]> git.sesse.net Git - vlc/blobdiff - src/misc/httpd.c
* src/extras/libc.c: Implemented a wrapper around fork() and execve()
[vlc] / src / misc / httpd.c
index 88a0676156337a8d23a0f1b3db800400bf6e8a9c..22e1685ef2032523567dd81419406eec07334677 100644 (file)
@@ -364,8 +364,8 @@ static void b64_decode( char *dest, char *src )
 
 static struct
 {
-    char *psz_ext;
-    char *psz_mime;
+    const char *psz_ext;
+    const char *psz_mime;
 } http_mime[] =
 {
     { ".htm",   "text/html" },
@@ -409,7 +409,7 @@ static struct
     /* end */
     { NULL,     NULL }
 };
-static char *httpd_MimeFromUrl( char *psz_url )
+static const char *httpd_MimeFromUrl( const char *psz_url )
 {
 
     char *psz_ext;
@@ -431,7 +431,7 @@ static char *httpd_MimeFromUrl( char *psz_url )
 }
 
 /*****************************************************************************
- * High Level Funtions: httpd_file_t
+ * High Level Functions: httpd_file_t
  *****************************************************************************/
 struct httpd_file_t
 {
@@ -449,6 +449,9 @@ struct httpd_file_t
 static int httpd_FileCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl, httpd_message_t *answer, httpd_message_t *query )
 {
     httpd_file_t *file = (httpd_file_t*)p_sys;
+    uint8_t *psz_args = query->psz_args;
+    uint8_t **pp_body, *p_body;
+    int *pi_body, i_body;
 
     if( answer == NULL || query == NULL )
     {
@@ -466,15 +469,30 @@ static int httpd_FileCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl,
 
     if( query->i_type != HTTPD_MSG_HEAD )
     {
-        uint8_t *psz_args = query->psz_args;
-        if( query->i_type == HTTPD_MSG_POST )
-        {
-            /* Check that */
-            psz_args = query->p_body;
-        }
-        file->pf_fill( file->p_sys, file, psz_args, &answer->p_body,
-                       &answer->i_body );
+        pp_body = &answer->p_body;
+        pi_body = &answer->i_body;
+    }
+    else
+    {
+        /* The file still needs to be executed. */
+        p_body = NULL;
+        i_body = 0;
+        pp_body = &p_body;
+        pi_body = &i_body;
+    }
+
+    if( query->i_type == HTTPD_MSG_POST )
+    {
+        /* msg_Warn not supported */
+    }
+
+    file->pf_fill( file->p_sys, file, psz_args, pp_body, pi_body );
+
+    if( query->i_type == HTTPD_MSG_HEAD && p_body != NULL )
+    {
+        free( p_body );
     }
+
     /* We respect client request */
     if( strcmp( httpd_MsgGet( &cl->query, "Connection" ), "" ) )
     {
@@ -489,8 +507,8 @@ static int httpd_FileCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl,
 
 
 httpd_file_t *httpd_FileNew( httpd_host_t *host,
-                             char *psz_url, char *psz_mime,
-                             char *psz_user, char *psz_password,
+                             const char *psz_url, const char *psz_mime,
+                             const char *psz_user, const char *psz_password,
                              const vlc_acl_t *p_acl, httpd_file_callback_t pf_fill,
                              httpd_file_sys_t *p_sys )
 {
@@ -538,7 +556,165 @@ void httpd_FileDelete( httpd_file_t *file )
 }
 
 /*****************************************************************************
- * High Level Funtions: httpd_redirect_t
+ * High Level Functions: httpd_handler_t (for CGIs)
+ *****************************************************************************/
+struct httpd_handler_t
+{
+    httpd_url_t *url;
+
+    httpd_handler_callback_t pf_fill;
+    httpd_handler_sys_t      *p_sys;
+
+};
+
+static int httpd_HandlerCallBack( httpd_callback_sys_t *p_sys, httpd_client_t *cl, httpd_message_t *answer, httpd_message_t *query )
+{
+    httpd_handler_t *handler = (httpd_handler_t*)p_sys;
+    uint8_t *psz_args = query->psz_args;
+    char psz_remote_addr[100];
+
+    if( answer == NULL || query == NULL )
+    {
+        return VLC_SUCCESS;
+    }
+    answer->i_proto  = HTTPD_PROTO_NONE;
+    answer->i_type   = HTTPD_MSG_ANSWER;
+
+    /* We do it ourselves, thanks */
+    answer->i_status = 0;
+    answer->psz_status = NULL;
+
+    switch( cl->sock.ss_family )
+    {
+#ifdef HAVE_INET_PTON
+    case AF_INET:
+        inet_ntop( cl->sock.ss_family,
+                   &((struct sockaddr_in *)&cl->sock)->sin_addr,
+                   psz_remote_addr, sizeof(psz_remote_addr) );
+        break;
+    case AF_INET6:
+        inet_ntop( cl->sock.ss_family,
+                   &((struct sockaddr_in6 *)&cl->sock)->sin6_addr,
+                   psz_remote_addr, sizeof(psz_remote_addr) );
+        break;
+#else
+    case AF_INET:
+    {
+        char *psz_tmp = inet_ntoa( ((struct sockaddr_in *)&cl->sock)->sin_addr );
+        strncpy( psz_remote_addr, psz_tmp, sizeof(psz_remote_addr) );
+        break;
+    }
+#endif
+    default:
+        psz_remote_addr[0] = '\0';
+    }
+
+    handler->pf_fill( handler->p_sys, handler, query->psz_url, psz_args,
+                      query->i_type, query->p_body, query->i_body,
+                      psz_remote_addr, NULL,
+                      &answer->p_body, &answer->i_body );
+
+    if( query->i_type == HTTPD_MSG_HEAD )
+    {
+        char *p = answer->p_body;
+        while ( (p = strchr( p, '\r' )) != NULL )
+        {
+            if( p[1] && p[1] == '\n' && p[2] && p[2] == '\r'
+                 && p[3] && p[3] == '\n' )
+            {
+                break;
+            }
+        }
+        if( p != NULL )
+        {
+            p[4] = '\0';
+            answer->i_body = strlen(answer->p_body) + 1;
+            answer->p_body = realloc( answer->p_body, answer->i_body );
+        }
+    }
+
+    if( strncmp( answer->p_body, "HTTP/1.", 7 ) )
+    {
+        int i_status, i_headers;
+        char *psz_headers, *psz_new, *psz_status;
+        char psz_code[12];
+        if( !strncmp( answer->p_body, "Status: ", 8 ) )
+        {
+            /* Apache-style */
+            i_status = strtol( &answer->p_body[8], &psz_headers, 0 );
+            if( *psz_headers ) psz_headers++;
+            if( *psz_headers ) psz_headers++;
+            i_headers = answer->i_body - (psz_headers - (char *)answer->p_body);
+        }
+        else
+        {
+            i_status = 200;
+            psz_headers = answer->p_body;
+            i_headers = answer->i_body;
+        }
+        switch( i_status )
+        {
+        case 200:
+            psz_status = "OK";
+            break;
+        case 401:
+            psz_status = "Unauthorized";
+            break;
+        default:
+            psz_status = "Undefined";
+            break;
+        }
+        snprintf( psz_code, sizeof(psz_code), "%d", i_status );
+        answer->i_body = sizeof("HTTP/1.0  \r\n") + strlen(psz_code)
+                           + strlen(psz_status) + i_headers - 1;
+        psz_new = malloc( answer->i_body + 1);
+        sprintf( psz_new, "HTTP/1.0 %s %s\r\n", psz_code, psz_status );
+        memcpy( &psz_new[strlen(psz_new)], psz_headers, i_headers );
+        free( answer->p_body );
+        answer->p_body = psz_new;
+    }
+
+    return VLC_SUCCESS;
+}
+
+httpd_handler_t *httpd_HandlerNew( httpd_host_t *host, const char *psz_url,
+                                   const char *psz_user,
+                                   const char *psz_password,
+                                   const vlc_acl_t *p_acl,
+                                   httpd_handler_callback_t pf_fill,
+                                   httpd_handler_sys_t *p_sys )
+{
+    httpd_handler_t *handler = malloc( sizeof( httpd_handler_t ) );
+
+    if( ( handler->url = httpd_UrlNewUnique( host, psz_url, psz_user,
+                                             psz_password, p_acl )
+        ) == NULL )
+    {
+        free( handler );
+        return NULL;
+    }
+
+    handler->pf_fill = pf_fill;
+    handler->p_sys   = p_sys;
+
+    httpd_UrlCatch( handler->url, HTTPD_MSG_HEAD, httpd_HandlerCallBack,
+                    (httpd_callback_sys_t*)handler );
+    httpd_UrlCatch( handler->url, HTTPD_MSG_GET,  httpd_HandlerCallBack,
+                    (httpd_callback_sys_t*)handler );
+    httpd_UrlCatch( handler->url, HTTPD_MSG_POST, httpd_HandlerCallBack,
+                    (httpd_callback_sys_t*)handler );
+
+    return handler;
+}
+
+void httpd_HandlerDelete( httpd_handler_t *handler )
+{
+    httpd_UrlDelete( handler->url );
+    free( handler );
+}
+
+/*****************************************************************************
+ * High Level Functions: httpd_redirect_t
  *****************************************************************************/
 struct httpd_redirect_t
 {
@@ -565,7 +741,7 @@ static int httpd_RedirectCallBack( httpd_callback_sys_t *p_sys,
 
     p = answer->p_body = malloc( 1000 + strlen( rdir->psz_dst ) );
     p += sprintf( (char *)p,
-        "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n"
+        "<?xml version=\"1.0\" encoding=\"ascii\" ?>\n"
         "<!DOCTYPE html PUBLIC \"-//W3C//DTD  XHTML 1.0 Strict//EN\" "
         "\"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
         "<html>\n"
@@ -573,7 +749,7 @@ static int httpd_RedirectCallBack( httpd_callback_sys_t *p_sys,
         "<title>Redirection</title>\n"
         "</head>\n"
         "<body>\n"
-        "<h1>You should be "
+        "<h1>You should be " 
         "<a href=\"%s\">redirected</a></h1>\n"
         "<hr />\n"
         "<p><a href=\"http://www.videolan.org\">VideoLAN</a>\n</p>"
@@ -590,8 +766,8 @@ static int httpd_RedirectCallBack( httpd_callback_sys_t *p_sys,
     return VLC_SUCCESS;
 }
 
-httpd_redirect_t *httpd_RedirectNew( httpd_host_t *host, char *psz_url_dst,
-                                     char *psz_url_src )
+httpd_redirect_t *httpd_RedirectNew( httpd_host_t *host, const char *psz_url_dst,
+                                     const char *psz_url_src )
 {
     httpd_redirect_t *rdir = malloc( sizeof( httpd_redirect_t ) );
 
@@ -769,8 +945,8 @@ static int httpd_StreamCallBack( httpd_callback_sys_t *p_sys,
 }
 
 httpd_stream_t *httpd_StreamNew( httpd_host_t *host,
-                                 char *psz_url, char *psz_mime,
-                                 char *psz_user, char *psz_password,
+                                 const char *psz_url, const char *psz_mime,
+                                 const char *psz_user, const char *psz_password,
                                  const vlc_acl_t *p_acl )
 {
     httpd_stream_t *stream = malloc( sizeof( httpd_stream_t ) );
@@ -901,6 +1077,9 @@ httpd_host_t *httpd_TLSHostNew( vlc_object_t *p_this, const char *psz_hostname,
     vlc_value_t  lockval;
     int i;
 
+    if( psz_hostname == NULL )
+        psz_hostname = "";
+
     psz_host = strdup( psz_hostname );
     if( psz_host == NULL )
     {
@@ -1099,8 +1278,8 @@ void httpd_HostDelete( httpd_host_t *host )
 }
 
 /* register a new url */
-static httpd_url_t *httpd_UrlNewPrivate( httpd_host_t *host, char *psz_url,
-                                         char *psz_user, char *psz_password,
+static httpd_url_t *httpd_UrlNewPrivate( httpd_host_t *host, const char *psz_url,
+                                         const char *psz_user, const char *psz_password,
                                          const vlc_acl_t *p_acl, vlc_bool_t b_check )
 {
     httpd_url_t *url;
@@ -1141,16 +1320,16 @@ static httpd_url_t *httpd_UrlNewPrivate( httpd_host_t *host, char *psz_url,
     return url;
 }
 
-httpd_url_t *httpd_UrlNew( httpd_host_t *host, char *psz_url,
-                           char *psz_user, char *psz_password,
+httpd_url_t *httpd_UrlNew( httpd_host_t *host, const char *psz_url,
+                           const char *psz_user, const char *psz_password,
                            const vlc_acl_t *p_acl )
 {
     return httpd_UrlNewPrivate( host, psz_url, psz_user,
                                 psz_password, p_acl, VLC_FALSE );
 }
 
-httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, char *psz_url,
-                                 char *psz_user, char *psz_password,
+httpd_url_t *httpd_UrlNewUnique( httpd_host_t *host, const char *psz_url,
+                                 const char *psz_user, const char *psz_password,
                                  const vlc_acl_t *p_acl )
 {
     return httpd_UrlNewPrivate( host, psz_url, psz_user,
@@ -1326,20 +1505,14 @@ void httpd_ClientModeBidir( httpd_client_t *cl )
     cl->i_mode   = HTTPD_CLIENT_BIDIR;
 }
 
-char* httpd_ClientIP( httpd_client_t *cl )
+char* httpd_ClientIP( httpd_client_t *cl, char *psz_ip )
 {
-    int i;
-    char *psz_ip = malloc( NI_MAXNUMERICHOST );
-
-    if( psz_ip == NULL )
-        return NULL;
-
-    i = vlc_getnameinfo( (const struct sockaddr *)&cl->sock, cl->i_sock_size,
-                         psz_ip, NI_MAXNUMERICHOST, NULL, NI_NUMERICHOST );
-    if( i )
-        return NULL;
+    return net_GetPeerAddress( cl->fd, psz_ip, NULL ) ? NULL : psz_ip;
+}
 
-    return psz_ip;
+char* httpd_ServerIP( httpd_client_t *cl, char *psz_ip )
+{
+    return net_GetSockAddress( cl->fd, psz_ip, NULL ) ? NULL : psz_ip;
 }
 
 static void httpd_ClientClean( httpd_client_t *cl )
@@ -1410,7 +1583,7 @@ static void httpd_ClientRecv( httpd_client_t *cl )
 
     if( cl->query.i_proto == HTTPD_PROTO_NONE )
     {
-        /* enought to see if it's rtp over rtsp or RTSP/HTTP */
+        /* enough to see if it's rtp over rtsp or RTSP/HTTP */
         i_len = httpd_NetRecv( cl, &cl->p_buffer[cl->i_buffer],
                                4 - cl->i_buffer );
         if( i_len > 0 )
@@ -1784,7 +1957,7 @@ static void httpd_ClientSend( httpd_client_t *cl )
 
     i_len = httpd_NetSend( cl, &cl->p_buffer[cl->i_buffer],
                            cl->i_buffer_size - cl->i_buffer );
-    if( i_len > 0 )
+    if( i_len >= 0 )
     {
         cl->i_activity_date = mdate();
         cl->i_buffer += i_len;
@@ -2029,7 +2202,7 @@ static void httpd_HostThread( httpd_host_t *host )
                         p = answer->p_body = malloc( 1000 );
 
                         p += sprintf( (char *)p,
-                            "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>"
+                            "<?xml version=\"1.0\" encoding=\"ascii\" ?>"
                             "<!DOCTYPE html PUBLIC \"-//W3C//DTD  XHTML 1.0 Strict//EN\" "
                             "\"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
                             "<html>\n"
@@ -2067,17 +2240,18 @@ static void httpd_HostThread( httpd_host_t *host )
                             {
                                 if( answer && ( url->p_acl != NULL ) )
                                 {
-                                    char *ip = httpd_ClientIP( cl );
-                                    if( ip != NULL )
+                                    char ip[NI_MAXNUMERICHOST];
+
+                                    if( httpd_ClientIP( cl, ip ) != NULL )
                                     {
                                         if( ACL_Check( url->p_acl, ip ) )
                                         {
                                             b_hosts_failed = VLC_TRUE;
-                                            free( ip );
                                             break;
                                         }
-                                        free( ip );
                                     }
+                                    else
+                                        b_hosts_failed = VLC_TRUE;
                                 }
 
                                 if( answer && ( *url->psz_user || *url->psz_password ) )
@@ -2119,6 +2293,14 @@ static void httpd_HostThread( httpd_host_t *host )
 
                                 if( !url->catch[i_msg].cb( url->catch[i_msg].p_sys, cl, answer, query ) )
                                 {
+                                    if( answer->i_proto == HTTPD_PROTO_NONE )
+                                    {
+                                        /* Raw answer from a CGI */
+                                        cl->i_buffer = cl->i_buffer_size;
+                                    }
+                                    else
+                                        cl->i_buffer = -1;
+
                                     /* only one url can answer */
                                     answer = NULL;
                                     if( cl->url == NULL )
@@ -2145,7 +2327,7 @@ static void httpd_HostThread( httpd_host_t *host )
 
                             /* FIXME: lots of code duplication */
                             p += sprintf( (char *)p,
-                                "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>"
+                                "<?xml version=\"1.0\" encoding=\"ascii\" ?>"
                                 "<!DOCTYPE html PUBLIC \"-//W3C//DTD  XHTML 1.0 Strict//EN\" "
                                 "\"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
                                 "<html>\n"
@@ -2165,7 +2347,7 @@ static void httpd_HostThread( httpd_host_t *host )
                             answer->psz_status = strdup( "Authorization Required" );
 
                             p += sprintf( (char *)p,
-                                "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>"
+                                "<?xml version=\"1.0\" encoding=\"ascii\" ?>"
                                 "<!DOCTYPE html PUBLIC \"-//W3C//DTD  XHTML 1.0 Strict//EN\" "
                                 "\"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
                                 "<html>\n"
@@ -2186,7 +2368,7 @@ static void httpd_HostThread( httpd_host_t *host )
                             answer->psz_status = strdup( "Not found" );
 
                             p += sprintf( (char *)p,
-                                "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>"
+                                "<?xml version=\"1.0\" encoding=\"ascii\" ?>"
                                 "<!DOCTYPE html PUBLIC \"-//W3C//DTD  XHTML 1.0 Strict//EN\" "
                                 "\"http://www.w3.org/TR/xhtml10/DTD/xhtml10strict.dtd\">\n"
                                 "<html>\n"
@@ -2202,9 +2384,10 @@ static void httpd_HostThread( httpd_host_t *host )
                         }
 
                         answer->i_body = p - answer->p_body;
+                        cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
                         httpd_MsgAdd( answer, "Content-Length", "%d", answer->i_body );
                     }
-                    cl->i_buffer = -1;  /* Force the creation of the answer in httpd_ClientSend */
+
                     cl->i_state = HTTPD_CLIENT_SENDING;
                 }
             }
@@ -2451,7 +2634,9 @@ int httpd_UrlCatch( httpd_url_t *a, int b, httpd_callback_t c,
                     httpd_callback_sys_t *d ){ return 0; }
 void httpd_UrlDelete( httpd_url_t *a ){}
 
-char *httpd_ClientIP( httpd_client_t *a ){ return 0; }
+char* httpd_ClientIP( httpd_client_t *cl, char *psz_ip ) { return NULL; }
+char* httpd_ServerIP( httpd_client_t *cl, char *psz_ip ) { return NULL; }
+
 void httpd_ClientModeStream( httpd_client_t *a ){}
 void httpd_ClientModeBidir( httpd_client_t *a ){}