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matrix-api.c
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/**
* Interface to the matrix client/server API
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include "matrix-api.h"
/* std lib */
#include <string.h>
/* json-glib */
#include <json-glib/json-glib.h>
#include <http_parser.h>
/* libpurple */
#include <debug.h>
#include <ntlm.h>
#include <libpurple/version.h>
#include "libmatrix.h"
#include "matrix-json.h"
struct _MatrixApiRequestData {
PurpleUtilFetchUrlData *purple_data;
MatrixConnectionData *conn;
MatrixApiCallback callback;
MatrixApiErrorCallback error_callback;
MatrixApiBadResponseCallback bad_response_callback;
gpointer user_data;
};
/**
* Default callback if there was an error calling the API. We just put the
* connection into the "error" state.
*
*/
void matrix_api_error(MatrixConnectionData *conn, gpointer user_data,
const gchar *error_message)
{
if(strcmp(error_message, "cancelled") != 0)
purple_connection_error_reason(conn->pc,
PURPLE_CONNECTION_ERROR_NETWORK_ERROR, error_message);
}
/**
* Default callback if the API returns a non-200 response. We just put the
* connection into the "error" state.
*/
void matrix_api_bad_response(MatrixConnectionData *ma, gpointer user_data,
int http_response_code, JsonNode *json_root)
{
JsonObject *json_obj;
const gchar *errcode = NULL, *error = NULL;
gchar *error_message;
PurpleConnectionError error_reason = PURPLE_CONNECTION_ERROR_OTHER_ERROR;
if(json_root != NULL) {
json_obj = matrix_json_node_get_object(json_root);
errcode = matrix_json_object_get_string_member(json_obj, "errcode");
error = matrix_json_object_get_string_member(json_obj, "error");
}
if(errcode != NULL && error != NULL) {
error_message = g_strdup_printf("%s: %s: %s",
_("Error from home server"), errcode, error);
} else {
error_message = g_strdup_printf("%s: %i",
_("Error from home server"), http_response_code);
}
/* Use a non-fatal error reason on HTTP 429 and 500 to allow auto-reconnection */
if (http_response_code == 429 || http_response_code > 500) {
error_reason = PURPLE_CONNECTION_ERROR_NETWORK_ERROR;
}
purple_connection_error_reason(ma->pc,
error_reason,
error_message);
g_free(error_message);
}
/******************************************************************************
*
* HTTP response parsing
*/
#define HEADER_PARSING_STATE_LAST_WAS_VALUE 0
#define HEADER_PARSING_STATE_LAST_WAS_FIELD 1
typedef struct {
int header_parsing_state;
GString *current_header_name;
GString *current_header_value;
gchar *content_type;
gboolean got_headers;
JsonParser *json_parser;
char *body;
size_t body_len;
} MatrixApiResponseParserData;
/** create a MatrixApiResponseParserData */
static MatrixApiResponseParserData *_response_parser_data_new()
{
MatrixApiResponseParserData *res = g_new0(MatrixApiResponseParserData, 1);
res->header_parsing_state = HEADER_PARSING_STATE_LAST_WAS_VALUE;
res->current_header_name = g_string_new("");
res->current_header_value = g_string_new("");
res->json_parser = json_parser_new();
return res;
}
/** free a MatrixApiResponseParserData */
static void _response_parser_data_free(MatrixApiResponseParserData *data)
{
if(data == NULL)
return;
g_string_free(data->current_header_name, TRUE);
g_string_free(data->current_header_value, TRUE);
g_free(data->content_type);
/* free the JSON parser, and all of the node structures */
if(data -> json_parser)
g_object_unref(data -> json_parser);
g_free(data->body);
data->body = NULL;
g_free(data);
}
static void _handle_header_completed(MatrixApiResponseParserData *response_data)
{
const gchar *name = response_data->current_header_name->str,
*value = response_data->current_header_value->str;
if(*name == '\0') {
/* nothing to do here */
return;
}
if(purple_debug_is_verbose())
purple_debug_info("matrixprpl", "Handling API response header %s: %s\n",
name, value);
if(strcmp(name, "Content-Type") == 0) {
g_free(response_data->content_type);
response_data->content_type = g_strdup(value);
}
}
/**
* callback from the http parser which handles a header name
*/
static int _handle_header_field(http_parser *http_parser, const char *at,
size_t length)
{
MatrixApiResponseParserData *response_data = http_parser->data;
if (response_data->header_parsing_state ==
HEADER_PARSING_STATE_LAST_WAS_VALUE) {
/* starting a new header */
_handle_header_completed(response_data);
g_string_truncate(response_data -> current_header_name, 0);
g_string_truncate(response_data -> current_header_value, 0);
}
g_string_append_len(response_data -> current_header_name, at, length);
response_data->header_parsing_state = HEADER_PARSING_STATE_LAST_WAS_FIELD;
return 0;
}
/**
* callback from the http parser which handles a header value
*/
static int _handle_header_value(http_parser *http_parser, const char *at,
size_t length)
{
MatrixApiResponseParserData *response_data = http_parser->data;
g_string_append_len(response_data -> current_header_value, at, length);
response_data->header_parsing_state = HEADER_PARSING_STATE_LAST_WAS_VALUE;
return 0;
}
static int _handle_headers_complete(http_parser *http_parser)
{
MatrixApiResponseParserData *response_data = http_parser->data;
_handle_header_completed(response_data);
response_data->got_headers = TRUE;
return 0;
}
/**
* callback from the http parser which handles the message body
* Can be called multiple times as we accumulate chunks.
*/
static int _handle_body(http_parser *http_parser, const char *at,
size_t length)
{
MatrixApiResponseParserData *response_data = http_parser->data;
if(purple_debug_is_verbose())
purple_debug_info("matrixprpl", "Handling API response body %.*s\n",
(int)length, at);
response_data->body = g_realloc(response_data->body,
response_data->body_len + length);
memcpy(response_data->body + response_data->body_len, at, length);
response_data->body_len += length;
return 0;
}
/**
* callback from the http parser after all chunks have arrived.
*/
static int _handle_message_complete(http_parser *http_parser)
{
MatrixApiResponseParserData *response_data = http_parser->data;
GError *err = NULL;
if (!response_data->content_type) {
purple_debug_info("matrixprpl", "Missing content type\n");
return 1;
}
if(strcmp(response_data->content_type, "application/json") == 0) {
if(!json_parser_load_from_data(response_data -> json_parser,
response_data->body,
response_data->body_len,
&err)) {
purple_debug_info("matrixprpl", "unable to parse JSON: %s\n",
err->message);
g_error_free(err);
return 1;
}
}
return 0;
}
/**
* The callback we give to purple_util_fetch_url_request - does some
* initial processing of the response
*/
static void matrix_api_complete(PurpleUtilFetchUrlData *url_data,
gpointer user_data,
const gchar *ret_data,
gsize ret_len,
const gchar *error_message)
{
MatrixApiRequestData *data = (MatrixApiRequestData *)user_data;
MatrixApiResponseParserData *response_data = NULL;
int response_code = -1;
JsonNode *root = NULL;
if(error_message) {
purple_debug_warning("matrixprpl", "Error from http request: %s\n",
error_message);
} else if (purple_debug_is_verbose()) {
purple_debug_info("matrixprpl", "Got response: %s\n", ret_data);
}
if(!error_message) {
http_parser http_parser;
http_parser_settings http_parser_settings;
enum http_errno http_error;
memset(&http_parser, 0, sizeof(http_parser));
memset(&http_parser_settings, 0, sizeof(http_parser_settings));
response_data = _response_parser_data_new();
http_parser_settings.on_header_field = _handle_header_field;
http_parser_settings.on_header_value = _handle_header_value;
http_parser_settings.on_headers_complete = _handle_headers_complete;
http_parser_settings.on_body = _handle_body;
http_parser_settings.on_message_complete = _handle_message_complete;
http_parser_init(&http_parser, HTTP_RESPONSE);
http_parser.data = response_data;
http_parser_execute(&http_parser, &http_parser_settings,
ret_data, ret_len);
/* we have to do a separate call to tell the parser that we've got to
* EOF.
*/
http_parser_execute(&http_parser, &http_parser_settings, ret_data, 0);
http_error = HTTP_PARSER_ERRNO(&http_parser);
if(http_error != HPE_OK) {
/* invalid response line */
purple_debug_info("matrixprpl",
"Error (%s) parsing HTTP response %s\n",
http_errno_description(http_error), ret_data);
error_message = _("Invalid response from homeserver");
} else if (!response_data->got_headers) {
/* this will happen if we hit EOF before the end of the headers */
purple_debug_info("matrixprpl",
"EOF before end of HTTP headers in response %s\n",
ret_data);
error_message = _("Invalid response from homeserver");
} else {
response_code = http_parser.status_code;
}
}
if(!error_message) {
root = json_parser_get_root(response_data -> json_parser);
}
if (error_message) {
purple_debug_info("matrixprpl", "Handling error: %s\n", error_message);
(data->error_callback)(data->conn, data->user_data, error_message);
} else if(response_code >= 300) {
purple_debug_info("matrixprpl", "API gave response %i\n",
response_code);
(data->bad_response_callback)(data->conn, data->user_data,
response_code, root);
} else if (data->callback) {
(data->callback)(data->conn, data->user_data, root,
response_data->body, response_data->body_len,
response_data->content_type );
}
_response_parser_data_free(response_data);
g_free(data);
}
/******************************************************************************
*
* API entry points
*/
/*
* Add proxy authentication headers to a request
*/
static void _add_proxy_auth_headers(GString *request_str, PurpleProxyInfo *gpi)
{
const char *username, *password;
char *t1, *t2, *ntlm_type1;
const gchar *hostname;
username = purple_proxy_info_get_username(gpi);
password = purple_proxy_info_get_password(gpi);
if (username == NULL)
return;
hostname = g_get_host_name();
t1 = g_strdup_printf("%s:%s", username, password ? password : "");
t2 = purple_base64_encode((const guchar *)t1, strlen(t1));
g_free(t1);
ntlm_type1 = purple_ntlm_gen_type1(hostname, "");
g_string_append_printf(request_str,
"Proxy-Authorization: Basic %s\r\n"
"Proxy-Authorization: NTLM %s\r\n"
"Proxy-Connection: Keep-Alive\r\n",
t2, ntlm_type1);
g_free(ntlm_type1);
g_free(t2);
}
/**
* parse a URL as much as we need
*
* @param url url to be parsed
* @param host returns a pointer to the start of the hostname, or NULL if none
* @param path returns a pointer to the start of the path
*/
static void _parse_url(const gchar *url, const gchar **host, const gchar **path)
{
const gchar *ptr;
/* find the separator between the host and the path */
/* first find the end of the scheme */
ptr = url;
while(*ptr != ':' && *ptr != '/' && *ptr != '\0')
ptr++;
if(*ptr != ':') {
/* no scheme, so presumably no hostname - it's a relative path */
*host = NULL;
*path = ptr;
return;
}
/* the url has a scheme, which implies it also has a hostname */
ptr++;
while(*ptr == '/')
ptr++;
*host = ptr;
/* skip the rest of the hostname. The path starts at the next /. */
while(*ptr != '/' && *ptr != '\0')
ptr++;
*path = ptr;
}
/**
* We have to build our own HTTP requests because:
* - libpurple only supports GET
* - libpurple's purple_url_parse assumes that the path + querystring is
* shorter than 256 bytes.
*
* @returns a GString* which should be freed
*/
static GString *_build_request(PurpleAccount *acct, const gchar *url,
const gchar *method, const gchar *extra_headers,
const gchar *body,
const gchar *extra_data, gsize extra_len)
{
PurpleProxyInfo *gpi = purple_proxy_get_setup(acct);
GString *request_str = g_string_new(NULL);
const gchar *url_host, *url_path;
gboolean using_http_proxy = FALSE;
if(gpi != NULL) {
PurpleProxyType type = purple_proxy_info_get_type(gpi);
using_http_proxy = (type == PURPLE_PROXY_USE_ENVVAR
|| type == PURPLE_PROXY_HTTP);
}
_parse_url(url, &url_host, &url_path);
/* we only support absolute URLs (with schemes) */
g_assert(url_host != NULL);
/* If we are connecting via a proxy, we should put the whole url
* in the request line. (But synapse chokes if we do that on a direct
* connection.)
*/
g_string_append_printf(request_str, "%s %s HTTP/1.1\r\n",
method, using_http_proxy ? url : url_path);
g_string_append_printf(request_str, "Host: %.*s\r\n",
(int)(url_path-url_host), url_host);
if (extra_headers != NULL)
g_string_append(request_str, extra_headers);
g_string_append(request_str, "Connection: close\r\n");
g_string_append_printf(request_str, "Content-Length: %" G_GSIZE_FORMAT "\r\n",
extra_len + (body == NULL ? 0 : strlen(body)));
if(using_http_proxy)
_add_proxy_auth_headers(request_str, gpi);
g_string_append(request_str, "\r\n");
if(body != NULL)
g_string_append(request_str, body);
if(extra_data != NULL)
g_string_append_len(request_str, extra_data, extra_len);
return request_str;
}
/**
* Start an HTTP call to the API
*
* @param method HTTP method (eg "GET")
* @param extra_headers Extra HTTP headers to add
* @param body body of request, or NULL if none
* @param extra_data raw binary data to be sent after the body
* @param extra_len The length of the raw binary data
* @param max_len maximum number of bytes to return from the request. -1 for
* default (512K).
*
* @returns handle for the request, or NULL if the request couldn't be started
* (eg, invalid hostname). In this case, the error_callback will have
* been called already.
* Note: extra_data/extra_len is only available on libpurple >=2.11.0
*/
static MatrixApiRequestData *matrix_api_start_full(const gchar *url,
const gchar *method, const gchar *extra_headers,
const gchar *body,
const gchar *extra_data, gsize extra_len,
MatrixConnectionData *conn,
MatrixApiCallback callback, MatrixApiErrorCallback error_callback,
MatrixApiBadResponseCallback bad_response_callback,
gpointer user_data, gssize max_len)
{
MatrixApiRequestData *data;
GString *request;
PurpleUtilFetchUrlData *purple_data;
if (error_callback == NULL)
error_callback = matrix_api_error;
if (bad_response_callback == NULL)
bad_response_callback = matrix_api_bad_response;
/* _build_request assumes the url is absolute, so enforce that here */
if(!g_str_has_prefix(url, "http://") &&
!g_str_has_prefix(url, "https://")) {
gchar *error_msg;
error_msg = g_strdup_printf(_("Invalid homeserver URL %s"), url);
error_callback(conn, user_data, error_msg);
g_free(error_msg);
return NULL;
}
#if !PURPLE_VERSION_CHECK(2,11,0)
if (extra_len) {
gchar *error_msg;
error_msg = g_strdup_printf(_("Feature not available on old purple version"));
error_callback(conn, user_data, error_msg);
g_free(error_msg);
return NULL;
}
#endif
request = _build_request(conn->pc->account, url, method, extra_headers,
body, extra_data, extra_len);
if(purple_debug_is_unsafe())
purple_debug_info("matrixprpl", "request %s\n", request->str);
data = g_new0(MatrixApiRequestData, 1);
data->conn = conn;
data->callback = callback;
data->error_callback = error_callback;
data->bad_response_callback = bad_response_callback;
data->user_data = user_data;
#if PURPLE_VERSION_CHECK(2,11,0)
purple_data = purple_util_fetch_url_request_data_len_with_account(
conn -> pc -> account,
url, FALSE, NULL, TRUE, request->str, request->len,
TRUE, max_len, matrix_api_complete,
data);
#else
purple_data = purple_util_fetch_url_request_len_with_account(
conn -> pc -> account,
url, FALSE, NULL, TRUE, request->str, TRUE,
max_len, matrix_api_complete,
data);
#endif
if(purple_data == NULL) {
/* we couldn't start the request. In this case, our callback will
* already have been called, which will have freed data.
*/
data = NULL;
} else {
data->purple_data = purple_data;
}
g_string_free(request, TRUE);
return data;
}
/**
* Start an HTTP call to the API; lighter version of matrix_api_start_full
* since most callers don't need the extras.
*
* @param method HTTP method (eg "GET")
* @param body body of request, or NULL if none
* @param max_len maximum number of bytes to return from the request. -1 for
* default (512K).
*
* @returns handle for the request, or NULL if the request couldn't be started
* (eg, invalid hostname). In this case, the error_callback will have
* been called already.
*/
static MatrixApiRequestData *matrix_api_start(const gchar *url,
const gchar *method, const gchar *body,
MatrixConnectionData *conn,
MatrixApiCallback callback, MatrixApiErrorCallback error_callback,
MatrixApiBadResponseCallback bad_response_callback,
gpointer user_data, gssize max_len)
{
return matrix_api_start_full(url, method, NULL, body, NULL, 0, conn,
callback, error_callback, bad_response_callback,
user_data, max_len);
}
void matrix_api_cancel(MatrixApiRequestData *data)
{
if(data -> purple_data != NULL)
purple_util_fetch_url_cancel(data -> purple_data);
data -> purple_data = NULL;
(data->error_callback)(data->conn, data->user_data, "cancelled");
g_free(data);
}
gchar *_build_login_body(const gchar *username, const gchar *password, const gchar *device_id)
{
JsonObject *body, *ident;
JsonNode *node;
JsonGenerator *generator;
gchar *result;
body = json_object_new();
json_object_set_string_member(body, "type", "m.login.password");
ident = json_object_new();
/* TODO: Support 3pid rather than username */
json_object_set_string_member(ident, "type", "m.id.user");
json_object_set_string_member(ident, "user", username);
json_object_set_object_member(body, "identifier", ident);
json_object_set_string_member(body, "password", password);
json_object_set_string_member(body, "initial_device_display_name", "purple-matrix");
if (device_id != NULL)
json_object_set_string_member(body, "device_id", device_id);
node = json_node_new(JSON_NODE_OBJECT);
json_node_set_object(node, body);
json_object_unref(body);
generator = json_generator_new();
json_generator_set_root(generator, node);
result = json_generator_to_data(generator, NULL);
g_object_unref(G_OBJECT(generator));
json_node_free(node);
return result;
}
MatrixApiRequestData *matrix_api_password_login(MatrixConnectionData *conn,
const gchar *username,
const gchar *password,
const gchar *device_id,
MatrixApiCallback callback,
gpointer user_data)
{
gchar *url, *json;
MatrixApiRequestData *fetch_data;
purple_debug_info("matrixprpl", "logging in %s\n", username);
url = g_strconcat(conn->homeserver, "_matrix/client/r0/login",
NULL);
json = _build_login_body(username, password, device_id);
fetch_data = matrix_api_start(url, "POST", json, conn, callback,
NULL, NULL, user_data, 0);
g_free(json);
g_free(url);
return fetch_data;
}
MatrixApiRequestData *matrix_api_sync(MatrixConnectionData *conn,
const gchar *since, int timeout, gboolean full_state,
MatrixApiCallback callback,
MatrixApiErrorCallback error_callback,
MatrixApiBadResponseCallback bad_response_callback,
gpointer user_data)
{
GString *url;
MatrixApiRequestData *fetch_data;
url = g_string_new(conn->homeserver);
g_string_append_printf(url,
"_matrix/client/r0/sync?access_token=%s&timeout=%i",
purple_url_encode(conn->access_token), timeout);
if(since != NULL)
g_string_append_printf(url, "&since=%s", purple_url_encode(since));
if(full_state)
g_string_append(url, "&full_state=true");
purple_debug_info("matrixprpl", "syncing %s since %s (full_state=%i)\n",
conn->pc->account->username, since, full_state);
/* XXX: stream the response, so that we don't need to allocate so much
* memory? But it's JSON
*/
fetch_data = matrix_api_start(url->str, "GET", NULL, conn, callback,
error_callback, bad_response_callback, user_data, 40*1024*1024);
g_string_free(url, TRUE);
return fetch_data;
}
MatrixApiRequestData *matrix_api_send(MatrixConnectionData *conn,
const gchar *room_id, const gchar *event_type, const gchar *txn_id,
JsonObject *content, MatrixApiCallback callback,
MatrixApiErrorCallback error_callback,
MatrixApiBadResponseCallback bad_response_callback,
gpointer user_data)
{
GString *url;
MatrixApiRequestData *fetch_data;
JsonNode *body_node;
JsonGenerator *generator;
gchar *json;
/* purple_url_encode uses a single static buffer, so we have to build up
* the url gradually
*/
url = g_string_new(conn->homeserver);
g_string_append(url, "_matrix/client/r0/rooms/");
g_string_append(url, purple_url_encode(room_id));
g_string_append(url, "/send/");
g_string_append(url, purple_url_encode(event_type));
g_string_append(url, "/");
g_string_append(url, purple_url_encode(txn_id));
g_string_append(url, "?access_token=");
g_string_append(url, purple_url_encode(conn->access_token));
body_node = json_node_new(JSON_NODE_OBJECT);
json_node_set_object(body_node, content);
generator = json_generator_new();
json_generator_set_root(generator, body_node);
json = json_generator_to_data(generator, NULL);
g_object_unref(G_OBJECT(generator));
json_node_free(body_node);
purple_debug_info("matrixprpl", "sending %s on %s\n", event_type, room_id);
fetch_data = matrix_api_start(url->str, "PUT", json, conn, callback,
error_callback, bad_response_callback,
user_data, 0);
g_free(json);
g_string_free(url, TRUE);
return fetch_data;
}
void matrix_api_invite_user(MatrixConnectionData *conn,
const gchar *room_id,
const gchar *who,
MatrixApiCallback callback,
MatrixApiErrorCallback error_callback,
MatrixApiBadResponseCallback bad_response_callback,
gpointer user_data)
{
GString *url;
JsonNode *body_node;
JsonGenerator *generator;
gchar *json;
JsonObject *invitee;
invitee = json_object_new();
json_object_set_string_member(invitee, "user_id", who);
url = g_string_new(conn->homeserver);
g_string_append(url, "_matrix/client/r0/rooms/");
g_string_append(url, purple_url_encode(room_id));
g_string_append(url, "/invite?access_token=");
g_string_append(url, purple_url_encode(conn->access_token));
body_node = json_node_new(JSON_NODE_OBJECT);
json_node_set_object(body_node, invitee);
generator = json_generator_new();
json_generator_set_root(generator, body_node);
json = json_generator_to_data(generator, NULL);
g_object_unref(G_OBJECT(generator));
json_node_free(body_node);
purple_debug_info("matrixprpl", "sending an invite on %s\n", room_id);
matrix_api_start(url->str, "POST", json, conn, callback,
error_callback, bad_response_callback,
user_data, 0);
g_free(json);
g_string_free(url, TRUE);
json_object_unref(invitee);
}
MatrixApiRequestData *matrix_api_join_room(MatrixConnectionData *conn,
const gchar *room,
MatrixApiCallback callback,
MatrixApiErrorCallback error_callback,
MatrixApiBadResponseCallback bad_response_callback,
gpointer user_data)
{
GString *url;
MatrixApiRequestData *fetch_data;
url = g_string_new(conn->homeserver);
g_string_append(url, "_matrix/client/r0/join/");
g_string_append(url, purple_url_encode(room));
g_string_append(url, "?access_token=");
g_string_append(url, purple_url_encode(conn->access_token));
purple_debug_info("matrixprpl", "joining %s\n", room);
fetch_data = matrix_api_start(url->str, "POST", "{}", conn, callback,
error_callback, bad_response_callback,
user_data, 0);
g_string_free(url, TRUE);
return fetch_data;
}
MatrixApiRequestData *matrix_api_typing(MatrixConnectionData *conn,
const gchar *room_id, gboolean typing,
gint typing_timeout, MatrixApiCallback callback,
MatrixApiErrorCallback error_callback,
MatrixApiBadResponseCallback bad_response_callback,
gpointer user_data)
{
GString *url;
MatrixApiRequestData *fetch_data;
JsonNode *body_node;
JsonGenerator *generator;
gchar *json;
JsonObject *content;
/* purple_url_encode uses a single static buffer, so we have to build up
* the url gradually
*/
url = g_string_new(conn->homeserver);
g_string_append(url, "_matrix/client/r0/rooms/");
g_string_append(url, purple_url_encode(room_id));
g_string_append(url, "/typing/");
g_string_append(url, purple_url_encode(conn->user_id));
g_string_append(url, "?access_token=");
g_string_append(url, purple_url_encode(conn->access_token));
body_node = json_node_new(JSON_NODE_OBJECT);
content = json_object_new();
json_object_set_boolean_member(content, "typing", typing);
if (typing == TRUE) {
json_object_set_int_member(content, "timeout", typing_timeout);
}
json_node_set_object(body_node, content);
generator = json_generator_new();
json_generator_set_root(generator, body_node);
json = json_generator_to_data(generator, NULL);
g_object_unref(G_OBJECT(generator));
json_node_free(body_node);
purple_debug_info("matrixprpl", "typing in %s\n", room_id);
fetch_data = matrix_api_start(url->str, "PUT", json, conn, callback,
error_callback, bad_response_callback,
user_data, 0);
g_free(json);
g_string_free(url, TRUE);
json_object_unref(content);
return fetch_data;
}
MatrixApiRequestData *matrix_api_leave_room(MatrixConnectionData *conn,
const gchar *room_id,
MatrixApiCallback callback,
MatrixApiErrorCallback error_callback,
MatrixApiBadResponseCallback bad_response_callback,
gpointer user_data)
{
GString *url;
MatrixApiRequestData *fetch_data;
url = g_string_new(conn->homeserver);
g_string_append(url, "_matrix/client/r0/rooms/");
g_string_append(url, purple_url_encode(room_id));
g_string_append(url, "/leave?access_token=");
g_string_append(url, purple_url_encode(conn->access_token));
purple_debug_info("matrixprpl", "leaving %s\n", room_id);
fetch_data = matrix_api_start(url->str, "POST", "{}", conn, callback,
error_callback, bad_response_callback,
user_data, 0);
g_string_free(url, TRUE);
return fetch_data;
}
/**
* Upload a file
*
* @param conn The connection with which to make the request
* @param ctype Content type of file
* @param data Raw data content of file
* @param data_len Length of the data
* @param callback Function to be called when the request completes
* @param user_data Opaque data to be passed to the callback
*/
MatrixApiRequestData *matrix_api_upload_file(MatrixConnectionData *conn,
const gchar *ctype, const gchar *data, gsize data_len,
MatrixApiCallback callback,
MatrixApiErrorCallback error_callback,
MatrixApiBadResponseCallback bad_response_callback,
gpointer user_data)
{
GString *url, *extra_header;
MatrixApiRequestData *fetch_data;
url = g_string_new(conn->homeserver);
g_string_append(url, "_matrix/media/r0/upload");
g_string_append(url, "?access_token=");
g_string_append(url, purple_url_encode(conn->access_token));
extra_header = g_string_new("Content-Type: ");
g_string_append(extra_header, ctype);
g_string_append(extra_header, "\r\n");
fetch_data = matrix_api_start_full(url->str, "POST", extra_header->str, "",
data, data_len, conn,
callback, error_callback, bad_response_callback, user_data, 0);
g_string_free(url, TRUE);
g_string_free(extra_header, TRUE);
return fetch_data;
}
GString *get_download_url(const gchar *homeserver, const gchar *uri)
{
GString *url;
/* Sanity check the uri - TODO: Add more sanity */
if (strncmp(uri, "mxc://", 6)) {
return NULL;
}
url = g_string_new(homeserver);
g_string_append(url, "_matrix/media/r0/download/");
g_string_append(url, uri + 6); /* i.e. after the mxc:// */
return url;
}
/**
* Download a file
* @param uri URI string in the form mxc://example.com/unique
*/
MatrixApiRequestData *matrix_api_download_file(MatrixConnectionData *conn,
const gchar *uri,
gsize max_size,
MatrixApiCallback callback,
MatrixApiErrorCallback error_callback,
MatrixApiBadResponseCallback bad_response_callback,
gpointer user_data)
{
GString *url;
MatrixApiRequestData *fetch_data;
url = get_download_url(conn->homeserver, uri);
if (!url) {
error_callback(conn, user_data, "bad media uri");
return NULL;
}
/* I'd like to validate the headers etc a bit before downloading the
* data (maybe using _handle_header_completed), also I'm not convinced
* purple always does sane things on over-size.
*/
fetch_data = matrix_api_start(url->str, "GET", NULL, conn, callback,
error_callback, bad_response_callback, user_data, max_size);
g_string_free(url, TRUE);
return fetch_data;
}
/**
* Download a thumbnail for a file
* @param uri URI string in the form mxc://example.com/unique
*/
MatrixApiRequestData *matrix_api_download_thumb(MatrixConnectionData *conn,
const gchar *uri,
gsize max_size,
unsigned int width, unsigned int height, gboolean scale,
MatrixApiCallback callback,
MatrixApiErrorCallback error_callback,
MatrixApiBadResponseCallback bad_response_callback,
gpointer user_data)
{
GString *url;
MatrixApiRequestData *fetch_data;
char tmp[64];
/* Sanity check the uri - TODO: Add more sanity */