Removed TODO as all tasks have been finished
[mirrors/libpurple-core-answerscripts.git] / answerscripts.c
1 //#define __WIN32__
2 #ifndef __WIN32__
3 #define ANSWERSCRIPT_EXT ""
4 #else
5 #define ANSWERSCRIPT_EXT ".exe"
6 #endif
7 #define ANSWERSCRIPT "answerscripts" ANSWERSCRIPT_EXT
8 #define ANSWERSCRIPTS_TIMEOUT_INTERVAL 250
9 #define ANSWERSCRIPTS_LINE_LENGTH 4096
10 #define ENV_PREFIX "ANSW_"
11 #define PROTOCOL_PREFIX "prpl-"
12
13 #include <stdio.h>
14 #include <stdlib.h>
15 #include <errno.h>
16 #include <string.h>
17
18 #ifndef __WIN32__
19 #include <fcntl.h>
20 #endif
21
22 /* Purple plugin */
23 #define PURPLE_PLUGINS
24 #include <libpurple/debug.h>
25 #include <libpurple/version.h>
26 #include <libpurple/conversation.h>
27 #include <libpurple/plugin.h>
28 #include <libpurple/signals.h>
29 #include <libpurple/util.h>
30
31 char *message = NULL;
32 char *hook_script = NULL;
33 char response[ANSWERSCRIPTS_LINE_LENGTH+1];
34 int i;
35
36 typedef struct {
37 FILE *pipe;
38 PurpleConversation *conv;
39 } answerscripts_job;
40
41 int answerscripts_process_message_cb(answerscripts_job *job) {
42 FILE *pipe = job->pipe;
43 PurpleConversation *conv = job->conv;
44
45 if (pipe && !feof(pipe)) {
46 if(!fgets(response, ANSWERSCRIPTS_LINE_LENGTH, pipe)
47 && (errno == EWOULDBLOCK || errno == EAGAIN)
48 ) return 1;
49
50 for(i=0;response[i];i++) if(response[i]=='\n') response[i]=0;
51 purple_conv_im_send(purple_conversation_get_im_data(conv), response);
52
53 if(!feof(pipe)) return 1;
54 }
55 pclose(pipe);
56 free(job);
57 return 0;
58 }
59
60 static void received_im_msg_cb(PurpleAccount *account, char *who, char *buffer, PurpleConversation *conv, PurpleMessageFlags flags, void *data) {
61 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: */
62
63 //Get message
64 message = purple_markup_strip_html(buffer);
65 //printf("\nHarvie received: %s: %s\n", who, message); //debug
66 //purple_conv_im_send(purple_conversation_get_im_data(conv), ":-*"); //debug
67
68 //Get protocol ID
69 const char *protocol_id = purple_account_get_protocol_id(account);
70 if(!strncmp(protocol_id,PROTOCOL_PREFIX,strlen(PROTOCOL_PREFIX))) protocol_id += strlen(PROTOCOL_PREFIX); //trim out protocol prefix (eg.: "prpl-irc" => "irc")
71
72 //Get status
73 PurpleStatus *status = purple_account_get_active_status(account);
74 PurpleStatusType *type = purple_status_get_type(status);
75
76 //Get status id
77 const char *status_id = NULL;
78 status_id = purple_primitive_get_id_from_type(purple_status_type_get_primitive(type));
79
80 //Get status message
81 const char *status_msg = NULL;
82 if (purple_status_type_get_attr(type, "message") != NULL) {
83 status_msg = purple_status_get_attr_string(status, "message");
84 } else {
85 status_msg = (char *) purple_savedstatus_get_message(purple_savedstatus_get_current());
86 }
87
88 //Export variables to environment
89 setenv(ENV_PREFIX "MSG", message, 1);
90 setenv(ENV_PREFIX "FROM", who, 1);
91 setenv(ENV_PREFIX "PROTOCOL", protocol_id, 1);
92 setenv(ENV_PREFIX "STATUS", status_id, 1);
93 setenv(ENV_PREFIX "STATUS_MSG", status_msg, 1);
94
95 //Launch job on background
96 answerscripts_job *job = (answerscripts_job*) malloc(sizeof(answerscripts_job));
97 job->pipe = popen(hook_script, "r");
98 job->conv = conv;
99
100 #ifndef __WIN32__
101 int fflags = fcntl(fileno(job->pipe), F_GETFL, 0);
102 fcntl(fileno(job->pipe), F_SETFL, fflags | O_NONBLOCK);
103 #endif
104
105 purple_timeout_add(ANSWERSCRIPTS_TIMEOUT_INTERVAL, (GSourceFunc) answerscripts_process_message_cb, (gpointer) job);
106 }
107
108 static gboolean plugin_load(PurplePlugin * plugin) {
109 asprintf(&hook_script,"%s/%s",purple_user_dir(),ANSWERSCRIPT);
110 void *conv_handle = purple_conversations_get_handle();
111 purple_signal_connect(conv_handle, "received-im-msg", plugin, PURPLE_CALLBACK(received_im_msg_cb), NULL);
112 return TRUE;
113 }
114
115 static gboolean plugin_unload(PurplePlugin * plugin) {
116 free(hook_script);
117 return TRUE;
118 }
119
120 static PurplePluginInfo info = {
121 PURPLE_PLUGIN_MAGIC,
122 PURPLE_MAJOR_VERSION,
123 PURPLE_MINOR_VERSION,
124 PURPLE_PLUGIN_STANDARD,
125 NULL,
126 0,
127 NULL,
128 PURPLE_PRIORITY_DEFAULT,
129
130 "core-answerscripts",
131 "AnswerScripts",
132 "0.3.1",
133 "Framework for hooking scripts to process received messages for libpurple clients",
134 "\nThis plugin will execute script \"~/.purple/" ANSWERSCRIPT "\" "
135 "(or any other executable called \"" ANSWERSCRIPT "\" and found in purple_user_dir()) "
136 "each time when instant message is received.\n"
137 "\n- Any text printed to STDOUT by this script will be sent back as answer to received message."
138 "\n- Following environment values will be set, so script can use them for responding:\n"
139 "\t- ANSW_MSG\n"
140 "\t- ANSW_FROM\n"
141 "\t- ANSW_PROTOCOL\n"
142 "\t- ANSW_STATUS\n"
143 "\t- ANSW_STATUS_MSG\n"
144 "\nPlease see sample scripts, documentation, website and source code for more informations...\n"
145 "\n(-; Peace ;-)\n",
146 "Tomas Mudrunka <harvie@email.cz>",
147 "http://github.com/harvie/libpurple-core-answerscripts",
148
149 plugin_load,
150 plugin_unload,
151 NULL,
152 NULL,
153 NULL,
154 NULL,
155 NULL,
156 NULL,
157 NULL,
158 NULL,
159 NULL
160 };
161
162 static void init_plugin(PurplePlugin * plugin) {
163
164 }
165
166 PURPLE_INIT_PLUGIN(autoanswer, init_plugin, info)
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