From 62dae5a0a2ad9cead08aa13810561e9436d5a40f Mon Sep 17 00:00:00 2001
From: Alex Auvolat <alex@adnab.me>
Date: Thu, 5 Mar 2020 16:59:37 +0100
Subject: `client_pickle` messenger configuration param

so that a serialized client object can be passed, bypassing the need to re-login at each restart
---
 connector/external/config.go |  5 ++++-
 external/messenger.py        | 49 +++++++++++++++++++++++++++-----------------
 2 files changed, 34 insertions(+), 20 deletions(-)

diff --git a/connector/external/config.go b/connector/external/config.go
index 03e1feb..9c8e123 100644
--- a/connector/external/config.go
+++ b/connector/external/config.go
@@ -45,7 +45,10 @@ func init() {
 				Name:        "password",
 				Description: "Password",
 				IsPassword:  true,
-				Required:    true,
+			},
+			&ConfigEntry{
+				Name:        "client_pickle",
+				Description: "Client pickle (alternative login method)",
 			},
 			&ConfigEntry{
 				Name:        "initial_backlog",
diff --git a/external/messenger.py b/external/messenger.py
index b5dd2d3..cd175e1 100755
--- a/external/messenger.py
+++ b/external/messenger.py
@@ -10,6 +10,9 @@ import time
 import traceback
 from urllib.parse import unquote as UrlUnquote
 
+import base64
+import getpass
+import zlib
 import hashlib
 
 import fbchat
@@ -210,27 +213,17 @@ class MessengerBridge:
             self.init_backlog_length = int(cmd["data"]["initial_backlog"])
             client_file = "/tmp/fbclient_" + hashlib.sha224(cmd["data"]["email"].encode("utf-8")).hexdigest()
 
-            try:
-                f = open(client_file, "rb")
-                self.client = pickle.load(f)
-                f.close()
-                sys.stderr.write("(python messenger) using previous client: {}\n".format(client_file))
-            except:
-                self.client = None
-
-            if self.client is None:
+            if "client_pickle" in cmd["data"]:
+                data = base64.b64decode(cmd["data"]["client_pickle"])
+                data = zlib.decompress(data)
+                self.client = pickle.loads(data)
+            else:
                 email, password = cmd["data"]["email"], cmd["data"]["password"]
                 self.client = MessengerBridgeClient(email=email, password=password, max_tries=1)
+                ## TODO: save client in new client_pickle config value
 
             if not self.client.isLoggedIn():
-                return {"_type": "rep_error", "error": "Unable to login (?)"}
-
-            try:
-                f = open(client_file, "wb")
-                pickle.dump(self.client, f)
-                f.close()
-            except:
-                pass
+                return {"_type": "rep_error", "error": "Unable to login (invalid pickle?)"}
 
             self.client.setBridge(self)
 
@@ -524,7 +517,25 @@ class MessengerBridge:
                 "data": {"name": new_title},
             })
 
+# ---- CLI ----
+
+def createClientPickle():
+    email = input("Email address of Facebook account: ")
+    password = getpass.getpass()
+    client = MessengerBridgeClient(email, password, max_tries=1)
+    if not client.isLoggedIn():
+        print("Could not log in (why???)")
+        return
+    print("")
+    data = pickle.dumps(client)
+    data = zlib.compress(data)
+    data = base64.b64encode(data).decode('ascii')
+    print(data)
+
 if __name__ == "__main__":
-    bridge = MessengerBridge()
-    bridge.run()
+    if "create_client_pickle" in sys.argv:
+        createClientPickle()
+    else:
+        bridge = MessengerBridge()
+        bridge.run()
 
-- 
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