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/***************************************************************************\
* *
* BitlBee - An IRC to IM gateway *
* Simple module to facilitate twitter functionality. *
* *
* Copyright 2009 Geert Mulders <g.c.w.m.mulders@gmail.com> *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation, version *
* 2.1. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA *
* *
****************************************************************************/
/***************************************************************************\
* *
* Some functions within this file have been copied from other files within *
* BitlBee. *
* *
****************************************************************************/
#include "twitter.h"
#include "bitlbee.h"
#include "url.h"
#include "misc.h"
#include "base64.h"
#include "oauth.h"
#include <ctype.h>
#include <errno.h>
#include "twitter_http.h"
static char *twitter_url_append(char *url, char *key, char *value);
/**
* Do a request.
* This is actually pretty generic function... Perhaps it should move to the lib/http_client.c
*/
struct http_request *twitter_http(struct im_connection *ic, char *url_string, http_input_function func,
gpointer data, int is_post, char **arguments, int arguments_len)
{
struct twitter_data *td = ic->proto_data;
char *tmp;
GString *request = g_string_new("");
void *ret = NULL;
char *url_arguments;
url_t *base_url = NULL;
url_arguments = g_strdup("");
// Construct the url arguments.
if (arguments_len != 0) {
int i;
for (i = 0; i < arguments_len; i += 2) {
tmp = twitter_url_append(url_arguments, arguments[i], arguments[i + 1]);
g_free(url_arguments);
url_arguments = tmp;
}
}
if (strstr(url_string, "://")) {
base_url = g_new0(url_t, 1);
if (!url_set(base_url, url_string)) {
goto error;
}
}
// Make the request.
g_string_printf(request, "%s %s%s%s%s HTTP/1.1\r\n"
"Host: %s\r\n"
"User-Agent: BitlBee " BITLBEE_VERSION "\r\n",
is_post ? "POST" : "GET",
base_url ? base_url->file : td->url_path,
base_url ? "" : url_string,
is_post ? "" : "?", is_post ? "" : url_arguments,
base_url ? base_url->host : td->url_host);
// If a pass and user are given we append them to the request.
if (td->oauth_info) {
char *full_header;
char *full_url;
if (base_url) {
full_url = g_strdup(url_string);
} else {
full_url = g_strconcat(set_getstr(&ic->acc->set, "base_url"), url_string, NULL);
}
full_header = oauth_http_header(td->oauth_info, is_post ? "POST" : "GET",
full_url, url_arguments);
g_string_append_printf(request, "Authorization: %s\r\n", full_header);
g_free(full_header);
g_free(full_url);
} else {
char userpass[strlen(ic->acc->user) + 2 + strlen(ic->acc->pass)];
char *userpass_base64;
g_snprintf(userpass, sizeof(userpass), "%s:%s", ic->acc->user, ic->acc->pass);
userpass_base64 = base64_encode((unsigned char *) userpass, strlen(userpass));
g_string_append_printf(request, "Authorization: Basic %s\r\n", userpass_base64);
g_free(userpass_base64);
}
// Do POST stuff..
if (is_post) {
// Append the Content-Type and url-encoded arguments.
g_string_append_printf(request,
"Content-Type: application/x-www-form-urlencoded\r\n"
"Content-Length: %zd\r\n\r\n%s",
strlen(url_arguments), url_arguments);
} else {
// Append an extra \r\n to end the request...
g_string_append(request, "\r\n");
}
if (base_url) {
ret = http_dorequest(base_url->host, base_url->port, base_url->proto == PROTO_HTTPS, request->str, func,
data);
} else {
ret = http_dorequest(td->url_host, td->url_port, td->url_ssl, request->str, func, data);
}
error:
g_free(url_arguments);
g_string_free(request, TRUE);
g_free(base_url);
return ret;
}
struct http_request *twitter_http_f(struct im_connection *ic, char *url_string, http_input_function func,
gpointer data, int is_post, char **arguments, int arguments_len,
twitter_http_flags_t flags)
{
struct http_request *ret = twitter_http(ic, url_string, func, data, is_post, arguments, arguments_len);
if (ret) {
ret->flags |= flags;
}
return ret;
}
static char *twitter_url_append(char *url, char *key, char *value)
{
char *key_encoded = g_strndup(key, 3 * strlen(key));
http_encode(key_encoded);
char *value_encoded = g_strndup(value, 3 * strlen(value));
http_encode(value_encoded);
char *retval;
if (strlen(url) != 0) {
retval = g_strdup_printf("%s&%s=%s", url, key_encoded, value_encoded);
} else {
retval = g_strdup_printf("%s=%s", key_encoded, value_encoded);
}
g_free(key_encoded);
g_free(value_encoded);
return retval;
}
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