diff options
Diffstat (limited to 'protocols/yahoo/yahoo_httplib.c')
| -rw-r--r-- | protocols/yahoo/yahoo_httplib.c | 437 |
1 files changed, 437 insertions, 0 deletions
diff --git a/protocols/yahoo/yahoo_httplib.c b/protocols/yahoo/yahoo_httplib.c new file mode 100644 index 00000000..41e31a23 --- /dev/null +++ b/protocols/yahoo/yahoo_httplib.c @@ -0,0 +1,437 @@ +/* + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#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> +#ifndef _WIN32 +#include <unistd.h> +#endif +#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 write(a,b,c) send(a,b,c,0) +# define read(a,b,c) recv(a,b,c,0) +# 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; + +int yahoo_tcp_readline(char *ptr, int maxlen, int fd) +{ + int n, rc; + char c; + + for (n = 1; n < maxlen; n++) { + + do { + rc = 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); +} + +static int url_to_host_port_path(const char *url, + char *host, int *port, char *path) +{ + 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 + */ + + if(strstr(url, "http://") == url) { + urlcopy = strdup(url+7); + } else { + WARNING(("Weird url - unknown protocol: %s", url)); + return 0; + } + + slash = strchr(urlcopy, '/'); + colon = strchr(urlcopy, ':'); + + if(!colon || (slash && slash < colon)) { + *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 (isalnum(c) || '-' == c || '_' == 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, "%%%.2x", instr[ipos]); + bpos+=3; + ipos++; + } + str[bpos]='\0'; + + /* free extra alloc'ed mem. */ + len = strlen(str); + str = y_renew(char, str, len+1); + + return (str); +} + +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); +} + +typedef void (*http_connected)(int id, int fd, int error); + +struct callback_data { + int id; + yahoo_get_fd_callback callback; + char *request; + void *user_data; +}; + +static void connect_complete(int fd, int error, void *data) +{ + struct callback_data *ccd = data; + if(error == 0 && fd > 0) + 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) +{ + 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); +} + +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]; + + if(!url_to_host_port_path(url, host, &port, path)) + return; + + snprintf(buff, sizeof(buff), + "POST %s HTTP/1.0\r\n" + "Content-length: %ld\r\n" + "User-Agent: Mozilla/4.5 [en] (" PACKAGE "/" VERSION ")\r\n" + "Host: %s:%d\r\n" + "Cookie: %s\r\n" + "\r\n", + path, content_length, + host, port, + cookies); + + yahoo_send_http_request(id, host, port, buff, callback, data); +} + +void yahoo_http_get(int id, const char *url, const char *cookies, + yahoo_get_fd_callback callback, void *data) +{ + char host[255]; + int port = 80; + char path[255]; + char buff[1024]; + + if(!url_to_host_port_path(url, host, &port, path)) + return; + + snprintf(buff, sizeof(buff), + "GET %s HTTP/1.0\r\n" + "Host: %s:%d\r\n" + "User-Agent: Mozilla/4.5 [en] (" PACKAGE "/" VERSION ")\r\n" + "Cookie: %s\r\n" + "\r\n", + path, host, port, cookies); + + yahoo_send_http_request(id, host, port, buff, callback, data); +} + +struct url_data { + yahoo_get_url_handle_callback callback; + void *user_data; +}; + +static void yahoo_got_url_fd(int id, int fd, int error, void *data) +{ + char *tmp=NULL; + char buff[1024]; + unsigned long filesize=0; + char *filename=NULL; + int n; + + struct url_data *ud = data; + + if(error || fd < 0) { + ud->callback(id, fd, error, filename, filesize, ud->user_data); + FREE(ud); + return; + } + + while((n=yahoo_tcp_readline(buff, sizeof(buff), fd)) > 0) { + LOG(("Read:%s:\n", buff)); + if(!strcmp(buff, "")) + break; + + if( !strncasecmp(buff, "Content-length:", + strlen("Content-length:")) ) { + tmp = strrchr(buff, ' '); + if(tmp) + filesize = atol(tmp); + } + + if( !strncasecmp(buff, "Content-disposition:", + strlen("Content-disposition:")) ) { + tmp = strstr(buff, "name="); + if(tmp) { + tmp+=strlen("name="); + if(tmp[0] == '"') { + char *tmp2; + tmp++; + tmp2 = strchr(tmp, '"'); + if(tmp2) + *tmp2 = '\0'; + } else { + char *tmp2; + tmp2 = strchr(tmp, ';'); + if(!tmp2) + tmp2 = strchr(tmp, '\r'); + if(!tmp2) + tmp2 = strchr(tmp, '\n'); + if(tmp2) + *tmp2 = '\0'; + } + + filename = strdup(tmp); + } + } + } + + LOG(("n == %d\n", n)); + LOG(("Calling callback, filename:%s, size: %ld\n", filename, filesize)); + ud->callback(id, fd, error, filename, filesize, ud->user_data); + FREE(ud); + FREE(filename); +} + +void yahoo_get_url_fd(int id, const char *url, const struct yahoo_data *yd, + yahoo_get_url_handle_callback callback, void *data) +{ + char buff[1024]; + struct url_data *ud = y_new0(struct url_data, 1); + snprintf(buff, sizeof(buff), "Y=%s; T=%s", yd->cookie_y, yd->cookie_t); + ud->callback = callback; + ud->user_data = data; + yahoo_http_get(id, url, buff, yahoo_got_url_fd, ud); +} + |