Add send cli tool, make token resolver pluggable

chaind/eth/cli/csv.py

@@ -0,0 +1,29 @@
+# standard imports
+import logging
+
+logg = logging.getLogger(__name__)
+
+
+class CSVProcessor:
+
+    def load(self, s):
+        contents = []
+        f = None
+        try:
+            f = open(s, 'r')
+        except FileNotFoundError:
+            return None
+
+        import csv # only import if needed
+        fr = csv.reader(f)
+
+        for r in fr:
+            contents.append(r)
+        f.close()
+        l = len(contents)
+        logg.info('successfully parsed source as csv, found {} records'.format(l))
+        return contents
+
+
+    def __str__(self):
+        return 'csv processor'

chaind/eth/cli/output.py

@@ -0,0 +1,34 @@
+# standard imports
+import logging
+import socket
+import enum
+
+logg = logging.getLogger(__name__)
+
+
+class OpMode(enum.Enum):
+    STDOUT = 'standard_output'
+    UNIX = 'unix_socket'
+
+class Outputter:
+
+    def __init__(self, mode):
+        self.out = getattr(self, 'do_' + mode.value)
+
+
+    def do(self, hx, *args, **kwargs):
+        return self.out(hx, *args, **kwargs)
+
+
+    def do_standard_output(self, hx, *args, **kwargs):
+        return hx
+
+
+    def do_unix_socket(self, hx, *args, **kwargs):
+        s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+        s.connect(kwargs['socket'])
+        s.send(hx.encode('utf-8'))
+        r = s.recv(64+4)
+        logg.debug('r {}'.format(r))
+        s.close()
+        return r[4:].decode('utf-8')