Restructure (http) file provider flow: Separate download&get_info, download in provider, move XmppStreamModule into xmpp-vala

5 files changed, 116 insertions, 264 deletions

diff --git a/plugins/http-files/CMakeLists.txt b/plugins/http-files/CMakeLists.txt
index 340ff5b2..93ccbf67 100644
--- a/plugins/http-files/CMakeLists.txt
+++ b/plugins/http-files/CMakeLists.txt
@@ -13,7 +13,6 @@ SOURCES
     src/manager.vala
     src/plugin.vala
     src/register_plugin.vala
-    src/upload_stream_module.vala
 CUSTOM_VAPIS
     ${CMAKE_BINARY_DIR}/exports/xmpp-vala.vapi
     ${CMAKE_BINARY_DIR}/exports/dino.vapi
diff --git a/plugins/http-files/src/file_provider.vala b/plugins/http-files/src/file_provider.vala
index 6f4b19f4..7b52a7fb 100644
--- a/plugins/http-files/src/file_provider.vala
+++ b/plugins/http-files/src/file_provider.vala
@@ -10,12 +10,14 @@ public class FileProvider : Dino.FileProvider, Object {
     public string id { get { return "http"; } }
 
     private StreamInteractor stream_interactor;
+    private Dino.Database dino_db;
     private Regex url_regex;
 
     private Gee.List<string> ignore_once = new ArrayList<string>();
 
     public FileProvider(StreamInteractor stream_interactor, Dino.Database dino_db) {
         this.stream_interactor = stream_interactor;
+        this.dino_db = dino_db;
         this.url_regex = new Regex("""^(?i)\b((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))$""");
 
         stream_interactor.get_module(MessageProcessor.IDENTITY).received_pipeline.connect(new ReceivedMessageListener(this));
@@ -39,77 +41,91 @@ public class FileProvider : Dino.FileProvider, Object {
         }
 
         public override async bool run(Entities.Message message, Xmpp.MessageStanza stanza, Conversation conversation) {
-            if (!outer.url_regex.match(message.body)) return false;
-            Jid relevant_jid = stream_interactor.get_module(MucManager.IDENTITY).get_real_jid(message.from, conversation.account) ?? conversation.counterpart;
-            bool in_roster = stream_interactor.get_module(RosterManager.IDENTITY).get_roster_item(conversation.account, relevant_jid) != null;
-            if (message.direction == Message.DIRECTION_RECEIVED && !in_roster) return false;
-
-            string? oob_url = Xmpp.Xep.OutOfBandData.get_url_from_message(message.stanza);
-            if (oob_url != null && oob_url == message.body) {
-                yield outer.download_url(message, conversation);
+            if (outer.url_regex.match(message.body)) {
+                string? oob_url = Xmpp.Xep.OutOfBandData.get_url_from_message(message.stanza);
+                if (oob_url != null && oob_url == message.body) {
+                    outer.on_file_message(message, conversation);
+                }
             }
             return false;
         }
     }
 
-    private async bool download_url(Message message, Conversation conversation) {
-        bool success = false;
+    private async void on_file_message(Entities.Message message, Conversation conversation) {
+        FileTransfer file_transfer = new FileTransfer();
+        file_transfer.account = conversation.account;
+        file_transfer.counterpart = message.counterpart;
+        file_transfer.ourpart = message.ourpart;
+        file_transfer.encryption = Encryption.NONE;
+        file_transfer.time = message.time;
+        file_transfer.local_time = message.local_time;
+        file_transfer.direction = message.direction;
+        file_transfer.file_name = message.body.substring(message.body.last_index_of("/") + 1);
+        file_transfer.mime_type = null;
+        file_transfer.size = -1;
+        file_transfer.state = FileTransfer.State.NOT_STARTED;
+        file_transfer.provider = 0;
+        file_transfer.info = message.id.to_string();
+
+        if (stream_interactor.get_module(FileManager.IDENTITY).is_sender_trustworthy(file_transfer, conversation)) {
+            ContentItem? content_item = stream_interactor.get_module(ContentItemStore.IDENTITY).get_item(conversation, 1, message.id);
+            if (content_item != null) {
+                stream_interactor.get_module(ContentItemStore.IDENTITY).set_item_hide(content_item, true);
+            }
+            yield get_meta_info(file_transfer);
+            file_incoming(file_transfer, conversation);
+        }
+    }
+
+    private async void get_meta_info(FileTransfer file_transfer) {
+        string url_body = dino_db.message.select({dino_db.message.body}).with(dino_db.message.id, "=", int.parse(file_transfer.info))[dino_db.message.body];
         var session = new Soup.Session();
-        var head_message = new Soup.Message("HEAD", message.body);
+        var head_message = new Soup.Message("HEAD", url_body);
         if (head_message != null) {
-            SourceFunc callback = download_url.callback;
-            session.send_async.begin(head_message, null, (obj, res) => {
-                string? content_type = null, content_length = null;
-                print(message.body + ":\n");
-                head_message.response_headers.foreach((name, val) => {
-                    print(name + " " + val + "\n");
-                    if (name == "Content-Type") content_type = val;
-                    if (name == "Content-Length") content_length = val;
-                });
-                if (content_length != null && int.parse(content_length) < 5000000) {
-                    FileTransfer file_transfer = new FileTransfer();
-                    try {
-                        Soup.Request request = session.request(message.body);
-                        request.send_async.begin(null, (obj, res) => {
-                            try {
-                                file_transfer.input_stream = request.send_async.end(res);
-                            } catch (Error e) {
-                                Idle.add((owned)callback);
-                                return;
-                            }
-                            file_transfer.account = conversation.account;
-                            file_transfer.counterpart = message.counterpart;
-                            file_transfer.ourpart = message.ourpart;
-                            file_transfer.encryption = Encryption.NONE;
-                            file_transfer.time = message.time;
-                            file_transfer.local_time = message.local_time;
-                            file_transfer.direction = message.direction;
-                            file_transfer.file_name = message.body.substring(message.body.last_index_of("/") + 1);
-                            file_transfer.mime_type = content_type;
-                            file_transfer.size = int.parse(content_length);
-                            file_transfer.state = FileTransfer.State.NOT_STARTED;
-                            file_transfer.provider = 0;
-                            file_transfer.info = message.id.to_string();
-                            file_incoming(file_transfer, conversation);
-
-                            ContentItem? content_item = stream_interactor.get_module(ContentItemStore.IDENTITY).get_item(conversation, 1, message.id);
-                            if (content_item != null) {
-                                stream_interactor.get_module(ContentItemStore.IDENTITY).set_item_hide(content_item, true);
-                            }
-
-                            success = true;
-                            Idle.add((owned)callback);
-                        });
-                    } catch (Error e) {
-                        Idle.add((owned)callback);
-                    }
-                } else {
-                    Idle.add((owned)callback);
-                }
+            SourceFunc callback = get_meta_info.callback;
+            yield session.send_async(head_message, null);
+
+            string? content_type = null, content_length = null;
+            print(url_body + ":\n");
+            head_message.response_headers.foreach((name, val) => {
+                print(name + " " + val + "\n");
+                if (name == "Content-Type") content_type = val;
+                if (name == "Content-Length") content_length = val;
             });
-            yield;
+            file_transfer.mime_type = content_type;
+            file_transfer.size = int.parse(content_length);
+        }
+    }
+
+    public async void download(FileTransfer file_transfer, File file_) {
+        try {
+            File file = file_;
+            string url_body = dino_db.message.select({dino_db.message.body}).with(dino_db.message.id, "=", int.parse(file_transfer.info))[dino_db.message.body];
+            var session = new Soup.Session();
+            Soup.Request request = session.request(url_body);
+
+            file_transfer.input_stream = yield request.send_async(null);
+
+            foreach (IncommingFileProcessor processor in stream_interactor.get_module(FileManager.IDENTITY).incomming_processors) {
+                if (processor.can_process(file_transfer)) {
+                    processor.process(file_transfer);
+                }
+            }
+
+            if (file_transfer.encryption == Encryption.PGP || file.get_path().has_suffix(".pgp")) {
+                file = File.new_for_path(file.get_path().substring(0, file.get_path().length - 4));
+            }
+
+            OutputStream os = file.create(FileCreateFlags.REPLACE_DESTINATION);
+            os.splice(file_transfer.input_stream, 0);
+            os.close();
+            file_transfer.path = file.get_basename();
+            file_transfer.input_stream = file.read();
+
+            file_transfer.state = FileTransfer.State.COMPLETE;
+        } catch (Error e) {
+            file_transfer.state = FileTransfer.State.FAILED;
         }
-        return success;
     }
 }
 
diff --git a/plugins/http-files/src/manager.vala b/plugins/http-files/src/manager.vala
index 78697f9c..b5aa0d26 100644
--- a/plugins/http-files/src/manager.vala
+++ b/plugins/http-files/src/manager.vala
@@ -29,10 +29,46 @@ public class Manager : StreamInteractionModule, FileSender, Object {
         stream_interactor.get_module(MessageProcessor.IDENTITY).build_message_stanza.connect(check_add_oob);
     }
 
+    public delegate void OnUploadOk(XmppStream stream, string url_down);
+    public delegate void OnError(XmppStream stream, string error);
+    public void upload(XmppStream stream, FileTransfer file_transfer, owned OnUploadOk listener, owned OnError error_listener) {
+        uint8[] buf = new uint8[256];
+        Array<uint8> data = new Array<uint8>(false, true, 0);
+        size_t len = -1;
+        do {
+            try {
+                len = file_transfer.input_stream.read(buf);
+            } catch (IOError error) {
+                error_listener(stream, @"HTTP upload: IOError reading stream: $(error.message)");
+            }
+            data.append_vals(buf, (uint) len);
+        } while(len > 0);
+
+        stream_interactor.module_manager.get_module(file_transfer.account, Xmpp.Xep.HttpFileUpload.Module.IDENTITY).request_slot(stream, file_transfer.server_file_name, (int) data.length, file_transfer.mime_type,
+            (stream, url_down, url_up) => {
+                Soup.Message message = new Soup.Message("PUT", url_up);
+                message.set_request(file_transfer.mime_type, Soup.MemoryUse.COPY, data.data);
+                Soup.Session session = new Soup.Session();
+                session.send_async.begin(message, null, (obj, res) => {
+                    try {
+                        session.send_async.end(res);
+                        if (message.status_code >= 200 && message.status_code < 300) {
+                            listener(stream, url_down);
+                        } else {
+                            error_listener(stream, "HTTP status code " + message.status_code.to_string());
+                        }
+                    } catch (Error e) {
+                        error_listener(stream, e.message);
+                    }
+                });
+            },
+            (stream, error) => error_listener(stream, error));
+    }
+
     public void send_file(Conversation conversation, FileTransfer file_transfer) {
         Xmpp.XmppStream? stream = stream_interactor.get_stream(file_transfer.account);
         if (stream != null) {
-            stream_interactor.module_manager.get_module(file_transfer.account, UploadStreamModule.IDENTITY).upload(stream, file_transfer.input_stream, file_transfer.server_file_name, file_transfer.mime_type,
+            upload(stream, file_transfer,
                 (stream, url_down) => {
                     uploaded(file_transfer, url_down);
                     file_transfer.info = url_down;
@@ -71,7 +107,7 @@ public class Manager : StreamInteractionModule, FileSender, Object {
     }
 
     private void on_stream_negotiated(Account account, XmppStream stream) {
-        stream_interactor.module_manager.get_module(account, UploadStreamModule.IDENTITY).feature_available.connect((stream, max_file_size) => {
+        stream_interactor.module_manager.get_module(account, Xmpp.Xep.HttpFileUpload.Module.IDENTITY).feature_available.connect((stream, max_file_size) => {
             lock (max_file_sizes) {
                 max_file_sizes[account] = max_file_size;
             }
diff --git a/plugins/http-files/src/plugin.vala b/plugins/http-files/src/plugin.vala
index bd136f31..e2ce5ad9 100644
--- a/plugins/http-files/src/plugin.vala
+++ b/plugins/http-files/src/plugin.vala
@@ -14,10 +14,6 @@ public class Plugin : RootInterface, Object {
 
         file_provider = new FileProvider(app.stream_interactor, app.db);
 
-        app.stream_interactor.module_manager.initialize_account_modules.connect((account, list) => {
-            list.add(new UploadStreamModule());
-        });
-
         app.stream_interactor.get_module(FileManager.IDENTITY).add_provider(file_provider);
         app.stream_interactor.get_module(ContentItemStore.IDENTITY).add_filter(new FileMessageFilter(app.db));
     }
diff --git a/plugins/http-files/src/upload_stream_module.vala b/plugins/http-files/src/upload_stream_module.vala
deleted file mode 100644
index 934d4df5..00000000
--- a/plugins/http-files/src/upload_stream_module.vala
+++ /dev/null
@@ -1,195 +0,0 @@
-using Xmpp;
-using Xmpp;
-using Xmpp.Xep;
-
-namespace Dino.Plugins.HttpFiles {
-
-private const string NS_URI = "urn:xmpp:http:upload";
-private const string NS_URI_0 = "urn:xmpp:http:upload:0";
-
-public class UploadStreamModule : XmppStreamModule {
-    public static Xmpp.ModuleIdentity<UploadStreamModule> IDENTITY = new Xmpp.ModuleIdentity<UploadStreamModule>(NS_URI, "0363_http_file_upload");
-
-    public signal void feature_available(XmppStream stream, long max_file_size);
-    public signal void received_url(XmppStream stream, MessageStanza message);
-
-    public delegate void OnUploadOk(XmppStream stream, string url_down);
-    public delegate void OnError(XmppStream stream, string error);
-    public void upload(XmppStream stream, InputStream input_stream, string file_name, string file_content_type, owned OnUploadOk listener, owned OnError error_listener) {
-        uint8[] buf = new uint8[256];
-        Array<uint8> data = new Array<uint8>(false, true, 0);
-        size_t len = -1;
-        do {
-            try {
-                len = input_stream.read(buf);
-            } catch (IOError error) {
-                error_listener(stream, @"HTTP upload: IOError reading stream: $(error.message)");
-            }
-            data.append_vals(buf, (uint) len);
-        } while(len > 0);
-
-        request_slot(stream, file_name, (int) data.length, file_content_type,
-            (stream, url_down, url_up) => {
-                Soup.Message message = new Soup.Message("PUT", url_up);
-                message.set_request(file_content_type, Soup.MemoryUse.COPY, data.data);
-                Soup.Session session = new Soup.Session();
-                session.send_async.begin(message, null, (obj, res) => {
-                    try {
-                        session.send_async.end(res);
-                        if (message.status_code >= 200 && message.status_code < 300) {
-                            listener(stream, url_down);
-                        } else {
-                            error_listener(stream, "HTTP status code " + message.status_code.to_string());
-                        }
-                    } catch (Error e) {
-                        error_listener(stream, e.message);
-                    }
-                });
-            },
-            (stream, error) => error_listener(stream, error));
-    }
-
-    private delegate void OnSlotOk(XmppStream stream, string url_get, string url_put);
-    private void request_slot(XmppStream stream, string filename, int file_size, string? content_type, owned OnSlotOk listener, owned OnError error_listener) {
-        Flag? flag = stream.get_flag(Flag.IDENTITY);
-        if (flag == null) return;
-
-        StanzaNode? request_node = null;
-        switch (flag.ns_ver) {
-            case NS_URI_0:
-                request_node = new StanzaNode.build("request", NS_URI_0).add_self_xmlns();
-                request_node.put_attribute("filename", filename).put_attribute("size", file_size.to_string());
-                if (content_type != null) request_node.put_attribute("content-type", content_type);
-                break;
-            case NS_URI:
-                request_node = new StanzaNode.build("request", NS_URI).add_self_xmlns()
-                        .put_node(new StanzaNode.build("filename", NS_URI).put_node(new StanzaNode.text(filename)))
-                        .put_node(new StanzaNode.build("size", NS_URI).put_node(new StanzaNode.text(file_size.to_string())));
-                if (content_type != null) {
-                    request_node.put_node(new StanzaNode.build("content-type", NS_URI).put_node(new StanzaNode.text(content_type)));
-                }
-                break;
-        }
-        Iq.Stanza iq = new Iq.Stanza.get(request_node) { to=flag.file_store_jid };
-        stream.get_module(Iq.Module.IDENTITY).send_iq(stream, iq, (stream, iq) => {
-            if (iq.is_error()) {
-                error_listener(stream, "Error getting upload/download url");
-                return;
-            }
-            string? url_get = null, url_put = null;
-            // FIXME change back to switch on version in a while (prosody bug)
-            url_get = iq.stanza.get_deep_attribute(flag.ns_ver + ":slot", flag.ns_ver + ":get", flag.ns_ver + ":url");
-            url_put = iq.stanza.get_deep_attribute(flag.ns_ver + ":slot", flag.ns_ver + ":put", flag.ns_ver + ":url");
-            if (url_get == null && url_put == null) {
-                url_get = iq.stanza.get_deep_string_content(flag.ns_ver + ":slot", flag.ns_ver + ":get");
-                url_put = iq.stanza.get_deep_string_content(flag.ns_ver + ":slot", flag.ns_ver + ":put");
-            }
-            if (url_get == null || url_put == null) {
-                error_listener(stream, "Error getting upload/download url");
-            }
-            listener(stream, url_get, url_put);
-        });
-    }
-
-    public override void attach(XmppStream stream) {
-        stream.stream_negotiated.connect(query_availability);
-    }
-
-    public override void detach(XmppStream stream) {
-        stream.get_module(Bind.Module.IDENTITY).bound_to_resource.disconnect(query_availability);
-    }
-
-    public override string get_ns() { return NS_URI; }
-    public override string get_id() { return IDENTITY.id; }
-
-    private void query_availability(XmppStream stream) {
-        stream.get_module(ServiceDiscovery.Module.IDENTITY).request_info(stream, stream.remote_name, (stream, info_result) => {
-            bool available = check_ns_in_info(stream, stream.remote_name, info_result);
-            if (!available) {
-                stream.get_module(ServiceDiscovery.Module.IDENTITY).request_items(stream, stream.remote_name, (stream, items_result) => {
-                    foreach (Xep.ServiceDiscovery.Item item in items_result.items) {
-                        stream.get_module(ServiceDiscovery.Module.IDENTITY).request_info(stream, item.jid, (stream, info_result) => {
-                            check_ns_in_info(stream, item.jid, info_result);
-                        });
-                    }
-                });
-            }
-        });
-    }
-
-    private bool check_ns_in_info(XmppStream stream, Jid jid, Xep.ServiceDiscovery.InfoResult info_result) {
-        bool ver_available = false;
-        bool ver_0_available = false;
-        foreach (string feature in info_result.features) {
-            if (feature == NS_URI_0) {
-                ver_0_available = true;
-                break;
-            } else if (feature == NS_URI) {
-                ver_available = true;
-            }
-        }
-
-        if (ver_available || ver_0_available) {
-            long max_file_size = extract_max_file_size(info_result);
-            if (ver_0_available) {
-                stream.add_flag(new Flag(jid, NS_URI_0));
-            } else if (ver_available) {
-                stream.add_flag(new Flag(jid, NS_URI));
-            }
-
-            feature_available(stream, max_file_size);
-            return true;
-        }
-        return false;
-    }
-
-    private long extract_max_file_size(Xep.ServiceDiscovery.InfoResult info_result) {
-        string? max_file_size_str = null;
-        StanzaNode x_node = info_result.iq.stanza.get_deep_subnode("http://jabber.org/protocol/disco#info:query", "jabber:x:data:x");
-        Gee.List<StanzaNode> field_nodes = x_node.get_subnodes("field", "jabber:x:data");
-        foreach (StanzaNode node in field_nodes) {
-            string? var_attr = node.get_attribute("var");
-            if (var_attr == "max-file-size") {
-                StanzaNode value_node = node.get_subnode("value", "jabber:x:data");
-                max_file_size_str = value_node.get_string_content();
-                break;
-            }
-        }
-        if (max_file_size_str != null) return long.parse(max_file_size_str);
-        return -1;
-    }
-}
-
-public class ReceivedPipelineListener : StanzaListener<MessageStanza> {
-
-    private const string[] after_actions_const = {"EXTRACT_MESSAGE_2"};
-
-    public override string action_group { get { return "EXTRACT_MESSAGE_2"; } }
-    public override string[] after_actions { get { return after_actions_const; } }
-
-    public override async bool run(XmppStream stream, MessageStanza message) {
-        string? oob_url = OutOfBandData.get_url_from_message(message);
-        if (oob_url != null && oob_url == message.body) {
-            stream.get_module(UploadStreamModule.IDENTITY).received_url(stream, message);
-        }
-        return true;
-    }
-}
-
-public class Flag : XmppStreamFlag {
-    public static FlagIdentity<Flag> IDENTITY = new FlagIdentity<Flag>(NS_URI, "service_discovery");
-
-    public Jid file_store_jid;
-    public string ns_ver;
-    public int? max_file_size;
-
-    public Flag(Jid file_store_jid, string ns_ver) {
-        this.file_store_jid = file_store_jid;
-        this.ns_ver = ns_ver;
-    }
-
-    public override string get_ns() { return NS_URI; }
-    public override string get_id() { return IDENTITY.id; }
-}
-
-}