_list: |-
+      CON %{guardians_list}
+      0. Nyuma
+      9. Ondoka
+    add_guardian: |-
+      CON Weka nambari ya simu ili kuongeza mlinzi
+      0. Nyuma
+    add_guardian_pin_authorization:
+      first: |-
+        CON Weka nambari YAKO ya siri ili kumwongeza %{guardian_information} kama mlinzi
+        0. Nyuma
+      retry: |-
+        %{retry_pin_entry}
+    exit_guardian_addition_success: |-
+      CON Ombi lako la kumwongeza: %{guardian_information} kama mlinzi limefanikiwa
+      0. Nyuma
+      9. Ondoka
+    exit_invalid_guardian_addition: |-
+      CON %{error_exit}
+      0. Nyuma
+      9. Ondoka
+    remove_guardian: |-
+      CON Weka nambari ya simu ili kuondoa mlinzi
+      0. Nyuma
+    remove_guardian_pin_authorization:
+      first: |-
+        CON Weka nambari YAKO ya siri ili kumwondoa %{guardian_information} kama mlinzi
+        0. Nyuma
+      retry: |-
+        %{retry_pin_entry}
+    exit_guardian_removal_success: |-
+      CON Ombi lako la kumwondoa: %{guardian_information} kama mlinzi limefanikiwa
+      0. Nyuma
+      9. Ondoka
+    exit_invalid_guardian_removal: |-
+      CON %{error_exit}
+      0. Nyuma
+      9. Ondoka
     transaction_pin_authorization:
       first: |-
         CON %{recipient_information} atapokea %{transaction_amount} %{token_symbol} kutoka kwa %{sender_information}.
@@ -202,6 +298,10 @@ sw:
       Akaunti yako ya Sarafu ina salio ifuatayo: %{token_balance}
       00. Nyuma
       99. Ondoka
+    exit_successful_token_selection: |-
+      CON Chaguo lako limekamilika, %{token_symbol} ni sarafu itakayotumika.
+      00. Nyuma
+      99. Ondoka
     invalid_service_code: |-
       Bonyeza %{valid_service_code} kutumia mtandao wa Sarafu
     help: |-

apps/contract-migration/3_deploy_token.sh

@@ -160,6 +160,9 @@ add_pending_tx_hash $r
 
 check_wait 3
 
+>&2 echo -e "\033[;96mWriting token metadata and proofs\033[;39m"
+python scripts/proofs.py --token-symbol $TOKEN_SYMBOL -e $TOKEN_ADDRESS --address-declarator $DEV_ADDRESS_DECLARATOR --signer-address $DEV_ETH_ACCOUNT_CONTRACT_DEPLOYER
+
 >&2 echo -e "\033[;96mWriting env_reset file\033[;39m"
 confini-dump --schema-dir ./config > ${DEV_DATA_DIR}/env_reset
 

apps/contract-migration/config/proofs/config.ini

@@ -0,0 +1,8 @@
+[pgp]
+export_dir = pgp/keys/
+keys_path = /tmp/cic/pgp/
+private_keys = privatekeys_meta.asc
+passphrase =
+
+[meta]
+url =

apps/contract-migration/docker/Dockerfile

@@ -11,9 +11,10 @@ RUN cat /etc/apt/sources.list.d/ethereum.list
 RUN apt-key adv --keyserver keyserver.ubuntu.com  --recv-keys 2A518C819BE37D2C2031944D1C52189C923F6CA9
 
 RUN mkdir -vp /usr/local/etc/cic
+# create secrets directory
+RUN mkdir -vp pgp/keys
 
-COPY config_template/ /usr/local/etc/cic/
+COPY requirements.txt .
-COPY requirements.txt . 
 
 #RUN apt-get install libffi-dev
 

apps/contract-migration/requirements.txt

@@ -6,6 +6,7 @@ eth-address-index==0.2.4
 cic-eth-registry==0.6.2a1
 erc20-faucet==0.3.2
 sarafu-faucet==0.0.7
-confini~=0.5.1
+confini~=0.5.2
 eth-token-index==0.2.4
 okota==0.2.5a1
+

apps/contract-migration/scripts/proofs.py

@@ -0,0 +1,127 @@
+# standard imports
+import hashlib
+import json
+import logging
+import os
+from typing import Union
+
+# external imports
+import cic_eth.cli
+from chainlib.chain import ChainSpec
+from chainlib.eth.connection import EthHTTPConnection
+from chainlib.eth.gas import OverrideGasOracle
+from chainlib.eth.nonce import RPCNonceOracle
+from cic_types.condiments import MetadataPointer
+from cic_types.ext.metadata import MetadataRequestsHandler, Signer
+from eth_address_declarator import Declarator
+from eth_address_declarator.declarator import AddressDeclarator
+from funga.eth.signer import EIP155Signer
+from funga.eth.keystore.dict import DictKeystore
+from hexathon import add_0x, strip_0x
+
+# local imports
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+
+script_dir = os.path.dirname(os.path.realpath(__file__))
+root_dir = os.path.join(script_dir, '..')
+base_config_dir = os.path.join(root_dir, 'config', 'proofs')
+token_data_dir = os.path.join(root_dir, 'token_data')
+
+arg_flags = cic_eth.cli.argflag_std_base
+arg_parser = cic_eth.cli.ArgumentParser(arg_flags)
+arg_parser.add_argument('--token-symbol', type=str, help='Token symbol whose metadata is being processed.')
+arg_parser.add_argument('--address-declarator', type=str, help='Address to address declarator contract')
+arg_parser.add_argument('--signer-address', type=str, help='Wallet keyfile address')
+arg_parser.add_argument('-e', type=str, help='Token address.')
+args = arg_parser.parse_args()
+config = cic_eth.cli.Config.from_args(args, arg_flags, 0, base_config_dir=base_config_dir)
+
+token_metadata = os.path.join(token_data_dir, 'meta.json')
+token_proof = os.path.join(token_data_dir, 'proof.json')
+
+
+def hash_proof(data: bytes) -> hex:
+    hash_object = hashlib.sha256()
+    hash_object.update(data)
+    return hash_object.digest().hex()
+
+
+def init_meta():
+    MetadataRequestsHandler.base_url = config.get('META_URL')
+    Signer.gpg_path = config.get('PGP_EXPORT_DIR')
+    Signer.key_file_path = f"{config.get('PGP_KEYS_PATH')}{config.get('PGP_PRIVATE_KEYS')}"
+    Signer.gpg_passphrase = config.get('PGP_PASSPHRASE')
+
+
+def wrapper(chain_spec: ChainSpec, rpc: EthHTTPConnection) -> Declarator:
+    gas_oracle = OverrideGasOracle(limit=AddressDeclarator.gas(), conn=rpc)
+    nonce_oracle = RPCNonceOracle(address=add_0x(args.signer_address.lower()), conn=rpc)
+    keystore = DictKeystore()
+    keystore.import_keystore_file(keystore_file=config.get('WALLET_KEY_FILE'))
+    signer = EIP155Signer(keystore)
+    return Declarator(chain_spec, gas_oracle=gas_oracle, nonce_oracle=nonce_oracle, signer=signer)
+
+
+def write_to_declarator(contract_address: hex, contract_wrapper: Declarator, proof: any, rpc: EthHTTPConnection,
+                        signer_address: hex, token_address: hex):
+    operation = contract_wrapper.add_declaration(contract_address, signer_address, token_address, proof)
+    results = rpc.do(operation[1])
+    rpc.wait(results)
+
+
+def write_metadata(writer: MetadataRequestsHandler, data: Union[dict, str]):
+    writer.create(data)
+
+
+if __name__ == '__main__':
+    init_meta()
+    chain_spec = ChainSpec.from_chain_str(config.get('CHAIN_SPEC'))
+
+    token_address_bytes = bytes.fromhex(strip_0x(args.e))
+    token_symbol_bytes = args.token_symbol.encode('utf-8')
+    token_meta_file = open(token_metadata, 'r')
+    token_proof_file = open(token_proof, 'r')
+    token_meta_data = json.load(token_meta_file)
+    token_proof_data = json.load(token_proof_file)
+    token_meta_file.close()
+    token_proof_file.close()
+
+    token_meta_writer = MetadataRequestsHandler(cic_type=MetadataPointer.TOKEN_META, identifier=token_address_bytes)
+    write_metadata(token_meta_writer, token_meta_data)
+
+    token_meta_symbol_writer = MetadataRequestsHandler(cic_type=MetadataPointer.TOKEN_META_SYMBOL,
+                                                       identifier=token_symbol_bytes)
+    write_metadata(token_meta_symbol_writer, token_meta_data)
+
+    token_proof_writer = MetadataRequestsHandler(cic_type=MetadataPointer.TOKEN_PROOF, identifier=token_address_bytes)
+    write_metadata(token_proof_writer, token_proof_data)
+
+    token_proof_symbol_writer = MetadataRequestsHandler(cic_type=MetadataPointer.TOKEN_PROOF_SYMBOL,
+                                                        identifier=token_symbol_bytes)
+    write_metadata(token_proof_symbol_writer, token_proof_data)
+
+    rpc = EthHTTPConnection(url=config.get('RPC_PROVIDER'), chain_spec=chain_spec)
+    contract_wrapper = wrapper(chain_spec, rpc)
+
+    hashed_token_proof = hash_proof(data=json.dumps(token_proof_data).encode('utf-8'))
+    identifier = bytes.fromhex(hashed_token_proof)
+    token_immutable_proof_writer = MetadataRequestsHandler(cic_type=MetadataPointer.NONE, identifier=identifier)
+    write_metadata(token_immutable_proof_writer, token_proof_data)
+    write_to_declarator(contract_address=args.address_declarator,
+                        contract_wrapper=contract_wrapper,
+                        proof=hashed_token_proof,
+                        rpc=rpc,
+                        signer_address=args.signer_address,
+                        token_address=args.e)
+
+    hashed_token_proof = hash_proof(args.token_symbol.encode('utf-8'))
+    identifier = bytes.fromhex(hashed_token_proof)
+    token_immutable_proof_writer = MetadataRequestsHandler(cic_type=MetadataPointer.NONE, identifier=identifier)
+    write_to_declarator(contract_address=args.address_declarator,
+                        contract_wrapper=contract_wrapper,
+                        proof=identifier,
+                        rpc=rpc,
+                        signer_address=args.signer_address,
+                        token_address=args.e)

apps/contract-migration/token_data/meta.json

@@ -0,0 +1,6 @@
+{
+	"contact": {"phone":  "+254757628885", "email":  "info@grassrootseconomics.org"},
+	"country_code": "KE",
+	"location": "Kilifi",
+	"name": "GRASSROOTS ECONOMICS"
+}

apps/contract-migration/token_data/proof.json

@@ -0,0 +1,7 @@
+{
+	"description": "Community support",
+	"issuer": "Grassroots Economics",
+	"namespace": "ge",
+	"proofs": [],
+	"version": 0
+}

docker-compose.yml

@@ -6,10 +6,9 @@ volumes:
   bloxberg-data: {}
   contract-config: {} 
 
-
 services:
   evm:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/bloxberg-node:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/bloxberg-node:${TAG:-latest}
     build:
       context: apps/bloxbergValidatorSetup
     restart: unless-stopped
@@ -34,14 +33,14 @@ services:
       - postgres-db:/var/lib/postgresql/data
 
   redis:
-    image: ${DEV_DOCKER_REGISTRY:-docker.io}/redis:6.0.9-alpine
+    image: ${IMAGE_BASE_URL:-docker.io}/redis:6.0.9-alpine
     ports:
       - ${DEV_REDIS_PORT:-63379}:6379
     command: "--loglevel verbose"
 
     
   bootstrap:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/contract-migration:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/contract-migration:${TAG:-latest}
     build:
       context: apps/contract-migration
       dockerfile: docker/Dockerfile
@@ -78,19 +77,23 @@ services:
       REDIS_PORT_CALLBACK: ${REDIS_PORT_CALLBACK:-6379}
       FAUCET_AMOUNT: ${FAUCET_AMOUNT:-0}
       WALLET_KEY_FILE: ${WALLET_KEY_FILE:-/root/keystore/UTC--2021-01-08T17-18-44.521011372Z--eb3907ecad74a0013c259d5874ae7f22dcbcc95c}
+      PGP_PASSPHRASE: merman
+      META_URL: http://meta:8000
     command: ["./run_job.sh"]
     depends_on:
       - evm
       - postgres
       - redis
+      - cic-meta-server
       - cic-eth-tasker
     volumes:
       - contract-config:/tmp/cic/config
+      - ./apps/contract-migration/testdata/pgp/:/tmp/cic/pgp
 
 
 
   cic-signer:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/funga-eth:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/funga-eth:${TAG:-latest}
     build: 
       context: apps/cic-signer
       dockerfile: Dockerfile
@@ -120,7 +123,7 @@ services:
 
   # queue handling for outgoing transactions and incoming transactions
   cic-eth-tasker:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/cic-eth:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/cic-eth:${TAG:-latest}
     build: 
       context: apps/cic-eth
       dockerfile: docker/Dockerfile
@@ -171,7 +174,7 @@ services:
 
 
   cic-eth-tracker:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/cic-eth:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/cic-eth:${TAG:-latest}
     build: 
       context: apps/cic-eth
       dockerfile: docker/Dockerfile
@@ -219,7 +222,7 @@ services:
 
 
   cic-eth-dispatcher:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/cic-eth:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/cic-eth:${TAG:-latest}
     build: 
       context: apps/cic-eth
       dockerfile: docker/Dockerfile
@@ -263,7 +266,7 @@ services:
 
 
   cic-eth-retrier:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/cic-eth:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/cic-eth:${TAG:-latest}
     build: 
       context: apps/cic-eth
       dockerfile: docker/Dockerfile
@@ -310,7 +313,7 @@ services:
 
     
   cic-cache-tracker:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/cic-cache:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/cic-cache:${TAG:-latest}
     build: 
       context: apps/cic-cache
       dockerfile: docker/Dockerfile
@@ -358,7 +361,7 @@ services:
 
 
   cic-cache-tasker:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/cic-cache:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/cic-cache:${TAG:-latest}
     build: 
       context: apps/cic-cache
       dockerfile: docker/Dockerfile
@@ -406,7 +409,7 @@ services:
 
   
   cic-cache-server:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/cic-cache:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/cic-cache:${TAG:-latest}
     build: 
       context: apps/cic-cache
       dockerfile: docker/Dockerfile
@@ -450,7 +453,7 @@ services:
 
   # metadata replacement server for swarm
   cic-meta-server:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/cic-meta:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/cic-meta:${TAG:-latest}
     hostname: meta
     build:
       context: apps/cic-meta
@@ -488,7 +491,7 @@ services:
 
 
   cic-user-tasker:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/cic-user:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/cic-user:${TAG:-latest}
     build:
       context: apps/cic-ussd
       dockerfile: docker/Dockerfile
@@ -507,6 +510,7 @@ services:
       DATABASE_DRIVER: ${DATABASE_DRIVER:-psycopg2}
       DATABASE_DEBUG: ${DATABASE_DEBUG:-0}
       DATABASE_POOL_SIZE: 0
+      APP_PASSWORD_PEPPER: ${APP_PASSWORD_PEPPER:-QYbzKff6NhiQzY3ygl2BkiKOpER8RE/Upqs/5aZWW+I=}
       CELERY_BROKER_URL: ${CELERY_BROKER_URL:-redis://redis}
       CELERY_RESULT_URL: ${CELERY_BROKER_URL:-redis://redis}
       CHAIN_SPEC: ${CHAIN_SPEC:-evm:byzantium:8996:bloxberg}
@@ -527,7 +531,7 @@ services:
 
 
   cic-user-server:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/cic-user:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/cic-user:${TAG:-latest}
     build:
       context: apps/cic-ussd
       dockerfile: docker/Dockerfile
@@ -546,6 +550,7 @@ services:
       DATABASE_DRIVER: ${DATABASE_DRIVER:-psycopg2}
       DATABASE_DEBUG: ${DATABASE_DEBUG:-0}
       DATABASE_POOL_SIZE: 0
+      SERVER_PORT: 9500
     restart: on-failure 
     ports:
       - ${DEV_CIC_USER_SERVER_PORT:-63415}:9500
@@ -556,7 +561,7 @@ services:
 
 
   cic-user-ussd-server:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/cic-user:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/cic-user:${TAG:-latest}
     build:
       context: apps/cic-ussd
       dockerfile: docker/Dockerfile
@@ -575,11 +580,13 @@ services:
       DATABASE_DRIVER: ${DATABASE_DRIVER:-psycopg2}
       DATABASE_DEBUG: ${DATABASE_DEBUG:-0}
       DATABASE_POOL_SIZE: 0
+      APP_PASSWORD_PEPPER: ${APP_PASSWORD_PEPPER:-QYbzKff6NhiQzY3ygl2BkiKOpER8RE/Upqs/5aZWW+I=}
       CHAIN_SPEC: ${CHAIN_SPEC:-evm:byzantium:8996:bloxberg}
       CELERY_BROKER_URL: ${CELERY_BROKER_URL:-redis://redis}
       CELERY_RESULT_URL: ${CELERY_RESULT_URL:-redis://redis}
       REDIS_PORT: 6379
       REDIS_HOST: redis
+      SERVER_PORT: 9000
     restart: on-failure
     depends_on:
       - postgres
@@ -587,14 +594,14 @@ services:
       - cic-eth-tasker
       - cic-cache-tasker
     ports:
-      - ${DEV_CIC_USER_USSD_SERVER_PORT:-63315}:9500
+      - ${DEV_CIC_USER_USSD_SERVER_PORT:-63315}:9000
     volumes:
       - ./apps/contract-migration/testdata/pgp/:/usr/src/secrets/
     command: "/root/start_cic_user_ussd_server.sh -vv"
 
 
   cic-notify-tasker:
-    image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/cic-notify:${TAG:-latest}
+    image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/cic-notify:${TAG:-latest}
     build:
       context: apps/cic-notify
       dockerfile: docker/Dockerfile
@@ -625,7 +632,7 @@ services:
     command: "/root/start_tasker.sh -q cic-notify -vv"
 
   data-seeding:
-      image: ${DEV_DOCKER_REGISTRY:-registry.gitlab.com/grassrootseconomics}/data-seeding:${TAG:-latest}
+      image: ${IMAGE_BASE_URL:-registry.gitlab.com/grassrootseconomics/cic-internal-integration}/data-seeding:${TAG:-latest}
       build:
         context: apps/data-seeding
         dockerfile: docker/Dockerfile