/[debian]/bti/trunk/bti.c
ViewVC logotype

Annotation of /bti/trunk/bti.c

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1473 - (hide annotations)
Thu Oct 23 22:26:29 2008 UTC (12 years, 9 months ago) by gregoa
Original Path: bti/branches/upstream/current/bti.c
File MIME type: text/plain
File size: 10221 byte(s)
[svn-inject] Installing original source of bti
1 gregoa 1473 /*
2     * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com>
3     *
4     * This program is free software; you can redistribute it and/or modify it
5     * under the terms of the GNU General Public License as published by the
6     * Free Software Foundation version 2 of the License.
7     *
8     * This program is distributed in the hope that it will be useful, but
9     * WITHOUT ANY WARRANTY; without even the implied warranty of
10     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11     * General Public License for more details.
12     *
13     * You should have received a copy of the GNU General Public License along
14     * with this program; if not, write to the Free Software Foundation, Inc.,
15     * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
16     */
17    
18     #include <stdio.h>
19     #include <stdlib.h>
20     #include <stddef.h>
21     #include <string.h>
22     #include <getopt.h>
23     #include <errno.h>
24     #include <ctype.h>
25     #include <fcntl.h>
26     #include <unistd.h>
27     #include <sys/stat.h>
28     #include <curl/curl.h>
29     #include "bti_version.h"
30    
31    
32     #define zalloc(size) calloc(size, 1)
33    
34     #define dbg(format, arg...) \
35     do { \
36     if (debug) \
37     printf("%s: " format , __func__ , ## arg ); \
38     } while (0)
39    
40    
41     static int debug = 0;
42    
43     enum host {
44     HOST_TWITTER = 0,
45     HOST_IDENTICA = 1,
46     };
47    
48     struct session {
49     char *password;
50     char *account;
51     char *tweet;
52     int bash;
53     enum host host;
54     };
55    
56     struct bti_curl_buffer {
57     char *data;
58     int length;
59     };
60    
61     static void display_help(void)
62     {
63     fprintf(stdout, "bti - send tweet to twitter\n");
64     fprintf(stdout, "Version: " BTI_VERSION "\n");
65     fprintf(stdout, "Usage:\n");
66     fprintf(stdout, " bti [options]\n");
67     fprintf(stdout, "options are:\n");
68     fprintf(stdout, " --account accountname\n");
69     fprintf(stdout, " --password password\n");
70     fprintf(stdout, " --host HOST\n");
71     fprintf(stdout, " --bash\n");
72     fprintf(stdout, " --debug\n");
73     fprintf(stdout, " --version\n");
74     fprintf(stdout, " --help\n");
75     }
76    
77     static void display_version(void)
78     {
79     fprintf(stdout, "bti - version %s\n", BTI_VERSION);
80     }
81    
82     static char *get_string_from_stdin(void)
83     {
84     char *temp;
85     char *string;
86    
87     string = zalloc(1000);
88     if (!string)
89     return NULL;
90    
91     if (!fgets(string, 999, stdin))
92     return NULL;
93     temp = strchr(string, '\n');
94     *temp = '\0';
95     return string;
96     }
97    
98     static struct session *session_alloc(void)
99     {
100     struct session *session;
101    
102     session = zalloc(sizeof(*session));
103     if (!session)
104     return NULL;
105     return session;
106     }
107    
108     static void session_free(struct session *session)
109     {
110     if (!session)
111     return;
112     free(session->password);
113     free(session->account);
114     free(session->tweet);
115     free(session);
116     }
117    
118     static struct bti_curl_buffer *bti_curl_buffer_alloc(void)
119     {
120     struct bti_curl_buffer *buffer;
121    
122     buffer = zalloc(sizeof(*buffer));
123     if (!buffer)
124     return NULL;
125    
126     /* start out with a data buffer of 1 byte to
127     * make the buffer fill logic simpler */
128     buffer->data = zalloc(1);
129     if (!buffer->data) {
130     free(buffer);
131     return NULL;
132     }
133     buffer->length = 0;
134     return buffer;
135     }
136    
137     static void bti_curl_buffer_free(struct bti_curl_buffer *buffer)
138     {
139     if (!buffer)
140     return;
141     free(buffer->data);
142     free(buffer);
143     }
144    
145     static const char *twitter_url = "https://twitter.com/statuses/update.xml";
146     static const char *identica_url = "http://identi.ca/api/statuses/update.xml";
147    
148     static CURL *curl_init(void)
149     {
150     CURL *curl;
151    
152     curl = curl_easy_init();
153     if (!curl) {
154     fprintf(stderr, "Can not init CURL!\n");
155     return NULL;
156     }
157     /* some ssl sanity checks on the connection we are making */
158     curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
159     curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
160     return curl;
161     }
162    
163     size_t curl_callback(void *buffer, size_t size, size_t nmemb, void *userp)
164     {
165     struct bti_curl_buffer *curl_buf = userp;
166     size_t buffer_size = size * nmemb;
167     char *temp;
168    
169     if ((!buffer) || (!buffer_size) || (!curl_buf))
170     return -EINVAL;
171    
172     /* add to the data we already have */
173     temp = zalloc(curl_buf->length + buffer_size + 1);
174     if (!temp)
175     return -ENOMEM;
176    
177     memcpy(temp, curl_buf->data, curl_buf->length);
178     free(curl_buf->data);
179     curl_buf->data = temp;
180     memcpy(&curl_buf->data[curl_buf->length], (char *)buffer, buffer_size);
181     curl_buf->length += buffer_size;
182    
183     dbg("%s\n", curl_buf->data);
184    
185     return buffer_size;
186     }
187    
188     static int send_tweet(struct session *session)
189     {
190     char user_password[500];
191     char data[500];
192     struct bti_curl_buffer *curl_buf;
193     CURL *curl = NULL;
194     CURLcode res;
195     struct curl_httppost *formpost = NULL;
196     struct curl_httppost *lastptr = NULL;
197    
198     if (!session)
199     return -EINVAL;
200    
201     curl_buf = bti_curl_buffer_alloc();
202     if (!curl_buf)
203     return -ENOMEM;
204    
205     snprintf(user_password, sizeof(user_password), "%s:%s",
206     session->account, session->password);
207     snprintf(data, sizeof(data), "status=\"%s\"", session->tweet);
208    
209     curl = curl_init();
210     if (!curl)
211     return -EINVAL;
212    
213     curl_formadd(&formpost, &lastptr,
214     CURLFORM_COPYNAME, "status",
215     CURLFORM_COPYCONTENTS, session->tweet,
216     CURLFORM_END);
217    
218     curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
219    
220     switch (session->host) {
221     case HOST_TWITTER:
222     curl_easy_setopt(curl, CURLOPT_URL, twitter_url);
223     break;
224     case HOST_IDENTICA:
225     curl_easy_setopt(curl, CURLOPT_URL, identica_url);
226     break;
227     }
228    
229     if (debug)
230     curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
231     curl_easy_setopt(curl, CURLOPT_USERPWD, user_password);
232    
233     dbg("user_password = %s\n", user_password);
234     dbg("data = %s\n", data);
235    
236     curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback);
237     curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl_buf);
238     res = curl_easy_perform(curl);
239     if (res && !session->bash) {
240     fprintf(stderr, "error(%d) trying to send tweet\n", res);
241     return -EINVAL;
242     }
243    
244     curl_easy_cleanup(curl);
245     curl_formfree(formpost);
246     bti_curl_buffer_free(curl_buf);
247     return 0;
248     }
249    
250     static void parse_configfile(struct session *session)
251     {
252     FILE *config_file;
253     char *line = NULL;
254     size_t len = 0;
255     char *account = NULL;
256     char *password = NULL;
257     char *host = NULL;
258     char *file;
259     char *home = getenv("HOME");
260    
261     /* config file is ~/.bti */
262     file = alloca(strlen(home) + 7);
263    
264     sprintf(file, "%s/.bti", home);
265    
266     config_file = fopen(file, "r");
267    
268     /* No error if file does not exist or is unreadable. */
269     if (config_file == NULL)
270     return;
271    
272     do {
273     ssize_t n = getline(&line, &len, config_file);
274     if (n < 0)
275     break;
276     if (line[n - 1] == '\n')
277     line[n - 1] = '\0';
278     /* Parse file. Format is the usual value pairs:
279     account=name
280     passwort=value
281     # is a comment character
282     */
283     *strchrnul(line, '#') = '\0';
284     char *c = line;
285     while (isspace(*c))
286     c++;
287     /* Ignore blank lines. */
288     if (c[0] == '\0')
289     continue;
290    
291     if (!strncasecmp(c, "account", 7) && (c[7] == '=')) {
292     c += 8;
293     if (c[0] != '\0')
294     account = strdup(c);
295     } else if (!strncasecmp(c, "password", 8) &&
296     (c[8] == '=')) {
297     c += 9;
298     if (c[0] != '\0')
299     password = strdup(c);
300     } else if (!strncasecmp(c, "host", 4) &&
301     (c[4] == '=')) {
302     c += 5;
303     if (c[0] != '\0')
304     host = strdup(c);
305     }
306     } while (!feof(config_file));
307    
308     if (password)
309     session->password = password;
310     if (account)
311     session->account = account;
312     if (host) {
313     if (strcasecmp(host, "twitter") == 0)
314     session->host = HOST_TWITTER;
315     if (strcasecmp(host, "identica") == 0)
316     session->host = HOST_IDENTICA;
317     free(host);
318     }
319    
320     /* Free buffer and close file. */
321     free(line);
322     fclose(config_file);
323     }
324    
325     int main(int argc, char *argv[], char *envp[])
326     {
327     static const struct option options[] = {
328     { "debug", 0, NULL, 'd' },
329     { "account", 1, NULL, 'a' },
330     { "password", 1, NULL, 'p' },
331     { "host", 1, NULL, 'H' },
332     { "help", 0, NULL, 'h' },
333     { "bash", 0, NULL, 'b' },
334     { "version", 0, NULL, 'v' },
335     { }
336     };
337     struct session *session;
338     pid_t child;
339     char *tweet;
340     int retval;
341     int option;
342     #if 0
343     char *home = getenv("HOME");
344     char *pwd = getenv("PWD");
345     char *dir;
346     #endif
347     session = session_alloc();
348     if (!session) {
349     fprintf(stderr, "no more memory...\n");
350     return -1;
351     }
352    
353     curl_global_init(CURL_GLOBAL_ALL);
354     parse_configfile(session);
355    
356     while (1) {
357     option = getopt_long_only(argc, argv, "dqe:p:H:a:h",
358     options, NULL);
359     if (option == -1)
360     break;
361     switch (option) {
362     case 'd':
363     debug = 1;
364     break;
365     case 'a':
366     if (session->account)
367     free(session->account);
368     session->account = strdup(optarg);
369     dbg("account = %s\n", session->account);
370     break;
371     case 'p':
372     if (session->password)
373     free(session->password);
374     session->password = strdup(optarg);
375     dbg("password = %s\n", session->password);
376     break;
377     case 'H':
378     if (strcasecmp(optarg, "twitter") == 0)
379     session->host = HOST_TWITTER;
380     if (strcasecmp(optarg, "identica") == 0)
381     session->host = HOST_IDENTICA;
382     dbg("host = %d\n", session->host);
383     break;
384     case 'b':
385     session->bash= 1;
386     break;
387     case 'h':
388     display_help();
389     goto exit;
390     case 'v':
391     display_version();
392     goto exit;
393     default:
394     display_help();
395     goto exit;
396     }
397     }
398    
399     if (!session->account) {
400     fprintf(stdout, "Enter twitter account: ");
401     session->account = get_string_from_stdin();
402     }
403    
404     if (!session->password) {
405     fprintf(stdout, "Enter twitter password: ");
406     session->password = get_string_from_stdin();
407     }
408     #if 0
409     /* get the current working directory basename */
410     if (strcmp(pwd, home) == 0)
411     dir = "~";
412     else {
413     dir = strrchr(pwd, '/');
414     if (dir)
415     dir++;
416     else
417     dir = "?";
418     }
419     #endif
420     tweet = get_string_from_stdin();
421     if (strlen(tweet) == 0) {
422     dbg("no tweet?\n");
423     return -1;
424     }
425    
426     // session->tweet = zalloc(strlen(tweet) + strlen(dir) + 10);
427     session->tweet = zalloc(strlen(tweet) + 10);
428    
429     /* if --bash is specified, add the "PWD $ " to
430     * the start of the tweet. */
431     if (session->bash)
432     // sprintf(session->tweet, "%s $ %s", dir, tweet);
433     sprintf(session->tweet, "$ %s", tweet);
434     else
435     sprintf(session->tweet, "%s", tweet);
436     free(tweet);
437    
438     dbg("account = %s\n", session->account);
439     dbg("password = %s\n", session->password);
440     dbg("tweet = %s\n", session->tweet);
441     dbg("host = %d\n", session->host);
442    
443     /* fork ourself so that the main shell can get on
444     * with it's life as we try to connect and handle everything
445     */
446     if (session->bash) {
447     child = fork();
448     if (child) {
449     dbg("child is %d\n", child);
450     exit(0);
451     }
452     }
453    
454     retval = send_tweet(session);
455     if (retval && !session->bash) {
456     fprintf(stderr, "tweet failed\n");
457     return -1;
458     }
459    
460     session_free(session);
461     exit:
462     return 0;
463     }

  ViewVC Help
Powered by ViewVC 1.1.26