basic sync wrapper

include/matrixclient.h

@@ -5,17 +5,34 @@
 #include <3ds.h>
 #include <jansson.h>
 
-class MatrixClient {
+namespace Matrix {
+
+class Store {
+public:
+	virtual void setSyncToken(std::string token) = 0;
+	virtual std::string getSyncToken() = 0;
+};
+
+class Client {
 private:
+public:
 	std::string hsUrl;
 	std::string token;
 	int requestId;
+	bool stopSyncing;
+	Store* store;
+	void startSync();
+	void processSync(json_t* sync);
+	json_t* doSync(std::string token);
+	json_t* doRequest(const char* method, std::string path, json_t* body = NULL);
 public:
-	MatrixClient(std::string homeserverUrl, std::string matrixToken);
+	Client(std::string homeserverUrl, std::string matrixToken, Store* clientStore = NULL);
+	std::string userId();
 	std::string sendTextMessage(std::string roomId, std::string text);
 	std::string sendMessage(std::string roomId, json_t* content);
 	std::string sendEvent(std::string roomId, std::string eventType, json_t* content);
-	json_t* doRequest(const char* method, std::string path, json_t* body = NULL);
 };
 
+}; // namespace Matrix
+
 #endif // _matrixclient_h_

include/templatelib.h

@@ -1,6 +0,0 @@
-#ifndef _templatelib_h_
-#define _templatelib_h_
-
-int myLibFunction();
-
-#endif // _templatelib_h_

source/matrixclient.cpp

@@ -6,22 +6,46 @@
 #include <malloc.h>
 #include <curl/curl.h>
 #include <string.h>
-
+#include "util.h"
+#include "memorystore.h"
 
 #include <sys/socket.h>
 
 #define SOC_ALIGN       0x1000
 #define SOC_BUFFERSIZE  0x100000
+#define SYNC_TIMEOUT 10000
+
+namespace Matrix {
 
 static u32 *SOC_buffer = NULL;
 
-MatrixClient::MatrixClient(std::string homeserverUrl, std::string matrixToken) {
+Client::Client(std::string homeserverUrl, std::string matrixToken, Store* clientStore) {
 	hsUrl = homeserverUrl;
 	token = matrixToken;
 	requestId = 0;
+	stopSyncing = false;
+	if (!clientStore) {
+		clientStore = new MemoryStore();
+	}
+	store = clientStore;
 }
 
-std::string MatrixClient::sendTextMessage(std::string roomId, std::string text) {
+std::string Client::userId() {
+	json_t* ret = doRequest("GET", "/_matrix/client/r0/account/whoami");
+	if (!ret) {
+		return "";
+	}
+	json_t* userId = json_object_get(ret, "user_id");
+	if (!userId) {
+		json_decref(ret);
+		return "";
+	}
+	const char* userIdStr = json_string_value(userId);
+	json_decref(ret);
+	return userIdStr;
+}
+
+std::string Client::sendTextMessage(std::string roomId, std::string text) {
 	json_t* request = json_object();
 	json_object_set_new(request, "msgtype", json_string("m.text"));
 	json_object_set_new(request, "body", json_string(text.c_str()));
@@ -30,13 +54,13 @@ std::string MatrixClient::sendTextMessage(std::string roomId, std::string text)
 	return eventId;
 }
 
-std::string MatrixClient::sendMessage(std::string roomId, json_t* content) {
+std::string Client::sendMessage(std::string roomId, json_t* content) {
 	return sendEvent(roomId, "m.room.message", content);
 }
 
-std::string MatrixClient::sendEvent(std::string roomId, std::string eventType, json_t* content) {
+std::string Client::sendEvent(std::string roomId, std::string eventType, json_t* content) {
 	std::string txid = std::to_string(time(NULL)) + "_REQ_" + std::to_string(requestId);
-	std::string path = "/_matrix/client/r0/rooms/" + roomId + "/send/" + eventType + "/" + txid;
+	std::string path = "/_matrix/client/r0/rooms/" + urlencode(roomId) + "/send/" + urlencode(eventType) + "/" + urlencode(txid);
 	json_t* ret = doRequest("PUT", path, content);
 	if (!ret) {
 		return "";
@@ -52,12 +76,95 @@ std::string MatrixClient::sendEvent(std::string roomId, std::string eventType, j
 	return eventIdStr;
 }
 
+void Client::processSync(json_t* sync) {
+	json_t* rooms = json_object_get(sync, "rooms");
+	if (!rooms) {
+		return; // nothing to do
+	}
+	json_t* leftRooms = json_object_get(rooms, "leave");
+	json_t* invitedRooms = json_object_get(rooms, "invite");
+	json_t* joinedRooms = json_object_get(rooms, "join");
+	
+	const char* roomId;
+	json_t* room;
+	
+	if (leftRooms) {
+		json_object_foreach(leftRooms, roomId, room) {
+			// rooms that we left
+		}
+	}
+	
+	if (invitedRooms) {
+		json_object_foreach(invitedRooms, roomId, room) {
+			// rooms that we were invited to
+		}
+	}
+	
+	if (joinedRooms) {
+		json_object_foreach(joinedRooms, roomId, room) {
+			// rooms that we are joined
+			printf(roomId);
+			printf(":\n");
+			json_t* timeline = json_object_get(room, "timeline");
+			if (!timeline) {
+				printf("no timeline\n");
+				continue;
+			}
+			json_t* events = json_object_get(timeline, "events");
+			if (!events) {
+				printf("no events\n");
+				continue;
+			}
+			size_t index;
+			json_t* event;
+			json_array_foreach(events, index, event) {
+				json_t* eventType = json_object_get(event, "type");
+				printf(json_string_value(eventType));
+				printf("\n");
+			}
+		}
+	}
+}
+
+void Client::startSync() {
+	std::string token = store->getSyncToken();
+	if (stopSyncing) {
+		return;
+	}
+	json_t* ret = doSync(token);
+	if (ret) {
+		// set the token for the next batch
+		json_t* token = json_object_get(ret, "next_batch");
+		if (token) {
+			printf("Found next batch\n");
+			store->setSyncToken(json_string_value(token));
+		} else {
+			printf("No next batch\n");
+			store->setSyncToken("");
+		}
+		processSync(ret);
+		json_decref(ret);
+	}
+}
+
+json_t* Client::doSync(std::string token) {
+	printf("Doing sync with token ");
+	printf(token.c_str());
+	printf("\n");
+	
+	std::string query = "?full_state=false&timeout=" + std::to_string(SYNC_TIMEOUT);
+	if (token != "") {
+		query += "&since=" + token;
+	}
+	return doRequest("GET", "/_matrix/client/r0/sync" + query);
+}
+
 size_t DoRequestWriteCallback(char *contents, size_t size, size_t nmemb, void *userp) {
 	((std::string*)userp)->append((char*)contents, size * nmemb);
 	return size * nmemb;
 }
 
-json_t* MatrixClient::doRequest(const char* method, std::string path, json_t* body) {
+json_t* Client::doRequest(const char* method, std::string path, json_t* body) {
 	std::string url = hsUrl + path;
 	requestId++;
 	
@@ -101,6 +208,7 @@ json_t* MatrixClient::doRequest(const char* method, std::string path, json_t* bo
 	curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, method);
 	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, DoRequestWriteCallback);
 	curl_easy_setopt(curl, CURLOPT_WRITEDATA, &readBuffer);
+	curl_easy_setopt(curl, CURLOPT_TIMEOUT, 30L);
 	
 //	curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
 //	curl_easy_setopt(curl, CURLOPT_STDERR, stdout);
@@ -111,8 +219,8 @@ json_t* MatrixClient::doRequest(const char* method, std::string path, json_t* bo
 	}
 	curl_easy_cleanup(curl);
 
-	printf(readBuffer.c_str());
-	printf("\n");
+//	printf(readBuffer.c_str());
+//	printf("\n");
 	json_error_t error;
 	json_t* content = json_loads(readBuffer.c_str(), 0, &error);
 	if (!content) {
@@ -121,3 +229,5 @@ json_t* MatrixClient::doRequest(const char* method, std::string path, json_t* bo
 	}
 	return content;
 }
+
+}; // namespace Matrix

source/memorystore.cpp

@@ -0,0 +1,18 @@
+#include "memorystore.h"
+#include <string>
+
+namespace Matrix {
+
+MemoryStore::MemoryStore() {
+	syncToken = "";
+}
+
+void MemoryStore::setSyncToken(std::string token) {
+	syncToken = token;
+}
+
+std::string MemoryStore::getSyncToken() {
+	return syncToken;
+}
+
+}; // namespace Matrix

source/memorystore.h

@@ -0,0 +1,20 @@
+#ifndef _memorystore_h_
+#define _memorystore_h_
+
+#include "../include/matrixclient.h"
+#include <string>
+
+namespace Matrix {
+
+class MemoryStore : public Store {
+private:
+	std::string syncToken;
+public:
+	MemoryStore();
+	void setSyncToken(std::string token);
+	std::string getSyncToken();
+};
+
+}; // namespace Matrix
+
+#endif // _memorystore_h_

source/templatelib.c

@@ -1,6 +0,0 @@
-int myLibFunction() {
-
-	
-	return 42;
-
-}

source/util.cpp

@@ -0,0 +1,24 @@
+#include "util.h"
+#include <string>
+#include <sstream>
+
+// from http://www.zedwood.com/article/cpp-urlencode-function
+std::string urlencode(std::string s) {
+	static const char lookup[]= "0123456789abcdef";
+	std::stringstream e;
+	for(int i = 0, ix = s.length(); i < ix; i++) {
+		const char& c = s[i];
+		if ( (48 <= c && c <= 57) ||//0-9
+			 (65 <= c && c <= 90) ||//abc...xyz
+			 (97 <= c && c <= 122) || //ABC...XYZ
+			 (c=='-' || c=='_' || c=='.' || c=='~') 
+		) {
+			e << c;
+		} else {
+			e << '%';
+			e << lookup[ (c&0xF0)>>4 ];
+			e << lookup[ (c&0x0F) ];
+		}
+	}
+	return e.str();
+}

source/util.h

@@ -0,0 +1,8 @@
+#ifndef _UTIL_H_
+#define _UTIL_H_
+
+#include <string>
+
+std::string urlencode(std::string str);
+
+#endif // _UTIL_H_