Merge pull request #13 from AkselMeola/master
[mirrors/libpurple-core-answerscripts.git] / answerscripts.c
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10a3ed03 1#define _GNU_SOURCE
73f7c2ff 2//#define __WIN32__
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3#ifndef __WIN32__
4 #define ANSWERSCRIPT_EXT ""
5#else
6 #define ANSWERSCRIPT_EXT ".exe"
7#endif
8#define ANSWERSCRIPT "answerscripts" ANSWERSCRIPT_EXT
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9#define ANSWERSCRIPTS_TIMEOUT_INTERVAL 250
10#define ANSWERSCRIPTS_LINE_LENGTH 4096
0636d441 11#define ENV_PREFIX "ANSW_"
2bcad731 12#define PROTOCOL_PREFIX "prpl-"
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13
14#include <stdio.h>
15#include <stdlib.h>
81749a99 16#include <errno.h>
2bcad731 17#include <string.h>
b44d7b66 18
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19#ifndef __WIN32__
20 #include <fcntl.h>
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21#else
22 #include <windows.h>
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23#endif
24
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25/* Purple plugin */
26#define PURPLE_PLUGINS
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27#include <libpurple/account.h>
28#include <libpurple/blist.h>
53478f8c 29#include <libpurple/conversation.h>
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30#include <libpurple/core.h>
31#include <libpurple/debug.h>
53478f8c 32#include <libpurple/plugin.h>
10a3ed03 33#include <libpurple/savedstatuses.h>
53478f8c 34#include <libpurple/signals.h>
10a3ed03 35#include <libpurple/status.h>
53478f8c 36#include <libpurple/util.h>
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37#include <libpurple/value.h>
38#include <libpurple/version.h>
73f7c2ff 39
ca489436 40char *message = NULL;
b44d7b66 41char *hook_script = NULL;
b44d7b66 42
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43typedef struct {
44 FILE *pipe;
45 PurpleConversation *conv;
46} answerscripts_job;
47
10a3ed03 48const void *check_null(const void *pointer) {
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49 if(pointer == NULL) {
50 fprintf(stderr, "NULL pointer detected in answerscripts!\n");
51 return "";
52 }
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53 return pointer;
54}
55
81749a99 56int answerscripts_process_message_cb(answerscripts_job *job) {
64ac1ebf 57 int i;
acd3f9c2 58 char response[ANSWERSCRIPTS_LINE_LENGTH+1]; response[0]='\0';
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59 FILE *pipe = job->pipe;
60 PurpleConversation *conv = job->conv;
61
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62 if (pipe && !feof(pipe)) {
63 if(!fgets(response, ANSWERSCRIPTS_LINE_LENGTH, pipe)
b86255fd 64 && (errno == EWOULDBLOCK || errno == EAGAIN) //WARNING! Not compatible with windows :-(
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65 ) return 1;
66
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67 for(i=0;response[i];i++) if(response[i]=='\n') response[i]='\0';
68 if(response[0]!='\0') {
69 if(purple_conversation_get_type(conv) == PURPLE_CONV_TYPE_CHAT) {
70 purple_conv_chat_send(purple_conversation_get_chat_data(conv), response);
71 } else {
72 purple_conv_im_send(purple_conversation_get_im_data(conv), response);
73 }
74 }
81749a99 75 if(!feof(pipe)) return 1;
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76 }
77 pclose(pipe);
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78 free(job);
79 return 0;
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80}
81
2b2d1564 82static char received_msg_cb(PurpleAccount *account, char *who, char *buffer, PurpleConversation *conv, PurpleMessageFlags flags, void *data) {
73f7c2ff 83 if (conv == NULL) conv = purple_conversation_new(PURPLE_CONV_TYPE_IM, account, who); //* A workaround to avoid skipping of the first message as a result on NULL-conv: */
15117484 84
6b8234e8 85 PurpleBuddy *buddy = purple_find_buddy(account, who);
e2bf984e 86 PurplePresence *presence = purple_buddy_get_presence(buddy);
b44d7b66 87
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88 //Get message
89 message = purple_markup_strip_html(buffer);
b44d7b66 90
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91 //Get conversation type
92 const char *action, *roomname;
93 switch(purple_conversation_get_type(conv)) {
94 case PURPLE_CONV_TYPE_IM:
95 action = "IM";
96 roomname = "";
97 break;
98 case PURPLE_CONV_TYPE_CHAT:
99 action = "CHAT";
100 roomname = purple_conversation_get_name(conv);
101 //PurpleConvChat *chat = purple_conversation_get_chat_data(conv);
102 break;
103 default:
104 action = "UNKNOWN";
105 }
106
96150021 107 //LOCAL USER:
96150021 108 const char* local_name = (char *) purple_account_get_name_for_display(account);
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109 const char* local_alias = purple_account_get_alias(account);
110 if(local_alias == NULL) local_alias = local_name;
111
5cd90c72 112 //Do not respond to messages sent by myself
25fb4d26 113 if (flags & PURPLE_MESSAGE_SEND) return 0;
5cd90c72 114
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115 //Was my nick said?
116 char *highlighted;
117 if(flags & PURPLE_MESSAGE_NICK || purple_utf8_has_word(buffer, local_name))
118 highlighted = "true";
119 else
120 highlighted = "false";
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121
122 //REMOTE USER (Buddy):
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123
124 //Get buddy alias
125 const char* remote_alias = purple_buddy_get_alias(buddy);
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126 if(remote_alias == NULL) remote_alias = who;
127 //if(remote_alias == NULL) remote_alias = "";
c77055a9 128
6b8234e8 129 //Get buddy group
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130 PurpleGroup *group = purple_buddy_get_group(buddy);
131 const char *from_group = group != NULL ? purple_group_get_name(group) : ""; //return empty string if not in group
6b8234e8 132
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133 //Get protocol ID
134 const char *protocol_id = purple_account_get_protocol_id(account);
5b15396b 135 if(!strncmp(protocol_id,PROTOCOL_PREFIX,strlen(PROTOCOL_PREFIX))) protocol_id += strlen(PROTOCOL_PREFIX); //trim out PROTOCOL_PREFIX (eg.: "prpl-irc" => "irc")
2bcad731 136
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137 //Get status
138 PurpleStatus *status = purple_account_get_active_status(account);
139 PurpleStatusType *type = purple_status_get_type(status);
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140 //remote
141 PurpleStatus *r_status = purple_presence_get_active_status(presence);
142 PurpleStatusType *r_status_type = purple_status_get_type(r_status);
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143
144 //Get status id
145 const char *status_id = NULL;
146 status_id = purple_primitive_get_id_from_type(purple_status_type_get_primitive(type));
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147 //remote
148 const char *r_status_id = NULL;
149 r_status_id = purple_primitive_get_id_from_type(purple_status_type_get_primitive(r_status_type));
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150
151 //Get status message
152 const char *status_msg = NULL;
153 if (purple_status_type_get_attr(type, "message") != NULL) {
10a3ed03 154 status_msg = check_null(purple_status_get_attr_string(status, "message"));
7a45e05c 155 } else {
10a3ed03 156 status_msg = (char *) check_null(purple_savedstatus_get_message(purple_savedstatus_get_current()));
7a45e05c 157 }
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158 //remote
159 const char *r_status_msg = NULL;
160 if (purple_status_type_get_attr(r_status_type, "message") != NULL) {
10a3ed03 161 r_status_msg = check_null(purple_status_get_attr_string(r_status, "message"));
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162 } else {
163 r_status_msg = "";
164 }
7a45e05c 165
ca489436 166 //Export variables to environment
15117484 167 setenv(ENV_PREFIX "ACTION", action, 1); //what happend: IM/CHAT/UNKNOWN, show setting dialog, event, etc...
7f54aeea 168 setenv(ENV_PREFIX "MSG", message, 1); //text of the message
15117484 169 setenv(ENV_PREFIX "MSG_HIGHLIGHTED", highlighted, 1); //was my nick mentioned in message? true/false
7f54aeea 170 setenv(ENV_PREFIX "PROTOCOL", protocol_id, 1); //protocol used to deliver the message. eg.: xmpp, irc,...
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171 setenv(ENV_PREFIX "R_NAME", who, 1); //ID of remote user - "buddy"
172 setenv(ENV_PREFIX "R_GROUP", from_group, 1); //group which contains that buddy OR empty string
15117484 173 setenv(ENV_PREFIX "R_ALIAS", remote_alias, 1); //buddy's OPTIONAL alias, server alias, contact alias, username OR empty string
973a91a2 174 setenv(ENV_PREFIX "R_STATUS", r_status_id, 1); //unique ID of remote user's status. eg.: available, away,...
15117484 175 setenv(ENV_PREFIX "R_ROOM_NAME", roomname, 1); //Chatroom name
973a91a2 176 setenv(ENV_PREFIX "R_STATUS_MSG", r_status_msg, 1); //status message set by your buddy
b1866b8c 177 setenv(ENV_PREFIX "L_NAME", local_name, 1); //ID of local user
15117484 178 setenv(ENV_PREFIX "L_ALIAS", local_alias, 1); //OPTIONAL alias of local user OR empty string
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179 setenv(ENV_PREFIX "L_STATUS", status_id, 1); //unique ID of local user's status. eg.: available, away,...
180 setenv(ENV_PREFIX "L_STATUS_MSG", status_msg, 1); //status message set by local user
6ec3c19f 181
ca489436 182 //Launch job on background
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183 answerscripts_job *job = (answerscripts_job*) malloc(sizeof(answerscripts_job));
184 job->pipe = popen(hook_script, "r");
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185 if(job->pipe == NULL) {
186 fprintf(stderr,"Can't execute %s\n", hook_script);
2b2d1564 187 return 0;
d94bfdb4 188 }
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189 job->conv = conv;
190
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191 #ifndef __WIN32__
192 int fflags = fcntl(fileno(job->pipe), F_GETFL, 0);
193 fcntl(fileno(job->pipe), F_SETFL, fflags | O_NONBLOCK);
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194 #else
195 //WARNING! Somehow implement FILE_FLAG_OVERLAPPED & FILE_FLAG_NO_BUFFERING support on windows
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196 #endif
197
198 purple_timeout_add(ANSWERSCRIPTS_TIMEOUT_INTERVAL, (GSourceFunc) answerscripts_process_message_cb, (gpointer) job);
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199
200 return 0;
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201}
202
b44d7b66 203static gboolean plugin_load(PurplePlugin * plugin) {
6ec3c19f 204 asprintf(&hook_script,"%s/%s",purple_user_dir(),ANSWERSCRIPT);
b44d7b66 205 void *conv_handle = purple_conversations_get_handle();
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206 //purple_signal_connect(conv_handle, "receiving-im-msg", plugin, PURPLE_CALLBACK(received_msg_cb), NULL);
207 //purple_signal_connect(conv_handle, "receiving-chat-msg", plugin, PURPLE_CALLBACK(received_msg_cb), NULL);
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208 purple_signal_connect(conv_handle, "received-im-msg", plugin, PURPLE_CALLBACK(received_msg_cb), NULL);
209 purple_signal_connect(conv_handle, "received-chat-msg", plugin, PURPLE_CALLBACK(received_msg_cb), NULL);
53478f8c 210 return TRUE;
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211}
212
213static gboolean plugin_unload(PurplePlugin * plugin) {
214 free(hook_script);
53478f8c 215 return TRUE;
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216}
217
218static PurplePluginInfo info = {
219 PURPLE_PLUGIN_MAGIC,
220 PURPLE_MAJOR_VERSION,
221 PURPLE_MINOR_VERSION,
222 PURPLE_PLUGIN_STANDARD,
223 NULL,
224 0,
225 NULL,
226 PURPLE_PRIORITY_DEFAULT,
227
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228 "core-answerscripts",
229 "AnswerScripts",
9b2bdf34 230 "0.5.4",
53478f8c 231 "Framework for hooking scripts to process received messages for libpurple clients",
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232 "\nThis plugin will execute script \"~/.purple/" ANSWERSCRIPT "\" "
233 "(or any other executable called \"" ANSWERSCRIPT "\" and found in purple_user_dir()) "
234 "each time when instant message is received.\n"
235 "\n- Any text printed to STDOUT by this script will be sent back as answer to received message."
236 "\n- Following environment values will be set, so script can use them for responding:\n"
b1866b8c 237 "\t- " ENV_PREFIX "* (see documentation or env for more)\n"
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238 "\nPlease see sample scripts, documentation, website and source code for more informations...\n"
239 "\n(-; Peace ;-)\n",
15117484 240 "Tomas Mudrunka <harviecz@gmail.cz>",
53478f8c 241 "http://github.com/harvie/libpurple-core-answerscripts",
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242
243 plugin_load,
244 plugin_unload,
245 NULL,
246 NULL,
247 NULL,
248 NULL,
249 NULL,
250 NULL,
251 NULL,
252 NULL,
253 NULL
254};
255
256static void init_plugin(PurplePlugin * plugin) {
b9de4161 257 //Export static environment variables
5d3f875e 258 //#ifndef __x86_64__ //Workaround for x86_64 (where this causes problems for unknown reason)
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259 const char * core_ui = check_null(purple_core_get_ui());
260 const char * core_version = check_null(purple_core_get_version());
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261 setenv(ENV_PREFIX "L_AGENT", (char *) core_ui, 1); //ID of IM client used with answerscripts
262 setenv(ENV_PREFIX "L_AGENT_VERSION", (char *) core_version, 1); //Version of client
5d3f875e 263 //#endif
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264}
265
266PURPLE_INIT_PLUGIN(autoanswer, init_plugin, info)
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