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librocketchat.c
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/*
* Rocket.Chat plugin for libpurple
* Copyright (C) 2016 Eion Robb
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
// Glib
#include <glib.h>
#if !GLIB_CHECK_VERSION(2, 32, 0)
#define g_hash_table_contains(hash_table, key) g_hash_table_lookup_extended(hash_table, key, NULL, NULL)
#endif /* 2.32.0 */
#if !GLIB_CHECK_VERSION(2, 68, 0) && !PURPLE_VERSION_CHECK(2, 14, 2)
#define g_memdump2 g_memdump
#endif
static gboolean
g_str_insensitive_equal(gconstpointer v1, gconstpointer v2)
{
return (g_ascii_strcasecmp(v1, v2) == 0);
}
static guint
g_str_insensitive_hash(gconstpointer v)
{
guint hash;
gchar *lower_str = g_ascii_strdown(v, -1);
hash = g_str_hash(lower_str);
g_free(lower_str);
return hash;
}
// GNU C libraries
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef __GNUC__
#include <unistd.h>
#endif
#include <errno.h>
#include <json-glib/json-glib.h>
// Supress overzealous json-glib 'critical errors'
#define json_object_has_member(JSON_OBJECT, MEMBER) \
(JSON_OBJECT ? json_object_has_member(JSON_OBJECT, MEMBER) : FALSE)
#define json_object_get_int_member(JSON_OBJECT, MEMBER) \
(json_object_has_member(JSON_OBJECT, MEMBER) ? json_object_get_int_member(JSON_OBJECT, MEMBER) : 0)
#define json_object_get_string_member(JSON_OBJECT, MEMBER) \
(json_object_has_member(JSON_OBJECT, MEMBER) ? json_object_get_string_member(JSON_OBJECT, MEMBER) : NULL)
#define json_object_get_array_member(JSON_OBJECT, MEMBER) \
(json_object_has_member(JSON_OBJECT, MEMBER) ? json_object_get_array_member(JSON_OBJECT, MEMBER) : NULL)
#define json_object_get_object_member(JSON_OBJECT, MEMBER) \
(json_object_has_member(JSON_OBJECT, MEMBER) ? json_object_get_object_member(JSON_OBJECT, MEMBER) : NULL)
#define json_object_get_boolean_member(JSON_OBJECT, MEMBER) \
(json_object_has_member(JSON_OBJECT, MEMBER) ? json_object_get_boolean_member(JSON_OBJECT, MEMBER) : FALSE)
#define json_array_get_length(JSON_ARRAY) \
(JSON_ARRAY ? json_array_get_length(JSON_ARRAY) : 0)
// static void
// json_array_foreach_element_reverse (JsonArray *array,
// JsonArrayForeach func,
// gpointer data)
// {
// gint i;
// g_return_if_fail (array != NULL);
// g_return_if_fail (func != NULL);
// for (i = json_array_get_length(array) - 1; i >= 0; i--)
// {
// JsonNode *element_node;
// element_node = json_array_get_element(array, i);
// (* func) (array, i, element_node, data);
// }
// }
#include <purple.h>
#if PURPLE_VERSION_CHECK(3, 0, 0)
#include <http.h>
#endif
#ifndef PURPLE_PLUGINS
# define PURPLE_PLUGINS
#endif
#ifndef _
# define _(a) (a)
# define N_(a) (a)
#endif
#define ROCKETCHAT_PLUGIN_ID "prpl-eionrobb-rocketchat"
#ifndef ROCKETCHAT_PLUGIN_VERSION
#define ROCKETCHAT_PLUGIN_VERSION "0.1"
#endif
#define ROCKETCHAT_PLUGIN_WEBSITE "https://github.com/EionRobb/purple-rocketchat"
#define ROCKETCHAT_USERAGENT "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36"
#define ROCKETCHAT_BUFFER_DEFAULT_SIZE 40960
#define RC_DEFAULT_SERVER ""
#define RC_SERVER_SPLIT_CHAR '|'
// Purple2 compat functions
#if !PURPLE_VERSION_CHECK(3, 0, 0)
#define purple_connection_error purple_connection_error_reason
#define purple_connection_get_protocol purple_connection_get_prpl
#define PURPLE_CONNECTION_CONNECTING PURPLE_CONNECTING
#define PURPLE_CONNECTION_CONNECTED PURPLE_CONNECTED
#define PURPLE_CONNECTION_FLAG_HTML PURPLE_CONNECTION_HTML
#define PURPLE_CONNECTION_FLAG_NO_BGCOLOR PURPLE_CONNECTION_NO_BGCOLOR
#define PURPLE_CONNECTION_FLAG_NO_FONTSIZE PURPLE_CONNECTION_NO_FONTSIZE
#define PURPLE_CONNECTION_FLAG_NO_IMAGES PURPLE_CONNECTION_NO_IMAGES
#define purple_connection_set_flags(pc, f) ((pc)->flags = (f))
#define purple_connection_get_flags(pc) ((pc)->flags)
#define purple_blist_find_group purple_find_group
#define purple_protocol_get_id purple_plugin_get_id
#define PurpleProtocolChatEntry struct proto_chat_entry
#define PurpleChatConversation PurpleConvChat
#define PurpleIMConversation PurpleConvIm
static inline PurpleConvChat * purple_conversations_find_chat_with_account(const char * name, const PurpleAccount * account)
{
PurpleConversation * conv = purple_find_conversation_with_account(PURPLE_CONV_TYPE_CHAT, name, account);
return conv == NULL ? NULL : PURPLE_CONV_CHAT(conv);
}
#define purple_chat_conversation_has_left purple_conv_chat_has_left
#define PurpleConversationUpdateType PurpleConvUpdateType
#define PURPLE_CONVERSATION_UPDATE_UNSEEN PURPLE_CONV_UPDATE_UNSEEN
#define PURPLE_IS_IM_CONVERSATION(conv) (purple_conversation_get_type(conv) == PURPLE_CONV_TYPE_IM)
#define PURPLE_IS_CHAT_CONVERSATION(conv) (purple_conversation_get_type(conv) == PURPLE_CONV_TYPE_CHAT)
#define PURPLE_CONVERSATION(chatorim) ((chatorim) == NULL ? NULL : (chatorim)->conv)
#define PURPLE_IM_CONVERSATION(conv) PURPLE_CONV_IM(conv)
#define PURPLE_CHAT_CONVERSATION(conv) PURPLE_CONV_CHAT(conv)
#define purple_conversation_present_error purple_conv_present_error
#define purple_serv_got_joined_chat(pc, id, name) PURPLE_CONV_CHAT(serv_got_joined_chat(pc, id, name))
#define purple_conversations_find_chat(pc, id) PURPLE_CONV_CHAT(purple_find_chat(pc, id))
#define purple_serv_got_chat_in serv_got_chat_in
#define purple_chat_conversation_add_user purple_conv_chat_add_user
#define purple_chat_conversation_add_users purple_conv_chat_add_users
#define purple_chat_conversation_remove_user purple_conv_chat_remove_user
#define purple_chat_conversation_get_topic purple_conv_chat_get_topic
#define purple_chat_conversation_set_topic purple_conv_chat_set_topic
#define PurpleChatUserFlags PurpleConvChatBuddyFlags
#define PURPLE_CHAT_USER_NONE PURPLE_CBFLAGS_NONE
#define PURPLE_CHAT_USER_OP PURPLE_CBFLAGS_OP
#define PURPLE_CHAT_USER_FOUNDER PURPLE_CBFLAGS_FOUNDER
#define PURPLE_CHAT_USER_TYPING PURPLE_CBFLAGS_TYPING
#define PURPLE_CHAT_USER_AWAY PURPLE_CBFLAGS_AWAY
#define PURPLE_CHAT_USER_HALFOP PURPLE_CBFLAGS_HALFOP
#define PURPLE_CHAT_USER_VOICE PURPLE_CBFLAGS_VOICE
#define PURPLE_CHAT_USER_TYPING PURPLE_CBFLAGS_TYPING
#define PurpleChatUser PurpleConvChatBuddy
static inline PurpleChatUser *
purple_chat_conversation_find_user(PurpleChatConversation *chat, const char *name)
{
PurpleChatUser *cb = purple_conv_chat_cb_find(chat, name);
if (cb != NULL) {
g_dataset_set_data(cb, "chat", chat);
}
return cb;
}
#define purple_chat_user_get_flags(cb) purple_conv_chat_user_get_flags(g_dataset_get_data((cb), "chat"), (cb)->name)
#define purple_chat_user_set_flags(cb, f) purple_conv_chat_user_set_flags(g_dataset_get_data((cb), "chat"), (cb)->name, (f))
#define purple_chat_user_set_alias(cb, a) (g_free((cb)->alias), (cb)->alias = g_strdup(a))
#define PurpleIMTypingState PurpleTypingState
#define PURPLE_IM_NOT_TYPING PURPLE_NOT_TYPING
#define PURPLE_IM_TYPING PURPLE_TYPING
#define PURPLE_IM_TYPED PURPLE_TYPED
#define purple_conversation_get_connection purple_conversation_get_gc
#define purple_conversation_write_system_message(conv, message, flags) purple_conversation_write((conv), NULL, (message), ((flags) | PURPLE_MESSAGE_SYSTEM), time(NULL))
#define purple_chat_conversation_get_id purple_conv_chat_get_id
#define PURPLE_CMD_FLAG_PROTOCOL_ONLY PURPLE_CMD_FLAG_PRPL_ONLY
#define PURPLE_IS_BUDDY PURPLE_BLIST_NODE_IS_BUDDY
#define PURPLE_IS_CHAT PURPLE_BLIST_NODE_IS_CHAT
#define purple_chat_get_name_only purple_chat_get_name
#define purple_blist_find_buddy purple_find_buddy
#define purple_serv_got_alias serv_got_alias
#define purple_account_set_private_alias purple_account_set_alias
#define purple_account_get_private_alias purple_account_get_alias
#define purple_protocol_got_user_status purple_prpl_got_user_status
#define purple_serv_got_im serv_got_im
#define purple_serv_got_typing serv_got_typing
#define purple_conversations_find_im_with_account(name, account) \
PURPLE_CONV_IM(purple_find_conversation_with_account(PURPLE_CONV_TYPE_IM, name, account))
#define purple_im_conversation_new(account, from) PURPLE_CONV_IM(purple_conversation_new(PURPLE_CONV_TYPE_IM, account, from))
#define PurpleMessage PurpleConvMessage
#define purple_message_set_time(msg, time) ((msg)->when = (time))
#define purple_conversation_write_message(conv, msg) purple_conversation_write(conv, msg->who, msg->what, msg->flags, msg->when)
static inline PurpleMessage *
purple_message_new_outgoing(const gchar *who, const gchar *contents, PurpleMessageFlags flags)
{
PurpleMessage *message = g_new0(PurpleMessage, 1);
message->who = g_strdup(who);
message->what = g_strdup(contents);
message->flags = flags;
message->when = time(NULL);
return message;
}
static inline void
purple_message_destroy(PurpleMessage *message)
{
g_free(message->who);
g_free(message->what);
g_free(message);
}
#define purple_message_get_recipient(message) (message->who)
#define purple_message_get_contents(message) (message->what)
#define purple_account_privacy_deny_add purple_privacy_deny_add
#define purple_account_privacy_deny_remove purple_privacy_deny_remove
#define PurpleHttpConnection PurpleUtilFetchUrlData
#define purple_buddy_set_name purple_blist_rename_buddy
#else
// Purple3 helper functions
#define purple_conversation_set_data(conv, key, value) g_object_set_data(G_OBJECT(conv), key, value)
#define purple_conversation_get_data(conv, key) g_object_get_data(G_OBJECT(conv), key)
#define purple_message_destroy g_object_unref
#define purple_chat_user_set_alias(cb, alias) g_object_set((cb), "alias", (alias), NULL)
#define purple_chat_get_alias(chat) g_object_get_data(G_OBJECT(chat), "alias")
#endif
typedef struct {
PurpleAccount *account;
PurpleConnection *pc;
PurpleSslConnection *websocket;
int inpa;
int fd;
GHashTable *cookie_table;
gchar *session_token;
gchar *channel;
gchar *self_user;
gchar *self_user_id;
gint64 last_message_timestamp;
gint64 last_load_last_message_timestamp;
gchar *username;
gchar *server;
gchar *websocket_server;
gchar *path;
gboolean tls;
gchar *http_str;
gboolean websocket_header_received;
gboolean sync_complete;
guchar packet_code;
gchar *frame;
guint64 frame_len;
guint64 frame_len_progress;
gint64 id; //incrementing counter
GHashTable *one_to_ones; // A store of known room_id's -> username's
GHashTable *one_to_ones_rev; // A store of known usernames's -> room_id's
GHashTable *group_chats; // A store of known multi-user room_id's -> room name's
GHashTable *group_chats_rev; // A store of known multi-user room name's -> room_id's
GHashTable *sent_message_ids; // A store of message id's that we generated from this instance
GHashTable *result_callbacks; // Result ID -> Callback function
GHashTable *usernames_to_ids; // username -> user id
GHashTable *ids_to_usernames; // user id -> username
GQueue *received_message_queue; // A store of the last 10 received message id's for de-dup
GSList *http_conns; /**< PurpleHttpConnection to be cancelled on logout */
gint frames_since_reconnect;
GSList *pending_writes;
} RocketChatAccount;
typedef void (*RocketChatProxyCallbackFunc)(RocketChatAccount *ya, JsonNode *node, gpointer user_data, JsonObject *error);
typedef struct {
RocketChatAccount *ya;
RocketChatProxyCallbackFunc callback;
gpointer user_data;
GDestroyNotify user_data_destroy_func;
} RocketChatProxyConnection;
//#include <mkdio.h>
extern char markdown_version[];
int mkd_line(char *, int, char **, int);
#define MKD_NOLINKS 0x00000001 /* don't do link processing, block <a> tags */
#define MKD_NOIMAGE 0x00000002 /* don't do image processing, block <img> */
#define MKD_NOPANTS 0x00000004 /* don't run smartypants() */
#define MKD_NOHTML 0x00000008 /* don't allow raw html through AT ALL */
#define MKD_STRICT 0x00000010 /* disable SUPERSCRIPT, RELAXED_EMPHASIS */
#define MKD_TAGTEXT 0x00000020 /* process text inside an html tag; no
* <em>, no <bold>, no html or [] expansion */
#define MKD_NO_EXT 0x00000040 /* don't allow pseudo-protocols */
#define MKD_NOEXT MKD_NO_EXT /* ^^^ (aliased for user convenience) */
#define MKD_CDATA 0x00000080 /* generate code for xml ![CDATA[...]] */
#define MKD_NOSUPERSCRIPT 0x00000100 /* no A^B */
#define MKD_NORELAXED 0x00000200 /* emphasis happens /everywhere/ */
#define MKD_NOTABLES 0x00000400 /* disallow tables */
#define MKD_NOSTRIKETHROUGH 0x00000800 /* forbid ~~strikethrough~~ */
#define MKD_TOC 0x00001000 /* do table-of-contents processing */
#define MKD_1_COMPAT 0x00002000 /* compatibility with MarkdownTest_1.0 */
#define MKD_AUTOLINK 0x00004000 /* make http://foo.com link even without <>s */
#define MKD_SAFELINK 0x00008000 /* paranoid check for link protocol */
#define MKD_NOHEADER 0x00010000 /* don't process header blocks */
#define MKD_TABSTOP 0x00020000 /* expand tabs to 4 spaces */
#define MKD_NODIVQUOTE 0x00040000 /* forbid >%class% blocks */
#define MKD_NOALPHALIST 0x00080000 /* forbid alphabetic lists */
#define MKD_NODLIST 0x00100000 /* forbid definition lists */
#define MKD_EXTRA_FOOTNOTE 0x00200000 /* enable markdown extra-style footnotes */
#define MKD_NOSTYLE 0x00400000 /* don't extract <style> blocks */
#define MKD_NODLDISCOUNT 0x00800000 /* disable discount-style definition lists */
#define MKD_DLEXTRA 0x01000000 /* enable extra-style definition lists */
#define MKD_FENCEDCODE 0x02000000 /* enabled fenced code blocks */
#define MKD_IDANCHOR 0x04000000 /* use id= anchors for TOC links */
#define MKD_GITHUBTAGS 0x08000000 /* allow dash and underscore in element names */
#define MKD_URLENCODEDANCHOR 0x10000000 /* urlencode non-identifier chars instead of replacing with dots */
#define MKD_LATEX 0x40000000 /* handle embedded LaTeX escapes */
#define MKD_EMBED MKD_NOLINKS|MKD_NOIMAGE|MKD_TAGTEXT
static gchar *
rc_markdown_to_html(const gchar *markdown)
{
static char *markdown_str = NULL;
int markdown_len;
int flags = MKD_NOPANTS | MKD_NODIVQUOTE | MKD_NODLIST;
static gboolean markdown_version_checked = FALSE;
static gboolean markdown_version_safe = FALSE;
if (markdown == NULL) {
return NULL;
}
if (!markdown_version_checked) {
gchar **markdown_version_split = g_strsplit_set( markdown_version, ". ", -1);
gchar *last_part;
guint i = 0;
do {
last_part = markdown_version_split[i++];
} while (markdown_version_split[i] != NULL);
if (!purple_strequal(last_part, "DEBUG")) {
markdown_version_safe = TRUE;
} else {
gint major, minor, micro;
major = atoi(markdown_version_split[0]);
if (major > 2) {
markdown_version_safe = TRUE;
} else if (major == 2) {
minor = atoi(markdown_version_split[1]);
if (minor > 2) {
markdown_version_safe = TRUE;
} else if (minor == 2) {
micro = atoi(markdown_version_split[2]);
if (micro > 2) {
markdown_version_safe = TRUE;
}
}
}
}
g_strfreev(markdown_version_split);
markdown_version_checked = TRUE;
}
if (markdown_str != NULL) {
// if libmarkdown is pre-2.2.2 and we're using amalloc, don't free()
if (markdown_version_safe) {
free(markdown_str);
}
}
markdown_len = mkd_line((char *)markdown, strlen(markdown), &markdown_str, flags);
if (markdown_len < 0) {
return NULL;
}
return g_strndup(markdown_str, markdown_len);
}
static void
rc_markup_anchor_parse_text(GMarkupParseContext *context, const gchar *text, gsize text_len, gpointer user_data, GError **error)
{
GString *output = user_data;
g_string_prepend_len(output, text, text_len);
}
static GMarkupParser rc_markup_anchor_parser = {
NULL,
NULL,
rc_markup_anchor_parse_text,
NULL,
NULL
};
static void
rc_markdown_parse_start_element(GMarkupParseContext *context, const gchar *element_name, const gchar **attribute_names, const gchar **attribute_values, gpointer user_data, GError **error)
{
GString *output = user_data;
switch(g_str_hash(element_name)) {
case 0x2b607: case 0x2b5e7: //B
g_string_append(output, "**");
break;
case 0x2b60e: case 0x2b5ee: //I
case 0x5977b7: case 0x597377: //EM
g_string_append_c(output, '_');
break;
case 0x597759: case 0x597319: //BR
g_string_append_c(output, '\n');
break;
case 0xb8869ba: case 0xb87dd5a: //DEL
case 0x2b618: case 0x2b5f8: //S
case 0x1c93af97: case 0xcf9972d7: //STRIKE
g_string_append(output, "~~");
break;
case 0x2b606: case 0x2b5e6: //A
{
const gchar **name_cursor = attribute_names;
const gchar **value_cursor = attribute_values;
GString *href_string = g_string_new("](");
while (*name_cursor) {
if (g_ascii_strncasecmp(*name_cursor, "href", -1) == 0) {
g_string_append(href_string, *value_cursor);
break;
}
name_cursor++;
value_cursor++;
}
g_string_append_c(output, '[');
g_markup_parse_context_push(context, &rc_markup_anchor_parser, href_string);
break;
}
}
}
static void
rc_markdown_parse_end_element(GMarkupParseContext *context, const gchar *element_name, gpointer user_data, GError **error)
{
GString *output = user_data;
switch(g_str_hash(element_name)) {
case 0x2b607: case 0x2b5e7: //B
g_string_append(output, "**");
break;
case 0x2b60e: case 0x2b5ee: //I
case 0x5977b7: case 0x597377: //EM
g_string_append_c(output, '_');
break;
case 0xb8869ba: case 0xb87dd5a: //DEL
case 0x2b618: case 0x2b5f8: //S
case 0x1c93af97: case 0xcf9972d7: //STRIKE
g_string_append(output, "~~");
break;
case 0x2b606: case 0x2b5e6: //A
{
GString *href_string = g_markup_parse_context_pop(context);
g_string_append_printf(output, "%s)", href_string->str);
g_string_free(href_string, TRUE);
break;
}
}
}
static void
rc_markdown_parse_text(GMarkupParseContext *context, const gchar *text, gsize text_len, gpointer user_data, GError **error)
{
GString *output = user_data;
g_string_append_len(output, text, text_len);
}
static GMarkupParser rc_markup_markdown_parser = {
rc_markdown_parse_start_element,
rc_markdown_parse_end_element,
rc_markdown_parse_text,
NULL,
NULL
};
static gchar *
rc_html_to_markdown(const gchar *html)
{
GString *output = g_string_new(NULL);
GMarkupParseContext *context;
context = g_markup_parse_context_new(&rc_markup_markdown_parser, G_MARKUP_TREAT_CDATA_AS_TEXT, output, NULL);
g_markup_parse_context_parse(context, "<html>", -1, NULL);
g_markup_parse_context_parse(context, html, -1, NULL);
g_markup_parse_context_parse(context, "</html>", -1, NULL);
g_markup_parse_context_end_parse(context, NULL);
g_markup_parse_context_free(context);
return g_string_free(output, FALSE);
}
// static gchar *
// purple_base32_encode(const guchar *data, gsize len)
// {
// static const char base32_alphabet[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
// char *out, *rv;
// guchar work[5];
// g_return_val_if_fail(data != NULL, NULL);
// g_return_val_if_fail(len > 0, NULL);
// rv = out = g_malloc(((len / 5) + 1) * 8 + 1);
// for (; len; len -= MIN(5, len))
// {
// memset(work, 0, 5);
// memcpy(work, data, MIN(5, len));
// *out++ = base32_alphabet[work[0] >> 3];
// *out++ = base32_alphabet[((work[0] & 0x07) << 2) | (work[1] >> 6)];
// *out++ = base32_alphabet[(work[1] >> 1) & 0x1f];
// *out++ = base32_alphabet[((work[1] & 0x01) << 4) | (work[2] >> 4)];
// *out++ = base32_alphabet[((work[2] & 0x0f) << 1) | (work[3] >> 7)];
// *out++ = base32_alphabet[(work[3] >> 2) & 0x1f];
// *out++ = base32_alphabet[((work[3] & 0x03) << 3) | (work[4] >> 5)];
// *out++ = base32_alphabet[work[4] & 0x1f];
// data += MIN(5, len);
// }
// *out = '\0';
// return rv;
// }
static const gchar *
rc_get_next_id_str(RocketChatAccount *ya) {
static gchar *next_id = NULL;
g_free(next_id);
next_id = g_strdup_printf("%" G_GINT64_FORMAT, ya->id++);
return next_id;
}
static const gchar *
rc_get_next_id_str_callback(RocketChatAccount *ya, RocketChatProxyCallbackFunc callback, gpointer user_data, GDestroyNotify user_data_destroy_func)
{
const gchar *id = rc_get_next_id_str(ya);
RocketChatProxyConnection *proxy = g_new0(RocketChatProxyConnection, 1);
proxy->ya = ya;
proxy->callback = callback;
proxy->user_data = user_data;
proxy->user_data_destroy_func = user_data_destroy_func;
g_hash_table_insert(ya->result_callbacks, g_strdup(id), proxy);
return id;
}
gchar *
rc_string_get_chunk(const gchar *haystack, gsize len, const gchar *start, const gchar *end)
{
const gchar *chunk_start, *chunk_end;
g_return_val_if_fail(haystack && start && end, NULL);
if (len > 0) {
chunk_start = g_strstr_len(haystack, len, start);
} else {
chunk_start = strstr(haystack, start);
}
g_return_val_if_fail(chunk_start, NULL);
chunk_start += strlen(start);
if (len > 0) {
chunk_end = g_strstr_len(chunk_start, len - (chunk_start - haystack), end);
} else {
chunk_end = strstr(chunk_start, end);
}
g_return_val_if_fail(chunk_end, NULL);
return g_strndup(chunk_start, chunk_end - chunk_start);
}
#if PURPLE_VERSION_CHECK(3, 0, 0)
static void
rc_update_cookies(RocketChatAccount *ya, const GList *cookie_headers)
{
const gchar *cookie_start;
const gchar *cookie_end;
gchar *cookie_name;
gchar *cookie_value;
const GList *cur;
for (cur = cookie_headers; cur != NULL; cur = g_list_next(cur))
{
cookie_start = cur->data;
cookie_end = strchr(cookie_start, '=');
cookie_name = g_strndup(cookie_start, cookie_end-cookie_start);
cookie_start = cookie_end + 1;
cookie_end = strchr(cookie_start, ';');
cookie_value= g_strndup(cookie_start, cookie_end-cookie_start);
cookie_start = cookie_end;
g_hash_table_replace(ya->cookie_table, cookie_name, cookie_value);
}
}
#else
static void
rc_update_cookies(RocketChatAccount *ya, const gchar *headers)
{
const gchar *cookie_start;
const gchar *cookie_end;
gchar *cookie_name;
gchar *cookie_value;
int header_len;
g_return_if_fail(headers != NULL);
header_len = strlen(headers);
/* look for the next "Set-Cookie: " */
/* grab the data up until ';' */
cookie_start = headers;
while ((cookie_start = strstr(cookie_start, "\r\nSet-Cookie: ")) && (cookie_start - headers) < header_len)
{
cookie_start += 14;
cookie_end = strchr(cookie_start, '=');
cookie_name = g_strndup(cookie_start, cookie_end-cookie_start);
cookie_start = cookie_end + 1;
cookie_end = strchr(cookie_start, ';');
cookie_value= g_strndup(cookie_start, cookie_end-cookie_start);
cookie_start = cookie_end;
g_hash_table_replace(ya->cookie_table, cookie_name, cookie_value);
}
}
#endif
static void
rc_cookie_foreach_cb(gchar *cookie_name, gchar *cookie_value, GString *str)
{
g_string_append_printf(str, "%s=%s;", cookie_name, cookie_value);
}
static gchar *
rc_cookies_to_string(RocketChatAccount *ya)
{
GString *str;
str = g_string_new(NULL);
g_hash_table_foreach(ya->cookie_table, (GHFunc)rc_cookie_foreach_cb, str);
return g_string_free(str, FALSE);
}
size_t rc_sock_read(RocketChatAccount *ya, gpointer sock, void *buf, size_t len)
{
if (ya->tls) {
return purple_ssl_read(sock, buf, len);
}
g_return_val_if_fail(ya->fd > 0, -1);
return read(ya->fd, buf, len);
}
// modeled after libpurple/jabber.c:js_do_send()
static int rc_sock_write(RocketChatAccount *ya, void *data, int len) {
int ret;
if (ya->tls)
ret = purple_ssl_write(ya->websocket, data, len);
else
ret = write(ya->fd, data, len);
return ret;
}
static void
rc_response_callback(PurpleHttpConnection *http_conn,
#if PURPLE_VERSION_CHECK(3, 0, 0)
PurpleHttpResponse *response, gpointer user_data)
{
gsize len;
const gchar *url_text = purple_http_response_get_data(response, &len);
const gchar *error_message = purple_http_response_get_error(response);
#else
gpointer user_data, const gchar *url_text, gsize len, const gchar *error_message)
{
#endif
const gchar *body;
gsize body_len;
RocketChatProxyConnection *conn = user_data;
JsonParser *parser = json_parser_new();
conn->ya->http_conns = g_slist_remove(conn->ya->http_conns, http_conn);
#if !PURPLE_VERSION_CHECK(3, 0, 0)
rc_update_cookies(conn->ya, url_text);
body = g_strstr_len(url_text, len, "\r\n\r\n");
body = body ? body + 4 : body;
body_len = len - (body - url_text);
#else
rc_update_cookies(conn->ya, purple_http_response_get_headers_by_name(response, "Set-Cookie"));
body = url_text;
body_len = len;
#endif
if (body == NULL && error_message != NULL) {
//connection error - unersolvable dns name, non existing server
gchar *error_msg_formatted = g_strdup_printf(_("Connection error: %s."), error_message);
purple_connection_error(conn->ya->pc, PURPLE_CONNECTION_ERROR_NETWORK_ERROR, error_msg_formatted);
g_free(error_msg_formatted);
goto out;
}
#if !PURPLE_VERSION_CHECK(3, 0, 0)
else {
/* Purple 2.x doesn't check for the http status to be successful so let's
* do that here quick.
* Borrowed and then adapted from purple2compat http.c
*/
if (!error_message) {
gsize header_len = (body + 4 - url_text);
gchar header[header_len];
g_strlcpy(header, url_text, header_len);
gchar** header_by_word = g_strsplit_set(header, " ", 2);
gint code = -1;
sscanf(header_by_word[1], "%d", &code);
g_strfreev(header_by_word);
if (!(code <= 0 || code / 100 == 2)) {
gchar *error_msg_formatted = g_strdup_printf(
_("Connection error: Invalid HTTP response code (%d)."),
code);
purple_connection_error(conn->ya->pc,
PURPLE_CONNECTION_ERROR_NETWORK_ERROR,
error_msg_formatted);
g_free(error_msg_formatted);
goto out;
}
}
}
#endif
if (body != NULL && !json_parser_load_from_data(parser, body, body_len, NULL)) {
//purple_debug_error("rocketchat", "Error parsing response: %s\n", body);
if (conn->callback) {
JsonNode *dummy_node = json_node_new(JSON_NODE_OBJECT);
JsonObject *dummy_object = json_object_new();
json_node_set_object(dummy_node, dummy_object);
json_object_set_string_member(dummy_object, "body", body);
json_object_set_int_member(dummy_object, "len", body_len);
g_dataset_set_data(dummy_node, "raw_body", (gpointer) body);
conn->callback(conn->ya, dummy_node, conn->user_data, NULL);
g_dataset_destroy(dummy_node);
json_node_free(dummy_node);
json_object_unref(dummy_object);
}
} else {
JsonNode *root = json_parser_get_root(parser);
purple_debug_misc("rocketchat", "Got response: %s\n", body);
if (conn->callback) {
conn->callback(conn->ya, root, conn->user_data, NULL);
}
}
out:
g_object_unref(parser);
g_free(conn);
return;
}
static void
rc_fetch_url(RocketChatAccount *ya, const gchar *url, const gchar *postdata, RocketChatProxyCallbackFunc callback, gpointer user_data)
{
PurpleAccount *account;
RocketChatProxyConnection *conn;
gchar *cookies;
PurpleHttpConnection *http_conn;
account = ya->account;
if (purple_account_is_disconnected(account)) return;
conn = g_new0(RocketChatProxyConnection, 1);
conn->ya = ya;
conn->callback = callback;
conn->user_data = user_data;
cookies = rc_cookies_to_string(ya);
purple_debug_info("rocketchat", "Fetching url %s\n", url);
#if PURPLE_VERSION_CHECK(3, 0, 0)
PurpleHttpRequest *request = purple_http_request_new(url);
if (!purple_strequal(ya->websocket_server, ya->server)) {
purple_http_request_header_set(request, "Host", ya->websocket_server);
purple_debug_misc("rocketchat" , "Proxy enabled, sending %s instead of %s\n",
host, ya->server);
}
purple_http_request_header_set(request, "Accept", "*/*");
purple_http_request_header_set(request, "User-Agent", ROCKETCHAT_USERAGENT);
purple_http_request_header_set(request, "Cookie", cookies);
if (ya->session_token && *ya->session_token) {
purple_http_request_header_set(request, "X-Auth-Token", ya->session_token);
}
if (ya->self_user_id && *ya->self_user_id) {
purple_http_request_header_set(request, "X-User-Id", ya->self_user_id);
}
if (postdata) {
purple_debug_info("rocketchat", "With postdata %s\n", postdata);
if (postdata[0] == '{') {
purple_http_request_header_set(request, "Content-Type", "application/json");
} else {
purple_http_request_header_set(request, "Content-Type", "application/x-www-form-urlencoded");
}
purple_http_request_set_contents(request, postdata, -1);
}
http_conn = purple_http_request(ya->pc, request, rc_response_callback, conn);
purple_http_request_unref(request);
if (http_conn != NULL)
ya->http_conns = g_slist_prepend(ya->http_conns, http_conn);
#else
GString *headers;
gchar *host = NULL, *path = NULL, *user = NULL, *password = NULL;
int port;
purple_url_parse(url, &host, &port, &path, &user, &password);
headers = g_string_new(NULL);
if (!purple_strequal(ya->websocket_server, ya->server)) {
host = g_strdup(ya->websocket_server);
purple_debug_misc("rocketchat" , "Proxy enabled, sending %s instead of %s\n",
host, ya->server);
}
//Use the full 'url' until libpurple can handle path's longer than 256 chars
g_string_append_printf(headers, "%s /%s HTTP/1.0\r\n", (postdata ? "POST" : "GET"), path);
//g_string_append_printf(headers, "%s %s HTTP/1.0\r\n", (postdata ? "POST" : "GET"), url);
g_string_append_printf(headers, "Connection: close\r\n");
g_string_append_printf(headers, "Host: %s\r\n", host);
g_string_append_printf(headers, "Accept: */*\r\n");
g_string_append_printf(headers, "User-Agent: " ROCKETCHAT_USERAGENT "\r\n");
g_string_append_printf(headers, "Cookie: %s\r\n", cookies);
if (ya->session_token && *ya->session_token) {
g_string_append_printf(headers, "X-Auth-Token: %s\r\n", ya->session_token);
}
if (ya->self_user_id && *ya->self_user_id) {
g_string_append_printf(headers, "X-User-Id: %s\r\n", ya->self_user_id);
}
if (postdata) {
purple_debug_info("rocketchat", "With postdata %s\n", postdata);
if (postdata[0] == '{') {
g_string_append(headers, "Content-Type: application/json\r\n");
} else {
g_string_append(headers, "Content-Type: application/x-www-form-urlencoded\r\n");
}
g_string_append_printf(headers, "Content-Length: %" G_GSIZE_FORMAT "\r\n", strlen(postdata));
g_string_append(headers, "\r\n");
g_string_append(headers, postdata);
} else {
g_string_append(headers, "\r\n");
}
g_free(host);
g_free(path);
g_free(user);
g_free(password);
http_conn = purple_util_fetch_url_request_len_with_account(ya->account, url, FALSE, ROCKETCHAT_USERAGENT, TRUE, headers->str, TRUE, 6553500, rc_response_callback, conn);
if (http_conn != NULL)
ya->http_conns = g_slist_prepend(ya->http_conns, http_conn);
g_string_free(headers, TRUE);
#endif
g_free(cookies);
}
static void rc_join_room(RocketChatAccount *ya, const gchar *room_id);
static void rc_socket_write_json(RocketChatAccount *ya, JsonObject *data);
static GHashTable *rc_chat_info_defaults(PurpleConnection *pc, const char *chatname);
static void rc_mark_room_messages_read(RocketChatAccount *ya, const gchar *room_id);
static void rc_account_connected(RocketChatAccount *ya, JsonNode *node, gpointer user_data, JsonObject *error);
static void rc_login_response(RocketChatAccount *ya, JsonNode *node, gpointer user_data, JsonObject *error);
static void rc_got_users_presence(RocketChatAccount *ya, JsonNode *node, gpointer user_data, JsonObject *error);
static void
rc_set_two_factor_auth_code_cb(gpointer data, const gchar *twofactorcode)
{
RocketChatAccount *ya = data;
if (twofactorcode && *twofactorcode) {
//re-login, slightly different format to regular login
JsonArray *params = json_array_new();
JsonObject *param = json_object_new();
JsonObject *totp = json_object_new();
JsonObject *login = json_object_new();
JsonObject *user = json_object_new();
JsonObject *password = json_object_new();
JsonObject *response = json_object_new();
gchar *digest;
// Start a brand new login
if (strchr(ya->username, '@')) {
json_object_set_string_member(user, "email", ya->username);
} else {
json_object_set_string_member(user, "username", ya->username);
}
digest = g_compute_checksum_for_string(G_CHECKSUM_SHA256, purple_connection_get_password(ya->pc), -1);
json_object_set_string_member(password, "digest", digest);
json_object_set_string_member(password, "algorithm", "sha-256");
g_free(digest);
json_object_set_object_member(login, "user", user);
json_object_set_object_member(login, "password", password);
json_object_set_object_member(totp, "login", login);
json_object_set_string_member(totp, "code", twofactorcode);
json_object_set_object_member(param, "totp", totp);
json_array_add_object_element(params, param);
json_object_set_string_member(response, "msg", "method");
json_object_set_string_member(response, "method", "login");
json_object_set_array_member(response, "params", params);
json_object_set_string_member(response, "id", rc_get_next_id_str_callback(ya, rc_login_response, NULL, NULL));
rc_socket_write_json(ya, response);
} else {
purple_connection_error_reason(ya->pc, PURPLE_CONNECTION_ERROR_AUTHENTICATION_FAILED,
"Could not authenticate two-factor code.");
}
}
static void
rc_login_response(RocketChatAccount *ya, JsonNode *node, gpointer user_data, JsonObject *error)
{
JsonObject *response;
if (node == NULL) {
const gchar *error_msg = json_object_get_string_member(error, "error");
if (purple_strequal(error_msg, "totp-required")) {