/***************************************************************************\
* *
* BitlBee - An IRC to IM gateway *
* Base64 handling functions. encode_real() is mostly based on the y64 en- *
* coder from libyahoo2. Moving it to a new file because it's getting big. *
* *
* Copyright 2006 Wilmer van der Gaast <wilmer@gaast.net> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License along *
* with this program; if not, write to the Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
* *
\***************************************************************************/
#include <glib.h>
#include <string.h>
#include "base64.h"
static const char real_b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
char *tobase64(const char *text)
{
return base64_encode((const unsigned char *)text, strlen(text));
}
char *base64_encode(const unsigned char *in, int len)
pre { line-height: 125%; }
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* libyahoo2: yahoo_httplib.c
*
* Copyright (C) 2002-2004, Philip S Tellis <philip.tellis AT gmx.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <stdio.h>
#include <stdlib.h>
#if STDC_HEADERS
# include <string.h>
#else
# if !HAVE_STRCHR
# define strchr index
# define strrchr rindex
# endif
char *strchr(), *strrchr();
# if !HAVE_MEMCPY
# define memcpy(d, s, n) bcopy((s), (d), (n))
# define memmove(d, s, n) bcopy((s), (d), (n))
# endif
#endif
#include <errno.h>
#include <unistd.h>
#include <ctype.h>
#include "yahoo2.h"
#include "yahoo2_callbacks.h"
#include "yahoo_httplib.h"
#include "yahoo_util.h"
#include "yahoo_debug.h"
#ifdef __MINGW32__
# include <winsock2.h>
# define snprintf _snprintf
#endif
#ifdef USE_STRUCT_CALLBACKS
extern struct yahoo_callbacks *yc;
#define YAHOO_CALLBACK(x) yc->x
#else
#define YAHOO_CALLBACK(x) x
#endif
extern enum yahoo_log_level log_level;
#if 0
int yahoo_tcp_readline(char *ptr, int maxlen, void *fd)
{
int n, rc;
char c;
for (n = 1; n < maxlen; n++) {
do {
rc = YAHOO_CALLBACK (ext_yahoo_read) (fd, &c, 1);
} while (rc == -1 && (errno == EINTR || errno == EAGAIN)); /* this is bad - it should be done asynchronously */
if (rc == 1) {
if (c == '\r') { /* get rid of \r */
continue;
}
*ptr = c;
if (c == '\n') {
break;
}
ptr++;
} else if (rc == 0) {
if (n == 1) {
return (0); /* EOF, no data */
} else {
break; /* EOF, w/ data */
}
} else {
return -1;
}
}
*ptr = 0;
return (n);
}
#endif
static int url_to_host_port_path(const char *url,
char *host, int *port, char *path, int *ssl)
{
char *urlcopy = NULL;
char *slash = NULL;
char *colon = NULL;
/*
* http://hostname
* http://hostname/
* http://hostname/path
* http://hostname/path:foo
* http://hostname:port
* http://hostname:port/
* http://hostname:port/path
* http://hostname:port/path:foo
* and https:// variants of the above
*/
if (strstr(url, "http://") == url) {
urlcopy = strdup(url + 7);
} else if (strstr(url, "https://") == url) {
urlcopy = strdup(url + 8);
*ssl = 1;
} else {
WARNING(("Weird url - unknown protocol: %s", url));
return 0;
}
slash = strchr(urlcopy, '/');
colon = strchr(urlcopy, ':');
if (!colon || (slash && slash < colon)) {
if (*ssl) {
*port = 443;
} else {
*port = 80;
}
} else {
*colon = 0;
*port = atoi(colon + 1);
}
if (!slash) {
strcpy(path, "/");
} else {
strcpy(path, slash);
*slash = 0;
}
strcpy(host, urlcopy);
FREE(urlcopy);
return 1;
}
static int isurlchar(unsigned char c)
{
return (g_ascii_isalnum(c));
}
char *yahoo_urlencode(const char *instr)
{
int ipos = 0, bpos = 0;
char *str = NULL;
int len = strlen(instr);
if (!(str = y_new(char, 3 * len + 1))) {
return "";
}
while (instr[ipos]) {
while (isurlchar(instr[ipos])) {
str[bpos++] = instr[ipos++];
}
if (!instr[ipos]) {
break;
}
snprintf(&str[bpos], 4, "%%%02x", instr[ipos] & 0xff);
bpos += 3;
ipos++;
}
str[bpos] = '\0';
/* free extra alloc'ed mem. */
len = strlen(str);
str = y_renew(char, str, len + 1);
return (str);
}
#if 0
char *yahoo_urldecode(const char *instr)
{
int ipos = 0, bpos = 0;
char *str = NULL;
char entity[3] = { 0, 0, 0 };
unsigned dec;
int len = strlen(instr);
if (!(str = y_new(char, len + 1))) {
return "";
}
while (instr[ipos]) {
while (instr[ipos] && instr[ipos] != '%') {
if (instr[ipos] == '+') {
str[bpos++] = ' ';
ipos++;
} else {
str[bpos++] = instr[ipos++];
}
}
if (!instr[ipos]) {
break;
}
if (instr[ipos + 1] && instr[ipos + 2]) {
ipos++;
entity[0] = instr[ipos++];
entity[1] = instr[ipos++];
sscanf(entity, "%2x", &dec);
str[bpos++] = (char) dec;
} else {
str[bpos++] = instr[ipos++];
}
}
str[bpos] = '\0';
/* free extra alloc'ed mem. */
len = strlen(str);
str = y_renew(char, str, len + 1);
return (str);
}
char *yahoo_xmldecode(const char *instr)
{
int ipos = 0, bpos = 0, epos = 0;
char *str = NULL;
char entity[4] = { 0, 0, 0, 0 };
char *entitymap[5][2] = {
{ "amp;", "&" },
{ "quot;", "\"" },
{ "lt;", "<" },
{ "gt;", "<" },
{ "nbsp;", " " }
};
unsigned dec;
int len = strlen(instr);
if (!(str = y_new(char, len + 1))) {
return "";
}
while (instr[ipos]) {
while (instr[ipos] && instr[ipos] != '&') {
if (instr[ipos] == '+') {
str[bpos++] = ' ';
ipos++;
} else {
str[bpos++] = instr[ipos++];
}
}
if (!instr[ipos] || !instr[ipos + 1]) {
break;
}
ipos++;
if (instr[ipos] == '#') {
ipos++;
epos = 0;
while (instr[ipos] != ';') {
entity[epos++] = instr[ipos++];
}
sscanf(entity, "%u", &dec);
str[bpos++] = (char) dec;
ipos++;
} else {
int i;
for (i = 0; i < 5; i++) {
if (!strncmp(instr + ipos, entitymap[i][0],
strlen(entitymap[i][0]))) {
str[bpos++] = entitymap[i][1][0];
ipos += strlen(entitymap[i][0]);
break;
}
}
}
}
str[bpos] = '\0';
/* free extra alloc'ed mem. */
len = strlen(str);
str = y_renew(char, str, len + 1);
return (str);
}
#endif
typedef void (*http_connected) (int id, void *fd, int error);
struct callback_data {
int id;
yahoo_get_fd_callback callback;
char *request;
void *user_data;
};
static void connect_complete(void *fd, int error, void *data)
{
struct callback_data *ccd = data;
if (error == 0) {
YAHOO_CALLBACK (ext_yahoo_write) (fd, ccd->request,
strlen(ccd->request));
}
free(ccd->request);
ccd->callback(ccd->id, fd, error, ccd->user_data);
FREE(ccd);
}
static void yahoo_send_http_request(int id, char *host, int port, char *request,
yahoo_get_fd_callback callback, void *data, int use_ssl)
{
struct callback_data *ccd = y_new0(struct callback_data, 1);
ccd->callback = callback;
ccd->id = id;
ccd->request = strdup(request);
ccd->user_data = data;
YAHOO_CALLBACK (ext_yahoo_connect_async) (id, host, port,
connect_complete, ccd, use_ssl);
}
void yahoo_http_post(int id, const char *url, const char *cookies,
long content_length, yahoo_get_fd_callback callback, void *data)
{
char host[255];
int port = 80;
char path[255];
char buff[1024];
int ssl = 0;
if (!url_to_host_port_path(url, host, &port, path, &ssl)) {
return;
}
/* thanks to kopete dumpcap */
snprintf(buff, sizeof(buff),
"POST %s HTTP/1.1\r\n"
"Cookie: %s\r\n"
"User-Agent: Mozilla/5.0\r\n"
"Host: %s\r\n"
"Content-Length: %ld\r\n"
"Cache-Control: no-cache\r\n"
"\r\n", path, cookies, host, content_length);
yahoo_send_http_request(id, host, port, buff, callback, data, ssl);
}
void yahoo_http_get(int id, const char *url, const char *cookies, int http11,
int keepalive, yahoo_get_fd_callback callback, void *data)
{
char host[255];
int port = 80;
char path[255];
char buff[2048];
char cookiebuff[1024];
int ssl = 0;
if (!url_to_host_port_path(url, host, &port, path, &ssl)) {
return;
}
/* Allow cases when we don't need to send a cookie */
if (cookies) {
snprintf(cookiebuff, sizeof(cookiebuff), "Cookie: %s\r\n",
cookies);
} else {
cookiebuff[0] = '\0';
}
snprintf(buff, sizeof(buff),
"GET %s HTTP/1.%s\r\n"
"%sHost: %s\r\n"
"User-Agent: Mozilla/4.5 [en] (" PACKAGE "/" VERSION ")\r\n"
"Accept: */*\r\n"
"%s" "\r\n", path, http11 ? "1" : "0", cookiebuff, host,
keepalive ? "Connection: Keep-Alive\r\n" : "Connection: close\r\n");
yahoo_send_http_request(id, host, port, buff, callback, data, ssl);
}
void yahoo_http_head(int id, const char *url, const char *cookies, int len,
char *payload, yahoo_get_fd_callback callback, void *data)
{
char host[255];
int port = 80;
char path[255];
char buff[2048];
char cookiebuff[1024];
int ssl = 0;
if (!url_to_host_port_path(url, host, &port, path, &ssl)) {
return;
}
/* Allow cases when we don't need to send a cookie */
if (cookies) {
snprintf(cookiebuff, sizeof(cookiebuff), "Cookie: %s\r\n",
cookies);
} else {
cookiebuff[0] = '\0';
}
snprintf(buff, sizeof(buff),
"HEAD %s HTTP/1.0\r\n"
"Accept: */*\r\n"
"Host: %s:%d\r\n"
"User-Agent: Mozilla/4.5 [en] (" PACKAGE "/" VERSION ")\r\n"
"%s"
"Content-Length: %d\r\n"
"Cache-Control: no-cache\r\n"
"\r\n%s", path, host, port, cookiebuff, len,
payload ? payload : "");
yahoo_send_http_request(id, host, port, buff, callback, data, ssl);
}
