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#include <errno.h>
139
140#include "xmppc.h"
141#include "mode/account.h"
142#include "mode/message.h"
143#include "mode/muc.h"
144#include "mode/omemo.h"
145#include "mode/roster.h"
146#include "mode/pgp.h"
147#include "mode/openpgp.h"
148#include "mode/monitor.h"
149#include "mode/mam.h"
150#include "mode/discovery.h"
151#include "mode/bookmark.h"
152
153/*!
154 * @brief The callback structure.
155 *
156 * This struct is used to call the "execution"-function of the mode module (e.g
157 * account_execute_command, roster_execute_command, ...).
158 *
159 * @authors DebxWoody
160 * @since 0.0.2
161 * @version 1
162 *
163 */
164
165typedef struct {
166 /*! Size of arguments */
167 int argc;
168 /*! Array of C-Strings (arguments) with size of argc */
169 char **argv;
170 /*! Pointer to Execute-Handler */
171 ExecuteHandler callback;
172 /*! XMPPC context object */
173 xmppc_t *xmppc;
174} callback_t;
175
176/*!
177 * @brief Mode Mapping.
178 *
179 * This struct is used to provider the mapping of the mode name (name via
180 * command line interface of the user (e.g. -m account). The technical ID of the
181 * mode which is defined via enum xmppc_mode_t and the pointer of function which
182 * should be used to handle those mode.
183 *
184 * @authors DebxWoody
185 * @since 0.0.2
186 * @version 1
187 */
188
189struct mode_mapping {
190 const char *name;
191 xmppc_mode_t mode;
192 ExecuteHandler callback;
193};
194
195/*!
196 * @brief Mode mapping table.
197 *
198 * Mapping of mode's string, enum and function.
199 *
200 * @authors DebxWoody
201 * @since 0.0.2
202 * @version 1
203 *
204 */
205
206static struct mode_mapping map[] = {
207 /*!
208 * Account Mode Mapping
209 * @since 0.0.2
210 * @version 1
211 */
212 {"account", ACCOUNT, account_execute_command},
213 /*!
214 * roster Mode Mapping
215 * @since 0.0.2
216 * @version 1
217 */
218 {"roster", ROSTER, roster_execute_command},
219 /*!
220 * Message Mode Mapping
221 * @since 0.0.2
222 * @version 1
223 */
224 {"message", MESSAGE, message_execute_command},
225 /*!
226 * MUC Mode Mapping
227 * @since 0.0.2
228 * @version 1
229 */
230 {"muc", MUC, muc_execute_command},
231 /*!
232 * OMEMO Mode Mapping
233 * @since 0.0.2
234 * @version 1
235 */
236 {"omemo", OMEMO, omemo_execute_command},
237 /*!
238 * PGP Mode Mapping
239 * @since 0.0.2
240 * @version 1
241 */
242 {"pgp", PGP, pgp_execute_command},
243 /*!
244 * XEP-0373: OpenPGP for XMPP
245 */
246 {"openpgp", OPENPGP, openpgp_execute_command},
247 /*!
248 * Monitor
249 */
250 {"monitor", MONITOR, monitor_execute_command},
251 //
252 {"discovery", DISCOVERY, discovery_execute_command},
253 //
254 {"bookmark", BOOKMARK, bookmark_execute_command},
255 //
256 {"mam", MAM, mam_execute_command},
257 // End of Map
258 {NULL, 0}
259};
260
261/*!
262 * \brief Connection Handler Callback of libstrophe.
263 *
264 * This function will be called by libstrophe.
265 *
266 * \param conn See libstrophe documentation
267 * \param status See libstrophe documentation
268 * \param error See libstrophe documentation
269 * \param stream_error See libstrophe documentation
270 *
271 * \param userdata callback_t object for the mode request by user.
272 *
273 * @authors DebxWoody
274 * @since 0.0.2
275 * @version 1
276 *
277 */
278
279void conn_handler(xmpp_conn_t *const conn, const xmpp_conn_event_t status,
280 const int error, xmpp_stream_error_t *const stream_error,
281 void *const userdata) {
282 callback_t *callback = (callback_t *)userdata;
283
284 if( error != 0 ) {
285 logError(callback->xmppc,"Connection failed. %s\n", strerror(error));
286 xmpp_stop(xmpp_conn_get_context(conn));
287 return;
288 }
289
290 if( stream_error != NULL ) {
291 logError(callback->xmppc,"Connection failed. %s\n", stream_error->text);
292 xmpp_stop(xmpp_conn_get_context(conn));
293 return;
294 }
295
296
297 switch (status) {
298 case XMPP_CONN_CONNECT:
299 logInfo(callback->xmppc, "Connected\n");
300 if( xmpp_conn_is_secured(conn) ) {
301 logInfo(callback->xmppc, "Secure connection!\n");
302 } else {
303 logWarn(callback->xmppc, "Connection not secure!\n");
304 }
305 callback->callback(callback->xmppc, callback->argc, callback->argv);
306 break;
307 case XMPP_CONN_RAW_CONNECT:
308 case XMPP_CONN_DISCONNECT:
309 case XMPP_CONN_FAIL:
310 logInfo(callback->xmppc, "Stopping XMPP!\n");
311 xmpp_stop(xmpp_conn_get_context(conn));
312 }
313}
314
315static void _show_help();
316
317/*!
318 * \brief C-Main function
319 *
320 * - Parse argv arguments of the command line.
321 * - Checks jid and password for xmpp logging
322 * - Checks mode requested by user
323 * - All other arguments will be used as mode parameters
324 *
325 * \param argc Arguments counter
326 * \param argv Arguments vector
327 * \returns Exit Code
328 *
329 * @authors DebxWoody
330 * @since 0.0.2
331 * @version 2
332 */
333
334int main(int argc, char *argv[]) {
335#if XMPPC_DEVELOPMENT
336 printf("!!! WARNING: XMPPC is running in development mode !!!\n");
337#endif
338
339 INIT_XMPPC(xmppc);
340
341 static int verbose_flag = 0;
342 int c = 0;
343 xmppc_mode_t mode = UNKOWN;
344 char *jid = NULL;
345 char *pwd = NULL;
346 char *account = NULL;
347
348 static struct option long_options[] = {
349 /* These options set a flag. */
350 {"verbose", no_argument, &verbose_flag, 1},
351 {"help", no_argument, 0, 'h'},
352 {"config", required_argument, 0, 'c'},
353 {"account", required_argument, 0, 'a'},
354 {"jid", required_argument, 0, 'j'},
355 {"pwd", required_argument, 0, 'p'},
356 {"mode", required_argument, 0, 'm'},
357 {"file", required_argument, 0, 'f'},
358 {0, 0, 0, 0}};
359 while (c > -1) {
360 int option_index = 0;
361
362 c = getopt_long(argc, argv, "hva:j:p:m:", long_options, &option_index);
363 if (c > -1) {
364 switch (c) {
365 case 'h':
366 _show_help();
367 return EXIT_SUCCESS;
368
369 case 'c':
370 printf("option -c with value `%s'\n", optarg);
371 break;
372
373 case 'f':
374 printf("option -f with value `%s'\n", optarg);
375 break;
376
377 case 'a':
378 account = malloc(strlen(optarg) + 1);
379 strcpy(account, optarg);
380 break;
381
382 case 'j':
383 jid = malloc(strlen(optarg) + 1);
384 strcpy(jid, optarg);
385 break;
386
387 case 'p':
388 pwd = malloc(strlen(optarg) + 1);
389 strcpy(pwd, optarg);
390 break;
391
392 case 'm':
393 for(int i = 0; map[i].name;i++ ) {
394 if (strcmp(optarg, map[i].name) == 0) {
395 mode = map[i].mode;
396 break;
397 }
398 }
399 break;
400
401 case 'v':
402 verbose_flag++;
403 break;
404
405 case '?':
406 break;
407
408 default:
409 abort();
410 }
411 }
412 }
413
414 // Loading config file
415 GKeyFile *config_file = g_key_file_new();
416 GError *error = NULL;
417 GString* configfile = g_string_new( g_get_home_dir());
418 g_string_append(configfile,"/.config/xmppc.conf");
419 gboolean configfilefound = g_key_file_load_from_file(
420 config_file,
421 configfile->str,
422 G_KEY_FILE_NONE,
423 &error);
424
425 if (!configfilefound) {
426 if(!g_error_matches(error, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_KEY_NOT_FOUND)) {
427 logError(&xmppc, "Error loading key file: %s", error->message);
428 return -1;
429 }
430 } else {
431 if(jid == NULL && pwd == NULL) {
432 logInfo(&xmppc,"Loading default account\n");
433 if( account == NULL ) {
434 account = "default";
435 }
436 jid = g_key_file_get_value (config_file, account, "jid" ,&error);
437 pwd = g_key_file_get_value (config_file, account, "pwd" ,&error);
438 }
439 }
440
441 int paramc = argc- optind;
442 char* paramv[paramc];
443
444 for (int i = optind; i < argc; i++) {
445 char* x= malloc(strlen(argv[i])+1 *sizeof(char) );
446 strcpy(x,argv[i]);
447 paramv[i-optind] = x;
448 }
449 xmppc_context(&xmppc, verbose_flag);
450
451 logInfo(&xmppc, "Connecting %s ... ", jid);
452 xmppc_connect(&xmppc, jid, pwd);
453
454 ExecuteHandler handler = NULL;
455 for(int i = 0; map[i].name;i++ ) {
456 if (mode == map[i].mode) {
457 handler = map[i].callback;
458 break;
459 }
460 }
461
462 if( handler == NULL ) {
463 logError(&xmppc, "Unbekannter mode\n");
464 return -1;
465 }
466
467 callback_t callback = {paramc, paramv, handler, &xmppc};
468
469 xmpp_conn_set_flags(xmppc.conn, XMPP_CONN_FLAG_MANDATORY_TLS);
470
471 int e = xmpp_connect_client(xmppc.conn, NULL, 0, conn_handler, &callback);
472 if(XMPP_EOK != e ) {
473 printf("xmpp_connect_client failed");
474 }
475
476 xmpp_run(xmppc.ctx);
477 xmpp_conn_release(xmppc.conn);
478 xmpp_ctx_free(xmppc.ctx);
479 xmpp_shutdown();
480
481 return EXIT_SUCCESS;
482}
483
484static void _show_help() {
485#ifdef XMPPC_DEVELOPMENT
486 printf("%s - Development\n", PACKAGE_STRING);
487#else
488 printf("%s\n", PACKAGE_STRING);
489#endif
490 printf("Usage: xmppc [--account <account>] [ --jid <jid> --pwd <pwd>] --mode <mode> <command> [<parameters> ...]\n");
491 printf("Options:\n");
492 printf(" -h / --help Display this information.\n");
493 printf(" -j / --jid <jid> Jabber ID\n");
494 printf(" -p / --pwd <password> Passwort\n");
495 printf(" -a / --account <account> Account\n");
496 printf(" -m / --mode <mode> xmppc mode\n");
497 printf("\n");
498 printf("Modes:\n");
499 printf(" -m --mode roster xmppc roster mode\n");
500 printf(" list List all contacts\n");
501 printf(" export Exports all contacts\n");
502 printf("\n");
503 printf(" -m --mode message xmppc message mode\n");
504 printf(" chat <jid> <message> Sending unencrypted message to jid\n");
505 printf("\n");
506 printf(" -m --mode pgp xmppc pgp mode (XEP-0027) \n");
507 printf(" chat <jid> <message> Sending pgp encrypted message to jid\n");
508 printf("\n");
509 printf(" -m --mode omemo xmppc omemo mode (XEP-0384)\n");
510 printf(" list List the device IDs and fingerprints\n");
511 printf("\n");
512 printf(" -m --mode openpgp xmppc openpgp mode (XEP-0373)\n");
513 printf(" signcrypt <jid> <message> Sending pgp signed and encrypted message to jid\n");
514 printf("\n");
515 printf(" -m --mode monitor Monitot mode\n");
516 printf(" stanza Stanza Monitor\n");
517 printf(" monitor microblog Monitor microblog (XEP-0277)\n");
518 printf("\n");
519 printf(" -m --mode bookmark Bookmark mode (XEP-0048)\n");
520 printf(" list List bookmarks\n");
521 printf("\n");
522 printf(" -m --mode mam Message Archive Management (XEP-0313)\n");
523 printf(" list <jid> List messages from <jid>\n");
524 printf("\n");
525 printf(" -m --mode discovery Service Discovery (XEP-0030)\n");
526 printf(" info <jid> info request for <jid>\n");
527 printf(" item <jid> item request for <jid>\n");
528 printf("\n");
529 printf("\n");
530 printf("Examples:\n");
531 printf(" Usage: xmppc --jid user@domain.tld --pwd \"secret\" --mode roster list\n");
532 printf(" Usage: xmppc --jid user@domain.tld --pwd \"secret\" --mode pgp chat friend@domain.tld \"Hello\"\n");
533 printf(" Usage: xmppc -a account1 --mode discovery item conference@domain.tld\n");
534 printf(" Usage: xmppc --mode bookmark list\n");
535}