#include "matrix.h"\r
\r
+#include <time.h>\r
+#include <stdio.h>\r
#include <mjson.h>\r
\r
\r
#define LOGIN_RESPONSE_SIZE 1024\r
#define LOGIN_URL "/_matrix/client/v3/login"\r
\r
+#define ENCRYPTED_REQUEST_SIZE (1024*5)\r
+#define ENCRYPTED_EVENT_SIZE (1024*10)\r
+#define ROOM_SEND_REQUEST_SIZE 256\r
+#define ROOM_SEND_RESPONSE_SIZE 1024\r
+#define ROOM_SEND_URL "/_matrix/client/v3/rooms/%s/send/%s/%d"\r
+\r
+#define ROOMKEY_REQUEST_SIZE (1024*4)\r
+\r
+#define TODEVICE_EVENT_SIZE (1024*5)\r
+#define TODEVICE_URL "/_matrix/client/v3/sendToDevice/%s/%d"\r
+\r
+#define KEYS_QUERY_URL "/_matrix/client/v3/keys/query"\r
+#define KEYS_QUERY_REQUEST_SIZE 256\r
+#define KEYS_QUERY_RESPONSE_SIZE (1024*10)\r
+\r
+#define KEYS_UPLOAD_URL "/_matrix/client/v3/keys/upload"\r
+#define KEYS_UPLOAD_REQUEST_SIZE 1024*4\r
+#define KEYS_UPLOAD_REQUEST_SIGNED_SIZE 2048*4\r
+#define KEYS_UPLOAD_RESPONSE_SIZE 2048\r
+\r
+#define KEYS_CLAIM_URL "/_matrix/client/v3/keys/claim"\r
+#define KEYS_CLAIM_REQUEST_SIZE 1024\r
+#define KEYS_CLAIM_RESPONSE_SIZE 1024\r
+\r
+#define SYNC_TIMEOUT 5000\r
+\r
+#define JSON_QUERY_SIZE 128\r
+#define JSON_MAX_INDICES 100\r
+#define JSON_MAX_ENTRY_SIZE 1024\r
+\r
+#define MAX(a,b) ((a) > (b) ? (a) : (b))\r
+#define MIN(a,b) ((a) < (b) ? (a) : (b))\r
+\r
+void\r
+Randomize(\r
+ uint8_t * random,\r
+ int randomLen)\r
+{\r
+ static bool first = true;\r
+ if (first) { srand(time(0)); first = false; }\r
+\r
+ for (int i = 0; i < randomLen; i++)\r
+ {\r
+ random[i] = rand() % 256;\r
+ }\r
+}\r
+\r
+bool\r
+JsonEscape(\r
+ const char * sIn, int sInLen,\r
+ char * sOut, int sOutCap)\r
+{\r
+ int sOutIndex = 0;\r
+\r
+ for (int i = 0; i < sInLen; i++)\r
+ {\r
+ if (i >= sOutCap)\r
+ return false;\r
+ \r
+ if (sIn[i] == '.' ||\r
+ sIn[i] == '[' ||\r
+ sIn[i] == ']'\r
+ ) {\r
+ sOut[sOutIndex++] = '\\';\r
+ }\r
+ sOut[sOutIndex++] = sIn[i];\r
+ }\r
+\r
+ if (sOutIndex < sOutCap)\r
+ sOut[sOutIndex] = '\0';\r
+\r
+ return true;\r
+}\r
+\r
+bool\r
+JsonCanonicalize(\r
+ const char * sIn, int sInLen,\r
+ char * sOut, int sOutCap)\r
+{\r
+ snprintf(sOut, sOutCap, "{}");\r
+\r
+ int koff, klen, voff, vlen, vtype, off;\r
+\r
+ struct Key {\r
+ const char * ptr;\r
+ int len;\r
+ };\r
+\r
+ struct Key keys[JSON_MAX_INDICES];\r
+ int numKeys = 0;\r
+\r
+ for (off = 0; (off = mjson_next(sIn, sInLen, off, &koff, &klen, &voff, &vlen, &vtype)) != 0; ) {\r
+ keys[numKeys].ptr = sIn + koff;\r
+ keys[numKeys].len = klen;\r
+ numKeys++;\r
+ }\r
+\r
+ for (int i = 0; i < numKeys; i++) {\r
+ for (int j = i; j < numKeys; j++) {\r
+ if (\r
+ strncmp(\r
+ keys[i].ptr,\r
+ keys[j].ptr,\r
+ MIN(keys[i].len, keys[j].len)\r
+ ) > 0\r
+ ) {\r
+ struct Key k = keys[i];\r
+ keys[i] = keys[j];\r
+ keys[j] = k;\r
+ }\r
+ }\r
+ }\r
+\r
+ for (int i = 0; i < numKeys; i++) {\r
+ char jp[JSON_QUERY_SIZE];\r
+ snprintf(jp, JSON_QUERY_SIZE, "$.%.*s", keys[i].len-2, keys[i].ptr+1);\r
+\r
+ const char * valPtr;\r
+ int valLen;\r
+ mjson_find(sIn, sInLen, jp, &valPtr, &valLen);\r
+ \r
+ static char newEntry[JSON_MAX_ENTRY_SIZE];\r
+ snprintf(newEntry, JSON_MAX_ENTRY_SIZE, "{%.*s:%.*s}", keys[i].len, keys[i].ptr, valLen, valPtr);\r
+\r
+ char * buffer = strdup(sOut);\r
+\r
+ struct mjson_fixedbuf fb = { sOut, sOutCap, 0 };\r
+ mjson_merge(buffer, strlen(buffer), newEntry, strlen(newEntry), mjson_print_fixed_buf, &fb);\r
+\r
+ free(buffer);\r
+ }\r
+\r
+ // TODO: recursively sort entries\r
+\r
+ return true;\r
+}\r
+\r
+bool JsonSign(\r
+ MatrixClient * client,\r
+ const char * sIn, int sInLen,\r
+ char * sOut, int sOutCap)\r
+{\r
+ static char signature[OLM_SIGNATURE_SIZE];\r
+ size_t res =\r
+ olm_account_sign(client->olmAccount.account,\r
+ sIn, sInLen,\r
+ signature, OLM_SIGNATURE_SIZE);\r
+ \r
+ int signatureLen = res;\r
+ \r
+ static char thisSigningKey[SIGNING_KEY_SIZE];\r
+ MatrixOlmAccountGetSigningKey(&client->olmAccount, thisSigningKey, SIGNING_KEY_SIZE);\r
+\r
+ static char signatureJson[JSON_SIGNATURE_SIZE];\r
+ int signatureJsonLen =\r
+ mjson_snprintf(signatureJson, JSON_SIGNATURE_SIZE,\r
+ "{"\r
+ "\"signatures\":{"\r
+ "\"%s\":{"\r
+ "\"ed25519:%s\":\"%.*s\""\r
+ "}"\r
+ "}"\r
+ "}",\r
+ client->userId,\r
+ //"1",\r
+ client->deviceId,\r
+ signatureLen, signature);\r
+\r
+ struct mjson_fixedbuf result = { sOut, sOutCap, 0 };\r
+ mjson_merge(\r
+ sIn, sInLen,\r
+ signatureJson, signatureJsonLen,\r
+ mjson_print_fixed_buf,\r
+ &result);\r
+\r
+ return true;\r
+}\r
+\r
+\r
+bool\r
+MatrixOlmAccountInit(\r
+ MatrixOlmAccount * account)\r
+{\r
+ account->account = olm_account(account->memory);\r
+\r
+ static uint8_t random[OLM_ACCOUNT_RANDOM_SIZE];\r
+ Randomize(random, OLM_ACCOUNT_RANDOM_SIZE);\r
+\r
+ size_t res = olm_create_account(\r
+ account->account,\r
+ random,\r
+ OLM_ACCOUNT_RANDOM_SIZE);\r
+\r
+ return res != olm_error();\r
+}\r
+\r
+bool\r
+MatrixOlmAccountUnpickle(\r
+ MatrixOlmAccount * account,\r
+ void * pickled, int pickledLen,\r
+ const void * key, int keyLen)\r
+{\r
+ size_t res;\r
+ res = olm_unpickle_account(account->account,\r
+ key, keyLen,\r
+ pickled, pickledLen);\r
+ if (res == olm_error()) {\r
+ printf("error unpickling olm account:%s\n",\r
+ olm_account_last_error(account->account));\r
+ }\r
+ return res != olm_error();\r
+}\r
+\r
+bool\r
+MatrixOlmAccountGetDeviceKey(\r
+ MatrixOlmAccount * account,\r
+ char * key, int keyCap)\r
+{\r
+ static char deviceKeysJson[OLM_IDENTITY_KEYS_JSON_SIZE];\r
+ size_t res =\r
+ olm_account_identity_keys(account->account,\r
+ deviceKeysJson, OLM_IDENTITY_KEYS_JSON_SIZE);\r
+ mjson_get_string(deviceKeysJson, res,\r
+ "$.curve25519",\r
+ key, keyCap);\r
+ return true;\r
+}\r
+\r
+bool\r
+MatrixOlmAccountGetSigningKey(\r
+ MatrixOlmAccount * account,\r
+ char * key, int keyCap)\r
+{\r
+ static char deviceKeysJson[OLM_IDENTITY_KEYS_JSON_SIZE];\r
+ size_t res =\r
+ olm_account_identity_keys(account->account,\r
+ deviceKeysJson, OLM_IDENTITY_KEYS_JSON_SIZE);\r
+ mjson_get_string(deviceKeysJson, res,\r
+ "$.ed25519",\r
+ key, keyCap);\r
+ return true;\r
+}\r
+\r
+bool\r
+MatrixOlmSessionFrom(\r
+ MatrixOlmSession * session,\r
+ OlmAccount * olmAccount,\r
+ const char * deviceId,\r
+ const char * deviceKey,\r
+ const char * encrypted)\r
+{\r
+ memset(session, 0, sizeof(MatrixOlmSession));\r
+\r
+ session->deviceId = deviceId;\r
+\r
+ session->session =\r
+ olm_session(session->memory);\r
+ \r
+ char * encryptedCopy = strdup(encrypted);\r
+\r
+ size_t res =\r
+ olm_create_inbound_session_from(session->session, olmAccount,\r
+ deviceKey, strlen(deviceKey),\r
+ encryptedCopy, strlen(encryptedCopy));\r
+ \r
+ if (res == olm_error()) {\r
+ printf("error olm:%s\n", olm_session_last_error(session->session));\r
+ }\r
+\r
+ return res != olm_error();\r
+}\r
+\r
+bool\r
+MatrixOlmSessionTo(\r
+ MatrixOlmSession * session,\r
+ OlmAccount * olmAccount,\r
+ const char * deviceId,\r
+ const char * deviceKey,\r
+ const char * deviceOnetimeKey)\r
+{\r
+ memset(session, 0, sizeof(MatrixOlmSession));\r
+\r
+ session->deviceId = deviceId;\r
+\r
+ session->session =\r
+ olm_session(session->memory);\r
+\r
+ static uint8_t random[OLM_OUTBOUND_SESSION_RANDOM_SIZE];\r
+ Randomize(random, OLM_OUTBOUND_SESSION_RANDOM_SIZE);\r
+\r
+ size_t res =\r
+ olm_create_outbound_session(session->session,\r
+ olmAccount,\r
+ deviceKey, strlen(deviceKey),\r
+ deviceOnetimeKey, strlen(deviceOnetimeKey),\r
+ random, OLM_OUTBOUND_SESSION_RANDOM_SIZE);\r
+ \r
+ if (res == olm_error()) {\r
+ printf("error olm:%s\n", olm_session_last_error(session->session));\r
+ }\r
+\r
+ return res != olm_error();\r
+}\r
+\r
+bool\r
+MatrixOlmSessionUnpickle(\r
+ MatrixOlmSession * session,\r
+ const char * deviceId,\r
+ void * pickled, int pickledLen,\r
+ const void * key, int keyLen)\r
+{\r
+ memset(session, 0, sizeof(MatrixOlmSession));\r
+\r
+ session->deviceId = deviceId;\r
+\r
+ session->session =\r
+ olm_session(session->memory);\r
+ \r
+ size_t res;\r
+ res = olm_unpickle_session(session->session,\r
+ key, keyLen,\r
+ pickled, pickledLen);\r
+ \r
+ if (res == olm_error()) {\r
+ printf("error unpickling olm session:%s\n", olm_session_last_error(session->session));\r
+ }\r
+\r
+ return res != olm_error();\r
+}\r
+\r
+bool\r
+MatrixOlmSessionEncrypt(\r
+ MatrixOlmSession * session,\r
+ const char * plaintext,\r
+ char * outBuffer, int outBufferCap)\r
+{\r
+ static uint8_t random[OLM_ENCRYPT_RANDOM_SIZE];\r
+ Randomize(random, OLM_ENCRYPT_RANDOM_SIZE);\r
+\r
+ size_t res = olm_encrypt(session->session,\r
+ plaintext, strlen(plaintext),\r
+ random, OLM_ENCRYPT_RANDOM_SIZE,\r
+ outBuffer, outBufferCap);\r
+\r
+ return res != olm_error();\r
+}\r
+\r
+bool\r
+MatrixOlmSessionDecrypt(\r
+ MatrixOlmSession * session,\r
+ size_t messageType,\r
+ char * encrypted,\r
+ char * outBuffer, int outBufferCap)\r
+{\r
+ static uint8_t random[OLM_ENCRYPT_RANDOM_SIZE];\r
+ Randomize(random, OLM_ENCRYPT_RANDOM_SIZE);\r
+\r
+ size_t res =\r
+ olm_decrypt(session->session,\r
+ messageType,\r
+ encrypted, strlen(encrypted),\r
+ outBuffer, outBufferCap);\r
+ \r
+ if (res != olm_error() && res < outBufferCap)\r
+ outBuffer[res] = '\0';\r
+\r
+ return res != olm_error();\r
+}\r
+\r
+bool\r
+MatrixMegolmInSessionInit(\r
+ MatrixMegolmInSession * session,\r
+ const char * roomId,\r
+ const char * sessionId,\r
+ const char * sessionKey, int sessionKeyLen)\r
+{\r
+ memset(session, 0, sizeof(MatrixMegolmInSession));\r
+ \r
+ strncpy(session->roomId, roomId, sizeof(session->roomId));\r
+ strncpy(session->id, sessionId, sizeof(session->id));\r
+ strncpy(session->key, sessionKey, sizeof(session->key));\r
+\r
+ session->session =\r
+ olm_inbound_group_session(session->memory);\r
+\r
+ size_t res =\r
+ olm_init_inbound_group_session(\r
+ // olm_import_inbound_group_session(\r
+ session->session,\r
+ (const uint8_t *)sessionKey, sessionKeyLen);\r
+ if (res == olm_error()) {\r
+ printf("Error initializing Megolm session: %s\n", olm_inbound_group_session_last_error(session->session));\r
+ }\r
+\r
+ return res != olm_error();\r
+}\r
+\r
+bool\r
+MatrixMegolmInSessionDecrypt(\r
+ MatrixMegolmInSession * session,\r
+ const char * encrypted, int encryptedLen,\r
+ char * outDecrypted, int outDecryptedCap)\r
+{\r
+ // uint8_t buffer[1024];\r
+ // memcpy(buffer, encrypted, encryptedLen);\r
+\r
+ uint32_t megolmInMessageIndex;\r
+\r
+ size_t res =\r
+ olm_group_decrypt(session->session,\r
+ (uint8_t *)encrypted, encryptedLen,\r
+ (uint8_t *)outDecrypted, outDecryptedCap,\r
+ &megolmInMessageIndex);\r
+ \r
+ printf("message index: %d\n", megolmInMessageIndex);\r
+ \r
+ if (res == olm_error()) {\r
+ printf("error decrypting megolm message: %s\n", olm_inbound_group_session_last_error(session->session));\r
+ }\r
+ else {\r
+ printf("decrypted len: %d\n", res);\r
+ }\r
+ \r
+ return true;\r
+}\r
+\r
+// https://matrix.org/docs/guides/end-to-end-encryption-implementation-guide#starting-a-megolm-session\r
+bool\r
+MatrixMegolmOutSessionInit(\r
+ MatrixMegolmOutSession * session,\r
+ const char * roomId)\r
+{\r
+ memset(session, 0, sizeof(MatrixMegolmOutSession));\r
+\r
+ static uint8_t random[MEGOLM_INIT_RANDOM_SIZE];\r
+ Randomize(random, MEGOLM_INIT_RANDOM_SIZE);\r
+\r
+ strncpy(session->roomId, roomId, ROOM_ID_SIZE);\r
+\r
+ session->session =\r
+ olm_outbound_group_session(session->memory);\r
+\r
+ olm_init_outbound_group_session(\r
+ session->session,\r
+ random,\r
+ MEGOLM_INIT_RANDOM_SIZE);\r
+\r
+ olm_outbound_group_session_id(session->session,\r
+ (uint8_t *)session->id,\r
+ MEGOLM_SESSION_ID_SIZE);\r
+ \r
+ olm_outbound_group_session_key(session->session,\r
+ (uint8_t *)session->key,\r
+ MEGOLM_SESSION_KEY_SIZE);\r
+ \r
+ return true;\r
+}\r
+\r
+bool\r
+MatrixMegolmOutSessionEncrypt(\r
+ MatrixMegolmOutSession * session,\r
+ const char * plaintext,\r
+ char * outBuffer, int outBufferCap)\r
+{\r
+ size_t res = olm_group_encrypt(session->session,\r
+ (uint8_t *)plaintext, strlen(plaintext),\r
+ (uint8_t *)outBuffer, outBufferCap);\r
+\r
+ return res != olm_error();\r
+}\r
+\r
+bool\r
+MatrixMegolmOutSessionSave(\r
+ MatrixMegolmOutSession * session,\r
+ const char * filename,\r
+ const char * key)\r
+{\r
+ FILE * f = fopen(filename, "w");\r
+\r
+ size_t roomIdLen = strlen(session->roomId);\r
+ fwrite(&roomIdLen, sizeof(size_t), 1, f);\r
+ fwrite(session->roomId, 1, roomIdLen, f);\r
+\r
+ size_t pickleBufferLen =\r
+ olm_pickle_outbound_group_session_length(\r
+ session->session);\r
+ void * pickleBuffer = malloc(pickleBufferLen);\r
+\r
+ olm_pickle_outbound_group_session(\r
+ session->session,\r
+ key, strlen(key),\r
+ pickleBuffer, pickleBufferLen);\r
+ \r
+ fwrite(&pickleBufferLen, sizeof(size_t), 1, f);\r
+ fwrite(pickleBuffer, 1, pickleBufferLen, f);\r
+ free(pickleBuffer);\r
+\r
+ fclose(f);\r
+\r
+ return true;\r
+}\r
+\r
+bool\r
+MatrixMegolmOutSessionLoad(\r
+ MatrixMegolmOutSession * session,\r
+ const char * filename,\r
+ const char * key)\r
+{\r
+ FILE * f = fopen(filename, "r");\r
+\r
+ size_t roomIdLen;\r
+ fread(&roomIdLen, sizeof(size_t), 1, f);\r
+ fread(session->roomId, 1, roomIdLen, f);\r
+ for (int i = roomIdLen; i < ROOM_ID_SIZE; i++)\r
+ session->roomId[i] = '\0';\r
+\r
+ size_t pickleBufferLen;\r
+ fread(&pickleBufferLen, sizeof(size_t), 1, f);\r
+\r
+ void * pickleBuffer = malloc(pickleBufferLen);\r
+ fread(pickleBuffer, 1, pickleBufferLen, f);\r
+\r
+ olm_unpickle_outbound_group_session(\r
+ session->session,\r
+ key, strlen(key),\r
+ pickleBuffer, pickleBufferLen);\r
+ \r
+ free(pickleBuffer);\r
+\r
+ olm_outbound_group_session_id(session->session, (uint8_t *)session->id, MEGOLM_SESSION_ID_SIZE);\r
+ olm_outbound_group_session_key(session->session, (uint8_t *)session->key, MEGOLM_SESSION_KEY_SIZE);\r
+\r
+ fclose(f);\r
+\r
+ return true;\r
+}\r
+\r
+\r
\r
bool\r
MatrixClientInit(\r
MatrixClient * client,\r
- char * server, int serverLen\r
-) {\r
- strcpy_s(\r
- client->server,\r
- SERVER_SIZE,\r
- server\r
- );\r
- client->serverLen = serverLen;\r
+ const char * server)\r
+{\r
+ memset(client, 0, sizeof(MatrixClient));\r
+\r
+ strcpy(client->server, server);\r
+\r
+ // init olm account\r
+ MatrixOlmAccountInit(&client->olmAccount);\r
\r
return true;\r
}\r
\r
-// https://spec.matrix.org/v1.6/client-server-api/#post_matrixclientv3login\r
bool\r
-MatrixClientLoginPassword(\r
+MatrixClientSave(\r
MatrixClient * client,\r
- char * username, int usernameLen,\r
- char * password, int passwordLen,\r
- char * displayName, int displayNameLen\r
-) {\r
- static char requestBuffer[LOGIN_REQUEST_SIZE];\r
+ const char * filename)\r
+{\r
+ FILE * f = fopen(filename, "w");\r
+ \r
+ \r
+ char thisDeviceKey[DEVICE_KEY_SIZE];\r
+ MatrixOlmAccountGetDeviceKey(&client->olmAccount, thisDeviceKey, DEVICE_KEY_SIZE);\r
+ char thisSigningKey[DEVICE_KEY_SIZE];\r
+ MatrixOlmAccountGetSigningKey(&client->olmAccount, thisSigningKey, DEVICE_KEY_SIZE);\r
+\r
+\r
+ fwrite(thisDeviceKey, 1, DEVICE_KEY_SIZE, f);\r
+ fwrite(thisSigningKey, 1, DEVICE_KEY_SIZE, f);\r
+ fwrite(client->userId, 1, USER_ID_SIZE, f);\r
+ fwrite(client->server, 1, SERVER_SIZE, f);\r
+ fwrite(client->accessToken, 1, ACCESS_TOKEN_SIZE, f);\r
+ fwrite(client->deviceId, 1, DEVICE_ID_SIZE, f);\r
+ fwrite(client->expireMs, 1, EXPIRE_MS_SIZE, f);\r
+ fwrite(client->refreshToken, 1, REFRESH_TOKEN_SIZE, f);\r
+\r
+ fwrite(&client->numDevices, sizeof(int), 1, f);\r
+ for (int i = 0; i < client->numDevices; i++) {\r
+ fwrite(client->devices[i].deviceId, 1, DEVICE_ID_SIZE, f);\r
+ fwrite(client->devices[i].deviceKey, 1, DEVICE_KEY_SIZE, f);\r
+ }\r
+\r
+ fclose(f);\r
+ return true;\r
+}\r
+\r
+bool\r
+MatrixClientLoad(\r
+ MatrixClient * client,\r
+ const char * filename)\r
+{\r
+ FILE * f = fopen(filename, "r");\r
+ \r
+ \r
+ char thisDeviceKey[DEVICE_KEY_SIZE];\r
+ MatrixOlmAccountGetDeviceKey(&client->olmAccount, thisDeviceKey, DEVICE_KEY_SIZE);\r
+ char thisSigningKey[DEVICE_KEY_SIZE];\r
+ MatrixOlmAccountGetSigningKey(&client->olmAccount, thisSigningKey, DEVICE_KEY_SIZE);\r
+\r
+\r
+ fread(thisDeviceKey, 1, DEVICE_KEY_SIZE, f);\r
+ fread(thisSigningKey, 1, DEVICE_KEY_SIZE, f);\r
+ fread(client->userId, 1, USER_ID_SIZE, f);\r
+ fread(client->server, 1, SERVER_SIZE, f);\r
+ fread(client->accessToken, 1, ACCESS_TOKEN_SIZE, f);\r
+ fread(client->deviceId, 1, DEVICE_ID_SIZE, f);\r
+ fread(client->expireMs, 1, EXPIRE_MS_SIZE, f);\r
+ fread(client->refreshToken, 1, REFRESH_TOKEN_SIZE, f);\r
+\r
+ fread(&client->numDevices, sizeof(int), 1, f);\r
+ for (int i = 0; i < client->numDevices; i++) {\r
+ fread(client->devices[i].deviceId, 1, DEVICE_ID_SIZE, f);\r
+ fread(client->devices[i].deviceKey, 1, DEVICE_KEY_SIZE, f);\r
+ }\r
+\r
+ fclose(f);\r
+ return true;\r
+}\r
+\r
+bool\r
+MatrixClientSetAccessToken(\r
+ MatrixClient * client,\r
+ const char * accessToken)\r
+{\r
+ for (int i = 0; i < ACCESS_TOKEN_SIZE-1; i++)\r
+ client->accessToken[i] = accessToken[i];\r
+ client->accessToken[ACCESS_TOKEN_SIZE-1] = '\0';\r
+\r
+ return true;\r
+}\r
+\r
+bool\r
+MatrixClientSetDeviceId(\r
+ MatrixClient * client,\r
+ const char * deviceId)\r
+{\r
+ for (int i = 0; i < DEVICE_ID_SIZE-1; i++)\r
+ client->deviceId[i] = deviceId[i];\r
+ client->deviceId[DEVICE_ID_SIZE-1] = '\0';\r
+\r
+ return true;\r
+}\r
+\r
+bool\r
+MatrixClientSetUserId(\r
+ MatrixClient * client,\r
+ const char * userId)\r
+{\r
+ for (int i = 0; i < USER_ID_SIZE-1; i++)\r
+ client->userId[i] = userId[i];\r
+ client->userId[USER_ID_SIZE-1] = '\0';\r
+\r
+ return true;\r
+}\r
+\r
+bool\r
+MatrixClientGenerateOnetimeKeys(\r
+ MatrixClient * client,\r
+ int numberOfKeys)\r
+{\r
+ static uint8_t random[OLM_ONETIME_KEYS_RANDOM_SIZE];\r
+ Randomize(random, OLM_ONETIME_KEYS_RANDOM_SIZE);\r
+\r
+ size_t res =\r
+ olm_account_generate_one_time_keys(client->olmAccount.account,\r
+ numberOfKeys, random, OLM_ONETIME_KEYS_RANDOM_SIZE);\r
+\r
+ return res != olm_error();\r
+}\r
+\r
+// https://spec.matrix.org/v1.7/client-server-api/#post_matrixclientv3keysupload\r
+bool\r
+MatrixClientUploadOnetimeKeys(\r
+ MatrixClient * client)\r
+{\r
+ static char requestBuffer[KEYS_UPLOAD_REQUEST_SIZE];\r
+\r
+ mjson_snprintf(requestBuffer, KEYS_UPLOAD_REQUEST_SIZE,\r
+ "{");\r
\r
- int requestLen =\r
- mjson_snprintf(requestBuffer, LOGIN_REQUEST_SIZE,\r
+ static char onetimeKeysBuffer[1024];\r
+ olm_account_one_time_keys(client->olmAccount.account,\r
+ onetimeKeysBuffer, 1024);\r
+\r
+ const char *keys;\r
+ int keysLen;\r
+ mjson_find(onetimeKeysBuffer, strlen(onetimeKeysBuffer), "$.curve25519", &keys, &keysLen);\r
+\r
+ int koff, klen, voff, vlen, vtype, off = 0;\r
+ while ((off = mjson_next(keys, keysLen, off, &koff, &klen, &voff, &vlen, &vtype)) != 0) {\r
+ static char keyJson[JSON_ONETIME_KEY_SIZE];\r
+ \r
+ int keyJsonLen =\r
+ snprintf(keyJson, JSON_ONETIME_KEY_SIZE,\r
+ "{\"key\":\"%.*s\"}",\r
+ vlen-2, keys + voff+1);\r
+\r
+ static char keyJsonSigned[JSON_ONETIME_KEY_SIGNED_SIZE];\r
+\r
+ JsonSign(client,\r
+ keyJson, keyJsonLen,\r
+ keyJsonSigned, JSON_ONETIME_KEY_SIGNED_SIZE);\r
+ \r
+ mjson_snprintf(requestBuffer+strlen(requestBuffer), KEYS_UPLOAD_REQUEST_SIZE-strlen(requestBuffer),\r
+ "\"signed_curve25519:%.*s\":%s,",\r
+ klen-2, keys + koff+1,\r
+ keyJsonSigned);\r
+ }\r
+\r
+ if (requestBuffer[strlen(requestBuffer)-1] == ',')\r
+ requestBuffer[strlen(requestBuffer)-1] = '\0';\r
+\r
+ mjson_snprintf(requestBuffer+strlen(requestBuffer), KEYS_UPLOAD_REQUEST_SIZE-strlen(requestBuffer),\r
+ "}");\r
+ \r
+ // static char onetimeKeysSignedBuffer[KEYS_UPLOAD_REQUEST_SIGNED_SIZE];\r
+ // JsonSign(client,\r
+ // requestBuffer, strlen(requestBuffer),\r
+ // onetimeKeysSignedBuffer, KEYS_UPLOAD_REQUEST_SIZE);\r
+ \r
+ // static char finalEvent[KEYS_UPLOAD_REQUEST_SIGNED_SIZE];\r
+ // snprintf(finalEvent, KEYS_UPLOAD_REQUEST_SIGNED_SIZE,\r
+ // "{\"one_time_keys\":%s}", onetimeKeysSignedBuffer);\r
+ static char finalEvent[KEYS_UPLOAD_REQUEST_SIGNED_SIZE];\r
+ snprintf(finalEvent, KEYS_UPLOAD_REQUEST_SIGNED_SIZE,\r
+ "{\"one_time_keys\":%s}", requestBuffer);\r
+\r
+ static char responseBuffer[KEYS_UPLOAD_RESPONSE_SIZE];\r
+ MatrixHttpPost(client,\r
+ KEYS_UPLOAD_URL,\r
+ finalEvent,\r
+ responseBuffer, KEYS_UPLOAD_RESPONSE_SIZE,\r
+ true);\r
+\r
+ return true;\r
+}\r
+\r
+// https://spec.matrix.org/v1.7/client-server-api/#post_matrixclientv3keysupload\r
+bool\r
+MatrixClientUploadDeviceKey(\r
+ MatrixClient * client)\r
+{\r
+ char thisDeviceKey[DEVICE_KEY_SIZE];\r
+ MatrixOlmAccountGetDeviceKey(&client->olmAccount, thisDeviceKey, DEVICE_KEY_SIZE);\r
+ char thisSigningKey[DEVICE_KEY_SIZE];\r
+ MatrixOlmAccountGetSigningKey(&client->olmAccount, thisSigningKey, DEVICE_KEY_SIZE);\r
+\r
+ static char deviceKeysBuffer[KEYS_UPLOAD_REQUEST_SIZE];\r
+\r
+ int deviceKeysBufferLen =\r
+ mjson_snprintf(deviceKeysBuffer, KEYS_UPLOAD_REQUEST_SIZE,\r
"{"\r
- "\"type\": \"m.login.password\","\r
- "\"identifier\": {"\r
- "\"type\": \"m.id.user\","\r
- "\"user\": \"%.*s\""\r
+ "\"algorithms\":[\"m.olm.v1.curve25519-aes-sha2\",\"m.megolm.v1.aes-sha2\"],"\r
+ "\"device_id\":\"%s\","\r
+ "\"keys\":{"\r
+ "\"curve25519:%s\":\"%s\","\r
+ "\"ed25519:%s\":\"%s\""\r
"},"\r
- "\"password\": \"%.*s\","\r
- "\"initial_device_display_name\": \"%.*s\""\r
+ "\"user_id\":\"%s\""\r
"}",\r
- usernameLen, username,\r
- passwordLen, password,\r
- displayNameLen, displayName);\r
+ client->deviceId,\r
+ client->deviceId, thisDeviceKey,\r
+ client->deviceId, thisSigningKey,\r
+ client->userId);\r
+\r
+ static char deviceKeysSignedBuffer[KEYS_UPLOAD_REQUEST_SIGNED_SIZE];\r
+ JsonSign(client,\r
+ deviceKeysBuffer, deviceKeysBufferLen,\r
+ deviceKeysSignedBuffer, KEYS_UPLOAD_REQUEST_SIZE);\r
+ \r
+ static char finalEvent[KEYS_UPLOAD_REQUEST_SIGNED_SIZE];\r
+ snprintf(finalEvent, KEYS_UPLOAD_REQUEST_SIGNED_SIZE,\r
+ "{\"device_keys\":%s}", deviceKeysSignedBuffer);\r
+\r
+ static char responseBuffer[KEYS_UPLOAD_RESPONSE_SIZE];\r
+ MatrixHttpPost(client,\r
+ KEYS_UPLOAD_URL,\r
+ finalEvent,\r
+ responseBuffer, KEYS_UPLOAD_RESPONSE_SIZE,\r
+ true);\r
+\r
+ return true;\r
+}\r
+\r
+// https://spec.matrix.org/v1.7/client-server-api/#post_matrixclientv3keysclaim\r
+bool\r
+MatrixClientClaimOnetimeKey(\r
+ MatrixClient * client,\r
+ const char * userId,\r
+ const char * deviceId,\r
+ char * outOnetimeKey, int outOnetimeKeyCap)\r
+{\r
+ static char requestBuffer[KEYS_CLAIM_REQUEST_SIZE];\r
+ mjson_snprintf(requestBuffer, KEYS_CLAIM_REQUEST_SIZE,\r
+ "{"\r
+ "\"one_time_keys\":{"\r
+ "\"%s\":{"\r
+ "\"%s\":\"signed_curve25519\""\r
+ "}"\r
+ "},"\r
+ "\"timeout\":10000"\r
+ "}",\r
+ userId,\r
+ deviceId);\r
+\r
+ static char responseBuffer[KEYS_CLAIM_RESPONSE_SIZE];\r
+ MatrixHttpPost(client,\r
+ KEYS_CLAIM_URL,\r
+ requestBuffer,\r
+ responseBuffer, KEYS_CLAIM_RESPONSE_SIZE,\r
+ true);\r
+ \r
+ char userIdEscaped[USER_ID_SIZE];\r
+ JsonEscape(userId, strlen(userId),\r
+ userIdEscaped, USER_ID_SIZE);\r
+ \r
+ static char query[JSON_QUERY_SIZE];\r
+ snprintf(query, JSON_QUERY_SIZE,\r
+ "$.one_time_keys.%s.%s",\r
+ userIdEscaped,\r
+ deviceId);\r
+ \r
+ const char * keyObject;\r
+ int keyObjectSize;\r
+ mjson_find(responseBuffer, strlen(responseBuffer),\r
+ query,\r
+ &keyObject, &keyObjectSize);\r
+ \r
+ int koff, klen, voff, vlen, vtype;\r
+ mjson_next(keyObject, keyObjectSize, 0,\r
+ &koff, &klen, &voff, &vlen, &vtype);\r
+ \r
+ mjson_get_string(keyObject + voff, vlen,\r
+ "$.key", outOnetimeKey, outOnetimeKeyCap);\r
+ \r
+ // TODO:verify signature\r
+ \r
+ return true;\r
+}\r
+\r
+// https://spec.matrix.org/v1.6/client-server-api/#post_matrixclientv3login\r
+bool\r
+MatrixClientLoginPassword(\r
+ MatrixClient * client,\r
+ const char * username,\r
+ const char * password,\r
+ const char * displayName)\r
+{\r
+ static char requestBuffer[LOGIN_REQUEST_SIZE];\r
+\r
+ mjson_snprintf(requestBuffer, LOGIN_REQUEST_SIZE,\r
+ "{"\r
+ "\"type\":\"m.login.password\","\r
+ "\"identifier\":{"\r
+ "\"type\":\"m.id.user\","\r
+ "\"user\":\"%s\""\r
+ "},"\r
+ "\"password\":\"%s\","\r
+ "\"initial_device_display_name\":\"%s\""\r
+ "}",\r
+ username,\r
+ password,\r
+ displayName);\r
\r
static char responseBuffer[LOGIN_RESPONSE_SIZE];\r
- int responseLen;\r
bool result =\r
MatrixHttpPost(client,\r
LOGIN_URL,\r
- requestBuffer, requestLen,\r
- responseBuffer, LOGIN_RESPONSE_SIZE, &responseLen);\r
+ requestBuffer,\r
+ responseBuffer, LOGIN_RESPONSE_SIZE,\r
+ false);\r
\r
if (!result)\r
return false;\r
+ \r
+ int responseLen = strlen(responseBuffer);\r
+\r
+ mjson_get_string(responseBuffer, responseLen,\r
+ "$.access_token",\r
+ client->accessToken, ACCESS_TOKEN_SIZE);\r
+ mjson_get_string(responseBuffer, responseLen,\r
+ "$.device_id",\r
+ client->deviceId, DEVICE_ID_SIZE);\r
+ mjson_get_string(responseBuffer, responseLen,\r
+ "$.expires_in_ms",\r
+ client->expireMs, EXPIRE_MS_SIZE);\r
+ mjson_get_string(responseBuffer, responseLen,\r
+ "$.refresh_token",\r
+ client->refreshToken, REFRESH_TOKEN_SIZE);\r
+\r
+ return true;\r
+}\r
+\r
+// https://spec.matrix.org/v1.6/client-server-api/#put_matrixclientv3roomsroomidsendeventtypetxnid\r
+bool\r
+MatrixClientSendEvent(\r
+ MatrixClient * client,\r
+ const char * roomId,\r
+ const char * msgType,\r
+ const char * msgBody)\r
+{ \r
+ static char requestUrl[MAX_URL_LEN];\r
+ sprintf(requestUrl,\r
+ ROOM_SEND_URL, roomId, msgType, (int)time(NULL));\r
+\r
+ static char responseBuffer[ROOM_SEND_RESPONSE_SIZE];\r
+ bool result =\r
+ MatrixHttpPut(client,\r
+ requestUrl,\r
+ msgBody,\r
+ responseBuffer, ROOM_SEND_RESPONSE_SIZE,\r
+ true);\r
+ \r
+ return result;\r
+}\r
+\r
+// https://spec.matrix.org/v1.6/client-server-api/#mroomencrypted\r
+// https://matrix.org/docs/guides/end-to-end-encryption-implementation-guide#sending-an-encrypted-message-event\r
+bool\r
+MatrixClientSendEventEncrypted(\r
+ MatrixClient * client,\r
+ const char * roomId,\r
+ const char * msgType,\r
+ const char * msgBody)\r
+{\r
+ // event json\r
+ static char requestBuffer[ROOM_SEND_REQUEST_SIZE];\r
+ sprintf(requestBuffer,\r
+ "{"\r
+ "\"type\":\"%s\","\r
+ "\"content\":%s,"\r
+ "\"room_id\":\"%s\""\r
+ "}",\r
+ msgType,\r
+ msgBody,\r
+ roomId);\r
+\r
+ // get megolm session\r
+ MatrixMegolmOutSession * outSession;\r
+ if (! MatrixClientGetMegolmOutSession(client, roomId, &outSession))\r
+ MatrixClientNewMegolmOutSession(client, roomId, &outSession);\r
+ \r
+ // encrypt\r
+ static char encryptedBuffer[ENCRYPTED_REQUEST_SIZE];\r
+ MatrixMegolmOutSessionEncrypt(outSession,\r
+ requestBuffer,\r
+ encryptedBuffer, ENCRYPTED_REQUEST_SIZE);\r
+\r
+ char thisDeviceKey[DEVICE_KEY_SIZE];\r
+ MatrixOlmAccountGetDeviceKey(&client->olmAccount, thisDeviceKey, DEVICE_KEY_SIZE);\r
+ \r
+\r
+ // encrypted event json\r
+ const char * senderKey = thisDeviceKey;\r
+ const char * sessionId = outSession->id;\r
+ const char * deviceId = client->deviceId;\r
+\r
+ static char encryptedEventBuffer[ENCRYPTED_EVENT_SIZE];\r
+ sprintf(encryptedEventBuffer,\r
+ "{"\r
+ "\"algorithm\":\"m.megolm.v1.aes-sha2\","\r
+ "\"ciphertext\":\"%s\","\r
+ "\"device_id\":\"%s\","\r
+ "\"sender_key\":\"%s\","\r
+ "\"session_id\":\"%s\""\r
+ "}",\r
+ encryptedBuffer,\r
+ deviceId,\r
+ senderKey,\r
+ sessionId);\r
+\r
+ // send\r
+ return MatrixClientSendEvent(client,\r
+ roomId,\r
+ "m.room.encrypted",\r
+ encryptedEventBuffer);\r
+}\r
+\r
+// https://spec.matrix.org/v1.6/client-server-api/#get_matrixclientv3sync\r
+bool\r
+MatrixClientSync(\r
+ MatrixClient * client,\r
+ char * outSyncBuffer, int outSyncCap,\r
+ const char * nextBatch)\r
+{\r
+ // filter={\"event_fields\":[\"to_device\"]}\r
+ static char url[MAX_URL_LEN];\r
+ snprintf(url, MAX_URL_LEN,\r
+ "/_matrix/client/v3/sync?timeout=%d%s",\r
+ SYNC_TIMEOUT,\r
+ strlen(nextBatch) > 0 ? "&since=" : "");\r
+ \r
+ int index = strlen(url);\r
+\r
+ for (size_t i = 0; i < strlen(nextBatch); i++) {\r
+ char c = nextBatch[i];\r
+\r
+ if (c == '~') {\r
+ url[index++] = '%';\r
+ url[index++] = '7';\r
+ url[index++] = 'E';\r
+ }\r
+ else {\r
+ url[index++] = c;\r
+ }\r
+ }\r
+ url[index] = '\0';\r
+\r
+ return\r
+ MatrixHttpGet(client,\r
+ url,\r
+ outSyncBuffer, outSyncCap,\r
+ true);\r
+}\r
+\r
+// https://spec.matrix.org/v1.7/client-server-api/#get_matrixclientv3roomsroomideventeventid\r
+bool\r
+MatrixClientGetRoomEvent(\r
+ MatrixClient * client,\r
+ const char * roomId,\r
+ const char * eventId,\r
+ char * outEvent, int outEventCap)\r
+{\r
+ static char url[MAX_URL_LEN];\r
+ snprintf(url, MAX_URL_LEN,\r
+ "/_matrix/client/v3/rooms/%s/event/%s",\r
+ roomId,\r
+ eventId);\r
+\r
+ return\r
+ MatrixHttpGet(client,\r
+ url,\r
+ outEvent, outEventCap,\r
+ true);\r
+}\r
+\r
+bool\r
+MatrixClientShareMegolmOutSession(\r
+ MatrixClient * client,\r
+ const char * userId,\r
+ const char * deviceId,\r
+ MatrixMegolmOutSession * session)\r
+{\r
+ // generate room key event\r
+ static char eventBuffer[KEY_SHARE_EVENT_LEN];\r
+ sprintf(eventBuffer,\r
+ "{"\r
+ "\"algorithm\":\"m.megolm.v1.aes-sha2\","\r
+ "\"room_id\":\"%s\","\r
+ "\"session_id\":\"%s\","\r
+ "\"session_key\":\"%s\""\r
+ "}",\r
+ session->roomId,\r
+ session->id,\r
+ session->key\r
+ );\r
+\r
+ // send\r
+ MatrixClientSendToDeviceEncrypted(client,\r
+ userId,\r
+ deviceId,\r
+ eventBuffer,\r
+ "m.room_key");\r
+\r
+ return true;\r
+}\r
+\r
+bool\r
+MatrixClientShareMegolmOutSessionTest(\r
+ MatrixClient * client,\r
+ const char * userId,\r
+ const char * deviceId,\r
+ MatrixMegolmOutSession * session)\r
+{\r
+ // generate room key event\r
+ char eventBuffer[KEY_SHARE_EVENT_LEN];\r
+ sprintf(eventBuffer,\r
+ "{"\r
+ "\"algorithm\":\"m.megolm.v1.aes-sha2\","\r
+ "\"room_id\":\"%s\","\r
+ "\"session_id\":\"%s\","\r
+ "\"session_key\":\"%s\""\r
+ "}",\r
+ session->roomId,\r
+ session->id,\r
+ session->key\r
+ );\r
+\r
+ // send\r
+ MatrixClientSendToDevice(client,\r
+ userId,\r
+ deviceId,\r
+ eventBuffer,\r
+ "m.room_key");\r
+\r
+ return true;\r
+}\r
+\r
+bool\r
+MatrixClientGetMegolmOutSession(\r
+ MatrixClient * client,\r
+ const char * roomId,\r
+ MatrixMegolmOutSession ** outSession)\r
+{\r
+ for (int i = 0; i < client->numMegolmOutSessions; i++)\r
+ {\r
+ if (strcmp(client->megolmOutSessions[i].roomId, roomId) == 0)\r
+ {\r
+ *outSession = &client->megolmOutSessions[i];\r
+ return true;\r
+ }\r
+ }\r
+\r
+ return false;\r
+}\r
+\r
+bool\r
+MatrixClientNewMegolmOutSession(\r
+ MatrixClient * client,\r
+ const char * roomId,\r
+ MatrixMegolmOutSession ** outSession)\r
+{\r
+ if (client->numMegolmOutSessions < NUM_MEGOLM_SESSIONS)\r
+ {\r
+ MatrixMegolmOutSession * result =\r
+ &client->megolmOutSessions[client->numMegolmOutSessions];\r
+ \r
+ MatrixMegolmOutSessionInit(result,\r
+ roomId);\r
+\r
+ *outSession = result;\r
+\r
+ client->numMegolmOutSessions++;\r
+\r
+ return true;\r
+ }\r
+\r
+ return false;\r
+}\r
+\r
+bool\r
+MatrixClientGetMegolmInSession(\r
+ MatrixClient * client,\r
+ const char * roomId, int roomIdLen,\r
+ const char * sessionId, int sessionIdLen,\r
+ MatrixMegolmInSession ** outSession)\r
+{\r
+ for (int i = 0; i < client->numMegolmInSessions; i++)\r
+ {\r
+ if (strncmp(client->megolmInSessions[i].roomId, roomId, roomIdLen) == 0 &&\r
+ strncmp(client->megolmInSessions[i].id, sessionId, sessionIdLen) == 0)\r
+ {\r
+ *outSession = &client->megolmInSessions[i];\r
+ return true;\r
+ }\r
+ }\r
+\r
+ return false;\r
+}\r
+\r
+bool\r
+MatrixClientNewMegolmInSession(\r
+ MatrixClient * client,\r
+ const char * roomId,\r
+ const char * sessionId,\r
+ const char * sessionKey,\r
+ MatrixMegolmInSession ** outSession)\r
+{\r
+ if (client->numMegolmInSessions < NUM_MEGOLM_SESSIONS)\r
+ {\r
+ MatrixMegolmInSession * result =\r
+ &client->megolmInSessions[client->numMegolmInSessions];\r
+ \r
+ MatrixMegolmInSessionInit(result,\r
+ roomId,\r
+ sessionId,\r
+ sessionKey, strlen(sessionKey));\r
+ \r
+ *outSession = result;\r
+\r
+ client->numMegolmInSessions++;\r
+\r
+ return true;\r
+ }\r
+\r
+ return false;\r
+}\r
+\r
+bool\r
+MatrixClientRequestMegolmInSession(\r
+ MatrixClient * client,\r
+ const char * roomId,\r
+ const char * sessionId,\r
+ const char * senderKey,\r
+ const char * userId,\r
+ const char * deviceId)\r
+{\r
+ // TODO: cancel requests\r
+ MatrixClientSendDummy(client, userId, deviceId);\r
+\r
+ static char event[ROOMKEY_REQUEST_SIZE];\r
+ snprintf(event, ROOMKEY_REQUEST_SIZE,\r
+ "{"\r
+ "\"action\":\"request\","\r
+ "\"body\":{"\r
+ "\"algorithm\":\"m.megolm.v1.aes-sha2\","\r
+ "\"room_id\":\"%s\","\r
+ "\"sender_key\":\"%s\","\r
+ "\"session_id\":\"%s\""\r
+ "},"\r
+ "\"request_id\":\"%d\","\r
+ "\"requesting_device_id\":\"%s\""\r
+ "}",\r
+ roomId,\r
+ senderKey,\r
+ sessionId,\r
+ time(NULL),\r
+ client->deviceId);\r
+\r
+ \r
+ MatrixClientSendToDevice(client,\r
+ userId,\r
+ deviceId,\r
+ event,\r
+ "m.room_key_request");\r
+\r
+ return true;\r
+}\r
+\r
+bool\r
+MatrixClientGetOlmSessionIn(\r
+ MatrixClient * client,\r
+ const char * userId,\r
+ const char * deviceId,\r
+ const char * encrypted,\r
+ MatrixOlmSession ** outSession)\r
+{\r
+ for (int i = 0; i < client->numOlmSessions; i++)\r
+ {\r
+ if (strcmp(client->olmSessions[i].deviceId, deviceId) == 0)\r
+ {\r
+ *outSession = &client->olmSessions[i];\r
+ return true;\r
+ }\r
+ }\r
+\r
+ if (client->numOlmSessions < NUM_OLM_SESSIONS)\r
+ {\r
+ static char deviceKey[DEVICE_KEY_SIZE];\r
+ MatrixClientRequestDeviceKey(client,\r
+ deviceId,\r
+ deviceKey, DEVICE_KEY_SIZE);\r
+\r
+ MatrixOlmSessionFrom(\r
+ &client->olmSessions[client->numOlmSessions],\r
+ client->olmAccount.account,\r
+ deviceId,\r
+ deviceKey,\r
+ encrypted);\r
+\r
+ *outSession = &client->olmSessions[client->numOlmSessions];\r
+ \r
+ client->numOlmSessions++;\r
+\r
+ return true;\r
+ }\r
+\r
+ return false;\r
+}\r
+\r
+bool\r
+MatrixClientGetOlmSessionOut(\r
+ MatrixClient * client,\r
+ const char * userId,\r
+ const char * deviceId,\r
+ MatrixOlmSession ** outSession)\r
+{\r
+ for (int i = 0; i < client->numOlmSessions; i++)\r
+ {\r
+ if (strcmp(client->olmSessions[i].deviceId, deviceId) == 0)\r
+ {\r
+ *outSession = &client->olmSessions[i];\r
+ return true;\r
+ }\r
+ }\r
+\r
+ if (client->numOlmSessions < NUM_OLM_SESSIONS)\r
+ {\r
+ static char deviceKey[DEVICE_KEY_SIZE];\r
+ MatrixClientRequestDeviceKey(client,\r
+ deviceId,\r
+ deviceKey, DEVICE_KEY_SIZE);\r
+\r
+ char onetimeKey[ONETIME_KEY_SIZE];\r
+ MatrixClientClaimOnetimeKey(client,\r
+ userId,\r
+ deviceId,\r
+ onetimeKey, ONETIME_KEY_SIZE);\r
+\r
+ MatrixOlmSessionTo(\r
+ &client->olmSessions[client->numOlmSessions],\r
+ client->olmAccount.account,\r
+ deviceId,\r
+ deviceKey,\r
+ onetimeKey);\r
+\r
+ *outSession = &client->olmSessions[client->numOlmSessions];\r
+ \r
+ client->numOlmSessions++;\r
+\r
+ return true;\r
+ }\r
+\r
+ return false;\r
+}\r
+\r
+// https://spec.matrix.org/v1.6/client-server-api/#put_matrixclientv3sendtodeviceeventtypetxnid\r
+bool\r
+MatrixClientSendToDevice(\r
+ MatrixClient * client,\r
+ const char * userId,\r
+ const char * deviceId,\r
+ const char * message,\r
+ const char * msgType)\r
+{\r
+ static char requestUrl[MAX_URL_LEN];\r
+ sprintf(requestUrl,\r
+ TODEVICE_URL, msgType, (int)time(NULL));\r
+\r
+ static char eventBuffer[TODEVICE_EVENT_SIZE];\r
+ snprintf(eventBuffer, TODEVICE_EVENT_SIZE,\r
+ "{"\r
+ "\"messages\":{"\r
+ "\"%s\":{"\r
+ "\"%s\":%s"\r
+ "}"\r
+ "}"\r
+ "}",\r
+ userId,\r
+ deviceId,\r
+ message);\r
+\r
+ static char responseBuffer[ROOM_SEND_RESPONSE_SIZE];\r
+ bool result =\r
+ MatrixHttpPut(client,\r
+ requestUrl,\r
+ eventBuffer,\r
+ responseBuffer, ROOM_SEND_RESPONSE_SIZE,\r
+ true);\r
+ \r
+ printf("%s\n", responseBuffer);\r
+ \r
+ return result;\r
+}\r
+\r
+bool\r
+MatrixClientSendToDeviceEncrypted(\r
+ MatrixClient * client,\r
+ const char * userId,\r
+ const char * deviceId,\r
+ const char * message,\r
+ const char * msgType)\r
+{\r
+ // get olm session\r
+ MatrixOlmSession * olmSession;\r
+ MatrixClientGetOlmSessionOut(client, userId, deviceId, &olmSession);\r
+\r
+ // create event json\r
+ char targetDeviceKey[DEVICE_KEY_SIZE];\r
+ MatrixClientRequestDeviceKey(client, deviceId, targetDeviceKey, DEVICE_KEY_SIZE);\r
+ char targetSigningKey[SIGNING_KEY_SIZE];\r
+ MatrixClientRequestSigningKey(client, deviceId, targetSigningKey, SIGNING_KEY_SIZE);\r
+ \r
+ char thisSigningKey[DEVICE_KEY_SIZE];\r
+ MatrixOlmAccountGetSigningKey(&client->olmAccount, thisSigningKey, DEVICE_KEY_SIZE);\r
+\r
+ static char eventBuffer[TODEVICE_EVENT_SIZE];\r
+ sprintf(eventBuffer,\r
+ "{"\r
+ "\"type\":\"%s\","\r
+ "\"content\":%s,"\r
+ "\"sender\":\"%s\","\r
+ "\"recipient\":\"%s\","\r
+ "\"recipient_keys\":{"\r
+ "\"ed25519\":\"%s\""\r
+ "},"\r
+ "\"keys\":{"\r
+ "\"ed25519\":\"%s\""\r
+ "}"\r
+ "}",\r
+ msgType,\r
+ message,\r
+ client->userId,\r
+ userId, // recipient user id\r
+ targetSigningKey, // recipient device key\r
+ thisSigningKey);\r
+\r
+ // encrypt\r
+ static char encryptedBuffer[ENCRYPTED_REQUEST_SIZE];\r
+ MatrixOlmSessionEncrypt(olmSession,\r
+ eventBuffer,\r
+ encryptedBuffer, ENCRYPTED_REQUEST_SIZE);\r
+\r
+ char thisDeviceKey[DEVICE_KEY_SIZE];\r
+ MatrixOlmAccountGetDeviceKey(&client->olmAccount, thisDeviceKey, DEVICE_KEY_SIZE);\r
+\r
+\r
+ static char encryptedEventBuffer[ENCRYPTED_EVENT_SIZE];\r
+ sprintf(encryptedEventBuffer,\r
+ "{"\r
+ "\"algorithm\":\"m.olm.v1.curve25519-aes-sha2\","\r
+ "\"ciphertext\":{"\r
+ "\"%s\":{"\r
+ "\"body\":\"%s\","\r
+ "\"type\":%d"\r
+ "}"\r
+ "},"\r
+ "\"device_id\":\"%s\","\r
+ "\"sender_key\":\"%s\""\r
+ "}",\r
+ targetDeviceKey,\r
+ encryptedBuffer,\r
+ olm_session_has_received_message(olmSession->session),\r
+ client->deviceId,\r
+ thisDeviceKey);\r
+\r
+ // send\r
+ return MatrixClientSendToDevice(\r
+ client,\r
+ userId,\r
+ deviceId,\r
+ encryptedEventBuffer,\r
+ "m.room.encrypted");\r
+}\r
+\r
+bool\r
+MatrixClientSendDummy(\r
+ MatrixClient * client,\r
+ const char * userId,\r
+ const char * deviceId)\r
+{\r
+ return MatrixClientSendToDeviceEncrypted(\r
+ client,\r
+ userId,\r
+ deviceId,\r
+ "{}",\r
+ "m.dummy");\r
+}\r
+\r
+bool\r
+MatrixClientFindDevice(\r
+ MatrixClient * client,\r
+ const char * deviceId,\r
+ MatrixDevice ** outDevice)\r
+{\r
+ MatrixClientRequestDeviceKeys(client);\r
+\r
+ for (int i = 0; i < client->numDevices; i++)\r
+ {\r
+ if (strcmp(client->devices[i].deviceId, deviceId) == 0)\r
+ {\r
+ *outDevice = &client->devices[i];\r
+ return true;\r
+ }\r
+ }\r
+\r
+ *outDevice = NULL;\r
+ return false;\r
+}\r
+\r
+bool\r
+MatrixClientRequestDeviceKey(\r
+ MatrixClient * client,\r
+ const char * deviceId,\r
+ char * outDeviceKey, int outDeviceKeyCap)\r
+{\r
+ MatrixDevice * device;\r
+ \r
+ if (MatrixClientFindDevice(client, deviceId, &device))\r
+ {\r
+ strncpy(outDeviceKey, device->deviceKey, outDeviceKeyCap);\r
+ return true;\r
+ }\r
+\r
+ MatrixClientRequestDeviceKeys(client);\r
+ \r
+ if (MatrixClientFindDevice(client, deviceId, &device))\r
+ {\r
+ strncpy(outDeviceKey, device->deviceKey, outDeviceKeyCap);\r
+ return true;\r
+ }\r
+\r
+ return false;\r
+}\r
+\r
+bool\r
+MatrixClientRequestSigningKey(\r
+ MatrixClient * client,\r
+ const char * deviceId,\r
+ char * outSigningKey, int outSigningKeyCap)\r
+{\r
+ MatrixDevice * device;\r
+ \r
+ if (MatrixClientFindDevice(client, deviceId, &device))\r
+ {\r
+ strncpy(outSigningKey, device->signingKey, outSigningKeyCap);\r
+ return true;\r
+ }\r
+\r
+ MatrixClientRequestDeviceKeys(client);\r
+ \r
+ if (MatrixClientFindDevice(client, deviceId, &device))\r
+ {\r
+ strncpy(outSigningKey, device->signingKey, outSigningKeyCap);\r
+ return true;\r
+ }\r
+\r
+ return false;\r
+}\r
+\r
+// https://spec.matrix.org/v1.6/client-server-api/#post_matrixclientv3keysquery\r
+bool\r
+MatrixClientRequestDeviceKeys(\r
+ MatrixClient * client)\r
+{\r
+ static char userIdEscaped[USER_ID_SIZE];\r
+ JsonEscape(client->userId, strlen(client->userId),\r
+ userIdEscaped, USER_ID_SIZE);\r
+\r
+ static char request[KEYS_QUERY_REQUEST_SIZE];\r
+ snprintf(request, KEYS_QUERY_REQUEST_SIZE,\r
+ "{\"device_keys\":{\"%s\":[]}}", client->userId);\r
+\r
+ static char responseBuffer[KEYS_QUERY_RESPONSE_SIZE];\r
+ bool requestResult = MatrixHttpPost(client,\r
+ KEYS_QUERY_URL,\r
+ request,\r
+ responseBuffer, KEYS_QUERY_RESPONSE_SIZE,\r
+ true);\r
+\r
+ if (! requestResult)\r
+ return false;\r
+\r
+ // query for retrieving device keys for user id\r
+ static char query[JSON_QUERY_SIZE];\r
+ snprintf(query, JSON_QUERY_SIZE,\r
+ "$.device_keys.%s", userIdEscaped);\r
+ \r
+ const char * s;\r
+ int slen;\r
+ mjson_find(responseBuffer, strlen(responseBuffer),\r
+ query, &s, &slen);\r
+ \r
+ // loop over keys\r
+ \r
+ int koff, klen, voff, vlen, vtype, off = 0;\r
+ for (off = 0; (off = mjson_next(s, slen, off, &koff, &klen,\r
+ &voff, &vlen, &vtype)) != 0; ) {\r
+ const char * key = s + koff;\r
+ const char * val = s + voff;\r
+\r
+ // set device id, "key" is the JSON key\r
+ MatrixDevice d;\r
+ snprintf(d.deviceId, DEVICE_ID_SIZE,\r
+ "%.*s", klen-2, key+1);\r
+\r
+ // look for device key in value\r
+ static char deviceKeyQuery[JSON_QUERY_SIZE];\r
+ snprintf(deviceKeyQuery, JSON_QUERY_SIZE,\r
+ "$.keys.curve25519:%s", d.deviceId);\r
+ mjson_get_string(val, vlen,\r
+ deviceKeyQuery, d.deviceKey, DEVICE_KEY_SIZE);\r
\r
- client->accessTokenLen =\r
- mjson_get_string(responseBuffer, responseLen,\r
- "$.access_token",\r
- client->accessTokenBuffer, ACCESS_TOKEN_SIZE);\r
- client->deviceIdLen =\r
- mjson_get_string(responseBuffer, responseLen,\r
- "$.device_id",\r
- client->deviceIdBuffer, DEVICE_ID_SIZE);\r
- client->expireMsLen =\r
- mjson_get_string(responseBuffer, responseLen,\r
- "$.expires_in_ms",\r
- client->expireMsBuffer, EXPIRE_MS_SIZE);\r
- client->refreshTokenLen =\r
- mjson_get_string(responseBuffer, responseLen,\r
- "$.refresh_token",\r
- client->refreshTokenBuffer, REFRESH_TOKEN_SIZE);\r
+ // look for signing key in value\r
+ static char signingKeyQuery[JSON_QUERY_SIZE];\r
+ snprintf(signingKeyQuery, JSON_QUERY_SIZE,\r
+ "$.keys.ed25519:%s", d.deviceId);\r
+ mjson_get_string(val, vlen,\r
+ signingKeyQuery, d.signingKey, SIGNING_KEY_SIZE);\r
+\r
+ // add device\r
+ if (client->numDevices < NUM_DEVICES)\r
+ {\r
+ bool foundDevice = false;\r
+ for (int i = 0; i < client->numDevices; i++)\r
+ if (strcmp(client->devices[i].deviceId, d.deviceId) == 0)\r
+ foundDevice = true;\r
+\r
+ if (! foundDevice) {\r
+ printf("new device: %s %s %s\n", d.deviceId, d.deviceKey, d.signingKey);\r
+ client->devices[client->numDevices] = d;\r
+ client->numDevices++;\r
+ }\r
+ }\r
+ else\r
+ {\r
+ return false;\r
+ }\r
+ }\r
\r
return true;\r
}\r
\r
+bool\r
+MatrixClientDeleteDevice(\r
+ MatrixClient * client)\r
+{\r
+ static char deleteRequest[1024];\r
+ snprintf(deleteRequest, 1024,\r
+ "{\"devices\":[\"%s\"]}",\r
+ client->deviceId);\r
+ static char deleteResponse[1024];\r
+ bool res = MatrixHttpPost(client, "/_matrix/client/v3/delete_devices",\r
+ deleteRequest, deleteResponse, 1024, true);\r
+ return res;\r
+}
\ No newline at end of file
projects / matrix_esp_thesis / blobdiff