mirror of
https://github.com/apache/httpd.git
synced 2025-08-08 15:02:10 +03:00
mod_cgid: Continuation of r1862968, experimental fd passing support.
Split out CGI bucket implementation from mod_cgi and use in both mod_cgi and mod_cgid, bringing stderr handling in mod_cgid up to par with mod_cgi. (There is a lot of code which has been copied between mod_cgi{,d} so there's scope for further reduction of source duplication between the modules using this header) * modules/generators/cgi_common.h: Copied from mod_cgi.c, removed everything but the CGI bucket implementation with only one change: (struct cgi_bucket_data, cgi_bucket_create, cgi_bucket_read): Take a timeout on bucket creation, store and use on reads. * modules/generators/mod_cgi.c [APR_FILES_AS_SOCKETS]: Include cgi_common.h. (cgi_handler): Pass configured timeout to CGI bucket. * modules/generators/mod_cgid.c: Include cgi_common.h. (log_script_err): Copy from mod_cgi.c. (log_script): Use log_script_err. (send_req): Take fd for stderr. (cgid_child_errfn): Handle fd-passing case by writing error to stderr for client to pass through ap_log_rerror. (cgid_handler): Create pipe for stderr, pass write-end to server via send_req, use read-end to create CGI bucket. Handle stderr output in failure paths. PR: 54221 git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1863191 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
@@ -1 +1 @@
|
||||
10176
|
||||
10177
|
||||
|
216
modules/generators/cgi_common.h
Normal file
216
modules/generators/cgi_common.h
Normal file
@@ -0,0 +1,216 @@
|
||||
/* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership.
|
||||
* The ASF licenses this file to You under the Apache License, Version 2.0
|
||||
* (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#include "apr.h"
|
||||
#include "apr_strings.h"
|
||||
#include "apr_buckets.h"
|
||||
#include "apr_lib.h"
|
||||
#include "apr_poll.h"
|
||||
|
||||
#define APR_WANT_STRFUNC
|
||||
#define APR_WANT_MEMFUNC
|
||||
#include "apr_want.h"
|
||||
|
||||
#include "httpd.h"
|
||||
#include "util_filter.h"
|
||||
|
||||
/* A CGI bucket type is needed to catch any output to stderr from the
|
||||
* script; see PR 22030. */
|
||||
static const apr_bucket_type_t bucket_type_cgi;
|
||||
|
||||
struct cgi_bucket_data {
|
||||
apr_pollset_t *pollset;
|
||||
request_rec *r;
|
||||
apr_interval_time_t timeout;
|
||||
};
|
||||
|
||||
/* Create a CGI bucket using pipes from script stdout 'out'
|
||||
* and stderr 'err', for request 'r'. */
|
||||
static apr_bucket *cgi_bucket_create(request_rec *r,
|
||||
apr_interval_time_t timeout,
|
||||
apr_file_t *out, apr_file_t *err,
|
||||
apr_bucket_alloc_t *list)
|
||||
{
|
||||
apr_bucket *b = apr_bucket_alloc(sizeof(*b), list);
|
||||
apr_status_t rv;
|
||||
apr_pollfd_t fd;
|
||||
struct cgi_bucket_data *data = apr_palloc(r->pool, sizeof *data);
|
||||
|
||||
APR_BUCKET_INIT(b);
|
||||
b->free = apr_bucket_free;
|
||||
b->list = list;
|
||||
b->type = &bucket_type_cgi;
|
||||
b->length = (apr_size_t)(-1);
|
||||
b->start = -1;
|
||||
|
||||
/* Create the pollset */
|
||||
rv = apr_pollset_create(&data->pollset, 2, r->pool, 0);
|
||||
if (rv != APR_SUCCESS) {
|
||||
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01217)
|
||||
"apr_pollset_create(); check system or user limits");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
fd.desc_type = APR_POLL_FILE;
|
||||
fd.reqevents = APR_POLLIN;
|
||||
fd.p = r->pool;
|
||||
fd.desc.f = out; /* script's stdout */
|
||||
fd.client_data = (void *)1;
|
||||
rv = apr_pollset_add(data->pollset, &fd);
|
||||
if (rv != APR_SUCCESS) {
|
||||
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01218)
|
||||
"apr_pollset_add(); check system or user limits");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
fd.desc.f = err; /* script's stderr */
|
||||
fd.client_data = (void *)2;
|
||||
rv = apr_pollset_add(data->pollset, &fd);
|
||||
if (rv != APR_SUCCESS) {
|
||||
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01219)
|
||||
"apr_pollset_add(); check system or user limits");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
data->r = r;
|
||||
data->timeout = timeout;
|
||||
b->data = data;
|
||||
return b;
|
||||
}
|
||||
|
||||
/* Create a duplicate CGI bucket using given bucket data */
|
||||
static apr_bucket *cgi_bucket_dup(struct cgi_bucket_data *data,
|
||||
apr_bucket_alloc_t *list)
|
||||
{
|
||||
apr_bucket *b = apr_bucket_alloc(sizeof(*b), list);
|
||||
APR_BUCKET_INIT(b);
|
||||
b->free = apr_bucket_free;
|
||||
b->list = list;
|
||||
b->type = &bucket_type_cgi;
|
||||
b->length = (apr_size_t)(-1);
|
||||
b->start = -1;
|
||||
b->data = data;
|
||||
return b;
|
||||
}
|
||||
|
||||
/* Handle stdout from CGI child. Duplicate of logic from the _read
|
||||
* method of the real APR pipe bucket implementation. */
|
||||
static apr_status_t cgi_read_stdout(apr_bucket *a, apr_file_t *out,
|
||||
const char **str, apr_size_t *len)
|
||||
{
|
||||
char *buf;
|
||||
apr_status_t rv;
|
||||
|
||||
*str = NULL;
|
||||
*len = APR_BUCKET_BUFF_SIZE;
|
||||
buf = apr_bucket_alloc(*len, a->list); /* XXX: check for failure? */
|
||||
|
||||
rv = apr_file_read(out, buf, len);
|
||||
|
||||
if (rv != APR_SUCCESS && rv != APR_EOF) {
|
||||
apr_bucket_free(buf);
|
||||
return rv;
|
||||
}
|
||||
|
||||
if (*len > 0) {
|
||||
struct cgi_bucket_data *data = a->data;
|
||||
apr_bucket_heap *h;
|
||||
|
||||
/* Change the current bucket to refer to what we read */
|
||||
a = apr_bucket_heap_make(a, buf, *len, apr_bucket_free);
|
||||
h = a->data;
|
||||
h->alloc_len = APR_BUCKET_BUFF_SIZE; /* note the real buffer size */
|
||||
*str = buf;
|
||||
APR_BUCKET_INSERT_AFTER(a, cgi_bucket_dup(data, a->list));
|
||||
}
|
||||
else {
|
||||
apr_bucket_free(buf);
|
||||
a = apr_bucket_immortal_make(a, "", 0);
|
||||
*str = a->data;
|
||||
}
|
||||
return rv;
|
||||
}
|
||||
|
||||
/* Read method of CGI bucket: polls on stderr and stdout of the child,
|
||||
* sending any stderr output immediately away to the error log. */
|
||||
static apr_status_t cgi_bucket_read(apr_bucket *b, const char **str,
|
||||
apr_size_t *len, apr_read_type_e block)
|
||||
{
|
||||
struct cgi_bucket_data *data = b->data;
|
||||
apr_interval_time_t timeout = 0;
|
||||
apr_status_t rv;
|
||||
int gotdata = 0;
|
||||
|
||||
if (block != APR_NONBLOCK_READ) {
|
||||
timeout = data->timeout > 0 ? data->timeout : data->r->server->timeout;
|
||||
}
|
||||
|
||||
do {
|
||||
const apr_pollfd_t *results;
|
||||
apr_int32_t num;
|
||||
|
||||
rv = apr_pollset_poll(data->pollset, timeout, &num, &results);
|
||||
if (APR_STATUS_IS_TIMEUP(rv)) {
|
||||
if (timeout) {
|
||||
ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0, data->r, APLOGNO(01220)
|
||||
"Timeout waiting for output from CGI script %s",
|
||||
data->r->filename);
|
||||
return rv;
|
||||
}
|
||||
else {
|
||||
return APR_EAGAIN;
|
||||
}
|
||||
}
|
||||
else if (APR_STATUS_IS_EINTR(rv)) {
|
||||
continue;
|
||||
}
|
||||
else if (rv != APR_SUCCESS) {
|
||||
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, data->r, APLOGNO(01221)
|
||||
"poll failed waiting for CGI child");
|
||||
return rv;
|
||||
}
|
||||
|
||||
for (; num; num--, results++) {
|
||||
if (results[0].client_data == (void *)1) {
|
||||
/* stdout */
|
||||
rv = cgi_read_stdout(b, results[0].desc.f, str, len);
|
||||
if (APR_STATUS_IS_EOF(rv)) {
|
||||
rv = APR_SUCCESS;
|
||||
}
|
||||
gotdata = 1;
|
||||
} else {
|
||||
/* stderr */
|
||||
apr_status_t rv2 = log_script_err(data->r, results[0].desc.f);
|
||||
if (APR_STATUS_IS_EOF(rv2)) {
|
||||
apr_pollset_remove(data->pollset, &results[0]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
} while (!gotdata);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
static const apr_bucket_type_t bucket_type_cgi = {
|
||||
"CGI", 5, APR_BUCKET_DATA,
|
||||
apr_bucket_destroy_noop,
|
||||
cgi_bucket_read,
|
||||
apr_bucket_setaside_notimpl,
|
||||
apr_bucket_split_notimpl,
|
||||
apr_bucket_copy_notimpl
|
||||
};
|
||||
|
@@ -590,192 +590,7 @@ static void discard_script_output(apr_bucket_brigade *bb)
|
||||
}
|
||||
|
||||
#if APR_FILES_AS_SOCKETS
|
||||
|
||||
/* A CGI bucket type is needed to catch any output to stderr from the
|
||||
* script; see PR 22030. */
|
||||
static const apr_bucket_type_t bucket_type_cgi;
|
||||
|
||||
struct cgi_bucket_data {
|
||||
apr_pollset_t *pollset;
|
||||
request_rec *r;
|
||||
};
|
||||
|
||||
/* Create a CGI bucket using pipes from script stdout 'out'
|
||||
* and stderr 'err', for request 'r'. */
|
||||
static apr_bucket *cgi_bucket_create(request_rec *r,
|
||||
apr_file_t *out, apr_file_t *err,
|
||||
apr_bucket_alloc_t *list)
|
||||
{
|
||||
apr_bucket *b = apr_bucket_alloc(sizeof(*b), list);
|
||||
apr_status_t rv;
|
||||
apr_pollfd_t fd;
|
||||
struct cgi_bucket_data *data = apr_palloc(r->pool, sizeof *data);
|
||||
|
||||
APR_BUCKET_INIT(b);
|
||||
b->free = apr_bucket_free;
|
||||
b->list = list;
|
||||
b->type = &bucket_type_cgi;
|
||||
b->length = (apr_size_t)(-1);
|
||||
b->start = -1;
|
||||
|
||||
/* Create the pollset */
|
||||
rv = apr_pollset_create(&data->pollset, 2, r->pool, 0);
|
||||
if (rv != APR_SUCCESS) {
|
||||
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01217)
|
||||
"apr_pollset_create(); check system or user limits");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
fd.desc_type = APR_POLL_FILE;
|
||||
fd.reqevents = APR_POLLIN;
|
||||
fd.p = r->pool;
|
||||
fd.desc.f = out; /* script's stdout */
|
||||
fd.client_data = (void *)1;
|
||||
rv = apr_pollset_add(data->pollset, &fd);
|
||||
if (rv != APR_SUCCESS) {
|
||||
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01218)
|
||||
"apr_pollset_add(); check system or user limits");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
fd.desc.f = err; /* script's stderr */
|
||||
fd.client_data = (void *)2;
|
||||
rv = apr_pollset_add(data->pollset, &fd);
|
||||
if (rv != APR_SUCCESS) {
|
||||
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01219)
|
||||
"apr_pollset_add(); check system or user limits");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
data->r = r;
|
||||
b->data = data;
|
||||
return b;
|
||||
}
|
||||
|
||||
/* Create a duplicate CGI bucket using given bucket data */
|
||||
static apr_bucket *cgi_bucket_dup(struct cgi_bucket_data *data,
|
||||
apr_bucket_alloc_t *list)
|
||||
{
|
||||
apr_bucket *b = apr_bucket_alloc(sizeof(*b), list);
|
||||
APR_BUCKET_INIT(b);
|
||||
b->free = apr_bucket_free;
|
||||
b->list = list;
|
||||
b->type = &bucket_type_cgi;
|
||||
b->length = (apr_size_t)(-1);
|
||||
b->start = -1;
|
||||
b->data = data;
|
||||
return b;
|
||||
}
|
||||
|
||||
/* Handle stdout from CGI child. Duplicate of logic from the _read
|
||||
* method of the real APR pipe bucket implementation. */
|
||||
static apr_status_t cgi_read_stdout(apr_bucket *a, apr_file_t *out,
|
||||
const char **str, apr_size_t *len)
|
||||
{
|
||||
char *buf;
|
||||
apr_status_t rv;
|
||||
|
||||
*str = NULL;
|
||||
*len = APR_BUCKET_BUFF_SIZE;
|
||||
buf = apr_bucket_alloc(*len, a->list); /* XXX: check for failure? */
|
||||
|
||||
rv = apr_file_read(out, buf, len);
|
||||
|
||||
if (rv != APR_SUCCESS && rv != APR_EOF) {
|
||||
apr_bucket_free(buf);
|
||||
return rv;
|
||||
}
|
||||
|
||||
if (*len > 0) {
|
||||
struct cgi_bucket_data *data = a->data;
|
||||
apr_bucket_heap *h;
|
||||
|
||||
/* Change the current bucket to refer to what we read */
|
||||
a = apr_bucket_heap_make(a, buf, *len, apr_bucket_free);
|
||||
h = a->data;
|
||||
h->alloc_len = APR_BUCKET_BUFF_SIZE; /* note the real buffer size */
|
||||
*str = buf;
|
||||
APR_BUCKET_INSERT_AFTER(a, cgi_bucket_dup(data, a->list));
|
||||
}
|
||||
else {
|
||||
apr_bucket_free(buf);
|
||||
a = apr_bucket_immortal_make(a, "", 0);
|
||||
*str = a->data;
|
||||
}
|
||||
return rv;
|
||||
}
|
||||
|
||||
/* Read method of CGI bucket: polls on stderr and stdout of the child,
|
||||
* sending any stderr output immediately away to the error log. */
|
||||
static apr_status_t cgi_bucket_read(apr_bucket *b, const char **str,
|
||||
apr_size_t *len, apr_read_type_e block)
|
||||
{
|
||||
struct cgi_bucket_data *data = b->data;
|
||||
apr_interval_time_t timeout = 0;
|
||||
apr_status_t rv;
|
||||
int gotdata = 0;
|
||||
cgi_dirconf *dc = ap_get_module_config(data->r->per_dir_config, &cgi_module);
|
||||
|
||||
if (block != APR_NONBLOCK_READ) {
|
||||
timeout = dc->timeout > 0 ? dc->timeout : data->r->server->timeout;
|
||||
}
|
||||
|
||||
do {
|
||||
const apr_pollfd_t *results;
|
||||
apr_int32_t num;
|
||||
|
||||
rv = apr_pollset_poll(data->pollset, timeout, &num, &results);
|
||||
if (APR_STATUS_IS_TIMEUP(rv)) {
|
||||
if (timeout) {
|
||||
ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0, data->r, APLOGNO(01220)
|
||||
"Timeout waiting for output from CGI script %s",
|
||||
data->r->filename);
|
||||
return rv;
|
||||
}
|
||||
else {
|
||||
return APR_EAGAIN;
|
||||
}
|
||||
}
|
||||
else if (APR_STATUS_IS_EINTR(rv)) {
|
||||
continue;
|
||||
}
|
||||
else if (rv != APR_SUCCESS) {
|
||||
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, data->r, APLOGNO(01221)
|
||||
"poll failed waiting for CGI child");
|
||||
return rv;
|
||||
}
|
||||
|
||||
for (; num; num--, results++) {
|
||||
if (results[0].client_data == (void *)1) {
|
||||
/* stdout */
|
||||
rv = cgi_read_stdout(b, results[0].desc.f, str, len);
|
||||
if (APR_STATUS_IS_EOF(rv)) {
|
||||
rv = APR_SUCCESS;
|
||||
}
|
||||
gotdata = 1;
|
||||
} else {
|
||||
/* stderr */
|
||||
apr_status_t rv2 = log_script_err(data->r, results[0].desc.f);
|
||||
if (APR_STATUS_IS_EOF(rv2)) {
|
||||
apr_pollset_remove(data->pollset, &results[0]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
} while (!gotdata);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
static const apr_bucket_type_t bucket_type_cgi = {
|
||||
"CGI", 5, APR_BUCKET_DATA,
|
||||
apr_bucket_destroy_noop,
|
||||
cgi_bucket_read,
|
||||
apr_bucket_setaside_notimpl,
|
||||
apr_bucket_split_notimpl,
|
||||
apr_bucket_copy_notimpl
|
||||
};
|
||||
|
||||
#include "cgi_common.h"
|
||||
#endif
|
||||
|
||||
static int cgi_handler(request_rec *r)
|
||||
@@ -960,7 +775,7 @@ static int cgi_handler(request_rec *r)
|
||||
apr_file_pipe_timeout_set(script_in, 0);
|
||||
apr_file_pipe_timeout_set(script_err, 0);
|
||||
|
||||
b = cgi_bucket_create(r, script_in, script_err, c->bucket_alloc);
|
||||
b = cgi_bucket_create(r, dc->timeout, script_in, script_err, c->bucket_alloc);
|
||||
if (b == NULL)
|
||||
return HTTP_INTERNAL_SERVER_ERROR;
|
||||
#else
|
||||
|
@@ -556,8 +556,8 @@ static apr_status_t get_req(int fd, request_rec *r, char **argv0, char ***env,
|
||||
return APR_SUCCESS;
|
||||
}
|
||||
|
||||
static apr_status_t send_req(int fd, request_rec *r, char *argv0, char **env,
|
||||
int req_type)
|
||||
static apr_status_t send_req(int fd, apr_file_t *errpipe, request_rec *r,
|
||||
char *argv0, char **env, int req_type)
|
||||
{
|
||||
int i;
|
||||
cgid_req_t req = {0};
|
||||
@@ -585,8 +585,8 @@ static apr_status_t send_req(int fd, request_rec *r, char *argv0, char **env,
|
||||
req.args_len = r->args ? strlen(r->args) : 0;
|
||||
req.loglevel = r->server->log.level;
|
||||
|
||||
if (r->server->error_log)
|
||||
apr_os_file_get(&errfd, r->server->error_log);
|
||||
if (errpipe)
|
||||
apr_os_file_get(&errfd, errpipe);
|
||||
else
|
||||
errfd = 0;
|
||||
|
||||
@@ -665,20 +665,34 @@ static void daemon_signal_handler(int sig)
|
||||
}
|
||||
}
|
||||
|
||||
/* Callback executed in the forked child process if exec of the CGI
|
||||
* script fails. For the fd-passing case, output to stderr goes to
|
||||
* the client (request handling thread) and is logged via
|
||||
* ap_log_rerror there. For the non-fd-passing case, the "fake"
|
||||
* request_rec passed via userdata is used to log. */
|
||||
static void cgid_child_errfn(apr_pool_t *pool, apr_status_t err,
|
||||
const char *description)
|
||||
{
|
||||
request_rec *r;
|
||||
void *vr;
|
||||
|
||||
apr_pool_userdata_get(&vr, ERRFN_USERDATA_KEY, pool);
|
||||
r = vr;
|
||||
if (vr) {
|
||||
request_rec *r = vr;
|
||||
|
||||
/* sure we got r, but don't call ap_log_rerror() because we don't
|
||||
* have r->headers_in and possibly other storage referenced by
|
||||
* ap_log_rerror()
|
||||
*/
|
||||
ap_log_error(APLOG_MARK, APLOG_ERR, err, r->server, APLOGNO(01241) "%s", description);
|
||||
}
|
||||
else {
|
||||
const char *logstr;
|
||||
|
||||
logstr = apr_psprintf(pool, APLOGNO(01241) "error spawning CGI child: %s (%pm)\n",
|
||||
description, &err);
|
||||
fputs(logstr, stderr);
|
||||
fflush(stderr);
|
||||
}
|
||||
}
|
||||
|
||||
static int cgid_server(void *data)
|
||||
@@ -893,7 +907,10 @@ static int cgid_server(void *data)
|
||||
close(sd2);
|
||||
}
|
||||
else {
|
||||
if (errfileno == STDERR_FILENO) {
|
||||
/* Used by cgid_child_errfn without fd-passing. */
|
||||
apr_pool_userdata_set(r, ERRFN_USERDATA_KEY, apr_pool_cleanup_null, ptrans);
|
||||
}
|
||||
|
||||
argv = (const char * const *)create_argv(r->pool, NULL, NULL, NULL, argv0, r->args);
|
||||
|
||||
@@ -1192,6 +1209,33 @@ static int log_scripterror(request_rec *r, cgid_server_conf * conf, int ret,
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Soak up stderr from a script and redirect it to the error log.
|
||||
* TODO: log_scripterror() and this could move to cgi_common.h. */
|
||||
static apr_status_t log_script_err(request_rec *r, apr_file_t *script_err)
|
||||
{
|
||||
char argsbuffer[HUGE_STRING_LEN];
|
||||
char *newline;
|
||||
apr_status_t rv;
|
||||
cgid_server_conf *conf = ap_get_module_config(r->server->module_config, &cgid_module);
|
||||
|
||||
while ((rv = apr_file_gets(argsbuffer, HUGE_STRING_LEN,
|
||||
script_err)) == APR_SUCCESS) {
|
||||
|
||||
newline = strchr(argsbuffer, '\n');
|
||||
if (newline) {
|
||||
char *prev = newline - 1;
|
||||
if (prev >= argsbuffer && *prev == '\r') {
|
||||
newline = prev;
|
||||
}
|
||||
|
||||
*newline = '\0';
|
||||
}
|
||||
log_scripterror(r, conf, r->status, 0, argsbuffer);
|
||||
}
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
static int log_script(request_rec *r, cgid_server_conf * conf, int ret,
|
||||
char *dbuf, const char *sbuf, apr_bucket_brigade *bb,
|
||||
apr_file_t *script_err)
|
||||
@@ -1297,6 +1341,11 @@ static int log_script(request_rec *r, cgid_server_conf * conf, int ret,
|
||||
return ret;
|
||||
}
|
||||
|
||||
#ifdef HAVE_CGID_FDPASSING
|
||||
/* Pull in CGI bucket implementation. */
|
||||
#include "cgi_common.h"
|
||||
#endif
|
||||
|
||||
static int connect_to_daemon(int *sdptr, request_rec *r,
|
||||
cgid_server_conf *conf)
|
||||
{
|
||||
@@ -1488,6 +1537,7 @@ static apr_status_t cleanup_script(void *vptr)
|
||||
|
||||
static int cgid_handler(request_rec *r)
|
||||
{
|
||||
conn_rec *c = r->connection;
|
||||
int retval, nph, dbpos;
|
||||
char *argv0, *dbuf;
|
||||
apr_bucket_brigade *bb;
|
||||
@@ -1497,10 +1547,11 @@ static int cgid_handler(request_rec *r)
|
||||
int seen_eos, child_stopped_reading;
|
||||
int sd;
|
||||
char **env;
|
||||
apr_file_t *tempsock;
|
||||
apr_file_t *tempsock, *script_err, *errpipe_out;
|
||||
struct cleanup_script_info *info;
|
||||
apr_status_t rv;
|
||||
cgid_dirconf *dc;
|
||||
apr_interval_time_t timeout;
|
||||
|
||||
if (strcmp(r->handler, CGI_MAGIC_TYPE) && strcmp(r->handler, "cgi-script")) {
|
||||
return DECLINED;
|
||||
@@ -1509,7 +1560,7 @@ static int cgid_handler(request_rec *r)
|
||||
conf = ap_get_module_config(r->server->module_config, &cgid_module);
|
||||
dc = ap_get_module_config(r->per_dir_config, &cgid_module);
|
||||
|
||||
|
||||
timeout = dc->timeout > 0 ? dc->timeout : r->server->timeout;
|
||||
is_included = !strcmp(r->protocol, "INCLUDED");
|
||||
|
||||
if ((argv0 = strrchr(r->filename, '/')) != NULL) {
|
||||
@@ -1562,6 +1613,17 @@ static int cgid_handler(request_rec *r)
|
||||
}
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CGID_FDPASSING
|
||||
rv = apr_file_pipe_create(&script_err, &errpipe_out, r->pool);
|
||||
if (rv) {
|
||||
return log_scripterror(r, conf, HTTP_SERVICE_UNAVAILABLE, rv, APLOGNO(10176)
|
||||
"could not create pipe for stderr");
|
||||
}
|
||||
#else
|
||||
script_err = NULL;
|
||||
errpipe_out = NULL;
|
||||
#endif
|
||||
|
||||
/*
|
||||
* httpd core function used to add common environment variables like
|
||||
* DOCUMENT_ROOT.
|
||||
@@ -1574,12 +1636,16 @@ static int cgid_handler(request_rec *r)
|
||||
return retval;
|
||||
}
|
||||
|
||||
rv = send_req(sd, r, argv0, env, CGI_REQ);
|
||||
rv = send_req(sd, errpipe_out, r, argv0, env, CGI_REQ);
|
||||
if (rv != APR_SUCCESS) {
|
||||
ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01268)
|
||||
"write to cgi daemon process");
|
||||
}
|
||||
|
||||
/* The write-end of the pipe is only used by the server, so close
|
||||
* it here. */
|
||||
if (errpipe_out) apr_file_close(errpipe_out);
|
||||
|
||||
info = apr_palloc(r->pool, sizeof(struct cleanup_script_info));
|
||||
info->conf = conf;
|
||||
info->r = r;
|
||||
@@ -1601,12 +1667,7 @@ static int cgid_handler(request_rec *r)
|
||||
*/
|
||||
|
||||
apr_os_pipe_put_ex(&tempsock, &sd, 1, r->pool);
|
||||
if (dc->timeout > 0) {
|
||||
apr_file_pipe_timeout_set(tempsock, dc->timeout);
|
||||
}
|
||||
else {
|
||||
apr_file_pipe_timeout_set(tempsock, r->server->timeout);
|
||||
}
|
||||
apr_file_pipe_timeout_set(tempsock, timeout);
|
||||
apr_pool_cleanup_kill(r->pool, (void *)((long)sd), close_unix_socket);
|
||||
|
||||
/* Transfer any put/post args, CERN style...
|
||||
@@ -1698,23 +1759,28 @@ static int cgid_handler(request_rec *r)
|
||||
*/
|
||||
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);
|
||||
#ifdef HAVE_CGID_FDPASSING
|
||||
b = cgi_bucket_create(r, dc->timeout, tempsock, script_err, c->bucket_alloc);
|
||||
if (b == NULL)
|
||||
return HTTP_INTERNAL_SERVER_ERROR; /* should call log_scripterror() w/ _UNAVAILABLE? */
|
||||
#else
|
||||
b = apr_bucket_pipe_create(tempsock, c->bucket_alloc);
|
||||
#endif
|
||||
APR_BRIGADE_INSERT_TAIL(bb, b);
|
||||
b = apr_bucket_eos_create(c->bucket_alloc);
|
||||
APR_BRIGADE_INSERT_TAIL(bb, b);
|
||||
|
||||
/* 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, 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
|
||||
@@ -1751,6 +1817,11 @@ static int cgid_handler(request_rec *r)
|
||||
/* 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.
|
||||
*/
|
||||
@@ -1783,7 +1854,6 @@ static int cgid_handler(request_rec *r)
|
||||
}
|
||||
|
||||
if (nph) {
|
||||
conn_rec *c = r->connection;
|
||||
struct ap_filter_t *cur;
|
||||
|
||||
/* get rid of all filters up through protocol... since we
|
||||
@@ -1797,14 +1867,20 @@ static int cgid_handler(request_rec *r)
|
||||
}
|
||||
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. */
|
||||
}
|
||||
|
||||
@@ -1922,7 +1998,7 @@ static int include_cmd(include_ctx_t *ctx, ap_filter_t *f,
|
||||
return retval;
|
||||
}
|
||||
|
||||
send_req(sd, r, command, env, SSI_REQ);
|
||||
send_req(sd, NULL, r, command, env, SSI_REQ);
|
||||
|
||||
info = apr_palloc(r->pool, sizeof(struct cleanup_script_info));
|
||||
info->conf = conf;
|
||||
|
Reference in New Issue
Block a user