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mod_cgid/mod_cgi: further upstream consolidation patches

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This commit is contained in:
Joe Orton 2019-10-04 16:47:09 +01:00
parent 5f6c5adf6f
commit aaba8b57e0
2 changed files with 455 additions and 118 deletions
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568
httpd-2.4.41-r1828172+.patch
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@ -1,9 +1,12 @@
# ./pullrev.sh 1828172 1862968 1863191 1867878 1867882 # ./pullrev.sh 1828172 1862968 1863191 1867878 1867882 1867968 1867970 1867971
http://svn.apache.org/viewvc?view=revision&revision=1828172 http://svn.apache.org/viewvc?view=revision&revision=1828172
http://svn.apache.org/viewvc?view=revision&revision=1862968 http://svn.apache.org/viewvc?view=revision&revision=1862968
http://svn.apache.org/viewvc?view=revision&revision=1863191 http://svn.apache.org/viewvc?view=revision&revision=1863191
http://svn.apache.org/viewvc?view=revision&revision=1867878 http://svn.apache.org/viewvc?view=revision&revision=1867878
http://svn.apache.org/viewvc?view=revision&revision=1867882 http://svn.apache.org/viewvc?view=revision&revision=1867882
http://svn.apache.org/viewvc?view=revision&revision=1867968
http://svn.apache.org/viewvc?view=revision&revision=1867970
http://svn.apache.org/viewvc?view=revision&revision=1867971
--- httpd-2.4.41/modules/generators/mod_cgi.c --- httpd-2.4.41/modules/generators/mod_cgi.c
+++ httpd-2.4.41/modules/generators/mod_cgi.c +++ httpd-2.4.41/modules/generators/mod_cgi.c
@ -89,9 +92,31 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
} }
} }
} }
@@ -563,189 +590,7 @@ @@ -541,212 +568,10 @@
return APR_SUCCESS;
} }
-static void discard_script_output(apr_bucket_brigade *bb)
-{
- apr_bucket *e;
- const char *buf;
- apr_size_t len;
- apr_status_t rv;
-
- for (e = APR_BRIGADE_FIRST(bb);
- e != APR_BRIGADE_SENTINEL(bb);
- e = APR_BUCKET_NEXT(e))
- {
- if (APR_BUCKET_IS_EOS(e)) {
- break;
- }
- rv = apr_bucket_read(e, &buf, &len, APR_BLOCK_READ);
- if (rv != APR_SUCCESS) {
- break;
- }
- }
-}
-
#if APR_FILES_AS_SOCKETS #if APR_FILES_AS_SOCKETS
- -
-/* A CGI bucket type is needed to catch any output to stderr from the -/* A CGI bucket type is needed to catch any output to stderr from the
@ -276,11 +301,13 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
- apr_bucket_copy_notimpl - apr_bucket_copy_notimpl
-}; -};
- -
+#include "cgi_common.h" +#define WANT_CGI_BUCKET
#endif #endif
+#include "cgi_common.h"
static int cgi_handler(request_rec *r) static int cgi_handler(request_rec *r)
@@ -766,6 +611,8 @@ {
@@ -766,6 +591,8 @@
apr_status_t rv; apr_status_t rv;
cgi_exec_info_t e_info; cgi_exec_info_t e_info;
conn_rec *c; conn_rec *c;
@ -289,7 +316,7 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
if (strcmp(r->handler, CGI_MAGIC_TYPE) && strcmp(r->handler, "cgi-script")) { if (strcmp(r->handler, CGI_MAGIC_TYPE) && strcmp(r->handler, "cgi-script")) {
return DECLINED; return DECLINED;
@@ -925,10 +772,7 @@ @@ -925,10 +752,7 @@
AP_DEBUG_ASSERT(script_in != NULL); AP_DEBUG_ASSERT(script_in != NULL);
#if APR_FILES_AS_SOCKETS #if APR_FILES_AS_SOCKETS
@ -301,25 +328,120 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
if (b == NULL) if (b == NULL)
return HTTP_INTERNAL_SERVER_ERROR; return HTTP_INTERNAL_SERVER_ERROR;
#else #else
@@ -985,7 +829,7 @@ @@ -938,111 +762,7 @@
* stderr output, as normal. */ b = apr_bucket_eos_create(c->bucket_alloc);
discard_script_output(bb); APR_BRIGADE_INSERT_TAIL(bb, b);
apr_brigade_destroy(bb);
- /* Handle script return... */
- if (!nph) {
- const char *location;
- char sbuf[MAX_STRING_LEN];
- int ret;
-
- if ((ret = ap_scan_script_header_err_brigade_ex(r, bb, sbuf,
- APLOG_MODULE_INDEX)))
- {
- ret = log_script(r, conf, ret, dbuf, sbuf, bb, script_err);
-
- /*
- * ret could be HTTP_NOT_MODIFIED in the case that the CGI script
- * does not set an explicit status and ap_meets_conditions, which
- * is called by ap_scan_script_header_err_brigade, detects that
- * the conditions of the requests are met and the response is
- * not modified.
- * In this case set r->status and return OK in order to prevent
- * running through the error processing stack as this would
- * break with mod_cache, if the conditions had been set by
- * mod_cache itself to validate a stale entity.
- * BTW: We circumvent the error processing stack anyway if the
- * CGI script set an explicit status code (whatever it is) and
- * the only possible values for ret here are:
- *
- * HTTP_NOT_MODIFIED (set by ap_meets_conditions)
- * HTTP_PRECONDITION_FAILED (set by ap_meets_conditions)
- * HTTP_INTERNAL_SERVER_ERROR (if something went wrong during the
- * processing of the response of the CGI script, e.g broken headers
- * or a crashed CGI process).
- */
- if (ret == HTTP_NOT_MODIFIED) {
- r->status = ret;
- return OK;
- }
-
- return ret;
- }
-
- location = apr_table_get(r->headers_out, "Location");
-
- if (location && r->status == 200) {
- /* For a redirect whether internal or not, discard any
- * remaining stdout from the script, and log any remaining
- * stderr output, as normal. */
- discard_script_output(bb);
- apr_brigade_destroy(bb);
- apr_file_pipe_timeout_set(script_err, r->server->timeout); - apr_file_pipe_timeout_set(script_err, r->server->timeout);
+ apr_file_pipe_timeout_set(script_err, timeout); - log_script_err(r, script_err);
log_script_err(r, script_err); - }
} -
- if (location && location[0] == '/' && r->status == 200) {
@@ -1036,7 +880,7 @@ - /* This redirect needs to be a GET no matter what the original
* connection drops or we stopped sending output for some other - * method was.
* reason */ - */
if (rv == APR_SUCCESS && !r->connection->aborted) { - r->method = "GET";
- r->method_number = M_GET;
-
- /* We already read the message body (if any), so don't allow
- * the redirected request to think it has one. We can ignore
- * Transfer-Encoding, since we used REQUEST_CHUNKED_ERROR.
- */
- apr_table_unset(r->headers_in, "Content-Length");
-
- ap_internal_redirect_handler(location, r);
- return OK;
- }
- else if (location && r->status == 200) {
- /* XXX: Note that if a script wants to produce its own Redirect
- * body, it now has to explicitly *say* "Status: 302"
- */
- return HTTP_MOVED_TEMPORARILY;
- }
-
- rv = ap_pass_brigade(r->output_filters, bb);
- }
- else /* nph */ {
- struct ap_filter_t *cur;
-
- /* get rid of all filters up through protocol... since we
- * haven't parsed off the headers, there is no way they can
- * work
- */
-
- cur = r->proto_output_filters;
- while (cur && cur->frec->ftype < AP_FTYPE_CONNECTION) {
- cur = cur->next;
- }
- r->output_filters = r->proto_output_filters = cur;
-
- rv = ap_pass_brigade(r->output_filters, bb);
- }
-
- /* don't soak up script output if errors occurred writing it
- * out... otherwise, we prolong the life of the script when the
- * connection drops or we stopped sending output for some other
- * reason */
- if (rv == APR_SUCCESS && !r->connection->aborted) {
- apr_file_pipe_timeout_set(script_err, r->server->timeout); - apr_file_pipe_timeout_set(script_err, r->server->timeout);
+ apr_file_pipe_timeout_set(script_err, timeout); - log_script_err(r, script_err);
log_script_err(r, script_err); - }
} -
- apr_file_close(script_err);
-
- return OK; /* NOT r->status, even if it has changed. */
+ return cgi_handle_response(r, nph, bb, timeout, conf, dbuf, script_err);
}
@@ -1277,7 +1121,7 @@ /*============================================================================
@@ -1277,7 +997,7 @@
AP_DECLARE_MODULE(cgi) = AP_DECLARE_MODULE(cgi) =
{ {
STANDARD20_MODULE_STUFF, STANDARD20_MODULE_STUFF,
@ -328,6 +450,24 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
NULL, /* dir merger --- default is to override */ NULL, /* dir merger --- default is to override */
create_cgi_config, /* server config */ create_cgi_config, /* server config */
merge_cgi_config, /* merge server config */ merge_cgi_config, /* merge server config */
--- httpd-2.4.41/modules/generators/config5.m4
+++ httpd-2.4.41/modules/generators/config5.m4
@@ -78,4 +78,15 @@
APR_ADDTO(INCLUDES, [-I\$(top_srcdir)/$modpath_current])
+AC_ARG_ENABLE(cgid-fdpassing,
+ [APACHE_HELP_STRING(--enable-cgid-fdpassing,Enable experimental mod_cgid support for fd passing)],
+ [if test "$enableval" = "yes"; then
+ AC_CHECK_DECL(CMSG_DATA,
+ [AC_DEFINE([HAVE_CGID_FDPASSING], 1, [Enable FD passing support in mod_cgid])],
+ [AC_MSG_ERROR([cannot support mod_cgid fd-passing on this system])], [
+#include <sys/types.h>
+#include <sys/socket.h>])
+ fi
+])
+
APACHE_MODPATH_FINISH
--- httpd-2.4.41/modules/generators/mod_cgid.c --- httpd-2.4.41/modules/generators/mod_cgid.c
+++ httpd-2.4.41/modules/generators/mod_cgid.c +++ httpd-2.4.41/modules/generators/mod_cgid.c
@@ -342,15 +342,19 @@ @@ -342,15 +342,19 @@
@ -658,19 +798,49 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
static int log_script(request_rec *r, cgid_server_conf * conf, int ret, static int log_script(request_rec *r, cgid_server_conf * conf, int ret,
char *dbuf, const char *sbuf, apr_bucket_brigade *bb, char *dbuf, const char *sbuf, apr_bucket_brigade *bb,
apr_file_t *script_err) apr_file_t *script_err)
@@ -1204,6 +1349,11 @@ @@ -1204,6 +1349,13 @@
return ret; return ret;
} }
+#ifdef HAVE_CGID_FDPASSING
+/* Pull in CGI bucket implementation. */ +/* Pull in CGI bucket implementation. */
+#include "cgi_common.h" +#define cgi_server_conf cgid_server_conf
+#ifdef HAVE_CGID_FDPASSING
+#define WANT_CGI_BUCKET
+#endif +#endif
+#include "cgi_common.h"
+ +
static int connect_to_daemon(int *sdptr, request_rec *r, static int connect_to_daemon(int *sdptr, request_rec *r,
cgid_server_conf *conf) cgid_server_conf *conf)
{ {
@@ -1395,6 +1545,7 @@ @@ -1270,27 +1422,6 @@
return OK;
}
-static void discard_script_output(apr_bucket_brigade *bb)
-{
- apr_bucket *e;
- const char *buf;
- apr_size_t len;
- apr_status_t rv;
-
- for (e = APR_BRIGADE_FIRST(bb);
- e != APR_BRIGADE_SENTINEL(bb);
- e = APR_BUCKET_NEXT(e))
- {
- if (APR_BUCKET_IS_EOS(e)) {
- break;
- }
- rv = apr_bucket_read(e, &buf, &len, APR_BLOCK_READ);
- if (rv != APR_SUCCESS) {
- break;
- }
- }
-}
-
/****************************************************************
*
* Actual cgid handling...
@@ -1395,6 +1526,7 @@
static int cgid_handler(request_rec *r) static int cgid_handler(request_rec *r)
{ {
@ -678,7 +848,7 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
int retval, nph, dbpos; int retval, nph, dbpos;
char *argv0, *dbuf; char *argv0, *dbuf;
apr_bucket_brigade *bb; apr_bucket_brigade *bb;
@@ -1404,10 +1555,11 @@ @@ -1404,10 +1536,11 @@
int seen_eos, child_stopped_reading; int seen_eos, child_stopped_reading;
int sd; int sd;
char **env; char **env;
@ -691,7 +861,7 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
if (strcmp(r->handler, CGI_MAGIC_TYPE) && strcmp(r->handler, "cgi-script")) { if (strcmp(r->handler, CGI_MAGIC_TYPE) && strcmp(r->handler, "cgi-script")) {
return DECLINED; return DECLINED;
@@ -1416,7 +1568,7 @@ @@ -1416,7 +1549,7 @@
conf = ap_get_module_config(r->server->module_config, &cgid_module); conf = ap_get_module_config(r->server->module_config, &cgid_module);
dc = ap_get_module_config(r->per_dir_config, &cgid_module); dc = ap_get_module_config(r->per_dir_config, &cgid_module);
@ -700,7 +870,7 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
is_included = !strcmp(r->protocol, "INCLUDED"); is_included = !strcmp(r->protocol, "INCLUDED");
if ((argv0 = strrchr(r->filename, '/')) != NULL) { if ((argv0 = strrchr(r->filename, '/')) != NULL) {
@@ -1469,6 +1621,17 @@ @@ -1469,6 +1602,17 @@
} }
*/ */
@ -718,7 +888,7 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
/* /*
* httpd core function used to add common environment variables like * httpd core function used to add common environment variables like
* DOCUMENT_ROOT. * DOCUMENT_ROOT.
@@ -1481,12 +1644,16 @@ @@ -1481,12 +1625,16 @@
return retval; return retval;
} }
@ -736,7 +906,7 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
info = apr_palloc(r->pool, sizeof(struct cleanup_script_info)); info = apr_palloc(r->pool, sizeof(struct cleanup_script_info));
info->conf = conf; info->conf = conf;
info->r = r; info->r = r;
@@ -1508,12 +1675,7 @@ @@ -1508,12 +1656,7 @@
*/ */
apr_os_pipe_put_ex(&tempsock, &sd, 1, r->pool); apr_os_pipe_put_ex(&tempsock, &sd, 1, r->pool);
@ -750,10 +920,116 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
apr_pool_cleanup_kill(r->pool, (void *)((long)sd), close_unix_socket); apr_pool_cleanup_kill(r->pool, (void *)((long)sd), close_unix_socket);
/* Transfer any put/post args, CERN style... /* Transfer any put/post args, CERN style...
@@ -1605,23 +1767,28 @@ @@ -1605,114 +1748,19 @@
*/ */
shutdown(sd, 1); shutdown(sd, 1);
- /* Handle script return... */
- if (!nph) {
- conn_rec *c = r->connection;
- const char *location;
- char sbuf[MAX_STRING_LEN];
- int ret;
-
- bb = apr_brigade_create(r->pool, c->bucket_alloc);
- b = apr_bucket_pipe_create(tempsock, c->bucket_alloc);
- APR_BRIGADE_INSERT_TAIL(bb, b);
- b = apr_bucket_eos_create(c->bucket_alloc);
- APR_BRIGADE_INSERT_TAIL(bb, b);
-
- if ((ret = ap_scan_script_header_err_brigade_ex(r, bb, sbuf,
- APLOG_MODULE_INDEX)))
- {
- ret = log_script(r, conf, ret, dbuf, sbuf, bb, NULL);
-
- /*
- * ret could be HTTP_NOT_MODIFIED in the case that the CGI script
- * does not set an explicit status and ap_meets_conditions, which
- * is called by ap_scan_script_header_err_brigade, detects that
- * the conditions of the requests are met and the response is
- * not modified.
- * In this case set r->status and return OK in order to prevent
- * running through the error processing stack as this would
- * break with mod_cache, if the conditions had been set by
- * mod_cache itself to validate a stale entity.
- * BTW: We circumvent the error processing stack anyway if the
- * CGI script set an explicit status code (whatever it is) and
- * the only possible values for ret here are:
- *
- * HTTP_NOT_MODIFIED (set by ap_meets_conditions)
- * HTTP_PRECONDITION_FAILED (set by ap_meets_conditions)
- * HTTP_INTERNAL_SERVER_ERROR (if something went wrong during the
- * processing of the response of the CGI script, e.g broken headers
- * or a crashed CGI process).
- */
- if (ret == HTTP_NOT_MODIFIED) {
- r->status = ret;
- return OK;
- }
-
- return ret;
- }
-
- location = apr_table_get(r->headers_out, "Location");
-
- if (location && location[0] == '/' && r->status == 200) {
-
- /* Soak up all the script output */
- discard_script_output(bb);
- apr_brigade_destroy(bb);
- /* This redirect needs to be a GET no matter what the original
- * method was.
- */
- r->method = "GET";
- r->method_number = M_GET;
-
- /* We already read the message body (if any), so don't allow
- * the redirected request to think it has one. We can ignore
- * Transfer-Encoding, since we used REQUEST_CHUNKED_ERROR.
- */
- apr_table_unset(r->headers_in, "Content-Length");
-
- ap_internal_redirect_handler(location, r);
- return OK;
- }
- else if (location && r->status == 200) {
- /* XXX: Note that if a script wants to produce its own Redirect
- * body, it now has to explicitly *say* "Status: 302"
- */
- discard_script_output(bb);
- apr_brigade_destroy(bb);
- return HTTP_MOVED_TEMPORARILY;
- }
-
- rv = ap_pass_brigade(r->output_filters, bb);
- if (rv != APR_SUCCESS) {
- ap_log_rerror(APLOG_MARK, APLOG_TRACE1, rv, r,
- "Failed to flush CGI output to client");
- }
- }
-
- if (nph) {
- conn_rec *c = r->connection;
- struct ap_filter_t *cur;
-
- /* get rid of all filters up through protocol... since we
- * haven't parsed off the headers, there is no way they can
- * work
- */
-
- cur = r->proto_output_filters;
- while (cur && cur->frec->ftype < AP_FTYPE_CONNECTION) {
- cur = cur->next;
- }
- r->output_filters = r->proto_output_filters = cur;
-
- bb = apr_brigade_create(r->pool, c->bucket_alloc);
- b = apr_bucket_pipe_create(tempsock, c->bucket_alloc);
- APR_BRIGADE_INSERT_TAIL(bb, b);
- b = apr_bucket_eos_create(c->bucket_alloc);
- APR_BRIGADE_INSERT_TAIL(bb, b);
- ap_pass_brigade(r->output_filters, bb);
- }
+ bb = apr_brigade_create(r->pool, c->bucket_alloc); + bb = apr_brigade_create(r->pool, c->bucket_alloc);
+#ifdef HAVE_CGID_FDPASSING +#ifdef HAVE_CGID_FDPASSING
+ b = cgi_bucket_create(r, dc->timeout, tempsock, script_err, c->bucket_alloc); + b = cgi_bucket_create(r, dc->timeout, tempsock, script_err, c->bucket_alloc);
@ -765,76 +1041,13 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
+ APR_BRIGADE_INSERT_TAIL(bb, b); + APR_BRIGADE_INSERT_TAIL(bb, b);
+ b = apr_bucket_eos_create(c->bucket_alloc); + b = apr_bucket_eos_create(c->bucket_alloc);
+ APR_BRIGADE_INSERT_TAIL(bb, b); + APR_BRIGADE_INSERT_TAIL(bb, b);
+
/* Handle script return... */
if (!nph) {
- conn_rec *c = r->connection;
const char *location;
char sbuf[MAX_STRING_LEN];
int ret;
- bb = apr_brigade_create(r->pool, c->bucket_alloc); - return OK; /* NOT r->status, even if it has changed. */
- b = apr_bucket_pipe_create(tempsock, c->bucket_alloc); + return cgi_handle_response(r, nph, bb, timeout, conf, dbuf, script_err);
- APR_BRIGADE_INSERT_TAIL(bb, b);
- b = apr_bucket_eos_create(c->bucket_alloc);
- APR_BRIGADE_INSERT_TAIL(bb, b);
-
if ((ret = ap_scan_script_header_err_brigade_ex(r, bb, sbuf,
APLOG_MODULE_INDEX)))
{
- ret = log_script(r, conf, ret, dbuf, sbuf, bb, NULL);
+ ret = log_script(r, conf, ret, dbuf, sbuf, bb, script_err);
/*
* ret could be HTTP_NOT_MODIFIED in the case that the CGI script
@@ -1658,6 +1825,11 @@
/* Soak up all the script output */
discard_script_output(bb);
apr_brigade_destroy(bb);
+ if (script_err) {
+ apr_file_pipe_timeout_set(script_err, timeout);
+ log_script_err(r, script_err);
+ }
+
/* This redirect needs to be a GET no matter what the original
* method was.
*/
@@ -1690,7 +1862,6 @@
}
if (nph) {
- conn_rec *c = r->connection;
struct ap_filter_t *cur;
/* get rid of all filters up through protocol... since we
@@ -1704,14 +1875,20 @@
}
r->output_filters = r->proto_output_filters = cur;
- bb = apr_brigade_create(r->pool, c->bucket_alloc);
- b = apr_bucket_pipe_create(tempsock, c->bucket_alloc);
- APR_BRIGADE_INSERT_TAIL(bb, b);
- b = apr_bucket_eos_create(c->bucket_alloc);
- APR_BRIGADE_INSERT_TAIL(bb, b);
- ap_pass_brigade(r->output_filters, bb);
+ rv = ap_pass_brigade(r->output_filters, bb);
}
+ /* don't soak up script output if errors occurred writing it
+ * out... otherwise, we prolong the life of the script when the
+ * connection drops or we stopped sending output for some other
+ * reason */
+ if (script_err && rv == APR_SUCCESS && !r->connection->aborted) {
+ apr_file_pipe_timeout_set(script_err, timeout);
+ log_script_err(r, script_err);
+ }
+
+ if (script_err) apr_file_close(script_err);
+
return OK; /* NOT r->status, even if it has changed. */
} }
@@ -1829,7 +2006,7 @@
@@ -1829,7 +1877,7 @@
return retval; return retval;
} }
@ -843,27 +1056,9 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
info = apr_palloc(r->pool, sizeof(struct cleanup_script_info)); info = apr_palloc(r->pool, sizeof(struct cleanup_script_info));
info->conf = conf; info->conf = conf;
--- httpd-2.4.41/modules/generators/config5.m4
+++ httpd-2.4.41/modules/generators/config5.m4
@@ -78,4 +78,15 @@
APR_ADDTO(INCLUDES, [-I\$(top_srcdir)/$modpath_current])
+AC_ARG_ENABLE(cgid-fdpassing,
+ [APACHE_HELP_STRING(--enable-cgid-fdpassing,Enable experimental mod_cgid support for fd passing)],
+ [if test "$enableval" = "yes"; then
+ AC_CHECK_DECL(CMSG_DATA,
+ [AC_DEFINE([HAVE_CGID_FDPASSING], 1, [Enable FD passing support in mod_cgid])],
+ [AC_MSG_ERROR([cannot support mod_cgid fd-passing on this system])], [
+#include <sys/types.h>
+#include <sys/socket.h>])
+ fi
+])
+
APACHE_MODPATH_FINISH
--- httpd-2.4.41/modules/generators/cgi_common.h --- httpd-2.4.41/modules/generators/cgi_common.h
+++ httpd-2.4.41/modules/generators/cgi_common.h +++ httpd-2.4.41/modules/generators/cgi_common.h
@@ -0,0 +1,220 @@ @@ -0,0 +1,359 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more +/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with + * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. + * this work for additional information regarding copyright ownership.
@ -893,6 +1088,24 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
+#include "httpd.h" +#include "httpd.h"
+#include "util_filter.h" +#include "util_filter.h"
+ +
+static void discard_script_output(apr_bucket_brigade *bb)
+{
+ apr_bucket *e;
+ const char *buf;
+ apr_size_t len;
+
+ for (e = APR_BRIGADE_FIRST(bb);
+ e != APR_BRIGADE_SENTINEL(bb) && !APR_BUCKET_IS_EOS(e);
+ e = APR_BRIGADE_FIRST(bb))
+ {
+ if (apr_bucket_read(e, &buf, &len, APR_BLOCK_READ)) {
+ break;
+ }
+ apr_bucket_delete(e);
+ }
+}
+
+#ifdef WANT_CGI_BUCKET
+/* A CGI bucket type is needed to catch any output to stderr from the +/* A CGI bucket type is needed to catch any output to stderr from the
+ * script; see PR 22030. */ + * script; see PR 22030. */
+static const apr_bucket_type_t bucket_type_cgi; +static const apr_bucket_type_t bucket_type_cgi;
@ -1084,3 +1297,124 @@ http://svn.apache.org/viewvc?view=revision&revision=1867882
+ apr_bucket_copy_notimpl + apr_bucket_copy_notimpl
+}; +};
+ +
+#endif /* WANT_CGI_BUCKET */
+
+/* Handle the CGI response output, having set up the brigade with the
+ * CGI or PIPE bucket as appropriate. */
+static int cgi_handle_response(request_rec *r, int nph, apr_bucket_brigade *bb,
+ apr_interval_time_t timeout, cgi_server_conf *conf,
+ char *logdata, apr_file_t *script_err)
+{
+ apr_status_t rv;
+
+ /* Handle script return... */
+ if (!nph) {
+ const char *location;
+ char sbuf[MAX_STRING_LEN];
+ int ret;
+
+ if ((ret = ap_scan_script_header_err_brigade_ex(r, bb, sbuf,
+ APLOG_MODULE_INDEX)))
+ {
+ ret = log_script(r, conf, ret, logdata, sbuf, bb, script_err);
+
+ /*
+ * ret could be HTTP_NOT_MODIFIED in the case that the CGI script
+ * does not set an explicit status and ap_meets_conditions, which
+ * is called by ap_scan_script_header_err_brigade, detects that
+ * the conditions of the requests are met and the response is
+ * not modified.
+ * In this case set r->status and return OK in order to prevent
+ * running through the error processing stack as this would
+ * break with mod_cache, if the conditions had been set by
+ * mod_cache itself to validate a stale entity.
+ * BTW: We circumvent the error processing stack anyway if the
+ * CGI script set an explicit status code (whatever it is) and
+ * the only possible values for ret here are:
+ *
+ * HTTP_NOT_MODIFIED (set by ap_meets_conditions)
+ * HTTP_PRECONDITION_FAILED (set by ap_meets_conditions)
+ * HTTP_INTERNAL_SERVER_ERROR (if something went wrong during the
+ * processing of the response of the CGI script, e.g broken headers
+ * or a crashed CGI process).
+ */
+ if (ret == HTTP_NOT_MODIFIED) {
+ r->status = ret;
+ return OK;
+ }
+
+ return ret;
+ }
+
+ location = apr_table_get(r->headers_out, "Location");
+
+ if (location && r->status == 200) {
+ /* For a redirect whether internal or not, discard any
+ * remaining stdout from the script, and log any remaining
+ * stderr output, as normal. */
+ discard_script_output(bb);
+ apr_brigade_destroy(bb);
+
+ if (script_err) {
+ apr_file_pipe_timeout_set(script_err, timeout);
+ log_script_err(r, script_err);
+ }
+ }
+
+ if (location && location[0] == '/' && r->status == 200) {
+ /* This redirect needs to be a GET no matter what the original
+ * method was.
+ */
+ r->method = "GET";
+ r->method_number = M_GET;
+
+ /* We already read the message body (if any), so don't allow
+ * the redirected request to think it has one. We can ignore
+ * Transfer-Encoding, since we used REQUEST_CHUNKED_ERROR.
+ */
+ apr_table_unset(r->headers_in, "Content-Length");
+
+ ap_internal_redirect_handler(location, r);
+ return OK;
+ }
+ else if (location && r->status == 200) {
+ /* XXX: Note that if a script wants to produce its own Redirect
+ * body, it now has to explicitly *say* "Status: 302"
+ */
+ discard_script_output(bb);
+ apr_brigade_destroy(bb);
+ return HTTP_MOVED_TEMPORARILY;
+ }
+
+ rv = ap_pass_brigade(r->output_filters, bb);
+ }
+ else /* nph */ {
+ struct ap_filter_t *cur;
+
+ /* get rid of all filters up through protocol... since we
+ * haven't parsed off the headers, there is no way they can
+ * work
+ */
+
+ cur = r->proto_output_filters;
+ while (cur && cur->frec->ftype < AP_FTYPE_CONNECTION) {
+ cur = cur->next;
+ }
+ r->output_filters = r->proto_output_filters = cur;
+
+ rv = ap_pass_brigade(r->output_filters, bb);
+ }
+
+ /* don't soak up script output if errors occurred writing it
+ * out... otherwise, we prolong the life of the script when the
+ * connection drops or we stopped sending output for some other
+ * reason */
+ if (script_err && rv == APR_SUCCESS && !r->connection->aborted) {
+ apr_file_pipe_timeout_set(script_err, timeout);
+ log_script_err(r, script_err);
+ }
+
+ if (script_err) apr_file_close(script_err);
+
+ return OK; /* NOT r->status, even if it has changed. */
+}

5
httpd.spec
View File

@ -13,7 +13,7 @@
Summary: Apache HTTP Server Summary: Apache HTTP Server
Name: httpd Name: httpd
Version: 2.4.41 Version: 2.4.41
Release: 5%{?dist} Release: 6%{?dist}
URL: https://httpd.apache.org/ URL: https://httpd.apache.org/
Source0: https://www.apache.org/dist/httpd/httpd-%{version}.tar.bz2 Source0: https://www.apache.org/dist/httpd/httpd-%{version}.tar.bz2
Source2: httpd.logrotate Source2: httpd.logrotate
@ -740,6 +740,9 @@ exit $rv
%{_rpmconfigdir}/macros.d/macros.httpd %{_rpmconfigdir}/macros.d/macros.httpd
%changelog %changelog
* Fri Oct 4 2019 Joe Orton <jorton@redhat.com> - 2.4.41-6
- mod_cgid/mod_cgi: further upstream consolidation patches
* Thu Oct 3 2019 Joe Orton <jorton@redhat.com> - 2.4.41-5 * Thu Oct 3 2019 Joe Orton <jorton@redhat.com> - 2.4.41-5
- mod_proxy_balancer: fix balancer-manager XSRF check (PR 63688) - mod_proxy_balancer: fix balancer-manager XSRF check (PR 63688)