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* http.c (make_radix64_string): Add '=' padding as per standard.
(send_request, http_open, http_open_document): Clean up auth code. Can now support different auth for a proxy and the file being requested via that proxy. Unescape auth strings.
This commit is contained in:
David Shaw
parent
825d12638b
commit
c5a94d29ce
@ -1,3 +1,10 @@
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2005-06-23 David Shaw <dshaw@jabberwocky.com>
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* http.c (make_radix64_string): Add '=' padding as per standard.
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(send_request, http_open, http_open_document): Clean up auth code.
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Can now support different auth for a proxy and the file being
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requested via that proxy. Unescape auth strings.
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2005-06-22 David Shaw <dshaw@jabberwocky.com>
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* memrchr.c (memrchr): Not all compilers allow initializing based
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78
util/http.c
78
util/http.c
@ -1,5 +1,6 @@
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/* http.c - HTTP protocol handler
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* Copyright (C) 1999, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
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* Copyright (C) 1999, 2001, 2002, 2003, 2004,
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* 2005 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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@ -69,7 +70,7 @@ static int remove_escapes( byte *string );
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static int insert_escapes( byte *buffer, const byte *string,
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const byte *special );
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static URI_TUPLE parse_tuple( byte *string );
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static int send_request( HTTP_HD hd, const char *proxy, const char *proxyauth);
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static int send_request( HTTP_HD hd, const char *auth, const char *proxy );
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static byte *build_rel_path( PARSED_URI uri );
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static int parse_response( HTTP_HD hd );
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@ -117,8 +118,8 @@ static byte bintoasc[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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* create a radix64 encoded string.
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*/
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/* TODO: This is a duplicate of code in g10/armor.c. Better to use a
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single copy in strgutil.c */
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/* TODO: This is a duplicate of code in g10/armor.c modified to do the
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"=" padding. Better to use a single copy in strgutil.c ? */
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static char *
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make_radix64_string( const byte *data, size_t len )
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{
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@ -135,10 +136,13 @@ make_radix64_string( const byte *data, size_t len )
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*p++ = bintoasc[(data[0] >> 2) & 077];
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*p++ = bintoasc[(((data[0] <<4)&060)|((data[1] >> 4)&017))&077];
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*p++ = bintoasc[((data[1]<<2)&074)];
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*p++ = '=';
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}
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else if( len == 1 ) {
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*p++ = bintoasc[(data[0] >> 2) & 077];
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*p++ = bintoasc[(data[0] <<4)&060];
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*p++ = '=';
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*p++ = '=';
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}
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*p = 0;
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return buffer;
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@ -146,8 +150,7 @@ make_radix64_string( const byte *data, size_t len )
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int
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http_open( HTTP_HD hd, HTTP_REQ_TYPE reqtype, const char *url,
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const char *auth, unsigned int flags, const char *proxy,
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const char *proxyauth )
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char *auth, unsigned int flags, const char *proxy )
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{
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int rc;
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@ -163,9 +166,7 @@ http_open( HTTP_HD hd, HTTP_REQ_TYPE reqtype, const char *url,
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rc = parse_uri( &hd->uri, url );
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if( !rc ) {
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if(auth)
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hd->uri->auth=auth;
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rc = send_request( hd, proxy, proxyauth );
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rc = send_request( hd, auth, proxy );
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if( !rc ) {
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hd->fp_write = iobuf_sockopen( hd->sock , "w" );
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if( hd->fp_write )
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@ -228,13 +229,12 @@ http_wait_response( HTTP_HD hd, unsigned int *ret_status )
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int
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http_open_document( HTTP_HD hd, const char *document, const char *auth,
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unsigned int flags, const char *proxy,
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const char *proxyauth )
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http_open_document( HTTP_HD hd, const char *document, char *auth,
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unsigned int flags, const char *proxy )
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{
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int rc;
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rc = http_open(hd, HTTP_REQ_GET, document, auth, flags, proxy, proxyauth );
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rc = http_open(hd, HTTP_REQ_GET, document, auth, flags, proxy );
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if( rc )
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return rc;
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@ -507,13 +507,13 @@ parse_tuple( byte *string )
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* Returns 0 if the request was successful
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*/
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static int
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send_request( HTTP_HD hd, const char *proxy, const char *proxyauth )
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send_request( HTTP_HD hd, const char *auth, const char *proxy )
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{
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const byte *server;
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byte *request, *p;
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ushort port;
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int rc;
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char *auth=NULL;
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char *proxy_authstr=NULL,*authstr=NULL;
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server = *hd->uri->host? hd->uri->host : "localhost";
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port = hd->uri->port? hd->uri->port : 80;
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@ -531,29 +531,39 @@ send_request( HTTP_HD hd, const char *proxy, const char *proxyauth )
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}
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hd->sock = connect_server( *uri->host? uri->host : "localhost",
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uri->port? uri->port : 80, 0, NULL );
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if(proxyauth)
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uri->auth=proxyauth;
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if(uri->auth)
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{
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char *x=make_radix64_string(uri->auth,strlen(uri->auth));
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auth=m_alloc(52+strlen(x));
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sprintf(auth,"Proxy-Authorization: Basic %s==\r\n",x);
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char *x;
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remove_escapes(uri->auth);
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x=make_radix64_string(uri->auth,strlen(uri->auth));
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proxy_authstr=m_alloc(52+strlen(x));
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sprintf(proxy_authstr,"Proxy-Authorization: Basic %s\r\n",x);
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m_free(x);
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}
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release_parsed_uri( uri );
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}
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else
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hd->sock = connect_server( server, port, hd->flags, hd->uri->scheme );
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if(auth || hd->uri->auth)
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{
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hd->sock = connect_server( server, port, hd->flags, hd->uri->scheme );
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if(hd->uri->auth)
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char *x,*tempauth=NULL;
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if(auth)
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{
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char *x=make_radix64_string(hd->uri->auth,strlen(hd->uri->auth));
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auth=m_alloc(52+strlen(x));
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sprintf(auth,"Authorization: Basic %s==\r\n",x);
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m_free(x);
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tempauth=m_strdup(auth);
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remove_escapes(tempauth);
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}
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else if(hd->uri->auth)
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remove_escapes(hd->uri->auth);
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x=make_radix64_string(tempauth?tempauth:hd->uri->auth,
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strlen(tempauth?tempauth:hd->uri->auth));
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authstr=m_alloc(52+strlen(x));
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sprintf(authstr,"Authorization: Basic %s\r\n",x);
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m_free(x);
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m_free(tempauth);
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}
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if( hd->sock == -1 )
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@ -561,13 +571,16 @@ send_request( HTTP_HD hd, const char *proxy, const char *proxyauth )
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p = build_rel_path( hd->uri );
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request=m_alloc(strlen(server)*2 + strlen(p) + (auth?strlen(auth):0) + 65);
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request=m_alloc(strlen(server)*2 + strlen(p)
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+ (authstr?strlen(authstr):0)
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+ (proxy_authstr?strlen(proxy_authstr):0) + 65);
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if( proxy )
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sprintf( request, "%s http://%s:%hu%s%s HTTP/1.0\r\n%s",
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sprintf( request, "%s http://%s:%hu%s%s HTTP/1.0\r\n%s%s",
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hd->req_type == HTTP_REQ_GET ? "GET" :
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hd->req_type == HTTP_REQ_HEAD? "HEAD":
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hd->req_type == HTTP_REQ_POST? "POST": "OOPS",
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server, port, *p == '/'? "":"/", p, auth?auth:"" );
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server, port, *p == '/'? "":"/", p,
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authstr?authstr:"",proxy_authstr?proxy_authstr:"" );
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else
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{
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char portstr[15];
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@ -580,14 +593,15 @@ send_request( HTTP_HD hd, const char *proxy, const char *proxyauth )
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hd->req_type == HTTP_REQ_HEAD? "HEAD":
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hd->req_type == HTTP_REQ_POST? "POST": "OOPS",
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*p == '/'? "":"/", p, server, (port!=80)?portstr:"",
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auth?auth:"");
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authstr?authstr:"");
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}
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m_free(p);
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rc = write_server( hd->sock, request, strlen(request) );
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m_free( request );
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m_free(auth);
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m_free(proxy_authstr);
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m_free(authstr);
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return rc;
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}
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