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/* |
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* Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com> |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the |
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* Free Software Foundation version 2 of the License. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 11 |
* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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*/ |
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|
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#include <stdio.h> |
| 19 |
#include <stdlib.h> |
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#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> |
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#include <curl/curl.h> |
| 29 |
#include "bti_version.h" |
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|
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|
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#define zalloc(size) calloc(size, 1) |
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|
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#define dbg(format, arg...) \ |
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do { \ |
| 36 |
if (debug) \ |
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printf("%s: " format , __func__ , ## arg ); \ |
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} while (0) |
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|
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|
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static int debug = 0; |
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|
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enum host { |
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HOST_TWITTER = 0, |
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HOST_IDENTICA = 1, |
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}; |
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|
| 48 |
struct session { |
| 49 |
char *password; |
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char *account; |
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char *tweet; |
| 52 |
char *proxy; |
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int bash; |
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enum host host; |
| 55 |
}; |
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|
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struct bti_curl_buffer { |
| 58 |
char *data; |
| 59 |
int length; |
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}; |
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|
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static void display_help(void) |
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{ |
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fprintf(stdout, "bti - send tweet to twitter\n"); |
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fprintf(stdout, "Version: " BTI_VERSION "\n"); |
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fprintf(stdout, "Usage:\n"); |
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fprintf(stdout, " bti [options]\n"); |
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fprintf(stdout, "options are:\n"); |
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fprintf(stdout, " --account accountname\n"); |
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fprintf(stdout, " --password password\n"); |
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fprintf(stdout, " --proxy PROXY:PORT\n"); |
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fprintf(stdout, " --host HOST\n"); |
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fprintf(stdout, " --bash\n"); |
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fprintf(stdout, " --debug\n"); |
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fprintf(stdout, " --version\n"); |
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fprintf(stdout, " --help\n"); |
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} |
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|
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static void display_version(void) |
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{ |
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fprintf(stdout, "bti - version %s\n", BTI_VERSION); |
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} |
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|
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static char *get_string_from_stdin(void) |
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{ |
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char *temp; |
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char *string; |
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|
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string = zalloc(1000); |
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if (!string) |
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return NULL; |
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|
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if (!fgets(string, 999, stdin)) |
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return NULL; |
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temp = strchr(string, '\n'); |
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*temp = '\0'; |
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return string; |
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} |
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|
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static struct session *session_alloc(void) |
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{ |
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struct session *session; |
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|
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session = zalloc(sizeof(*session)); |
| 105 |
if (!session) |
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return NULL; |
| 107 |
return session; |
| 108 |
} |
| 109 |
|
| 110 |
static void session_free(struct session *session) |
| 111 |
{ |
| 112 |
if (!session) |
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return; |
| 114 |
free(session->password); |
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free(session->account); |
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free(session->tweet); |
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free(session->proxy); |
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free(session); |
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} |
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|
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static struct bti_curl_buffer *bti_curl_buffer_alloc(void) |
| 122 |
{ |
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struct bti_curl_buffer *buffer; |
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|
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buffer = zalloc(sizeof(*buffer)); |
| 126 |
if (!buffer) |
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return NULL; |
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|
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/* start out with a data buffer of 1 byte to |
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* make the buffer fill logic simpler */ |
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buffer->data = zalloc(1); |
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if (!buffer->data) { |
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free(buffer); |
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return NULL; |
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} |
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buffer->length = 0; |
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return buffer; |
| 138 |
} |
| 139 |
|
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static void bti_curl_buffer_free(struct bti_curl_buffer *buffer) |
| 141 |
{ |
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if (!buffer) |
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return; |
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free(buffer->data); |
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free(buffer); |
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} |
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|
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static const char *twitter_url = "https://twitter.com/statuses/update.xml"; |
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static const char *identica_url = "http://identi.ca/api/statuses/update.xml"; |
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|
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static CURL *curl_init(void) |
| 152 |
{ |
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CURL *curl; |
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|
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curl = curl_easy_init(); |
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if (!curl) { |
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fprintf(stderr, "Can not init CURL!\n"); |
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return NULL; |
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} |
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/* some ssl sanity checks on the connection we are making */ |
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curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0); |
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curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0); |
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return curl; |
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} |
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|
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size_t curl_callback(void *buffer, size_t size, size_t nmemb, void *userp) |
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{ |
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struct bti_curl_buffer *curl_buf = userp; |
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size_t buffer_size = size * nmemb; |
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char *temp; |
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|
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if ((!buffer) || (!buffer_size) || (!curl_buf)) |
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return -EINVAL; |
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|
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/* add to the data we already have */ |
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temp = zalloc(curl_buf->length + buffer_size + 1); |
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if (!temp) |
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return -ENOMEM; |
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|
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memcpy(temp, curl_buf->data, curl_buf->length); |
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free(curl_buf->data); |
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curl_buf->data = temp; |
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memcpy(&curl_buf->data[curl_buf->length], (char *)buffer, buffer_size); |
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curl_buf->length += buffer_size; |
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|
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dbg("%s\n", curl_buf->data); |
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|
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return buffer_size; |
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} |
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|
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static int send_tweet(struct session *session) |
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{ |
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char user_password[500]; |
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char data[500]; |
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struct bti_curl_buffer *curl_buf; |
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CURL *curl = NULL; |
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CURLcode res; |
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struct curl_httppost *formpost = NULL; |
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struct curl_httppost *lastptr = NULL; |
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struct curl_slist *slist = NULL; |
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|
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if (!session) |
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return -EINVAL; |
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|
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curl_buf = bti_curl_buffer_alloc(); |
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if (!curl_buf) |
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return -ENOMEM; |
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|
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snprintf(user_password, sizeof(user_password), "%s:%s", |
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session->account, session->password); |
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snprintf(data, sizeof(data), "status=\"%s\"", session->tweet); |
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|
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curl = curl_init(); |
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if (!curl) |
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return -EINVAL; |
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|
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curl_formadd(&formpost, &lastptr, |
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CURLFORM_COPYNAME, "status", |
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CURLFORM_COPYCONTENTS, session->tweet, |
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CURLFORM_END); |
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|
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curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost); |
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|
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switch (session->host) { |
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case HOST_TWITTER: |
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curl_easy_setopt(curl, CURLOPT_URL, twitter_url); |
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/* |
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* twitter doesn't like the "Expect: 100-continue" header |
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* anymore, so turn it off. |
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*/ |
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slist = curl_slist_append(slist, "Expect:"); |
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curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist); |
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break; |
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case HOST_IDENTICA: |
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curl_easy_setopt(curl, CURLOPT_URL, identica_url); |
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break; |
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} |
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|
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if (session->proxy) |
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curl_easy_setopt(curl, CURLOPT_PROXY, session->proxy); |
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|
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if (debug) |
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curl_easy_setopt(curl, CURLOPT_VERBOSE, 1); |
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curl_easy_setopt(curl, CURLOPT_USERPWD, user_password); |
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|
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dbg("user_password = %s\n", user_password); |
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dbg("data = %s\n", data); |
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dbg("proxy = %s\n", session->proxy); |
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|
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_callback); |
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, curl_buf); |
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res = curl_easy_perform(curl); |
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if (res && !session->bash) { |
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fprintf(stderr, "error(%d) trying to send tweet\n", res); |
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return -EINVAL; |
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} |
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|
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curl_easy_cleanup(curl); |
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curl_formfree(formpost); |
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bti_curl_buffer_free(curl_buf); |
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return 0; |
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} |
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|
| 264 |
static void parse_configfile(struct session *session) |
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{ |
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FILE *config_file; |
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char *line = NULL; |
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size_t len = 0; |
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char *account = NULL; |
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char *password = NULL; |
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char *host = NULL; |
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char *proxy = NULL; |
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char *file; |
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char *home = getenv("HOME"); |
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|
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/* config file is ~/.bti */ |
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file = alloca(strlen(home) + 7); |
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|
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sprintf(file, "%s/.bti", home); |
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|
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config_file = fopen(file, "r"); |
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|
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/* No error if file does not exist or is unreadable. */ |
| 284 |
if (config_file == NULL) |
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return; |
| 286 |
|
| 287 |
do { |
| 288 |
ssize_t n = getline(&line, &len, config_file); |
| 289 |
if (n < 0) |
| 290 |
break; |
| 291 |
if (line[n - 1] == '\n') |
| 292 |
line[n - 1] = '\0'; |
| 293 |
/* Parse file. Format is the usual value pairs: |
| 294 |
account=name |
| 295 |
passwort=value |
| 296 |
# is a comment character |
| 297 |
*/ |
| 298 |
*strchrnul(line, '#') = '\0'; |
| 299 |
char *c = line; |
| 300 |
while (isspace(*c)) |
| 301 |
c++; |
| 302 |
/* Ignore blank lines. */ |
| 303 |
if (c[0] == '\0') |
| 304 |
continue; |
| 305 |
|
| 306 |
if (!strncasecmp(c, "account", 7) && (c[7] == '=')) { |
| 307 |
c += 8; |
| 308 |
if (c[0] != '\0') |
| 309 |
account = strdup(c); |
| 310 |
} else if (!strncasecmp(c, "password", 8) && |
| 311 |
(c[8] == '=')) { |
| 312 |
c += 9; |
| 313 |
if (c[0] != '\0') |
| 314 |
password = strdup(c); |
| 315 |
} else if (!strncasecmp(c, "host", 4) && |
| 316 |
(c[4] == '=')) { |
| 317 |
c += 5; |
| 318 |
if (c[0] != '\0') |
| 319 |
host = strdup(c); |
| 320 |
} else if (!strncasecmp(c, "proxy", 5) && |
| 321 |
(c[5] == '=')) { |
| 322 |
c += 6; |
| 323 |
if (c[0] != '\0') |
| 324 |
proxy = strdup(c); |
| 325 |
} |
| 326 |
} while (!feof(config_file)); |
| 327 |
|
| 328 |
if (password) |
| 329 |
session->password = password; |
| 330 |
if (account) |
| 331 |
session->account = account; |
| 332 |
if (host) { |
| 333 |
if (strcasecmp(host, "twitter") == 0) |
| 334 |
session->host = HOST_TWITTER; |
| 335 |
if (strcasecmp(host, "identica") == 0) |
| 336 |
session->host = HOST_IDENTICA; |
| 337 |
free(host); |
| 338 |
} |
| 339 |
if (proxy) { |
| 340 |
if (session->proxy) |
| 341 |
free(session->proxy); |
| 342 |
session->proxy = proxy; |
| 343 |
} |
| 344 |
|
| 345 |
/* Free buffer and close file. */ |
| 346 |
free(line); |
| 347 |
fclose(config_file); |
| 348 |
} |
| 349 |
|
| 350 |
int main(int argc, char *argv[], char *envp[]) |
| 351 |
{ |
| 352 |
static const struct option options[] = { |
| 353 |
{ "debug", 0, NULL, 'd' }, |
| 354 |
{ "account", 1, NULL, 'a' }, |
| 355 |
{ "password", 1, NULL, 'p' }, |
| 356 |
{ "host", 1, NULL, 'H' }, |
| 357 |
{ "proxy", 1, NULL, 'P' }, |
| 358 |
{ "help", 0, NULL, 'h' }, |
| 359 |
{ "bash", 0, NULL, 'b' }, |
| 360 |
{ "version", 0, NULL, 'v' }, |
| 361 |
{ } |
| 362 |
}; |
| 363 |
struct session *session; |
| 364 |
pid_t child; |
| 365 |
char *tweet; |
| 366 |
int retval; |
| 367 |
int option; |
| 368 |
char *http_proxy; |
| 369 |
#if 0 |
| 370 |
char *home = getenv("HOME"); |
| 371 |
char *pwd = getenv("PWD"); |
| 372 |
char *dir; |
| 373 |
#endif |
| 374 |
session = session_alloc(); |
| 375 |
if (!session) { |
| 376 |
fprintf(stderr, "no more memory...\n"); |
| 377 |
return -1; |
| 378 |
} |
| 379 |
|
| 380 |
curl_global_init(CURL_GLOBAL_ALL); |
| 381 |
|
| 382 |
/* Set environment variables first, before reading command line options |
| 383 |
* or config file values. */ |
| 384 |
http_proxy = getenv("http_proxy"); |
| 385 |
if (http_proxy) { |
| 386 |
if (session->proxy) |
| 387 |
free(session->proxy); |
| 388 |
session->proxy = strdup(http_proxy); |
| 389 |
dbg("http_proxy = %s\n", session->proxy); |
| 390 |
} |
| 391 |
|
| 392 |
parse_configfile(session); |
| 393 |
|
| 394 |
while (1) { |
| 395 |
option = getopt_long_only(argc, argv, "dqe:p:P:H:a:h", |
| 396 |
options, NULL); |
| 397 |
if (option == -1) |
| 398 |
break; |
| 399 |
switch (option) { |
| 400 |
case 'd': |
| 401 |
debug = 1; |
| 402 |
break; |
| 403 |
case 'a': |
| 404 |
if (session->account) |
| 405 |
free(session->account); |
| 406 |
session->account = strdup(optarg); |
| 407 |
dbg("account = %s\n", session->account); |
| 408 |
break; |
| 409 |
case 'p': |
| 410 |
if (session->password) |
| 411 |
free(session->password); |
| 412 |
session->password = strdup(optarg); |
| 413 |
dbg("password = %s\n", session->password); |
| 414 |
break; |
| 415 |
case 'P': |
| 416 |
if (session->proxy) |
| 417 |
free(session->proxy); |
| 418 |
session->proxy = strdup(optarg); |
| 419 |
dbg("proxy = %s\n", session->proxy); |
| 420 |
break; |
| 421 |
case 'H': |
| 422 |
if (strcasecmp(optarg, "twitter") == 0) |
| 423 |
session->host = HOST_TWITTER; |
| 424 |
if (strcasecmp(optarg, "identica") == 0) |
| 425 |
session->host = HOST_IDENTICA; |
| 426 |
dbg("host = %d\n", session->host); |
| 427 |
break; |
| 428 |
case 'b': |
| 429 |
session->bash= 1; |
| 430 |
break; |
| 431 |
case 'h': |
| 432 |
display_help(); |
| 433 |
goto exit; |
| 434 |
case 'v': |
| 435 |
display_version(); |
| 436 |
goto exit; |
| 437 |
default: |
| 438 |
display_help(); |
| 439 |
goto exit; |
| 440 |
} |
| 441 |
} |
| 442 |
|
| 443 |
if (!session->account) { |
| 444 |
fprintf(stdout, "Enter twitter account: "); |
| 445 |
session->account = get_string_from_stdin(); |
| 446 |
} |
| 447 |
|
| 448 |
if (!session->password) { |
| 449 |
fprintf(stdout, "Enter twitter password: "); |
| 450 |
session->password = get_string_from_stdin(); |
| 451 |
} |
| 452 |
#if 0 |
| 453 |
/* get the current working directory basename */ |
| 454 |
if (strcmp(pwd, home) == 0) |
| 455 |
dir = "~"; |
| 456 |
else { |
| 457 |
dir = strrchr(pwd, '/'); |
| 458 |
if (dir) |
| 459 |
dir++; |
| 460 |
else |
| 461 |
dir = "?"; |
| 462 |
} |
| 463 |
#endif |
| 464 |
tweet = get_string_from_stdin(); |
| 465 |
if (!tweet || strlen(tweet) == 0) { |
| 466 |
dbg("no tweet?\n"); |
| 467 |
return -1; |
| 468 |
} |
| 469 |
|
| 470 |
// session->tweet = zalloc(strlen(tweet) + strlen(dir) + 10); |
| 471 |
session->tweet = zalloc(strlen(tweet) + 10); |
| 472 |
|
| 473 |
/* if --bash is specified, add the "PWD $ " to |
| 474 |
* the start of the tweet. */ |
| 475 |
if (session->bash) |
| 476 |
// sprintf(session->tweet, "%s $ %s", dir, tweet); |
| 477 |
sprintf(session->tweet, "$ %s", tweet); |
| 478 |
else |
| 479 |
sprintf(session->tweet, "%s", tweet); |
| 480 |
free(tweet); |
| 481 |
|
| 482 |
dbg("account = %s\n", session->account); |
| 483 |
dbg("password = %s\n", session->password); |
| 484 |
dbg("tweet = %s\n", session->tweet); |
| 485 |
dbg("host = %d\n", session->host); |
| 486 |
|
| 487 |
/* fork ourself so that the main shell can get on |
| 488 |
* with it's life as we try to connect and handle everything |
| 489 |
*/ |
| 490 |
if (session->bash) { |
| 491 |
child = fork(); |
| 492 |
if (child) { |
| 493 |
dbg("child is %d\n", child); |
| 494 |
exit(0); |
| 495 |
} |
| 496 |
} |
| 497 |
|
| 498 |
retval = send_tweet(session); |
| 499 |
if (retval && !session->bash) { |
| 500 |
fprintf(stderr, "tweet failed\n"); |
| 501 |
return -1; |
| 502 |
} |
| 503 |
|
| 504 |
session_free(session); |
| 505 |
exit: |
| 506 |
return 0; |
| 507 |
} |
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