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Add storage retrieval solution for http handler

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This commit is contained in:
lash 2024-09-06 01:28:51 +01:00
parent e6754a1e92
commit 350b040a59
Signed by: lash
GPG Key ID: 21D2E7BB88C2A746
4 changed files with 84 additions and 26 deletions
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26
cmd/http/main.go
View File

@ -17,8 +17,9 @@ import (
"git.defalsify.org/vise.git/persist"
"git.defalsify.org/vise.git/resource"
"git.defalsify.org/vise.git/logging"
"git.grassecon.net/urdt/ussd/internal/handlers/ussd"
httpserver "git.grassecon.net/urdt/ussd/http"
httpserver "git.grassecon.net/urdt/ussd/internal/http"
)
var (
@ -77,7 +78,7 @@ func getHandler(appFlags *asm.FlagParser, rs *resource.DbResource, userdataStore
return ussdHandlers, nil
}
func getPersister(dbDir string, ctx context.Context) (*persist.Persister, error) {
func getStateStore(dbDir string, ctx context.Context) (db.Db, error) {
err := os.MkdirAll(dbDir, 0700)
if err != nil {
return nil, fmt.Errorf("state dir create exited with error: %v\n", err)
@ -85,8 +86,7 @@ func getPersister(dbDir string, ctx context.Context) (*persist.Persister, error)
store := gdbmdb.NewGdbmDb()
storeFile := path.Join(dbDir, "state.gdbm")
store.Connect(ctx, storeFile)
pr := persist.NewPersister(store)
return pr, nil
return store, nil
}
func getUserdataDb(dbDir string, ctx context.Context) db.Db {
@ -160,7 +160,7 @@ func main() {
// os.Exit(1)
// }
store := getUserdataDb(dbDir, ctx)
userdataStore := getUserdataDb(dbDir, ctx)
if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
@ -171,21 +171,27 @@ func main() {
os.Exit(1)
}
hl, err := getHandler(flagParser, dbResource, store)
hl, err := getHandler(flagParser, dbResource, userdataStore)
if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
}
sh := httpserver.NewSessionHandler(cfg, rs, store, hl.Init)
stateStore, err := getStateStore(dbDir, ctx)
if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
}
sh := httpserver.NewSessionHandler(cfg, rs, userdataStore, stateStore, hl.Init)
s := &http.Server{
Addr: fmt.Sprintf("%s:%s", host, strconv.Itoa(port)),
Addr: fmt.Sprintf("%s:%s", host, strconv.Itoa(int(port))),
Handler: sh,
}
err = engine.Loop(ctx, en, os.Stdin, os.Stdout)
err = s.ListenAndServe()
if err != nil {
fmt.Fprintf(os.Stderr, "loop exited with error: %v\n", err)
fmt.Fprintf(os.Stderr, "Server error: %s", err)
os.Exit(1)
}
}

20
cmd/main.go
View File

@ -34,10 +34,11 @@ func getFlags(fp string, debug bool) (*asm.FlagParser, error) {
func getHandler(appFlags *asm.FlagParser, rs *resource.DbResource, pe *persist.Persister, userdataStore db.Db) (*ussd.Handlers, error) {
ussdHandlers, err := ussd.NewHandlers(appFlags, pe, userdataStore)
ussdHandlers, err := ussd.NewHandlers(appFlags, userdataStore)
if err != nil {
return nil, err
}
ussdHandlers = ussdHandlers.WithPersister(pe)
rs.AddLocalFunc("select_language", ussdHandlers.SetLanguage)
rs.AddLocalFunc("create_account", ussdHandlers.CreateAccount)
rs.AddLocalFunc("save_pin", ussdHandlers.SavePin)
@ -104,6 +105,11 @@ func getResource(resourceDir string, ctx context.Context) (resource.Resource, er
return rfs, nil
}
func getEngine(cfg engine.Config, rs resource.Resource, pr *persist.Persister) *engine.DefaultEngine {
en := engine.NewEngine(cfg, rs)
en = en.WithPersister(pr)
return en
}
func main() {
var dbDir string
@ -142,7 +148,7 @@ func main() {
os.Exit(1)
}
pr, err := getPersister(dbDir, ctx)
pe, err := getPersister(dbDir, ctx)
if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
@ -156,13 +162,17 @@ func main() {
dbResource, ok := rs.(*resource.DbResource)
if !ok {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
}
hl := getHandler(flagParser, dbResource, store)
hl = hl.WithPersister(pe)
hl, err := getHandler(flagParser, dbResource, pe, store)
if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
}
en := getEngine(cfg, rs, pr)
en := getEngine(cfg, rs, pe)
en = en.WithFirst(hl.Init)
if debug {
en = en.WithDebug(nil)

21
http/server.go → internal/http/server.go
View File

@ -4,7 +4,6 @@ import (
"fmt"
"io/ioutil"
"net/http"
"os"
"git.defalsify.org/vise.git/db"
"git.defalsify.org/vise.git/engine"
@ -37,14 +36,16 @@ type SessionHandler struct {
rp RequestParser
rs resource.Resource
first resource.EntryFunc
provider StorageProvider
}
func NewSessionHandler(cfg engine.Config, rs resource.Resource, userdataDb db.Db, first resource.EntryFunc) *SessionHandler {
func NewSessionHandler(cfg engine.Config, rs resource.Resource, stateDb db.Db, userdataDb db.Db, first resource.EntryFunc) *SessionHandler {
return &SessionHandler{
cfgTemplate: cfg,
rs: rs,
first: first,
rp: RequestParser{},
provider: NewSimpleStorageProvider(stateDb, userdataDb),
}
}
@ -76,7 +77,12 @@ func(f *SessionHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
cfg := f.cfgTemplate
cfg.SessionId = sessionId
en := getEngine(cfg, f.rs, f.pr)
storage, err := f.provider.Get(cfg.SessionId)
if err != nil {
f.writeError(w, 500, "Storage retrieval fail", err)
return
}
en := getEngine(cfg, f.rs, storage.Persister)
en = en.WithFirst(f.first)
if cfg.EngineDebug {
en = en.WithDebug(nil)
@ -87,17 +93,11 @@ func(f *SessionHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
} else {
r, err = en.Exec(ctx, input)
}
_, err = en.Init(ctx)
if err != nil {
fmt.Fprintf(os.Stderr, "engine init exited with error: %v\n", err)
os.Exit(1)
}
if err != nil {
f.writeError(w, 500, "Engine exec fail", err)
return
}
w.WriteHeader(200)
w.Header().Set("Content-Type", "text/plain")
_, err = en.WriteResult(ctx, w)
@ -111,7 +111,6 @@ func(f *SessionHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
return
}
_ = r
}
func getEngine(cfg engine.Config, rs resource.Resource, pr *persist.Persister) *engine.DefaultEngine {

43
internal/http/storage.go Normal file
View File

@ -0,0 +1,43 @@
package http
import (
"git.defalsify.org/vise.git/db"
"git.defalsify.org/vise.git/persist"
)
type Storage struct {
Persister *persist.Persister
UserdataDb db.Db
}
type StorageProvider interface {
Get(sessionId string) (Storage, error)
Put(sessionId string, storage Storage) error
Close() error
}
type SimpleStorageProvider struct {
Storage
}
func NewSimpleStorageProvider(stateStore db.Db, userdataStore db.Db) StorageProvider {
pe := persist.NewPersister(stateStore)
return &SimpleStorageProvider{
Storage: Storage{
Persister: pe,
UserdataDb: userdataStore,
},
}
}
func (*SimpleStorageProvider) Get(sessionId string) (Storage, error) {
return Storage{}, nil
}
func (*SimpleStorageProvider) Put(sessionId string, storage Storage) error {
return nil
}
func (*SimpleStorageProvider) Close() error {
return nil
}