1/*!
2 * @file main.c
3 *
4 * vim: expandtab:ts=2:sts=2:sw=2
5 *
6 * @authors
7 * Copyright (C) 2020 Anoxinon e.V.
8 *
9 * @copyright
10 * This file is part of xmppc.
11 *
12 * xmppc is free software: you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation, either version 3 of the License, or
15 * (at your option) any later version.
16 *
17 * xmppc is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with Foobar. If not, see <http://www.gnu.org/licenses/>.
24 *
25 * German
26 *
27 * Diese Datei ist Teil von xmppc.
28 *
29 * xmppc ist Freie Software: Sie können es unter den Bedingungen
30 * der GNU General Public License, wie von der Free Software Foundation,
31 * Version 3 der Lizenz oder (nach Ihrer Wahl) jeder neueren
32 * veröffentlichten Version, weiter verteilen und/oder modifizieren.
33 *
34 * xmppc wird in der Hoffnung, dass es nützlich sein wird, aber
35 * OHNE JEDE GEWÄHRLEISTUNG, bereitgestellt; sogar ohne die implizite
36 * Gewährleistung der MARKTFÄHIGKEIT oder EIGNUNG FÜR EINEN BESTIMMTEN ZWECK.
37 * Siehe die GNU General Public License für weitere Details.
38 *
39 * Sie sollten eine Kopie der GNU General Public License zusammen mit diesem
40 * Programm erhalten haben. Wenn nicht, siehe <https://www.gnu.org/licenses/>.
41 */
42
43/*!
44 * @mainpage xmppc - XMPP command line
45 *
46 * @section whatIsXmppc What is xmppc
47 *
48 * xmppc is a command line program for XMPP (https://xmpp.org/).
49 * The program has been written for the Debian GNU/Linux system (https://www.debian.org/).
50 *
51 * @section build Build
52 *
53 * @subsection dependencies Dependencies
54 *
55 * - The GNU C Library (glibc) - 2.28-10
56 * - GLib - 2.58.3
57 * - XMPP library libstrophe - 0.9.2-2
58 * - GPGME (GnuPG Made Easy) - 1.12.0-6
59 *
60 * @subsection compile Compile
61 *
62 * @code{.bash}
63 * ./bootstrap.sh
64 * ./configure
65 * make
66 * @endcode
67 *
68 * @subsection documentation Documentation
69 * @code{.bash}
70 * cd doc
71 * make
72 * @endcode
73 * @section usage Usage
74 *
75 * @code{.bash}
76 * xmppc --jid <jabberid> --pwd <secret> --mode <mode> <command> <command args>
77 * @endcode
78 *
79 * @code{.bash}
80 * xmppc --jid user@domain.tld --pwd "my secret" --mode pgp chat friend@domain.tld "Hello!"
81 * xmppc --jid user@domain.tld --pwd $(pass XMPP/domain/user) --mode omemo list
82 * @endcode
83 *
84 *
85 * @section development Development
86 *
87 * - \subpage module
88 *
89 */
90
91/*!
92 * \page module Modules
93 *
94 * \section account Account
95 * \section roster Roster
96 * \section message Message
97 * \section muc Multi-User-Chat
98 * \section omemo OMEMO
99 * XEP-0384: OMEMO Encryption (Version 0.3.0 (2018-07-31)). xmppc can use used
100 * to request the users OMEMO Device ID List and displays the Fingerprints of
101 * the keys.
102 *
103 * @code{.bash}
104 * xmppc --jid user@domain.tld --pwd $(pass domain.tld/user) --mode omemo
105 * @endcode
106 *
107 * @code{.bash}
108 * xmppc --jid user@domain.tld --pwd $(pass domain.tld/user) --mode omemo| gpg --clear-sign --sign-with 123ABC_MY_OPENPGP_KEY_1234 > omemo.asc
109 * @endcode
110 *
111 *
112 * \section pgp PGP
113 * XEP-0027: Current Jabber OpenPGP Usage
114 * (https://xmpp.org/extensions/xep-0027.html) is obsolete, but there are still
115 * clients which supports XEP-0027 instead of XEP-0373 / XEP-0374. This module
116 * supports sending of OpenPGP encrypted messages via XMPP's XEP-0027.
117 *
118 * @code{.bash}
119 * xmppc --jid user@domain.tld --pwd "my secret" --mode pgp friend@domain.tld "Hello!"
120 * @endcode
121 *
122 * xmppc use GnuPG's GPGME API use lookup the own key and the key of the
123 * recipient. Those two keys will be used to encrypt the message.
124 *
125 * Details \subpage module-pgp
126 *
127 */
128
129#include "config.h"
130#include <assert.h>
131#include <getopt.h>
132#include <stdarg.h>
133#include <stdio.h>
134#include <stdlib.h>
135#include <string.h>
136#include <glib.h>
137#include <strophe.h>
138
139#include "xmppc.h"
140#include "mode/account.h"
141#include "mode/message.h"
142#include "mode/muc.h"
143#include "mode/omemo.h"
144#include "mode/roster.h"
145#include "mode/pgp.h"
146#include "mode/openpgp.h"
147#include "mode/monitor.h"
148
149/*!
150 * @brief The callback structure.
151 *
152 * This struct is used to call the "execution"-function of the mode module (e.g
153 * account_execute_command, roster_execute_command, ...).
154 *
155 * @authors DebxWoody
156 * @since 0.0.2
157 * @version 1
158 *
159 */
160
161typedef struct {
162 /*! Size of arguments */
163 int argc;
164 /*! Array of C-Strings (arguments) with size of argc */
165 char **argv;
166 /*! Pointer to Execute-Handler */
167 ExecuteHandler callback;
168 /*! XMPPC context object */
169 xmppc_t *xmppc;
170} callback_t;
171
172/*!
173 * @brief Mode Mapping.
174 *
175 * This struct is used to provider the mapping of the mode name (name via
176 * command line interface of the user (e.g. -m account). The technical ID of the
177 * mode which is defined via enum xmppc_mode_t and the pointer of function which
178 * should be used to handle those mode.
179 *
180 * @authors DebxWoody
181 * @since 0.0.2
182 * @version 1
183 */
184
185struct mode_mapping {
186 const char *name;
187 xmppc_mode_t mode;
188 ExecuteHandler callback;
189};
190
191/*!
192 * @brief Mode mapping table.
193 *
194 * Mapping of mode's string, enum and function.
195 *
196 * @authors DebxWoody
197 * @since 0.0.2
198 * @version 1
199 *
200 */
201
202static struct mode_mapping map[] = {
203 /*!
204 * Account Mode Mapping
205 * @since 0.0.2
206 * @version 1
207 */
208 {"account", ACCOUNT, account_execute_command},
209 /*!
210 * roster Mode Mapping
211 * @since 0.0.2
212 * @version 1
213 */
214 {"roster", ROSTER, roster_execute_command},
215 /*!
216 * Message Mode Mapping
217 * @since 0.0.2
218 * @version 1
219 */
220 {"message", MESSAGE, message_execute_command},
221 /*!
222 * MUC Mode Mapping
223 * @since 0.0.2
224 * @version 1
225 */
226 {"muc", MUC, muc_execute_command},
227 /*!
228 * OMEMO Mode Mapping
229 * @since 0.0.2
230 * @version 1
231 */
232 {"omemo", OMEMO, omemo_execute_command},
233 /*!
234 * PGP Mode Mapping
235 * @since 0.0.2
236 * @version 1
237 */
238 {"pgp", PGP, pgp_execute_command},
239 /*!
240 * XEP-0373: OpenPGP for XMPP
241 */
242 {"openpgp", OPENPGP, openpgp_execute_command},
243 /*!
244 * Monitor
245 */
246 {"monitor", MONITOR, monitor_execute_command},
247 // End of Map
248 {NULL, 0}
249};
250
251/*!
252 * \brief Connection Handler Callback of libstrophe.
253 *
254 * This function will be called by libstrophe.
255 *
256 * \param conn See libstrophe documentation
257 * \param status See libstrophe documentation
258 * \param error See libstrophe documentation
259 * \param stream_error See libstrophe documentation
260 *
261 * \param userdata callback_t object for the mode request by user.
262 *
263 * @authors DebxWoody
264 * @since 0.0.2
265 * @version 1
266 *
267 */
268
269void conn_handler(xmpp_conn_t *const conn, const xmpp_conn_event_t status,
270 const int error, xmpp_stream_error_t *const stream_error,
271 void *const userdata) {
272 callback_t *callback = (callback_t *)userdata;
273
274 if (status == XMPP_CONN_CONNECT) {
275 logInfo(callback->xmppc, "Connected\n");
276 callback->callback(callback->xmppc, callback->argc, callback->argv);
277 } else {
278 xmpp_stop(xmpp_conn_get_context(conn));
279 }
280}
281
282static void _show_help();
283
284/*!
285 * \brief C-Main function
286 *
287 * - Parse argv arguments of the command line.
288 * - Checks jid and password for xmpp logging
289 * - Checks mode requested by user
290 * - All other arguments will be used as mode parameters
291 *
292 * \param argc Arguments counter
293 * \param argv Arguments vector
294 * \returns Exit Code
295 *
296 * @authors DebxWoody
297 * @since 0.0.2
298 * @version 2
299 */
300
301int main(int argc, char *argv[]) {
302#if XMPPC_DEVELOPMENT
303 printf("!!! WARNING: XMPPC is running in development mode !!!\n");
304#endif
305
306 INIT_XMPPC(xmppc);
307
308 static int verbose_flag = 0;
309 int c = 0;
310 xmppc_mode_t mode = UNKOWN;
311 char *jid = NULL;
312 char *pwd = NULL;
313 char *account = NULL;
314
315 static struct option long_options[] = {
316 /* These options set a flag. */
317 {"verbose", no_argument, &verbose_flag, 1},
318 {"help", no_argument, 0, 'h'},
319 {"config", required_argument, 0, 'c'},
320 {"account", required_argument, 0, 'a'},
321 {"jid", required_argument, 0, 'j'},
322 {"pwd", required_argument, 0, 'p'},
323 {"mode", required_argument, 0, 'm'},
324 {"file", required_argument, 0, 'f'},
325 {0, 0, 0, 0}};
326 while (c > -1) {
327 int option_index = 0;
328
329 c = getopt_long(argc, argv, "hva:j:p:m:", long_options, &option_index);
330 if (c > -1) {
331 switch (c) {
332 case 'h':
333 _show_help();
334 return EXIT_SUCCESS;
335
336 case 'c':
337 printf("option -c with value `%s'\n", optarg);
338 break;
339
340 case 'f':
341 printf("option -f with value `%s'\n", optarg);
342 break;
343
344 case 'a':
345 account = malloc(strlen(optarg) + 1);
346 strcpy(account, optarg);
347 break;
348
349 case 'j':
350 jid = malloc(strlen(optarg) + 1);
351 strcpy(jid, optarg);
352 break;
353
354 case 'p':
355 pwd = malloc(strlen(optarg) + 1);
356 strcpy(pwd, optarg);
357 break;
358
359 case 'm':
360 for(int i = 0; map[i].name;i++ ) {
361 if (strcmp(optarg, map[i].name) == 0) {
362 mode = map[i].mode;
363 break;
364 }
365 }
366 break;
367
368 case 'v':
369 verbose_flag++;
370 break;
371
372 case '?':
373 break;
374
375 default:
376 abort();
377 }
378 }
379 }
380
381 // Loading config file
382 GKeyFile *config_file = g_key_file_new();
383 GError *error = NULL;
384 GString* configfile = g_string_new( g_get_home_dir());
385 g_string_append(configfile,"/.config/xmppc.conf");
386 gboolean configfilefound = g_key_file_load_from_file(
387 config_file,
388 configfile->str,
389 G_KEY_FILE_NONE,
390 &error);
391
392 if (!configfilefound) {
393 if(!g_error_matches(error, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_KEY_NOT_FOUND)) {
394 logError(&xmppc, "Error loading key file: %s", error->message);
395 return -1;
396 }
397 } else {
398 if(jid == NULL && pwd == NULL) {
399 logInfo(&xmppc,"Loading default account\n");
400 if( account == NULL ) {
401 account = "default";
402 }
403 jid = g_key_file_get_value (config_file, account, "jid" ,&error);
404 pwd = g_key_file_get_value (config_file, account, "pwd" ,&error);
405 }
406 }
407
408 int paramc = argc- optind;
409 char* paramv[paramc];
410
411 for (int i = optind; i < argc; i++) {
412 char* x= malloc(strlen(argv[i])+1 *sizeof(char) );
413 strcpy(x,argv[i]);
414 paramv[i-optind] = x;
415 }
416 xmppc_context(&xmppc, verbose_flag);
417
418 logInfo(&xmppc, "Connecting... \n");
419 xmppc_connect(&xmppc, jid, pwd);
420
421 ExecuteHandler handler = NULL;
422 for(int i = 0; map[i].name;i++ ) {
423 if (mode == map[i].mode) {
424 handler = map[i].callback;
425 break;
426 }
427 }
428
429 callback_t callback = {paramc, paramv, handler, &xmppc};
430
431 xmpp_connect_client(xmppc.conn, NULL, 0, conn_handler, &callback);
432
433 xmpp_run(xmppc.ctx);
434 xmpp_conn_release(xmppc.conn);
435 xmpp_ctx_free(xmppc.ctx);
436 xmpp_shutdown();
437
438 return EXIT_SUCCESS;
439}
440
441static void _show_help() {
442#ifdef XMPPC_DEVELOPMENT
443 printf("%s - Development\n", PACKAGE_STRING);
444#else
445 printf("%s\n", PACKAGE_STRING);
446#endif
447 printf("Usage: xmppc --account <account> --jid <jid> --pwd <pwd> --mode <mode> <command> <parameters>\n");
448 printf("Options:\n");
449 printf(" -h / --help Display this information.\n");
450 printf(" -j / --jid <jid> Jabber ID\n");
451 printf(" -p / --pwd <password> Passwort\n");
452 printf(" -a / --account <account> Passwort\n");
453 printf(" -m / --mode <mode> xmppc mode\n");
454 printf("\n");
455 printf("Modes:\n");
456 printf(" -m --mode roster xmppc roster mode\n");
457 printf(" list List all contacts\n");
458 printf(" export Exports all contacts\n");
459 printf("\n");
460 printf(" -m --mode message xmppc message mode\n");
461 printf(" chat <jid> <message> Sending unencrypted message to jid\n");
462 printf("\n");
463 printf(" -m --mode pgp xmppc pgp mode (XEP-0027) \n");
464 printf(" chat <jid> <message> Sending pgp encrypted message to jid\n");
465 printf("\n");
466 printf(" -m --mode omemo xmppc omemo mode\n");
467 printf(" list List the device IDs and fingerprints\n");
468 printf("\n");
469 printf(" -m --mode openpgp xmppc openpgp mode (XEP-0373)\n");
470 printf(" signcrypt <jid> <message> Sending pgp signed and encrypted message to jid\n");
471 printf("\n");
472 printf(" -m --mode monitor Monitot mode");
473 printf(" stanza Stanza Monitor\n");
474 printf(" monitor microblog Monitor microblog (XEP-0277: Microblogging over XMPP)\n");
475 printf("\n");
476 printf("\n");
477 printf("Examples:\n");
478 printf(" Usage: xmppc --jid user@domain.tld --pwd \"secret\" --mode roster list\n");
479 printf(" Usage: xmppc --jid user@domain.tld --pwd \"secret\" --mode pgp chat friend@domain.tld \"Hello\"\n");
480
481}