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This is the 1.3.x current proxy into 2.0 - first stage

Browse Source 
PR:
Obtained from: Sam Magnuson
Submitted by:  Chuck Murcko
Reviewed by:


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@86923 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Chuck Murcko
2000-11-11 11:07:03 +00:00
parent adebe63463
commit 31c42a957c
3 changed files with 637 additions and 587 deletions
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104
modules/proxy/proxy_connect.c
View File

@@ -58,13 +58,12 @@
/* CONNECT method for Apache proxy */
#include "apr_strings.h"
#include "mod_proxy.h"
#include "http_log.h"
#include "http_main.h"
#ifdef HAVE_BSTRING_H
#include <bstring.h> /* for IRIX, FD_SET calls bzero() */
#include <bstring.h> /* for IRIX, FD_SET calls bzero() */
#endif
/*
@@ -104,15 +103,15 @@ allowed_port(proxy_server_conf *conf, int port)
int *list = (int *) conf->allowed_connect_ports->elts;
for(i = 0; i < conf->allowed_connect_ports->nelts; i++) {
if(port == list[i])
return 1;
if(port == list[i])
return 1;
}
return 0;
}
int ap_proxy_connect_handler(request_rec *r, ap_cache_el *c, char *url,
const char *proxyhost, int proxyport)
const char *proxyhost, int proxyport)
{
struct in_addr destaddr;
const char *host;
@@ -123,7 +122,7 @@ int ap_proxy_connect_handler(request_rec *r, ap_cache_el *c, char *url,
int nbytes, i;
BUFF *sock_buff;
apr_socket_t *client_sock=NULL;
apr_socket_t *client_sock = NULL;
apr_pollfd_t *pollfd;
apr_int32_t pollcnt;
apr_int16_t pollevent;
@@ -137,77 +136,80 @@ int ap_proxy_connect_handler(request_rec *r, ap_cache_el *c, char *url,
host = url;
p = strchr(url, ':');
if (p == NULL)
port = DEFAULT_HTTPS_PORT;
port = DEFAULT_HTTPS_PORT;
else {
port = atoi(p + 1);
*p = '\0';
port = atoi(p + 1);
*p = '\0';
}
/* check if ProxyBlock directive on this host */
destaddr.s_addr = apr_inet_addr(host);
destaddr.s_addr = ap_inet_addr(host);
for (i = 0; i < conf->noproxies->nelts; i++) {
if ((npent[i].name != NULL && ap_strstr_c(host, npent[i].name) != NULL)
|| destaddr.s_addr == npent[i].addr.s_addr || npent[i].name[0] == '*')
return ap_proxyerror(r, HTTP_FORBIDDEN,
"Connect to remote machine blocked");
if ((npent[i].name != NULL && ap_strstr_c(host, npent[i].name) != NULL)
|| destaddr.s_addr == npent[i].addr.s_addr || npent[i].name[0] == '*')
return ap_proxyerror(r, HTTP_FORBIDDEN,
"Connect to remote machine blocked");
}
/* Check if it is an allowed port */
if (conf->allowed_connect_ports->nelts == 0) {
/* Default setting if not overridden by AllowCONNECT */
switch (port) {
case DEFAULT_HTTPS_PORT:
case DEFAULT_SNEWS_PORT:
break;
default:
return HTTP_FORBIDDEN;
}
/* Default setting if not overridden by AllowCONNECT */
switch (port) {
case DEFAULT_HTTPS_PORT:
case DEFAULT_SNEWS_PORT:
break;
default:
return HTTP_FORBIDDEN;
}
} else if(!allowed_port(conf, port))
return HTTP_FORBIDDEN;
return HTTP_FORBIDDEN;
if (proxyhost) {
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, NULL,
"CONNECT to remote proxy %s on port %d", proxyhost, proxyport);
"CONNECT to remote proxy %s on port %d", proxyhost, proxyport);
}
else {
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, NULL,
"CONNECT to %s on port %d", host, port);
"CONNECT to %s on port %d", host, port);
}
if ((apr_create_tcp_socket(&sock, r->pool)) != APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"proxy: error creating socket");
"proxy: error creating socket");
return HTTP_INTERNAL_SERVER_ERROR;
}
if (ap_proxy_doconnect(sock, (char *)(proxyhost ? proxyhost : host), proxyport ? proxyport : port, r) == -1) {
if (ap_proxy_doconnect(sock, (char *)(proxyhost ? proxyhost : host),
proxyport ? proxyport : port, r) == -1) {
apr_close_socket(sock);
return ap_proxyerror(r, HTTP_INTERNAL_SERVER_ERROR,
apr_pstrcat(r->pool, "Could not connect to remote machine:<br>",
strerror(errno), NULL));
apr_pstrcat(r->pool, "Could not connect to remote machine:<br>",
strerror(errno), NULL));
}
/* If we are connecting through a remote proxy, we need to pass
* the CONNECT request on to it.
*/
if (proxyport) {
/* FIXME: We should not be calling write() directly, but we currently
* have no alternative. Error checking ignored. Also, we force
* a HTTP/1.0 request to keep things simple.
*/
/* FIXME: We should not be calling write() directly, but we currently
* have no alternative. Error checking ignored. Also, we force
* a HTTP/1.0 request to keep things simple.
*/
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, NULL,
"Sending the CONNECT request to the remote proxy");
nbytes = apr_snprintf(buffer, sizeof(buffer), "CONNECT %s HTTP/1.0" CRLF, r->uri);
"Sending the CONNECT request to the remote proxy");
nbytes = apr_snprintf(buffer, sizeof(buffer),
"CONNECT %s HTTP/1.0" CRLF, r->uri);
apr_send(sock, buffer, &nbytes);
nbytes = apr_snprintf(buffer, sizeof(buffer),"Proxy-agent: %s" CRLF CRLF, ap_get_server_version());
nbytes = apr_snprintf(buffer, sizeof(buffer),
"Proxy-agent: %s" CRLF CRLF, ap_get_server_version());
apr_send(sock, buffer, &nbytes);
}
else {
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, NULL,
"Returning 200 OK Status");
ap_rvputs(r, "HTTP/1.0 200 Connection established" CRLF, NULL);
ap_rvputs(r, "Proxy-agent: ", ap_get_server_version(), CRLF CRLF, NULL);
ap_bflush(r->connection->client);
"Returning 200 OK Status");
ap_rvputs(r, "HTTP/1.0 200 Connection established" CRLF, NULL);
ap_rvputs(r, "Proxy-agent: ", ap_get_server_version(), CRLF CRLF, NULL);
ap_bflush(r->connection->client);
}
sock_buff = ap_bcreate(r->pool, B_RDWR);
@@ -215,7 +217,8 @@ int ap_proxy_connect_handler(request_rec *r, ap_cache_el *c, char *url,
if(apr_setup_poll(&pollfd, 2, r->pool) != APR_SUCCESS)
{
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, "proxy: error apr_setup_poll()");
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"proxy: error apr_setup_poll()");
return HTTP_INTERNAL_SERVER_ERROR;
}
@@ -226,20 +229,21 @@ int ap_proxy_connect_handler(request_rec *r, ap_cache_el *c, char *url,
just see if a recv gives us anything and do the same to sock (server) side, I'll leave this as TBD so
one can decide the best path to take
*/
if(apr_put_os_sock(&client_sock, (apr_os_sock_t *)get_socket(r->connection->client),
if(apr_put_os_sock(&client_sock,
(apr_os_sock_t *)get_socket(r->connection->client),
r->pool) != APR_SUCCESS)
{
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, "proxy: error creating client apr_socket_t");
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"proxy: error creating client apr_socket_t");
return HTTP_INTERNAL_SERVER_ERROR;
}
apr_add_poll_socket(pollfd, client_sock, APR_POLLIN);
#endif
/* Add the server side to the poll */
apr_add_poll_socket(pollfd, sock, APR_POLLIN);
while (1) { /* Infinite loop until error (one side closes the connection) */
while (1) { /* Infinite loop until error (one side closes the connection) */
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, NULL, "Going to sleep (poll)");
if(apr_poll(pollfd, &pollcnt, -1) != APR_SUCCESS)
{
@@ -262,8 +266,7 @@ int ap_proxy_connect_handler(request_rec *r, ap_cache_el *c, char *url,
o += i;
nbytes -= i;
}
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, NULL,
"Wrote %d bytes to client", nbytes);
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, NULL, "Wrote %d bytes to client", nbytes);
}
else
break;
@@ -273,7 +276,8 @@ int ap_proxy_connect_handler(request_rec *r, ap_cache_el *c, char *url,
if (pollevent & APR_POLLIN) {
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, NULL,
"client was set");
if(ap_bread(r->connection->client, buffer, HUGE_STRING_LEN, &nbytes) == APR_SUCCESS) {
if(ap_bread(r->connection->client, buffer, HUGE_STRING_LEN,
&nbytes) == APR_SUCCESS) {
int o = 0;
while(nbytes)
{
@@ -281,8 +285,8 @@ int ap_proxy_connect_handler(request_rec *r, ap_cache_el *c, char *url,
o += i;
nbytes -= i;
}
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, NULL,
"Wrote %d bytes to server", nbytes);
ap_log_error(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0,
NULL, "Wrote %d bytes to server", nbytes);
}
else
break;

329
modules/proxy/proxy_http.c
View File

@@ -58,7 +58,6 @@
/* HTTP routines for Apache proxy */
#include "apr_strings.h"
#include "mod_proxy.h"
#include "http_log.h"
#include "http_main.h"
@@ -83,7 +82,7 @@ int ap_proxy_http_canon(request_rec *r, char *url, const char *scheme, int def_p
port = def_port;
err = ap_proxy_canon_netloc(r->pool, &url, NULL, NULL, &host, &port);
if (err)
return HTTP_BAD_REQUEST;
return HTTP_BAD_REQUEST;
/* now parse path/search args, according to rfc1738 */
/* N.B. if this isn't a true proxy request, then the URL _path_
@@ -91,25 +90,25 @@ int ap_proxy_http_canon(request_rec *r, char *url, const char *scheme, int def_p
* == r->unparsed_uri, and no others have that property.
*/
if (r->uri == r->unparsed_uri) {
search = strchr(url, '?');
if (search != NULL)
*(search++) = '\0';
search = strchr(url, '?');
if (search != NULL)
*(search++) = '\0';
}
else
search = r->args;
search = r->args;
/* process path */
path = ap_proxy_canonenc(r->pool, url, strlen(url), enc_path, r->proxyreq);
if (path == NULL)
return HTTP_BAD_REQUEST;
return HTTP_BAD_REQUEST;
if (port != def_port)
apr_snprintf(sport, sizeof(sport), ":%d", port);
apr_snprintf(sport, sizeof(sport), ":%d", port);
else
sport[0] = '\0';
sport[0] = '\0';
r->filename = apr_pstrcat(r->pool, "proxy:", scheme, "://", host, sport, "/",
path, (search) ? "?" : "", (search) ? search : "", NULL);
path, (search) ? "?" : "", (search) ? search : "", NULL);
return OK;
}
@@ -135,7 +134,7 @@ static const char *proxy_location_reverse_map(request_rec *r, const char *url)
return url;
}
/* Clear all connection-based headers from the incoming headers apr_table_t */
/* Clear all connection-based headers from the incoming headers table */
static void clear_connection(apr_pool_t *p, apr_table_t *headers)
{
const char *name;
@@ -143,17 +142,17 @@ static void clear_connection(apr_pool_t *p, apr_table_t *headers)
apr_table_unset(headers, "Proxy-Connection");
if (!next)
return;
return;
while (*next) {
name = next;
while (*next && !apr_isspace(*next) && (*next != ','))
++next;
while (*next && (apr_isspace(*next) || (*next == ','))) {
*next = '\0';
++next;
}
apr_table_unset(headers, name);
name = next;
while (*next && !apr_isspace(*next) && (*next != ','))
++next;
while (*next && (apr_isspace(*next) || (*next == ','))) {
*next = '\0';
++next;
}
apr_table_unset(headers, name);
}
apr_table_unset(headers, "Connection");
}
@@ -167,34 +166,34 @@ static void clear_connection(apr_pool_t *p, apr_table_t *headers)
* we return DECLINED so that we can try another proxy. (Or the direct
* route.)
*/
int ap_proxy_http_handler(request_rec *r, ap_cache_el *c, char *url,
const char *proxyhost, int proxyport)
int ap_proxy_http_handler(request_rec *r, ap_cache_el *c, char *url,
const char *proxyhost, int proxyport)
{
const char *strp;
char *strp2;
char *desthost;
apr_socket_t *sock;
int i, len, backasswards, content_length=-1;
int i, len, backasswards, content_length = -1;
apr_array_header_t *reqhdrs_arr;
apr_table_t *resp_hdrs=NULL;
apr_table_t *resp_hdrs = NULL;
apr_table_entry_t *reqhdrs;
struct sockaddr_in server;
struct in_addr destaddr;
BUFF *f;
apr_file_t *cachefp=NULL;
char buffer[HUGE_STRING_LEN];
char portstr[32];
apr_pool_t *p = r->pool;
const long int zero = 0L;
int destport = 0;
apr_ssize_t cntr;
char *destportstr = NULL;
const char *urlptr = NULL;
char *datestr, *clen;
apr_ssize_t cntr;
apr_file_t *cachefp = NULL;
void *sconf = r->server->module_config;
proxy_server_conf *conf =
(proxy_server_conf *) ap_get_module_config(sconf, &proxy_module);
(proxy_server_conf *) ap_get_module_config(sconf, &proxy_module);
struct noproxy_entry *npent = (struct noproxy_entry *) conf->noproxies->elts;
struct nocache_entry *ncent = (struct nocache_entry *) conf->nocaches->elts;
int nocache = 0;
@@ -206,38 +205,40 @@ int ap_proxy_http_handler(request_rec *r, ap_cache_el *c, char *url,
urlptr = strstr(url, "://");
if (urlptr == NULL)
return HTTP_BAD_REQUEST;
return HTTP_BAD_REQUEST;
urlptr += 3;
destport = DEFAULT_HTTP_PORT;
strp = ap_strchr_c(urlptr, '/');
if (strp == NULL) {
desthost = apr_pstrdup(p, urlptr);
urlptr = "/";
desthost = apr_pstrdup(p, urlptr);
urlptr = "/";
}
else {
char *q = apr_palloc(p, strp - urlptr + 1);
memcpy(q, urlptr, strp - urlptr);
q[strp - urlptr] = '\0';
urlptr = strp;
desthost = q;
char *q = apr_palloc(p, strp - urlptr + 1);
memcpy(q, urlptr, strp - urlptr);
q[strp - urlptr] = '\0';
urlptr = strp;
desthost = q;
}
strp2 = ap_strchr(desthost, ':');
if (strp2 != NULL) {
*(strp2++) = '\0';
if (apr_isdigit(*strp2)) {
destport = atoi(strp2);
destportstr = strp2;
}
*(strp2++) = '\0';
if (apr_isdigit(*strp2)) {
destport = atoi(strp2);
destportstr = strp2;
}
}
/* check if ProxyBlock directive on this host */
destaddr.s_addr = apr_inet_addr(desthost);
for (i = 0; i < conf->noproxies->nelts; i++) {
if ((npent[i].name != NULL && ap_strstr_c(desthost, npent[i].name) != NULL)
|| destaddr.s_addr == npent[i].addr.s_addr || npent[i].name[0] == '*')
return ap_proxyerror(r, HTTP_FORBIDDEN,
"Connect to remote machine blocked");
if ((npent[i].name != NULL
&& ap_strstr_c(desthost, npent[i].name) != NULL)
|| destaddr.s_addr == npent[i].addr.s_addr
|| npent[i].name[0] == '*')
return ap_proxyerror(r, HTTP_FORBIDDEN,
"Connect to remote machine blocked");
}
if ((apr_create_tcp_socket(&sock, r->pool)) != APR_SUCCESS) {
@@ -246,10 +247,13 @@ int ap_proxy_http_handler(request_rec *r, ap_cache_el *c, char *url,
return HTTP_INTERNAL_SERVER_ERROR;
}
if (conf->recv_buffer_size > 0 && apr_setsocketopt(sock, APR_SO_RCVBUF,conf->recv_buffer_size)) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"setsockopt(SO_RCVBUF): Failed to set ProxyReceiveBufferSize, using default");
#if !defined(TPF) && !defined(BEOS)
if (conf->recv_buffer_size > 0 && apr_setsocketopt(sock, APR_SO_RCVBUF,
conf->recv_buffer_size)) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"setsockopt(SO_RCVBUF): Failed to set ProxyReceiveBufferSize, using default");
}
#endif
if (proxyhost != NULL) {
i = ap_proxy_doconnect(sock, (char *)proxyhost, proxyport, r);
@@ -259,147 +263,148 @@ int ap_proxy_http_handler(request_rec *r, ap_cache_el *c, char *url,
}
if (i == -1) {
if (proxyhost != NULL)
return DECLINED; /* try again another way */
else
return ap_proxyerror(r, HTTP_BAD_GATEWAY,
apr_pstrcat(r->pool, "Could not connect to remote machine: ",
strerror(errno), NULL));
if (proxyhost != NULL)
return DECLINED; /* try again another way */
else
return ap_proxyerror(r, HTTP_BAD_GATEWAY, apr_pstrcat(r->pool,
"Could not connect to remote machine: ",
strerror(errno), NULL));
}
clear_connection(r->pool, r->headers_in); /* Strip connection-based headers */
clear_connection(r->pool, r->headers_in); /* Strip connection-based headers */
f = ap_bcreate(p, B_RDWR);
ap_bpush_socket(f, sock);
ap_bvputs(f, r->method, " ", proxyhost ? url : urlptr, " HTTP/1.0" CRLF,
NULL);
NULL);
if (destportstr != NULL && destport != DEFAULT_HTTP_PORT)
ap_bvputs(f, "Host: ", desthost, ":", destportstr, CRLF, NULL);
ap_bvputs(f, "Host: ", desthost, ":", destportstr, CRLF, NULL);
else
ap_bvputs(f, "Host: ", desthost, CRLF, NULL);
ap_bvputs(f, "Host: ", desthost, CRLF, NULL);
if (conf->viaopt == via_block) {
/* Block all outgoing Via: headers */
apr_table_unset(r->headers_in, "Via");
/* Block all outgoing Via: headers */
apr_table_unset(r->headers_in, "Via");
} else if (conf->viaopt != via_off) {
/* Create a "Via:" request header entry and merge it */
i = ap_get_server_port(r);
if (ap_is_default_port(i,r)) {
strcpy(portstr,"");
} else {
apr_snprintf(portstr, sizeof portstr, ":%d", i);
}
/* Generate outgoing Via: header with/without server comment: */
apr_table_mergen(r->headers_in, "Via",
(conf->viaopt == via_full)
? apr_psprintf(p, "%d.%d %s%s (%s)",
HTTP_VERSION_MAJOR(r->proto_num),
HTTP_VERSION_MINOR(r->proto_num),
ap_get_server_name(r), portstr,
AP_SERVER_BASEVERSION)
: apr_psprintf(p, "%d.%d %s%s",
HTTP_VERSION_MAJOR(r->proto_num),
HTTP_VERSION_MINOR(r->proto_num),
ap_get_server_name(r), portstr)
);
/* Create a "Via:" request header entry and merge it */
i = ap_get_server_port(r);
if (ap_is_default_port(i,r)) {
strcpy(portstr,"");
} else {
apr_snprintf(portstr, sizeof portstr, ":%d", i);
}
/* Generate outgoing Via: header with/without server comment: */
ap_table_mergen(r->headers_in, "Via",
(conf->viaopt == via_full)
? apr_psprintf(p, "%d.%d %s%s (%s)",
HTTP_VERSION_MAJOR(r->proto_num),
HTTP_VERSION_MINOR(r->proto_num),
ap_get_server_name(r), portstr,
AP_SERVER_BASEVERSION)
: apr_psprintf(p, "%d.%d %s%s",
HTTP_VERSION_MAJOR(r->proto_num),
HTTP_VERSION_MINOR(r->proto_num),
ap_get_server_name(r), portstr)
);
}
reqhdrs_arr = apr_table_elts(r->headers_in);
reqhdrs = (apr_table_entry_t *) reqhdrs_arr->elts;
for (i = 0; i < reqhdrs_arr->nelts; i++) {
if (reqhdrs[i].key == NULL || reqhdrs[i].val == NULL
/* Clear out headers not to send */
|| !strcasecmp(reqhdrs[i].key, "Host") /* Already sent */
/* XXX: @@@ FIXME: "Proxy-Authorization" should *only* be
* suppressed if THIS server requested the authentication,
* not when a frontend proxy requested it!
*/
|| !strcasecmp(reqhdrs[i].key, "Proxy-Authorization"))
continue;
ap_bvputs(f, reqhdrs[i].key, ": ", reqhdrs[i].val, CRLF, NULL);
if (reqhdrs[i].key == NULL || reqhdrs[i].val == NULL
/* Clear out headers not to send */
|| !strcasecmp(reqhdrs[i].key, "Host") /* Already sent */
/* XXX: @@@ FIXME: "Proxy-Authorization" should *only* be
* suppressed if THIS server requested the authentication,
* not when a frontend proxy requested it!
*/
|| !strcasecmp(reqhdrs[i].key, "Proxy-Authorization"))
continue;
ap_bvputs(f, reqhdrs[i].key, ": ", reqhdrs[i].val, CRLF, NULL);
}
ap_bputs(CRLF, f);
/* send the request data, if any. */
if (ap_should_client_block(r)) {
while ((i = ap_get_client_block(r, buffer, sizeof buffer)) > 0)
ap_bwrite(f, buffer, i, &cntr);
while ((i = ap_get_client_block(r, buffer, sizeof buffer)) > 0)
ap_bwrite(f, buffer, i, &cntr);
}
ap_bflush(f);
len = ap_bgets(buffer, sizeof buffer - 1, f);
if (len == -1) {
ap_bclose(f);
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"ap_bgets() - proxy receive - Error reading from remote server %s (length %d)",
proxyhost ? proxyhost : desthost, len);
return ap_proxyerror(r, HTTP_BAD_GATEWAY,
"Error reading from remote server");
ap_bclose(f);
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"ap_bgets() - proxy receive - Error reading from remote server %s (length %d)",
proxyhost ? proxyhost : desthost, len);
return ap_proxyerror(r, HTTP_BAD_GATEWAY,
"Error reading from remote server");
} else if (len == 0) {
ap_bclose(f);
return ap_proxyerror(r, HTTP_BAD_GATEWAY,
"Document contains no data");
ap_bclose(f);
return ap_proxyerror(r, HTTP_BAD_GATEWAY,
"Document contains no data");
}
/* Is it an HTTP/1 response? This is buggy if we ever see an HTTP/1.10 */
if (ap_checkmask(buffer, "HTTP/#.# ###*")) {
int major, minor;
if (2 != sscanf(buffer, "HTTP/%u.%u", &major, &minor)) {
major = 1;
minor = 0;
}
int major, minor;
if (2 != sscanf(buffer, "HTTP/%u.%u", &major, &minor)) {
major = 1;
minor = 0;
}
/* If not an HTTP/1 message or if the status line was > 8192 bytes */
if (buffer[5] != '1' || buffer[len - 1] != '\n') {
ap_bclose(f);
return HTTP_BAD_GATEWAY;
}
backasswards = 0;
buffer[--len] = '\0';
if (buffer[5] != '1' || buffer[len - 1] != '\n') {
ap_bclose(f);
return HTTP_BAD_GATEWAY;
}
backasswards = 0;
buffer[--len] = '\0';
buffer[12] = '\0';
r->status = atoi(&buffer[9]);
buffer[12] = ' ';
r->status_line = apr_pstrdup(p, &buffer[9]);
buffer[12] = '\0';
r->status = atoi(&buffer[9]);
buffer[12] = ' ';
r->status_line = apr_pstrdup(p, &buffer[9]);
/* read the headers. */
/* N.B. for HTTP/1.0 clients, we have to fold line-wrapped headers */
/* Also, take care with headers with multiple occurences. */
resp_hdrs = ap_proxy_read_headers(r, buffer, HUGE_STRING_LEN, f);
if (resp_hdrs == NULL) {
ap_log_error(APLOG_MARK, APLOG_WARNING|APLOG_NOERRNO, 0, r->server,
"proxy: Bad HTTP/%d.%d header returned by %s (%s)",
major, minor, r->uri, r->method);
nocache = 1; /* do not cache this broken file */
}
resp_hdrs = ap_proxy_read_headers(r, buffer, HUGE_STRING_LEN, f);
if (resp_hdrs == NULL) {
ap_log_error(APLOG_MARK, APLOG_WARNING|APLOG_NOERRNO, 0, r->server,
"proxy: Bad HTTP/%d.%d header returned by %s (%s)",
major, minor, r->uri, r->method);
nocache = 1; /* do not cache this broken file */
}
else
{
clear_connection(p, resp_hdrs); /* Strip Connection hdrs */
ap_cache_el_header_merge(c, resp_hdrs);
}
if (conf->viaopt != via_off && conf->viaopt != via_block) {
/* Create a "Via:" response header entry and merge it */
i = ap_get_server_port(r);
if (ap_is_default_port(i,r)) {
strcpy(portstr,"");
} else {
apr_snprintf(portstr, sizeof portstr, ":%d", i);
}
if (conf->viaopt != via_off && conf->viaopt != via_block) {
/* Create a "Via:" response header entry and merge it */
i = ap_get_server_port(r);
if (ap_is_default_port(i,r)) {
strcpy(portstr,"");
} else {
apr_snprintf(portstr, sizeof portstr, ":%d", i);
}
ap_cache_el_header_add(c, "Via", (conf->viaopt == via_full)
? apr_psprintf(p, "%d.%d %s%s (%s)", major, minor,
ap_get_server_name(r), portstr, AP_SERVER_BASEVERSION)
: apr_psprintf(p, "%d.%d %s%s", major, minor, ap_get_server_name(r), portstr)
);
}
? apr_psprintf(p, "%d.%d %s%s (%s)", major, minor,
ap_get_server_name(r), portstr, AP_SERVER_BASEVERSION)
: apr_psprintf(p, "%d.%d %s%s", major, minor,
ap_get_server_name(r), portstr));
}
}
else {
/* an http/0.9 response */
backasswards = 1;
r->status = 200;
r->status_line = "200 OK";
backasswards = 1;
r->status = 200;
r->status_line = "200 OK";
}
/*
@@ -423,9 +428,9 @@ int ap_proxy_http_handler(request_rec *r, ap_cache_el *c, char *url,
content_length = atoi(clen ? clen : "-1");
for (i = 0; i < conf->nocaches->nelts; i++) {
if ((ncent[i].name != NULL && ap_strstr_c(desthost, ncent[i].name) != NULL)
|| destaddr.s_addr == ncent[i].addr.s_addr || ncent[i].name[0] == '*')
nocache = 1;
if ((ncent[i].name != NULL && ap_strstr_c(desthost, ncent[i].name) != NULL)
|| destaddr.s_addr == ncent[i].addr.s_addr || ncent[i].name[0] == '*')
nocache = 1;
}
if(nocache || !ap_proxy_cache_should_cache(r, resp_hdrs, !backasswards))
@@ -435,32 +440,32 @@ int ap_proxy_http_handler(request_rec *r, ap_cache_el *c, char *url,
/* write status line */
if (!r->assbackwards)
ap_rvputs(r, "HTTP/1.0 ", r->status_line, CRLF, NULL);
if (cachefp && apr_puts(apr_pstrcat(r->pool, "HTTP/1.0 ", r->status_line, CRLF, NULL), cachefp) != APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"proxy: error writing status line to cache");
ap_proxy_cache_error(&c);
cachefp = NULL;
ap_rvputs(r, "HTTP/1.0 ", r->status_line, CRLF, NULL);
if (cachefp && apr_puts(apr_pstrcat(r->pool, "HTTP/1.0 ",
r->status_line, CRLF, NULL), cachefp) != APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"proxy: error writing status line to cache");
ap_proxy_cache_error(&c);
cachefp = NULL;
}
/* send headers */
ap_cache_el_header_walk(c, ap_proxy_send_hdr_line, r, NULL);
if (!r->assbackwards)
ap_rputs(CRLF, r);
ap_rputs(CRLF, r);
ap_bsetopt(r->connection->client, BO_BYTECT, &zero);
r->sent_bodyct = 1;
/* Is it an HTTP/0.9 respose? If so, send the extra data */
/* Is it an HTTP/0.9 response? If so, send the extra data */
if (backasswards) {
ap_bwrite(r->connection->client, buffer, len, &cntr);
ap_bwrite(r->connection->client, buffer, len, &cntr);
cntr = len;
if (cachefp && apr_write(cachefp, buffer, &cntr) != APR_SUCCESS) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"proxy: error writing extra data to cache %ld",
(long)cachefp);
ap_proxy_cache_error(&c);
}
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"proxy: error writing extra data to cache");
ap_proxy_cache_error(&c);
}
}
#ifdef CHARSET_EBCDIC
@@ -471,14 +476,14 @@ int ap_proxy_http_handler(request_rec *r, ap_cache_el *c, char *url,
ap_bsetflag(r->connection->client, B_ASCII2EBCDIC|B_EBCDIC2ASCII, 0);
#endif
/* send body */
/* if header only, then cache will be NULL */
/* HTTP/1.0 tells us to read to EOF, rather than content-length bytes */
/* send body */
/* if header only, then cache will be NULL */
/* HTTP/1.0 tells us to read to EOF, rather than content-length bytes */
if (!r->header_only) {
proxy_completion pc;
pc.content_length = content_length;
pc.cache_completion = conf->cache_completion;
ap_proxy_send_fb(&pc, f, r, c);
proxy_completion pc;
pc.content_length = content_length;
pc.cache_completion = conf->cache_completion;
ap_proxy_send_fb(&pc, f, r, c);
}
ap_bclose(f);

753
modules/proxy/proxy_util.c
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