Work on Conversations UI

nomadnet/Conversation.py

@@ -17,9 +17,9 @@ class Conversation:
     def conversation_list(app):
         conversations = []
         for entry in os.listdir(app.conversationpath):
-            if os.path.isdir(app.conversationpath + "/" + entry):
+            if len(entry) == RNS.Identity.TRUNCATED_HASHLENGTH//8*2 and os.path.isdir(app.conversationpath + "/" + entry):
                 try:
-                    conversations.append(Conversation(entry, app))
+                    conversations.append(entry)
                 except Exception as e:
                     RNS.log("Error while loading conversation "+str(entry)+", skipping it. The contained exception was: "+str(e), RNS.LOG_ERROR)
 
@@ -29,12 +29,71 @@ class Conversation:
 
     def __init__(self, source_hash, app):
         self.source_hash        = source_hash
-        self.message_path       = app.conversationpath + "/" + source_hash
+        self.messages_path      = app.conversationpath + "/" + source_hash
         self.messages_load_time = None
         self.messages           = []
         self.source_known       = False
         self.source_trusted     = False
         self.source_blocked     = False
 
+        for filename in os.listdir(self.messages_path):
+            if len(filename) == RNS.Identity.HASHLENGTH//8*2:
+                message_path = self.messages_path + "/" + filename
+                self.messages.append(ConversationMessage(message_path))
+
     def __str__(self):
-        return self.source_hash
+        return self.source_hash
+
+class ConversationMessage:
+    def __init__(self, file_path):
+        self.file_path = file_path
+        self.loaded    = False
+        self.timestamp = None
+        self.lxm       = None
+
+    def load(self):
+        try:
+            self.lxm = LXMF.LXMessage.unpack_from_file(open(self.file_path, "rb"))
+            self.loaded = True
+            self.timestamp = self.lxm.timestamp
+        except Exception as e:
+            RNS.log("Error while loading LXMF message "+str(self.file_path)+" from disk. The contained exception was: "+str(e), RNS.LOG_ERROR)
+
+    def unload(self):
+        self.loaded = False
+        self.lxm    = None
+
+    def get_title(self):
+        if not self.loaded:
+            self.load()
+
+        return self.lxm.title_as_string()
+
+    def get_content(self):
+        if not self.loaded:
+            self.load()
+
+        return self.lxm.content_as_string()
+
+    def get_hash(self):
+        if not self.loaded:
+            self.load()
+
+        return self.lxm.hash
+
+    def signature_validated(self):
+        if not self.loaded:
+            self.load()
+
+        return self.lxm.signature_validated
+
+    def get_signature_description(self):
+        if self.signature_validated():
+            return "Signature Verified"
+        else:
+            if self.lxm.unverified_reason == LXMF.LXMessage.SOURCE_UNKNOWN:
+                return "Unknown Origin"
+            elif self.lxm.unverified_reason == LXMF.LXMessage.SIGNATURE_INVALID:
+                return "Invalid Signature"
+            else:
+                return "Unknown signature validation failure"