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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 |
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* 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> |
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#include <stdlib.h> |
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#include <stddef.h> |
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#include <string.h> |
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#include <getopt.h> |
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#include <errno.h> |
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#include <ctype.h> |
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#include <fcntl.h> |
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#include <unistd.h> |
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#include <sys/stat.h> |
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#include <curl/curl.h> |
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#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 { \ |
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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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|
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struct session { |
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char *password; |
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char *account; |
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char *tweet; |
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int bash; |
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enum host host; |
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}; |
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|
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struct bti_curl_buffer { |
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char *data; |
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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, " --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)); |
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if (!session) |
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return NULL; |
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return session; |
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} |
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|
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static void session_free(struct session *session) |
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{ |
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if (!session) |
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return; |
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free(session->password); |
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free(session->account); |
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free(session->tweet); |
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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) |
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{ |
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struct bti_curl_buffer *buffer; |
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|
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buffer = zalloc(sizeof(*buffer)); |
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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; |
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} |
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|
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static void bti_curl_buffer_free(struct bti_curl_buffer *buffer) |
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{ |
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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) |
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{ |
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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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|
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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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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 (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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|
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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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|
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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 *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. */ |
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if (config_file == NULL) |
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return; |
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|
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do { |
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ssize_t n = getline(&line, &len, config_file); |
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if (n < 0) |
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break; |
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if (line[n - 1] == '\n') |
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line[n - 1] = '\0'; |
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/* Parse file. Format is the usual value pairs: |
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account=name |
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passwort=value |
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# is a comment character |
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*/ |
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*strchrnul(line, '#') = '\0'; |
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char *c = line; |
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while (isspace(*c)) |
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c++; |
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/* Ignore blank lines. */ |
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if (c[0] == '\0') |
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continue; |
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|
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if (!strncasecmp(c, "account", 7) && (c[7] == '=')) { |
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c += 8; |
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if (c[0] != '\0') |
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account = strdup(c); |
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} else if (!strncasecmp(c, "password", 8) && |
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(c[8] == '=')) { |
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c += 9; |
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if (c[0] != '\0') |
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password = strdup(c); |
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} else if (!strncasecmp(c, "host", 4) && |
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(c[4] == '=')) { |
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c += 5; |
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if (c[0] != '\0') |
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host = strdup(c); |
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} |
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} while (!feof(config_file)); |
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|
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if (password) |
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session->password = password; |
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if (account) |
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session->account = account; |
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if (host) { |
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if (strcasecmp(host, "twitter") == 0) |
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session->host = HOST_TWITTER; |
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if (strcasecmp(host, "identica") == 0) |
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session->host = HOST_IDENTICA; |
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free(host); |
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} |
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|
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/* Free buffer and close file. */ |
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free(line); |
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fclose(config_file); |
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} |
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|
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int main(int argc, char *argv[], char *envp[]) |
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{ |
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static const struct option options[] = { |
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{ "debug", 0, NULL, 'd' }, |
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{ "account", 1, NULL, 'a' }, |
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{ "password", 1, NULL, 'p' }, |
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{ "host", 1, NULL, 'H' }, |
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{ "help", 0, NULL, 'h' }, |
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{ "bash", 0, NULL, 'b' }, |
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{ "version", 0, NULL, 'v' }, |
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{ } |
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}; |
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struct session *session; |
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pid_t child; |
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char *tweet; |
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int retval; |
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int option; |
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#if 0 |
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char *home = getenv("HOME"); |
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char *pwd = getenv("PWD"); |
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char *dir; |
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#endif |
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session = session_alloc(); |
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if (!session) { |
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fprintf(stderr, "no more memory...\n"); |
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return -1; |
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} |
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|
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curl_global_init(CURL_GLOBAL_ALL); |
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parse_configfile(session); |
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|
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while (1) { |
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option = getopt_long_only(argc, argv, "dqe:p:H:a:h", |
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options, NULL); |
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if (option == -1) |
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break; |
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switch (option) { |
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case 'd': |
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debug = 1; |
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break; |
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case 'a': |
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if (session->account) |
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free(session->account); |
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session->account = strdup(optarg); |
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dbg("account = %s\n", session->account); |
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break; |
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case 'p': |
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if (session->password) |
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free(session->password); |
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session->password = strdup(optarg); |
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dbg("password = %s\n", session->password); |
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break; |
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case 'H': |
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if (strcasecmp(optarg, "twitter") == 0) |
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session->host = HOST_TWITTER; |
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if (strcasecmp(optarg, "identica") == 0) |
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session->host = HOST_IDENTICA; |
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dbg("host = %d\n", session->host); |
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break; |
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case 'b': |
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session->bash= 1; |
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break; |
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case 'h': |
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display_help(); |
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goto exit; |
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case 'v': |
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display_version(); |
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goto exit; |
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default: |
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display_help(); |
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goto exit; |
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} |
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} |
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|
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if (!session->account) { |
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fprintf(stdout, "Enter twitter account: "); |
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session->account = get_string_from_stdin(); |
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} |
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|
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if (!session->password) { |
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fprintf(stdout, "Enter twitter password: "); |
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session->password = get_string_from_stdin(); |
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} |
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#if 0 |
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/* get the current working directory basename */ |
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if (strcmp(pwd, home) == 0) |
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dir = "~"; |
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else { |
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dir = strrchr(pwd, '/'); |
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if (dir) |
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dir++; |
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else |
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dir = "?"; |
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} |
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#endif |
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tweet = get_string_from_stdin(); |
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if (strlen(tweet) == 0) { |
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dbg("no tweet?\n"); |
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return -1; |
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} |
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|
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// session->tweet = zalloc(strlen(tweet) + strlen(dir) + 10); |
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session->tweet = zalloc(strlen(tweet) + 10); |
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|
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/* if --bash is specified, add the "PWD $ " to |
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* the start of the tweet. */ |
| 431 |
if (session->bash) |
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// sprintf(session->tweet, "%s $ %s", dir, tweet); |
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sprintf(session->tweet, "$ %s", tweet); |
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else |
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sprintf(session->tweet, "%s", tweet); |
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free(tweet); |
| 437 |
|
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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 |
} |
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