From 9b90eaf240e8e94f937a787aca1c73fb31347a5f Mon Sep 17 00:00:00 2001
From: William Petit <wpetit@cadoles.com>
Date: Tue, 22 Dec 2020 15:00:42 +0100
Subject: [PATCH] Add Iroquois/Powow API mocking entrypoint

---
 .gitignore                                    |   3 +-
 README.md                                     |  41 +++-
 cmd/fake-sms/container.go                     |  11 +
 .../template/layouts/outbox.html.tmpl         |  12 +-
 cmd/fake-sms/template/layouts/sms.html.tmpl   |  86 ++-----
 internal/command/store_sms.go                 |   4 +
 internal/config/config.go                     |  33 ++-
 internal/model/sms.go                         |   1 +
 internal/route/mount.go                       |   4 +
 internal/route/powow.go                       | 229 ++++++++++++++++++
 internal/route/sms.go                         |  11 -
 misc/powow.http                               |  14 ++
 12 files changed, 358 insertions(+), 91 deletions(-)
 create mode 100644 internal/route/powow.go
 create mode 100644 misc/powow.http

diff --git a/.gitignore b/.gitignore
index 2a576f4..06cf7de 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@
 /vendor
 /bin
 /node_modules
-/.env
\ No newline at end of file
+/.env
+/.vscode
\ No newline at end of file
diff --git a/README.md b/README.md
index 91bc83f..c9ae0e2 100644
--- a/README.md
+++ b/README.md
@@ -29,13 +29,36 @@ Voici la structure du fichier par défaut:
 ```yaml
 # Configuration HTTP
 http:
-  address: :8080
+  address: :3000
   templateDir: template
   publicDir: public
-
 # Configuration du stockage
 data:
   path: fakesms.db
+
+# Confirguration du mock Powow
+# Voir https://powow4.iroquois.fr/
+powow:
+  # Clé d'API à utiliser par les clients Powow utilisant le mock
+  apiKey: powow
+
+  # Modèles de SMS transactionnels
+  # Voir https://powow4.iroquois.fr/user/docs/api/#create-transactional-sms
+  # et https://powow4.iroquois.fr/user/docs/api/#update-transactional-sms
+  #
+  # L'identifiant (SmsID) de chaque modèle est son index dans le tableau.
+  sms:
+  - name: Powow SMS
+    from: FakeSMS
+    # Modèle de contenu pour le SMS avec patrons d'insertion
+    # Voir https://powow4.iroquois.fr/user/docs/api/#send-transactional-sms, "About the CustomData parameter"
+    content: |
+      Bonjour %Subscriber:Firstname%,
+
+      Lorem ipsum dolor sit amet...
+    # Cet attribut n'est pas utilisé dans le cadre du mock
+    shortLink: false
+
 ```
 
 ### Variables d'environnement
@@ -50,6 +73,20 @@ Les valeurs des variables d'environnement surchargent les valeurs présentes dan
 |`FAKESMS_HTTP_TEMPLATEDIR`|`http.templateDir`|
 |`FAKESMS_HTTP_PUBLICDIR`|`http.publicDir`|
 
+## Mocks
+
+### Iroquois/Powow
+
+Un mock de l'API Powow est disponible via l'URL `http://<fake_sms_host>/api/v1/mock/powow`.
+
+Les commandes suivantes sont implémentées:
+
+|Commande|Documentation officiele|Notes|
+|--------|-----------------------|-----------|
+|`TransactionalSms.Send`|https://powow4.iroquois.fr/user/docs/api/#send-transactional-sms|La définition des modèles de SMS s'effectue via la configuration.|
+
+Un exemple d'appel à l'API est disponible dans le fichier [`misc/powow.http`](./misc/powow.http).
+
 ## Démarrer avec les sources
 
 ### Dépendances
diff --git a/cmd/fake-sms/container.go b/cmd/fake-sms/container.go
index 525e509..a6850a6 100644
--- a/cmd/fake-sms/container.go
+++ b/cmd/fake-sms/container.go
@@ -1,6 +1,9 @@
 package main
 
 import (
+	"encoding/json"
+
+	"github.com/pkg/errors"
 	"gitlab.com/wpetit/goweb/template/html"
 
 	"forge.cadoles.com/Cadoles/fake-sms/internal/command"
@@ -22,6 +25,14 @@ func getServiceContainer(conf *config.Config) (*service.Container, error) {
 	// Create and expose template service provider
 	ctn.Provide(template.ServiceName, html.ServiceProvider(
 		html.NewDirectoryLoader(conf.HTTP.TemplateDir),
+		html.WithHelper("toPrettyJSON", func(data interface{}) (string, error) {
+			json, err := json.MarshalIndent(data, "", "  ")
+			if err != nil {
+				return "", errors.WithStack(err)
+			}
+
+			return string(json), nil
+		}),
 	))
 
 	// Create and expose config service provider
diff --git a/cmd/fake-sms/template/layouts/outbox.html.tmpl b/cmd/fake-sms/template/layouts/outbox.html.tmpl
index 429c1c1..21fc14b 100644
--- a/cmd/fake-sms/template/layouts/outbox.html.tmpl
+++ b/cmd/fake-sms/template/layouts/outbox.html.tmpl
@@ -16,8 +16,9 @@
       <table class="outbox table is-fullwidth is-striped is-hoverable">
         <thead>
           <tr>
-            <th class="sms-to">Recipient</th>
-            <th class="sms-sentat">Date</th>
+            <th class="sms-from">From</th>
+            <th class="sms-recipient">Recipient</th>
+            <th class="sms-sentat">Sent At</th>
             <th class="sms-actions"></th>
           </tr>
         </thead>
@@ -26,10 +27,11 @@
             <tr data-controller="inbox-entry"
               data-action="click->outbox-entry#onClick"
               data-inbox-entry-link="./sms/{{ .ID }}">
+              <td class="sms-from">
+                <span class="is-size-7">{{ .From }}</span>
+              </td>
               <td class="sms-recipient">
-                {{range .Recipient}}
-                  <span class="tag">{{ .Recipient }}</span>
-                {{end}}
+                <span class="tag">{{ .Recipient }}</span>
               </td>
               <td class="sms-sentat">
                 <span class="is-size-7">{{ .SentAt.Format "02/01/2006 15:04:05"}}</span>
diff --git a/cmd/fake-sms/template/layouts/sms.html.tmpl b/cmd/fake-sms/template/layouts/sms.html.tmpl
index 43dfdb9..bd1aea9 100644
--- a/cmd/fake-sms/template/layouts/sms.html.tmpl
+++ b/cmd/fake-sms/template/layouts/sms.html.tmpl
@@ -1,8 +1,8 @@
-{{define "title"}}Email - FakeSMTP{{end}}
+{{define "title"}}SMS - FakeSMTP{{end}}
 {{define "header_buttons"}}
   <button class="button is-danger"
     data-controller="restful" 
-    data-restful-endpoint="./{{ .Email.ID }}"
+    data-restful-endpoint="./{{ .SMS.ID }}"
     data-restful-method="DELETE"
     data-restful-redirect="../">
     🗑️ Delete
@@ -16,40 +16,21 @@
         <div class="column">
           <div class="columns">
             <div class="column">
-              <h4 class="title is-size-4">Email</h4>
-              {{template "email_head" .}}
+              <h4 class="title is-size-4">SMS</h4>
+              {{template "sms_head" .}}
             </div>
-            {{if .Email.Attachments}}
-            <div class="column is-narrow">
-              <h4 class="title is-size-4">Attachments ({{len  .Email.Attachments}})</h4>
-              <ul>
-                {{ $email := .Email }}
-                {{range $i, $a := .Email.Attachments}}
-                <li><a href="{{ $email.ID }}/attachments/{{ $i }}" download="{{ $a.Name }}">{{ $a.Name }}</a></li>
-                {{end}}
-              </ul>
-            </div>
-            {{end}}
           </div>
           <div data-controller="tabs">
             <div class="tabs">
                 <ul>
-                  <li data-action="click->tabs#openTab" data-target="tabs.tab" data-tabs-name="html" {{if .Email.HTML}}class="is-active"{{end}}><a>HTML</a></li>
-                  <li data-action="click->tabs#openTab" data-target="tabs.tab" data-tabs-name="text" {{if not .Email.HTML}}class="is-active"{{end}}><a>Text</a></li>
-                  <li data-action="click->tabs#openTab" data-target="tabs.tab" data-tabs-name="headers"><a>Headers</a></li>
+                  <li data-action="click->tabs#openTab" data-target="tabs.tab" data-tabs-name="text" class="is-active"><a>Body</a></li>
+                  <li data-action="click->tabs#openTab" data-target="tabs.tab" data-tabs-name="metadata"><a>Metadata</a></li>
                 </ul>
             </div>
-            <iframe data-target="tabs.tabContent" data-tabs-for="html" 
-              frameborder="0"
-              data-controller="iframe"
-              data-action="load->iframe#onLoad"
-              style="width:100%;{{if not .Email.HTML}}display:none;{{end}}" 
-              src="{{ .Email.ID }}/html">
-            </iframe>
-            <div data-target="tabs.tabContent" data-tabs-for="text" style="{{if .Email.HTML}}display:none;{{end}}width:100%;overflow:hidden;">
-              <pre style="white-space:pre-line;">{{ .Email.Text }}</pre>
+            <div data-target="tabs.tabContent" data-tabs-for="text" style="width:100%;overflow:hidden;">
+              <pre style="white-space:pre-line;">{{ .SMS.Body }}</pre>
             </div>
-            <div data-target="tabs.tabContent" data-tabs-for="headers" style="display:none">
+            <div data-target="tabs.tabContent" data-tabs-for="metadata" style="display:none">
               <div class="table-container">
                 <table class="table is-striped is-hoverable is-fullwidth">
                   <thead>
@@ -59,13 +40,11 @@
                     <tr>
                   <thead>
                   <tbody>
-                      {{range $k, $v := .Email.Headers}}
+                      {{range $k, $v := .SMS.Metadata}}
                       <tr>
                         <td><code>{{ $k }}</code></td>
                         <td>
-                          {{range $v}}
-                            <code>{{ . }}</code>&nbsp;
-                          {{end}}
+                          <code>{{ toPrettyJSON . }}</code>&nbsp;
                         </td>
                       </tr>
                       {{end}}
@@ -81,61 +60,30 @@
   </div>
 </section>
 {{end}}
-{{define "email_head"}}
+{{define "sms_head"}}
 <div class="columns">
   <div class="column is-1">
     <h5 class="is-size-5">From</h5>
   </div>
   <div class="column">
-    {{template "email_adresses" .Email.From}}
+     <span class="tag is-large">{{.SMS.From}}</span>
   </div>
 </div>
 <div class="columns">
   <div class="column is-1">
-    <h5 class="is-size-5">To</h5>
+    <h5 class="is-size-5">Recipient</h5>
   </div>
   <div class="column">
-    {{template "email_adresses" .Email.To}}
+    <span class="tag is-large">{{.SMS.Recipient}}</span>
   </div>
 </div>
-{{if .Email.Cc }}
 <div class="columns">
   <div class="column is-1">
-    <h5 class="is-size-5">Cc</h5>
+    <h5 class="is-size-5">Sent At</h5>
   </div>
   <div class="column">
-    {{template "email_adresses" .Email.Cc}}
+    <p class="is-size-5">{{ .SMS.SentAt.Format "02/01/2006 15:04:05"}}</p>
   </div>
 </div>
 {{end}}
-{{if .Email.Cci }}
-<div class="columns">
-  <div class="column is-1">
-    <h5 class="is-size-5">Cci</h5>
-  </div>
-  <div class="column">
-    {{template "email_adresses" .Email.Cci}}
-  </div>
-</div>
-{{end}}
-<div class="columns">
-  <div class="column is-1">
-    <h5 class="is-size-5">Subject</h5>
-  </div>
-  <div class="column">
-    <p class="is-size-5">{{.Email.Subject}}</p>
-  </div>
-</div>
-{{end}}
-{{define "email_adresses"}}
-{{- range .}}
-  <span class="tag">
-  {{- if .Name -}}
-    {{.Name}} <{{.Address}}>
-  {{- else -}}
-    {{.Address}}
-  {{- end -}}
-  </span>
-{{- end -}}
-{{end}}
 {{template "base" .}}
\ No newline at end of file
diff --git a/internal/command/store_sms.go b/internal/command/store_sms.go
index d8b8317..abd5465 100644
--- a/internal/command/store_sms.go
+++ b/internal/command/store_sms.go
@@ -13,8 +13,10 @@ import (
 )
 
 type StoreSMSRequest struct {
+	From      string
 	Body      string
 	Recipient string
+	Metadata  map[string]interface{}
 }
 
 func HandleStoreSMS(ctx context.Context, cmd cqrs.Command) error {
@@ -39,6 +41,8 @@ func HandleStoreSMS(ctx context.Context, cmd cqrs.Command) error {
 
 	sms.Body = req.Body
 	sms.Recipient = req.Recipient
+	sms.Metadata = req.Metadata
+	sms.From = req.From
 
 	if err := db.Save(sms); err != nil {
 		return errors.Wrap(err, "could not save email")
diff --git a/internal/config/config.go b/internal/config/config.go
index c70080b..9f61720 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -11,8 +11,9 @@ import (
 )
 
 type Config struct {
-	HTTP HTTPConfig `yaml:"http"`
-	Data DataConfig `yaml:"data"`
+	HTTP  HTTPConfig  `yaml:"http"`
+	Data  DataConfig  `yaml:"data"`
+	Powow PowowConfig `ymal:"powow"`
 }
 
 type HTTPConfig struct {
@@ -25,6 +26,18 @@ type DataConfig struct {
 	Path string `yaml:"path" env:"FAKESMS_DATA_PATH"`
 }
 
+type PowowConfig struct {
+	APIKey string     `yaml:"apiKey" env:"FAKESMS_POWOW_API_KEY"`
+	SMS    []PowowSMS `yaml:"sms"`
+}
+
+type PowowSMS struct {
+	Name      string `yaml:"name"`
+	From      string `yaml:"from"`
+	Content   string `yaml:"content"`
+	ShortLink bool   `yaml:"shortLink"`
+}
+
 // NewFromFile retrieves the configuration from the given file
 func NewFromFile(filepath string) (*Config, error) {
 	config := NewDefault()
@@ -57,13 +70,27 @@ func NewDumpDefault() *Config {
 func NewDefault() *Config {
 	return &Config{
 		HTTP: HTTPConfig{
-			Address:     ":8080",
+			Address:     ":3000",
 			TemplateDir: "template",
 			PublicDir:   "public",
 		},
 		Data: DataConfig{
 			Path: "fakesms.db",
 		},
+		Powow: PowowConfig{
+			APIKey: "powow",
+			SMS: []PowowSMS{
+				{
+					Name:      "Powow SMS",
+					From:      "FakeSMS",
+					ShortLink: false,
+					Content: `Bonjour %Subscriber:Firstname%,
+
+Lorem ipsum dolor sit amet...
+`,
+				},
+			},
+		},
 	}
 }
 
diff --git a/internal/model/sms.go b/internal/model/sms.go
index fbfc55d..a92246f 100644
--- a/internal/model/sms.go
+++ b/internal/model/sms.go
@@ -6,6 +6,7 @@ type SMS struct {
 	ID        int `storm:"id,increment"`
 	Body      string
 	Seen      bool `storm:"index"`
+	From      string
 	Recipient string
 	SentAt    time.Time
 	Metadata  map[string]interface{}
diff --git a/internal/route/mount.go b/internal/route/mount.go
index 91d62a2..068ff6e 100644
--- a/internal/route/mount.go
+++ b/internal/route/mount.go
@@ -19,7 +19,11 @@ func Mount(r *chi.Mux, config *config.Config) error {
 		r.Route("/v1", func(r chi.Router) {
 			r.Get("/sms", browseAPIV1SMS)
 			r.Get("/sms/{id}", serveAPIV1SMS)
+
+			// Powow Mock
+			r.Post("/mock/powow", handlePowowEntrypoint)
 		})
+
 	})
 
 	notFoundHandler := r.NotFoundHandler()
diff --git a/internal/route/powow.go b/internal/route/powow.go
new file mode 100644
index 0000000..65ded0a
--- /dev/null
+++ b/internal/route/powow.go
@@ -0,0 +1,229 @@
+package route
+
+import (
+	"context"
+	"encoding/base64"
+	"encoding/json"
+	"io/ioutil"
+	"net/http"
+	"strings"
+
+	"forge.cadoles.com/Cadoles/fake-sms/internal/command"
+	"forge.cadoles.com/Cadoles/fake-sms/internal/config"
+	"github.com/pkg/errors"
+	"gitlab.com/wpetit/goweb/cqrs"
+	"gitlab.com/wpetit/goweb/logger"
+	"gitlab.com/wpetit/goweb/middleware/container"
+	"gitlab.com/wpetit/goweb/service"
+)
+
+type ErrorCode int
+
+const (
+	ErrorCodeInvalidCommand                  ErrorCode = 99997
+	ErrorCodeAuthenticationFailure           ErrorCode = 99998
+	ErrorCodeNotEnoughPrivileges             ErrorCode = 99999
+	ErrorCodeMissingSMSID                    ErrorCode = 1
+	ErrorCodeMissingMobilePhoneNumber        ErrorCode = 2
+	ErrorCodeInvalidSMSID                    ErrorCode = 3
+	ErrorCodeInvalidMobilePhoneNumber        ErrorCode = 4
+	ErrorCodeInvalidCustomData               ErrorCode = 5
+	ErrorCodeInvalidTimeToSend               ErrorCode = 6
+	ErrorCodeAccountSubscribersLimitExceeded ErrorCode = 7
+	ErrorCodeMobilePhoneNumberCannotBeSaved  ErrorCode = 7
+	ErrorCodeTransactionalIDCannotBeCreated  ErrorCode = 9
+	ErrorCodeSMSSentLimitExceeded            ErrorCode = 10
+)
+
+type Command string
+
+const (
+	CommandTransactionalSMSSend = "TransactionalSms.Send"
+)
+
+type PowowRequest struct {
+	APIKey         string `json:"ApiKey"`
+	Command        Command
+	ResponseFormat string
+	Payload        map[string]interface{}
+}
+
+type PowowResponse struct {
+	Success   bool
+	ErrorCode ErrorCode
+}
+
+func handlePowowEntrypoint(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+
+	ctn := container.Must(ctx)
+	conf := config.Must(ctn)
+
+	data, err := ioutil.ReadAll(r.Body)
+	if err != nil {
+		logger.Error(ctx, "could not read body", logger.E(errors.WithStack(err)))
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+
+		return
+	}
+	defer r.Body.Close()
+
+	pr := &PowowRequest{
+		Payload: make(map[string]interface{}),
+	}
+
+	if err := json.Unmarshal(data, pr); err != nil {
+		logger.Error(ctx, "could not parse request", logger.E(errors.WithStack(err)))
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+
+		return
+	}
+
+	if err := json.Unmarshal(data, &pr.Payload); err != nil {
+		logger.Error(ctx, "could not parse request payload", logger.E(errors.WithStack(err)))
+		http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+
+		return
+	}
+
+	// Authenticate user
+	if conf.Powow.APIKey != pr.APIKey {
+		res := &PowowResponse{
+			Success:   false,
+			ErrorCode: ErrorCodeAuthenticationFailure,
+		}
+
+		sendPowowResponse(w, res)
+
+		return
+	}
+
+	// Handle Powow command
+	switch pr.Command {
+	case CommandTransactionalSMSSend:
+		handleTransactionalSMSSend(ctx, ctn, w, pr)
+
+		return
+	default:
+		res := &PowowResponse{
+			Success:   false,
+			ErrorCode: ErrorCodeInvalidCommand,
+		}
+
+		sendPowowResponse(w, res)
+
+		return
+	}
+}
+
+// Mock https://powow4.iroquois.fr/user/docs/api/#send-transactional-sms
+func handleTransactionalSMSSend(ctx context.Context, ctn *service.Container, w http.ResponseWriter, req *PowowRequest) {
+	bus := cqrs.Must(ctn)
+	conf := config.Must(ctn)
+
+	rawSMSID, exists := req.Payload["SmsID"]
+	if !exists {
+		sendPowowResponse(w, &PowowResponse{
+			ErrorCode: ErrorCodeMissingSMSID,
+			Success:   false,
+		})
+
+		return
+	}
+
+	smsID, ok := rawSMSID.(float64)
+	if !ok {
+		sendPowowResponse(w, &PowowResponse{
+			ErrorCode: ErrorCodeInvalidSMSID,
+			Success:   false,
+		})
+
+		return
+	}
+
+	if smsID < 0 || int(smsID) > len(conf.Powow.SMS)-1 {
+		sendPowowResponse(w, &PowowResponse{
+			ErrorCode: ErrorCodeInvalidSMSID,
+			Success:   false,
+		})
+
+		return
+	}
+
+	customData := make(map[string]interface{})
+
+	rawCustomData, exists := req.Payload["CustomData"]
+	if exists {
+		customData, ok = rawCustomData.(map[string]interface{})
+		if !ok {
+			sendPowowResponse(w, &PowowResponse{
+				ErrorCode: ErrorCodeInvalidCustomData,
+				Success:   false,
+			})
+
+			return
+		}
+	}
+
+	sms := conf.Powow.SMS[int(smsID)]
+
+	body, err := createSMSBody(sms.Content, customData)
+	if err != nil {
+		panic(errors.Wrap(err, "could not generate sms body"))
+	}
+
+	req.Payload["_Template"] = sms
+
+	storeSMS := &command.StoreSMSRequest{
+		From:      sms.From,
+		Body:      body,
+		Recipient: req.Payload["MobilePhoneNumber"].(string),
+		Metadata:  req.Payload,
+	}
+
+	_, err = bus.Exec(ctx, storeSMS)
+	if err != nil {
+		panic(errors.Wrap(err, "could not store sms"))
+	}
+
+	res := &struct {
+		PowowResponse
+		TransactionalID int
+	}{
+		PowowResponse: PowowResponse{
+			Success:   true,
+			ErrorCode: 0,
+		},
+		TransactionalID: 0,
+	}
+
+	sendPowowResponse(w, res)
+}
+
+func createSMSBody(template string, customData map[string]interface{}) (string, error) {
+	content := template
+
+	for k, v := range customData {
+		decoded, err := base64.StdEncoding.DecodeString(v.(string))
+		if err != nil {
+			return "", errors.WithStack(err)
+		}
+
+		key := "%Subscriber:" + k + "%"
+
+		content = strings.ReplaceAll(content, key, string(decoded))
+	}
+
+	return content, nil
+}
+
+func sendPowowResponse(w http.ResponseWriter, res interface{}) {
+	w.Header().Add("Content-Type", "application/json")
+
+	encoder := json.NewEncoder(w)
+	encoder.SetIndent("", "  ")
+
+	if err := encoder.Encode(res); err != nil {
+		panic(errors.WithStack(err))
+	}
+}
diff --git a/internal/route/sms.go b/internal/route/sms.go
index e2f6927..4675973 100644
--- a/internal/route/sms.go
+++ b/internal/route/sms.go
@@ -102,14 +102,3 @@ func openSMS(ctx context.Context, emailID int) (*model.SMS, error) {
 
 	return openEmailData.SMS, nil
 }
-
-func getAttachmentIndex(r *http.Request) (int, error) {
-	rawAttachmendIndex := chi.URLParam(r, "attachmendIndex")
-
-	attachmendIndex, err := strconv.ParseInt(rawAttachmendIndex, 10, 32)
-	if err != nil {
-		return 0, err
-	}
-
-	return int(attachmendIndex), nil
-}
diff --git a/misc/powow.http b/misc/powow.http
new file mode 100644
index 0000000..cdd95b1
--- /dev/null
+++ b/misc/powow.http
@@ -0,0 +1,14 @@
+POST http://localhost:3000/api/v1/mock/powow
+Content-Type: application/json
+
+{
+    "APIKey": "powow",
+    "Command": "TransactionalSms.Send",
+    "ResponseFormat": "JSON",
+    "SmsID": 0,
+    "MobilePhoneNumber": "+33699999999",
+    "TimeToSend": "2017-01-01 10:00:00",
+    "CustomData": {
+        "Firstname": "Rm9v"
+    }
+}
\ No newline at end of file