diff options
Diffstat (limited to 'backport-httpd-2.4.48-r1828172+.patch')
| -rw-r--r-- | backport-httpd-2.4.48-r1828172+.patch | 2371 |
1 files changed, 0 insertions, 2371 deletions
diff --git a/backport-httpd-2.4.48-r1828172+.patch b/backport-httpd-2.4.48-r1828172+.patch deleted file mode 100644 index 37f1855..0000000 --- a/backport-httpd-2.4.48-r1828172+.patch +++ /dev/null @@ -1,2371 +0,0 @@ - -https://github.com/apache/httpd/pull/209 - -diff --git a/modules/generators/cgi_common.h b/modules/generators/cgi_common.h -new file mode 100644 -index 0000000000..69df73ce68 ---- /dev/null -+++ b/modules/generators/cgi_common.h -@@ -0,0 +1,629 @@ -+/* 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" -+ -+static APR_OPTIONAL_FN_TYPE(ap_ssi_get_tag_and_value) *cgi_pfn_gtv; -+static APR_OPTIONAL_FN_TYPE(ap_ssi_parse_string) *cgi_pfn_ps; -+ -+/* These functions provided by mod_cgi.c/mod_cgid.c still. */ -+static int log_script(request_rec *r, cgi_server_conf * conf, int ret, -+ char *dbuf, const char *sbuf, apr_bucket_brigade *bb, -+ apr_file_t *script_err); -+static apr_status_t include_cgi(include_ctx_t *ctx, ap_filter_t *f, -+ apr_bucket_brigade *bb, char *s); -+static apr_status_t include_cmd(include_ctx_t *ctx, ap_filter_t *f, -+ apr_bucket_brigade *bb, const char *command); -+ -+/* Read and discard all output from the brigade. Note that with the -+ * CGI bucket, the brigade will become empty once the script's stdout -+ * is closed (or on error/timeout), but the stderr output may not have -+ * been entirely captured at this point. */ -+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); -+ } -+} -+ -+static int log_scripterror(request_rec *r, cgi_server_conf *conf, int ret, -+ apr_status_t rv, const char *logno, -+ const char *error) -+{ -+ apr_file_t *f = NULL; -+ apr_finfo_t finfo; -+ char time_str[APR_CTIME_LEN]; -+ -+ /* Intentional no APLOGNO */ -+ /* Callee provides APLOGNO in error text */ -+ ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, -+ "%sstderr from %s: %s", logno ? logno : "", r->filename, error); -+ -+ /* XXX Very expensive mainline case! Open, then getfileinfo! */ -+ if (!conf->logname || -+ ((apr_stat(&finfo, conf->logname, -+ APR_FINFO_SIZE, r->pool) == APR_SUCCESS) && -+ (finfo.size > conf->logbytes)) || -+ (apr_file_open(&f, conf->logname, -+ APR_APPEND|APR_WRITE|APR_CREATE, APR_OS_DEFAULT, -+ r->pool) != APR_SUCCESS)) { -+ return ret; -+ } -+ -+ /* "%% [Wed Jun 19 10:53:21 1996] GET /cgi-bin/printenv HTTP/1.0" */ -+ apr_ctime(time_str, apr_time_now()); -+ apr_file_printf(f, "%%%% [%s] %s %s%s%s %s\n", time_str, r->method, r->uri, -+ r->args ? "?" : "", r->args ? r->args : "", r->protocol); -+ /* "%% 500 /usr/local/apache/cgi-bin */ -+ apr_file_printf(f, "%%%% %d %s\n", ret, r->filename); -+ -+ apr_file_printf(f, "%%error\n%s\n", error); -+ -+ apr_file_close(f); -+ return ret; -+} -+ -+/* Soak up stderr from a script and redirect it to the error log. -+ */ -+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; -+ cgi_server_conf *conf = ap_get_module_config(r->server->module_config, &cgi_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, APLOGNO(01215), argsbuffer); -+ } -+ -+ return rv; -+} -+ -+static apr_status_t cgi_handle_exec(include_ctx_t *ctx, ap_filter_t *f, -+ apr_bucket_brigade *bb) -+{ -+ char *tag = NULL; -+ char *tag_val = NULL; -+ request_rec *r = f->r; -+ char *file = r->filename; -+ char parsed_string[MAX_STRING_LEN]; -+ -+ if (!ctx->argc) { -+ ap_log_rerror(APLOG_MARK, -+ (ctx->flags & SSI_FLAG_PRINTING) -+ ? APLOG_ERR : APLOG_WARNING, -+ 0, r, APLOGNO(03195) -+ "missing argument for exec element in %s", r->filename); -+ } -+ -+ if (!(ctx->flags & SSI_FLAG_PRINTING)) { -+ return APR_SUCCESS; -+ } -+ -+ if (!ctx->argc) { -+ SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -+ return APR_SUCCESS; -+ } -+ -+ if (ctx->flags & SSI_FLAG_NO_EXEC) { -+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01228) "exec used but not allowed " -+ "in %s", r->filename); -+ SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -+ return APR_SUCCESS; -+ } -+ -+ while (1) { -+ cgi_pfn_gtv(ctx, &tag, &tag_val, SSI_VALUE_DECODED); -+ if (!tag || !tag_val) { -+ break; -+ } -+ -+ if (!strcmp(tag, "cmd")) { -+ apr_status_t rv; -+ -+ cgi_pfn_ps(ctx, tag_val, parsed_string, sizeof(parsed_string), -+ SSI_EXPAND_LEAVE_NAME); -+ -+ rv = include_cmd(ctx, f, bb, parsed_string); -+ if (rv != APR_SUCCESS) { -+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01229) "execution failure " -+ "for parameter \"%s\" to tag exec in file %s", -+ tag, r->filename); -+ SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -+ break; -+ } -+ } -+ else if (!strcmp(tag, "cgi")) { -+ apr_status_t rv; -+ -+ cgi_pfn_ps(ctx, tag_val, parsed_string, sizeof(parsed_string), -+ SSI_EXPAND_DROP_NAME); -+ -+ rv = include_cgi(ctx, f, bb, parsed_string); -+ if (rv != APR_SUCCESS) { -+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01230) "invalid CGI ref " -+ "\"%s\" in %s", tag_val, file); -+ SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -+ break; -+ } -+ } -+ else { -+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01231) "unknown parameter " -+ "\"%s\" to tag exec in %s", tag, file); -+ SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -+ break; -+ } -+ } -+ -+ return APR_SUCCESS; -+} -+ -+/* Hook to register exec= handling with mod_include. */ -+static void cgi_optfns_retrieve(void) -+{ -+ APR_OPTIONAL_FN_TYPE(ap_register_include_handler) *cgi_pfn_reg_with_ssi; -+ -+ cgi_pfn_reg_with_ssi = APR_RETRIEVE_OPTIONAL_FN(ap_register_include_handler); -+ cgi_pfn_gtv = APR_RETRIEVE_OPTIONAL_FN(ap_ssi_get_tag_and_value); -+ cgi_pfn_ps = APR_RETRIEVE_OPTIONAL_FN(ap_ssi_parse_string); -+ -+ if (cgi_pfn_reg_with_ssi && cgi_pfn_gtv && cgi_pfn_ps) { -+ /* Required by mod_include filter. This is how mod_cgi registers -+ * with mod_include to provide processing of the exec directive. -+ */ -+ cgi_pfn_reg_with_ssi("exec", cgi_handle_exec); -+ } -+} -+ -+#ifdef WANT_CGI_BUCKET -+/* 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); -+ -+ /* Disable APR timeout handling since we'll use poll() entirely. */ -+ apr_file_pipe_timeout_set(out, 0); -+ apr_file_pipe_timeout_set(err, 0); -+ -+ 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 -+}; -+ -+#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))) -+ { -+ /* In the case of a timeout reading script output, clear -+ * the brigade to avoid a second attempt to read the -+ * output. */ -+ if (ret == HTTP_GATEWAY_TIME_OUT) { -+ apr_brigade_cleanup(bb); -+ } -+ -+ 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. */ -+} -+ -+/* Read the request body and write it to fd 'script_out', using 'bb' -+ * as temporary bucket brigade. If 'logbuf' is non-NULL, the first -+ * logbufbytes of stdout are stored in logbuf. */ -+static apr_status_t cgi_handle_request(request_rec *r, apr_file_t *script_out, -+ apr_bucket_brigade *bb, -+ char *logbuf, apr_size_t logbufbytes) -+{ -+ int seen_eos = 0; -+ int child_stopped_reading = 0; -+ apr_status_t rv; -+ int dbpos = 0; -+ -+ do { -+ apr_bucket *bucket; -+ -+ rv = ap_get_brigade(r->input_filters, bb, AP_MODE_READBYTES, -+ APR_BLOCK_READ, HUGE_STRING_LEN); -+ -+ if (rv != APR_SUCCESS) { -+ return rv; -+ } -+ -+ for (bucket = APR_BRIGADE_FIRST(bb); -+ bucket != APR_BRIGADE_SENTINEL(bb); -+ bucket = APR_BUCKET_NEXT(bucket)) -+ { -+ const char *data; -+ apr_size_t len; -+ -+ if (APR_BUCKET_IS_EOS(bucket)) { -+ seen_eos = 1; -+ break; -+ } -+ -+ /* We can't do much with this. */ -+ if (APR_BUCKET_IS_FLUSH(bucket)) { -+ continue; -+ } -+ -+ /* If the child stopped, we still must read to EOS. */ -+ if (child_stopped_reading) { -+ continue; -+ } -+ -+ /* read */ -+ rv = apr_bucket_read(bucket, &data, &len, APR_BLOCK_READ); -+ if (rv) { -+ return rv; -+ } -+ -+ if (logbufbytes && dbpos < logbufbytes) { -+ int cursize; -+ -+ if ((dbpos + len) > logbufbytes) { -+ cursize = logbufbytes - dbpos; -+ } -+ else { -+ cursize = len; -+ } -+ memcpy(logbuf + dbpos, data, cursize); -+ dbpos += cursize; -+ } -+ -+ /* Keep writing data to the child until done or too much time -+ * elapses with no progress or an error occurs. -+ */ -+ rv = apr_file_write_full(script_out, data, len, NULL); -+ -+ if (rv != APR_SUCCESS) { -+ /* silly script stopped reading, soak up remaining message */ -+ child_stopped_reading = 1; -+ ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(02651) -+ "Error writing request body to script %s", -+ r->filename); -+ } -+ } -+ apr_brigade_cleanup(bb); -+ } -+ while (!seen_eos); -+ -+ if (logbuf) { -+ logbuf[dbpos] = '\0'; -+ } -+ -+ return APR_SUCCESS; -+} -diff --git a/modules/generators/config5.m4 b/modules/generators/config5.m4 -index bf295217e0..086355353b 100644 ---- a/modules/generators/config5.m4 -+++ b/modules/generators/config5.m4 -@@ -78,4 +78,15 @@ fi - - 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 -diff --git a/modules/generators/mod_cgi.c b/modules/generators/mod_cgi.c -index 7e4b126c10..421124a0cb 100644 ---- a/modules/generators/mod_cgi.c -+++ b/modules/generators/mod_cgi.c -@@ -61,9 +61,6 @@ - - module AP_MODULE_DECLARE_DATA cgi_module; - --static APR_OPTIONAL_FN_TYPE(ap_register_include_handler) *cgi_pfn_reg_with_ssi; --static APR_OPTIONAL_FN_TYPE(ap_ssi_get_tag_and_value) *cgi_pfn_gtv; --static APR_OPTIONAL_FN_TYPE(ap_ssi_parse_string) *cgi_pfn_ps; - static APR_OPTIONAL_FN_TYPE(ap_cgi_build_command) *cgi_build_command; - - /* Read and discard the data in the brigade produced by a CGI script */ -@@ -92,6 +89,15 @@ typedef struct { - apr_size_t bufbytes; - } cgi_server_conf; - -+typedef struct { -+ apr_interval_time_t timeout; -+} cgi_dirconf; -+ -+#if APR_FILES_AS_SOCKETS -+#define WANT_CGI_BUCKET -+#endif -+#include "cgi_common.h" -+ - static void *create_cgi_config(apr_pool_t *p, server_rec *s) - { - cgi_server_conf *c = -@@ -112,6 +118,12 @@ static void *merge_cgi_config(apr_pool_t *p, void *basev, void *overridesv) - return overrides->logname ? overrides : base; - } - -+static void *create_cgi_dirconf(apr_pool_t *p, char *dummy) -+{ -+ cgi_dirconf *c = (cgi_dirconf *) apr_pcalloc(p, sizeof(cgi_dirconf)); -+ return c; -+} -+ - static const char *set_scriptlog(cmd_parms *cmd, void *dummy, const char *arg) - { - server_rec *s = cmd->server; -@@ -150,6 +162,17 @@ static const char *set_scriptlog_buffer(cmd_parms *cmd, void *dummy, - return NULL; - } - -+static const char *set_script_timeout(cmd_parms *cmd, void *dummy, const char *arg) -+{ -+ cgi_dirconf *dc = dummy; -+ -+ if (ap_timeout_parameter_parse(arg, &dc->timeout, "s") != APR_SUCCESS) { -+ return "CGIScriptTimeout has wrong format"; -+ } -+ -+ return NULL; -+} -+ - static const command_rec cgi_cmds[] = - { - AP_INIT_TAKE1("ScriptLog", set_scriptlog, NULL, RSRC_CONF, -@@ -158,67 +181,12 @@ AP_INIT_TAKE1("ScriptLogLength", set_scriptlog_length, NULL, RSRC_CONF, - "the maximum length (in bytes) of the script debug log"), - AP_INIT_TAKE1("ScriptLogBuffer", set_scriptlog_buffer, NULL, RSRC_CONF, - "the maximum size (in bytes) to record of a POST request"), -+AP_INIT_TAKE1("CGIScriptTimeout", set_script_timeout, NULL, RSRC_CONF | ACCESS_CONF, -+ "The amount of time to wait between successful reads from " -+ "the CGI script, in seconds."), - {NULL} - }; - --static int log_scripterror(request_rec *r, cgi_server_conf * conf, int ret, -- apr_status_t rv, char *logno, char *error) --{ -- apr_file_t *f = NULL; -- apr_finfo_t finfo; -- char time_str[APR_CTIME_LEN]; -- int log_flags = rv ? APLOG_ERR : APLOG_ERR; -- -- /* Intentional no APLOGNO */ -- /* Callee provides APLOGNO in error text */ -- ap_log_rerror(APLOG_MARK, log_flags, rv, r, -- "%s%s: %s", logno ? logno : "", error, r->filename); -- -- /* XXX Very expensive mainline case! Open, then getfileinfo! */ -- if (!conf->logname || -- ((apr_stat(&finfo, conf->logname, -- APR_FINFO_SIZE, r->pool) == APR_SUCCESS) && -- (finfo.size > conf->logbytes)) || -- (apr_file_open(&f, conf->logname, -- APR_APPEND|APR_WRITE|APR_CREATE, APR_OS_DEFAULT, -- r->pool) != APR_SUCCESS)) { -- return ret; -- } -- -- /* "%% [Wed Jun 19 10:53:21 1996] GET /cgi-bin/printenv HTTP/1.0" */ -- apr_ctime(time_str, apr_time_now()); -- apr_file_printf(f, "%%%% [%s] %s %s%s%s %s\n", time_str, r->method, r->uri, -- r->args ? "?" : "", r->args ? r->args : "", r->protocol); -- /* "%% 500 /usr/local/apache/cgi-bin */ -- apr_file_printf(f, "%%%% %d %s\n", ret, r->filename); -- -- apr_file_printf(f, "%%error\n%s\n", error); -- -- apr_file_close(f); -- return ret; --} -- --/* Soak up stderr from a script and redirect it to the error log. -- */ --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; -- cgi_server_conf *conf = ap_get_module_config(r->server->module_config, &cgi_module); -- -- while ((rv = apr_file_gets(argsbuffer, HUGE_STRING_LEN, -- script_err)) == APR_SUCCESS) { -- newline = strchr(argsbuffer, '\n'); -- if (newline) { -- *newline = '\0'; -- } -- log_scripterror(r, conf, r->status, 0, APLOGNO(01215), argsbuffer); -- } -- -- return rv; --} -- - static int log_script(request_rec *r, cgi_server_conf * conf, int ret, - char *dbuf, const char *sbuf, apr_bucket_brigade *bb, - apr_file_t *script_err) -@@ -466,23 +434,26 @@ static apr_status_t run_cgi_child(apr_file_t **script_out, - apr_filepath_name_get(r->filename)); - } - else { -+ cgi_dirconf *dc = ap_get_module_config(r->per_dir_config, &cgi_module); -+ apr_interval_time_t timeout = dc->timeout > 0 ? dc->timeout : r->server->timeout; -+ - apr_pool_note_subprocess(p, procnew, APR_KILL_AFTER_TIMEOUT); - - *script_in = procnew->out; - if (!*script_in) - return APR_EBADF; -- apr_file_pipe_timeout_set(*script_in, r->server->timeout); -+ apr_file_pipe_timeout_set(*script_in, timeout); - - if (e_info->prog_type == RUN_AS_CGI) { - *script_out = procnew->in; - if (!*script_out) - return APR_EBADF; -- apr_file_pipe_timeout_set(*script_out, r->server->timeout); -+ apr_file_pipe_timeout_set(*script_out, timeout); - - *script_err = procnew->err; - if (!*script_err) - return APR_EBADF; -- apr_file_pipe_timeout_set(*script_err, r->server->timeout); -+ apr_file_pipe_timeout_set(*script_err, timeout); - } - } - } -@@ -536,234 +507,30 @@ static apr_status_t default_build_command(const char **cmd, const char ***argv, - return APR_SUCCESS; - } - --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); -- } --} -- --#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; -- apr_status_t rv; -- int gotdata = 0; -- -- timeout = block == APR_NONBLOCK_READ ? 0 : 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 --}; -- --#endif -- - static int cgi_handler(request_rec *r) - { - int nph; -- apr_size_t dbpos = 0; -+ apr_size_t dbufsize; - const char *argv0; - const char *command; - const char **argv; - char *dbuf = NULL; - apr_file_t *script_out = NULL, *script_in = NULL, *script_err = NULL; -- apr_bucket_brigade *bb; -+ conn_rec *c = r->connection; -+ apr_bucket_brigade *bb = apr_brigade_create(r->pool, c->bucket_alloc); - apr_bucket *b; - int is_included; -- int seen_eos, child_stopped_reading; - apr_pool_t *p; - cgi_server_conf *conf; - apr_status_t rv; - cgi_exec_info_t e_info; -- conn_rec *c; -+ cgi_dirconf *dc = ap_get_module_config(r->per_dir_config, &cgi_module); -+ apr_interval_time_t timeout = dc->timeout > 0 ? dc->timeout : r->server->timeout; - - if (strcmp(r->handler, CGI_MAGIC_TYPE) && strcmp(r->handler, "cgi-script")) { - return DECLINED; - } - -- c = r->connection; -- - is_included = !strcmp(r->protocol, "INCLUDED"); - - p = r->main ? r->main->pool : r->pool; -@@ -832,83 +599,24 @@ static int cgi_handler(request_rec *r) - return HTTP_INTERNAL_SERVER_ERROR; - } - -- /* Transfer any put/post args, CERN style... -- * Note that we already ignore SIGPIPE in the core server. -- */ -- bb = apr_brigade_create(r->pool, c->bucket_alloc); -- seen_eos = 0; -- child_stopped_reading = 0; -+ /* Buffer for logging script stdout. */ - if (conf->logname) { -- dbuf = apr_palloc(r->pool, conf->bufbytes + 1); -- dbpos = 0; -+ dbufsize = conf->bufbytes; -+ dbuf = apr_palloc(r->pool, dbufsize + 1); - } -- do { -- apr_bucket *bucket; -- -- rv = ap_get_brigade(r->input_filters, bb, AP_MODE_READBYTES, -- APR_BLOCK_READ, HUGE_STRING_LEN); -- -- if (rv != APR_SUCCESS) { -- ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01225) -- "Error reading request entity data"); -- return ap_map_http_request_error(rv, HTTP_BAD_REQUEST); -- } -- -- for (bucket = APR_BRIGADE_FIRST(bb); -- bucket != APR_BRIGADE_SENTINEL(bb); -- bucket = APR_BUCKET_NEXT(bucket)) -- { -- const char *data; -- apr_size_t len; -- -- if (APR_BUCKET_IS_EOS(bucket)) { -- seen_eos = 1; -- break; -- } -- -- /* We can't do much with this. */ -- if (APR_BUCKET_IS_FLUSH(bucket)) { -- continue; -- } -- -- /* If the child stopped, we still must read to EOS. */ -- if (child_stopped_reading) { -- continue; -- } -- -- /* read */ -- apr_bucket_read(bucket, &data, &len, APR_BLOCK_READ); -- -- if (conf->logname && dbpos < conf->bufbytes) { -- int cursize; -- -- if ((dbpos + len) > conf->bufbytes) { -- cursize = conf->bufbytes - dbpos; -- } -- else { -- cursize = len; -- } -- memcpy(dbuf + dbpos, data, cursize); -- dbpos += cursize; -- } -- -- /* Keep writing data to the child until done or too much time -- * elapses with no progress or an error occurs. -- */ -- rv = apr_file_write_full(script_out, data, len, NULL); -- -- if (rv != APR_SUCCESS) { -- /* silly script stopped reading, soak up remaining message */ -- child_stopped_reading = 1; -- } -- } -- apr_brigade_cleanup(bb); -+ else { -+ dbufsize = 0; -+ dbuf = NULL; - } -- while (!seen_eos); - -- if (conf->logname) { -- dbuf[dbpos] = '\0'; -+ /* Read the request body. */ -+ rv = cgi_handle_request(r, script_out, bb, dbuf, dbufsize); -+ if (rv) { -+ ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01225) -+ "Error reading request entity data"); -+ return ap_map_http_request_error(rv, HTTP_BAD_REQUEST); - } -+ - /* Is this flush really needed? */ - apr_file_flush(script_out); - apr_file_close(script_out); -@@ -916,10 +624,7 @@ static int cgi_handler(request_rec *r) - AP_DEBUG_ASSERT(script_in != NULL); - - #if APR_FILES_AS_SOCKETS -- 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 -@@ -929,111 +634,7 @@ static int cgi_handler(request_rec *r) - 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, 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); -- 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" -- */ -- 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); -- 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); - } - - /*============================================================================ -@@ -1147,107 +748,9 @@ static apr_status_t include_cmd(include_ctx_t *ctx, ap_filter_t *f, - return APR_SUCCESS; - } - --static apr_status_t handle_exec(include_ctx_t *ctx, ap_filter_t *f, -- apr_bucket_brigade *bb) --{ -- char *tag = NULL; -- char *tag_val = NULL; -- request_rec *r = f->r; -- char *file = r->filename; -- char parsed_string[MAX_STRING_LEN]; -- -- if (!ctx->argc) { -- ap_log_rerror(APLOG_MARK, -- (ctx->flags & SSI_FLAG_PRINTING) -- ? APLOG_ERR : APLOG_WARNING, -- 0, r, APLOGNO(03195) -- "missing argument for exec element in %s", r->filename); -- } -- -- if (!(ctx->flags & SSI_FLAG_PRINTING)) { -- return APR_SUCCESS; -- } -- -- if (!ctx->argc) { -- SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -- return APR_SUCCESS; -- } -- -- if (ctx->flags & SSI_FLAG_NO_EXEC) { -- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01228) "exec used but not allowed " -- "in %s", r->filename); -- SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -- return APR_SUCCESS; -- } -- -- while (1) { -- cgi_pfn_gtv(ctx, &tag, &tag_val, SSI_VALUE_DECODED); -- if (!tag || !tag_val) { -- break; -- } -- -- if (!strcmp(tag, "cmd")) { -- apr_status_t rv; -- -- cgi_pfn_ps(ctx, tag_val, parsed_string, sizeof(parsed_string), -- SSI_EXPAND_LEAVE_NAME); -- -- rv = include_cmd(ctx, f, bb, parsed_string); -- if (rv != APR_SUCCESS) { -- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01229) "execution failure " -- "for parameter \"%s\" to tag exec in file %s", -- tag, r->filename); -- SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -- break; -- } -- } -- else if (!strcmp(tag, "cgi")) { -- apr_status_t rv; -- -- cgi_pfn_ps(ctx, tag_val, parsed_string, sizeof(parsed_string), -- SSI_EXPAND_DROP_NAME); -- -- rv = include_cgi(ctx, f, bb, parsed_string); -- if (rv != APR_SUCCESS) { -- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01230) "invalid CGI ref " -- "\"%s\" in %s", tag_val, file); -- SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -- break; -- } -- } -- else { -- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01231) "unknown parameter " -- "\"%s\" to tag exec in %s", tag, file); -- SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -- break; -- } -- } -- -- return APR_SUCCESS; --} -- -- --/*============================================================================ -- *============================================================================ -- * This is the end of the cgi filter code moved from mod_include. -- *============================================================================ -- *============================================================================*/ -- -- - static int cgi_post_config(apr_pool_t *p, apr_pool_t *plog, - apr_pool_t *ptemp, server_rec *s) - { -- cgi_pfn_reg_with_ssi = APR_RETRIEVE_OPTIONAL_FN(ap_register_include_handler); -- cgi_pfn_gtv = APR_RETRIEVE_OPTIONAL_FN(ap_ssi_get_tag_and_value); -- cgi_pfn_ps = APR_RETRIEVE_OPTIONAL_FN(ap_ssi_parse_string); -- -- if ((cgi_pfn_reg_with_ssi) && (cgi_pfn_gtv) && (cgi_pfn_ps)) { -- /* Required by mod_include filter. This is how mod_cgi registers -- * with mod_include to provide processing of the exec directive. -- */ -- cgi_pfn_reg_with_ssi("exec", handle_exec); -- } -- - /* This is the means by which unusual (non-unix) os's may find alternate - * means to run a given command (e.g. shebang/registry parsing on Win32) - */ -@@ -1263,12 +766,13 @@ static void register_hooks(apr_pool_t *p) - static const char * const aszPre[] = { "mod_include.c", NULL }; - ap_hook_handler(cgi_handler, NULL, NULL, APR_HOOK_MIDDLE); - ap_hook_post_config(cgi_post_config, aszPre, NULL, APR_HOOK_REALLY_FIRST); -+ ap_hook_optional_fn_retrieve(cgi_optfns_retrieve, NULL, NULL, APR_HOOK_MIDDLE); - } - - AP_DECLARE_MODULE(cgi) = - { - STANDARD20_MODULE_STUFF, -- NULL, /* dir config creater */ -+ create_cgi_dirconf, /* dir config creater */ - NULL, /* dir merger --- default is to override */ - create_cgi_config, /* server config */ - merge_cgi_config, /* merge server config */ -diff --git a/modules/generators/mod_cgid.c b/modules/generators/mod_cgid.c -index 2258a683b7..dddfb25254 100644 ---- a/modules/generators/mod_cgid.c -+++ b/modules/generators/mod_cgid.c -@@ -80,11 +80,6 @@ module AP_MODULE_DECLARE_DATA cgid_module; - - static int cgid_start(apr_pool_t *p, server_rec *main_server, apr_proc_t *procnew); - static int cgid_init(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *main_server); --static int handle_exec(include_ctx_t *ctx, ap_filter_t *f, apr_bucket_brigade *bb); -- --static APR_OPTIONAL_FN_TYPE(ap_register_include_handler) *cgid_pfn_reg_with_ssi; --static APR_OPTIONAL_FN_TYPE(ap_ssi_get_tag_and_value) *cgid_pfn_gtv; --static APR_OPTIONAL_FN_TYPE(ap_ssi_parse_string) *cgid_pfn_ps; - - static apr_pool_t *pcgi = NULL; - static pid_t daemon_pid; -@@ -220,6 +215,15 @@ typedef struct { - #endif - } cgid_req_t; - -+#define cgi_server_conf cgid_server_conf -+#define cgi_module cgid_module -+ -+#ifdef HAVE_CGID_FDPASSING -+/* Pull in CGI bucket implementation. */ -+#define WANT_CGI_BUCKET -+#endif -+#include "cgi_common.h" -+ - /* This routine is called to create the argument list to be passed - * to the CGI script. When suexec is enabled, the suexec path, user, and - * group are the first three arguments to be passed; if not, all three -@@ -342,15 +346,19 @@ static apr_status_t close_unix_socket(void *thefd) - return close(fd); - } - --/* deal with incomplete reads and signals -- * assume you really have to read buf_size bytes -- */ --static apr_status_t sock_read(int fd, void *vbuf, size_t buf_size) -+/* Read from the socket dealing with incomplete messages and signals. -+ * Returns 0 on success or errno on failure. Stderr fd passed as -+ * auxiliary data from other end is written to *errfd, or else stderr -+ * fileno if not present. */ -+static apr_status_t sock_readhdr(int fd, int *errfd, void *vbuf, size_t buf_size) - { -- char *buf = vbuf; - int rc; -+#ifndef HAVE_CGID_FDPASSING -+ char *buf = vbuf; - size_t bytes_read = 0; - -+ if (errfd) *errfd = 0; -+ - do { - do { - rc = read(fd, buf + bytes_read, buf_size - bytes_read); -@@ -365,9 +373,60 @@ static apr_status_t sock_read(int fd, void *vbuf, size_t buf_size) - } - } while (bytes_read < buf_size); - -+ -+#else /* with FD passing */ -+ struct msghdr msg = {0}; -+ struct iovec vec = {vbuf, buf_size}; -+ struct cmsghdr *cmsg; -+ union { /* union to ensure alignment */ -+ struct cmsghdr cm; -+ char buf[CMSG_SPACE(sizeof(int))]; -+ } u; -+ -+ msg.msg_iov = &vec; -+ msg.msg_iovlen = 1; -+ -+ if (errfd) { -+ msg.msg_control = u.buf; -+ msg.msg_controllen = sizeof(u.buf); -+ *errfd = 0; -+ } -+ -+ /* use MSG_WAITALL to skip loop on truncated reads */ -+ do { -+ rc = recvmsg(fd, &msg, MSG_WAITALL); -+ } while (rc < 0 && errno == EINTR); -+ -+ if (rc == 0) { -+ return ECONNRESET; -+ } -+ else if (rc < 0) { -+ return errno; -+ } -+ else if (rc != buf_size) { -+ /* MSG_WAITALL should ensure the recvmsg blocks until the -+ * entire length is read, but let's be paranoid. */ -+ return APR_INCOMPLETE; -+ } -+ -+ if (errfd -+ && (cmsg = CMSG_FIRSTHDR(&msg)) != NULL -+ && cmsg->cmsg_len == CMSG_LEN(sizeof(*errfd)) -+ && cmsg->cmsg_level == SOL_SOCKET -+ && cmsg->cmsg_type == SCM_RIGHTS) { -+ *errfd = *((int *) CMSG_DATA(cmsg)); -+ } -+#endif -+ - return APR_SUCCESS; - } - -+/* As sock_readhdr but without auxiliary fd passing. */ -+static apr_status_t sock_read(int fd, void *vbuf, size_t buf_size) -+{ -+ return sock_readhdr(fd, NULL, vbuf, buf_size); -+} -+ - /* deal with signals - */ - static apr_status_t sock_write(int fd, const void *buf, size_t buf_size) -@@ -384,7 +443,7 @@ static apr_status_t sock_write(int fd, const void *buf, size_t buf_size) - return APR_SUCCESS; - } - --static apr_status_t sock_writev(int fd, request_rec *r, int count, ...) -+static apr_status_t sock_writev(int fd, int auxfd, request_rec *r, int count, ...) - { - va_list ap; - int rc; -@@ -399,9 +458,39 @@ static apr_status_t sock_writev(int fd, request_rec *r, int count, ...) - } - va_end(ap); - -+#ifndef HAVE_CGID_FDPASSING - do { - rc = writev(fd, vec, count); - } while (rc < 0 && errno == EINTR); -+#else -+ { -+ struct msghdr msg = { 0 }; -+ struct cmsghdr *cmsg; -+ union { /* union for alignment */ -+ char buf[CMSG_SPACE(sizeof(int))]; -+ struct cmsghdr align; -+ } u; -+ -+ msg.msg_iov = vec; -+ msg.msg_iovlen = count; -+ -+ if (auxfd) { -+ msg.msg_control = u.buf; -+ msg.msg_controllen = sizeof(u.buf); -+ -+ cmsg = CMSG_FIRSTHDR(&msg); -+ cmsg->cmsg_level = SOL_SOCKET; -+ cmsg->cmsg_type = SCM_RIGHTS; -+ cmsg->cmsg_len = CMSG_LEN(sizeof(int)); -+ *((int *) CMSG_DATA(cmsg)) = auxfd; -+ } -+ -+ do { -+ rc = sendmsg(fd, &msg, 0); -+ } while (rc < 0 && errno == EINTR); -+ } -+#endif -+ - if (rc < 0) { - return errno; - } -@@ -410,7 +499,7 @@ static apr_status_t sock_writev(int fd, request_rec *r, int count, ...) - } - - static apr_status_t get_req(int fd, request_rec *r, char **argv0, char ***env, -- cgid_req_t *req) -+ int *errfd, cgid_req_t *req) - { - int i; - char **environ; -@@ -421,7 +510,7 @@ static apr_status_t get_req(int fd, request_rec *r, char **argv0, char ***env, - r->server = apr_pcalloc(r->pool, sizeof(server_rec)); - - /* read the request header */ -- stat = sock_read(fd, req, sizeof(*req)); -+ stat = sock_readhdr(fd, errfd, req, sizeof(*req)); - if (stat != APR_SUCCESS) { - return stat; - } -@@ -431,6 +520,14 @@ static apr_status_t get_req(int fd, request_rec *r, char **argv0, char ***env, - return APR_SUCCESS; - } - -+ /* Sanity check the structure received. */ -+ if (req->env_count < 0 || req->uri_len == 0 -+ || req->filename_len > APR_PATH_MAX || req->filename_len == 0 -+ || req->argv0_len > APR_PATH_MAX || req->argv0_len == 0 -+ || req->loglevel > APLOG_TRACE8) { -+ return APR_EINVAL; -+ } -+ - /* handle module indexes and such */ - rconf = (void **)ap_create_request_config(r->pool); - -@@ -479,14 +576,15 @@ 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, -+ const char *argv0, char **env, int req_type) - { - int i; - cgid_req_t req = {0}; - apr_status_t stat; - ap_unix_identity_t * ugid = ap_run_get_suexec_identity(r); - core_dir_config *core_conf = ap_get_core_module_config(r->per_dir_config); -+ int errfd; - - - if (ugid == NULL) { -@@ -507,16 +605,21 @@ 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 (errpipe) -+ apr_os_file_get(&errfd, errpipe); -+ else -+ errfd = 0; -+ - /* Write the request header */ - if (req.args_len) { -- stat = sock_writev(fd, r, 5, -+ stat = sock_writev(fd, errfd, r, 5, - &req, sizeof(req), - r->filename, req.filename_len, - argv0, req.argv0_len, - r->uri, req.uri_len, - r->args, req.args_len); - } else { -- stat = sock_writev(fd, r, 4, -+ stat = sock_writev(fd, errfd, r, 4, - &req, sizeof(req), - r->filename, req.filename_len, - argv0, req.argv0_len, -@@ -531,7 +634,7 @@ static apr_status_t send_req(int fd, request_rec *r, char *argv0, char **env, - for (i = 0; i < req.env_count; i++) { - apr_size_t curlen = strlen(env[i]); - -- if ((stat = sock_writev(fd, r, 2, &curlen, sizeof(curlen), -+ if ((stat = sock_writev(fd, 0, r, 2, &curlen, sizeof(curlen), - env[i], curlen)) != APR_SUCCESS) { - return stat; - } -@@ -582,20 +685,34 @@ 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; -- -- /* 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); -+ 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) -@@ -670,7 +787,7 @@ static int cgid_server(void *data) - } - - while (!daemon_should_exit) { -- int errfileno = STDERR_FILENO; -+ int errfileno; - char *argv0 = NULL; - char **env = NULL; - const char * const *argv; -@@ -710,7 +827,7 @@ static int cgid_server(void *data) - r = apr_pcalloc(ptrans, sizeof(request_rec)); - procnew = apr_pcalloc(ptrans, sizeof(*procnew)); - r->pool = ptrans; -- stat = get_req(sd2, r, &argv0, &env, &cgid_req); -+ stat = get_req(sd2, r, &argv0, &env, &errfileno, &cgid_req); - if (stat != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_ERR, stat, - main_server, APLOGNO(01248) -@@ -742,6 +859,16 @@ static int cgid_server(void *data) - continue; - } - -+ if (errfileno == 0) { -+ errfileno = STDERR_FILENO; -+ } -+ else { -+ ap_log_error(APLOG_MARK, APLOG_DEBUG, rv, main_server, -+ "using passed fd %d as stderr", errfileno); -+ /* Limit the received fd lifetime to pool lifetime */ -+ apr_pool_cleanup_register(ptrans, (void *)((long)errfileno), -+ close_unix_socket, close_unix_socket); -+ } - apr_os_file_put(&r->server->error_log, &errfileno, 0, r->pool); - apr_os_file_put(&inout, &sd2, 0, r->pool); - -@@ -801,7 +928,10 @@ static int cgid_server(void *data) - close(sd2); - } - else { -- apr_pool_userdata_set(r, ERRFN_USERDATA_KEY, apr_pool_cleanup_null, ptrans); -+ 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); - -@@ -946,16 +1076,6 @@ static int cgid_init(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp, - if (ret != OK ) { - return ret; - } -- cgid_pfn_reg_with_ssi = APR_RETRIEVE_OPTIONAL_FN(ap_register_include_handler); -- cgid_pfn_gtv = APR_RETRIEVE_OPTIONAL_FN(ap_ssi_get_tag_and_value); -- cgid_pfn_ps = APR_RETRIEVE_OPTIONAL_FN(ap_ssi_parse_string); -- -- if ((cgid_pfn_reg_with_ssi) && (cgid_pfn_gtv) && (cgid_pfn_ps)) { -- /* Required by mod_include filter. This is how mod_cgid registers -- * with mod_include to provide processing of the exec directive. -- */ -- cgid_pfn_reg_with_ssi("exec", handle_exec); -- } - } - return ret; - } -@@ -1066,41 +1186,6 @@ static const command_rec cgid_cmds[] = - {NULL} - }; - --static int log_scripterror(request_rec *r, cgid_server_conf * conf, int ret, -- apr_status_t rv, char *error) --{ -- apr_file_t *f = NULL; -- struct stat finfo; -- char time_str[APR_CTIME_LEN]; -- int log_flags = rv ? APLOG_ERR : APLOG_ERR; -- -- /* Intentional no APLOGNO */ -- /* Callee provides APLOGNO in error text */ -- ap_log_rerror(APLOG_MARK, log_flags, rv, r, -- "%s: %s", error, r->filename); -- -- /* XXX Very expensive mainline case! Open, then getfileinfo! */ -- if (!conf->logname || -- ((stat(conf->logname, &finfo) == 0) -- && (finfo.st_size > conf->logbytes)) || -- (apr_file_open(&f, conf->logname, -- APR_APPEND|APR_WRITE|APR_CREATE, APR_OS_DEFAULT, r->pool) != APR_SUCCESS)) { -- return ret; -- } -- -- /* "%% [Wed Jun 19 10:53:21 1996] GET /cgid-bin/printenv HTTP/1.0" */ -- apr_ctime(time_str, apr_time_now()); -- apr_file_printf(f, "%%%% [%s] %s %s%s%s %s\n", time_str, r->method, r->uri, -- r->args ? "?" : "", r->args ? r->args : "", r->protocol); -- /* "%% 500 /usr/local/apache/cgid-bin */ -- apr_file_printf(f, "%%%% %d %s\n", ret, r->filename); -- -- apr_file_printf(f, "%%error\n%s\n", error); -- -- apr_file_close(f); -- return ret; --} -- - 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) -@@ -1221,7 +1306,7 @@ static int connect_to_daemon(int *sdptr, request_rec *r, - ++connect_tries; - if ((sd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) { - return log_scripterror(r, conf, HTTP_INTERNAL_SERVER_ERROR, errno, -- APLOGNO(01255) "unable to create socket to cgi daemon"); -+ APLOGNO(01255), "unable to create socket to cgi daemon"); - } - if (connect(sd, (struct sockaddr *)server_addr, server_addr_len) < 0) { - /* Save errno for later */ -@@ -1242,7 +1327,7 @@ static int connect_to_daemon(int *sdptr, request_rec *r, - } - else { - close(sd); -- return log_scripterror(r, conf, HTTP_SERVICE_UNAVAILABLE, errno, APLOGNO(01257) -+ return log_scripterror(r, conf, HTTP_SERVICE_UNAVAILABLE, errno, APLOGNO(01257), - "unable to connect to cgi daemon after multiple tries"); - } - } -@@ -1258,13 +1343,15 @@ static int connect_to_daemon(int *sdptr, request_rec *r, - if (connect_errno == ENOENT && - apr_time_sec(apr_time_now() - ap_scoreboard_image->global->restart_time) > - DEFAULT_CONNECT_STARTUP_DELAY) { -- return log_scripterror(r, conf, HTTP_SERVICE_UNAVAILABLE, connect_errno, -- apr_pstrcat(r->pool, APLOGNO(02833) "ScriptSock ", sockname, " does not exist", NULL)); -+ return log_scripterror(r, conf, HTTP_SERVICE_UNAVAILABLE, connect_errno, -+ APLOGNO(02833), -+ apr_pstrcat(r->pool, -+ "ScriptSock ", sockname, " does not exist", NULL)); - } - - /* gotta try again, but make sure the cgid daemon is still around */ - if (connect_errno != ENOENT && kill(daemon_pid, 0) != 0) { -- return log_scripterror(r, conf, HTTP_SERVICE_UNAVAILABLE, connect_errno, APLOGNO(01258) -+ return log_scripterror(r, conf, HTTP_SERVICE_UNAVAILABLE, connect_errno, APLOGNO(01258), - "cgid daemon is gone; is Apache terminating?"); - } - } -@@ -1272,23 +1359,6 @@ static int connect_to_daemon(int *sdptr, request_rec *r, - return OK; - } - --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); -- } --} -- - /**************************************************************** - * - * Actual cgid handling... -@@ -1374,7 +1444,9 @@ static apr_status_t get_cgi_pid(request_rec *r, cgid_server_conf *conf, pid_t * - return stat; - } - -- if (pid == 0) { -+ /* Don't accept zero as a pid here, calling kill(0, SIGTERM) etc -+ * later is unpleasant. */ -+ if (*pid == 0) { - ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01261) - "daemon couldn't find CGI process for connection %lu", - r->connection->id); -@@ -1393,19 +1465,21 @@ static apr_status_t cleanup_script(void *vptr) - - static int cgid_handler(request_rec *r) - { -- int retval, nph, dbpos; -+ conn_rec *c = r->connection; -+ int retval, nph; - char *argv0, *dbuf; -- apr_bucket_brigade *bb; -+ apr_size_t dbufsize; -+ apr_bucket_brigade *bb = apr_brigade_create(r->pool, r->connection->bucket_alloc); - apr_bucket *b; - cgid_server_conf *conf; - int is_included; -- 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; -@@ -1414,7 +1488,7 @@ 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) { -@@ -1429,12 +1503,12 @@ static int cgid_handler(request_rec *r) - argv0 = r->filename; - - if (!(ap_allow_options(r) & OPT_EXECCGI) && !is_scriptaliased(r)) { -- return log_scripterror(r, conf, HTTP_FORBIDDEN, 0, APLOGNO(01262) -+ return log_scripterror(r, conf, HTTP_FORBIDDEN, 0, APLOGNO(01262), - "Options ExecCGI is off in this directory"); - } - - if (nph && is_included) { -- return log_scripterror(r, conf, HTTP_FORBIDDEN, 0, APLOGNO(01263) -+ return log_scripterror(r, conf, HTTP_FORBIDDEN, 0, APLOGNO(01263), - "attempt to include NPH CGI script"); - } - -@@ -1443,12 +1517,12 @@ static int cgid_handler(request_rec *r) - #error at mod_cgi.c for required code in this path. - #else - if (r->finfo.filetype == APR_NOFILE) { -- return log_scripterror(r, conf, HTTP_NOT_FOUND, 0, APLOGNO(01264) -+ return log_scripterror(r, conf, HTTP_NOT_FOUND, 0, APLOGNO(01264), - "script not found or unable to stat"); - } - #endif - if (r->finfo.filetype == APR_DIR) { -- return log_scripterror(r, conf, HTTP_FORBIDDEN, 0, APLOGNO(01265) -+ return log_scripterror(r, conf, HTTP_FORBIDDEN, 0, APLOGNO(01265), - "attempt to invoke directory as script"); - } - -@@ -1456,7 +1530,7 @@ static int cgid_handler(request_rec *r) - r->path_info && *r->path_info) - { - /* default to accept */ -- return log_scripterror(r, conf, HTTP_NOT_FOUND, 0, APLOGNO(01266) -+ return log_scripterror(r, conf, HTTP_NOT_FOUND, 0, APLOGNO(01266), - "AcceptPathInfo off disallows user's path"); - } - /* -@@ -1467,6 +1541,17 @@ 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. -@@ -1479,24 +1564,28 @@ 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"); -+ return log_scripterror(r, conf, HTTP_SERVICE_UNAVAILABLE, rv, APLOGNO(10245), -+ "could not send request to cgi daemon"); - } - -+ /* 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; - rv = get_cgi_pid(r, conf, &(info->pid)); - -- if (APR_SUCCESS == rv){ -+ if (rv == APR_SUCCESS) { - apr_pool_cleanup_register(r->pool, info, -- cleanup_script, -- apr_pool_cleanup_null); -+ cleanup_script, apr_pool_cleanup_null); - } - else { -- ap_log_rerror(APLOG_MARK, APLOG_DEBUG, rv, r, "error determining cgi PID"); -+ return log_scripterror(r, conf, HTTP_SERVICE_UNAVAILABLE, rv, APLOGNO(10246), -+ "failed reading PID from cgi daemon"); - } - - /* We are putting the socket discriptor into an apr_file_t so that we can -@@ -1506,95 +1595,25 @@ 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... -- * Note that we already ignore SIGPIPE in the core server. -- */ -- bb = apr_brigade_create(r->pool, r->connection->bucket_alloc); -- seen_eos = 0; -- child_stopped_reading = 0; -- dbuf = NULL; -- dbpos = 0; -+ /* Buffer for logging script stdout. */ - if (conf->logname) { -- dbuf = apr_palloc(r->pool, conf->bufbytes + 1); -+ dbufsize = conf->bufbytes; -+ dbuf = apr_palloc(r->pool, dbufsize + 1); - } -- do { -- apr_bucket *bucket; -- -- rv = ap_get_brigade(r->input_filters, bb, AP_MODE_READBYTES, -- APR_BLOCK_READ, HUGE_STRING_LEN); -- -- if (rv != APR_SUCCESS) { -- ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01270) -- "Error reading request entity data"); -- return ap_map_http_request_error(rv, HTTP_BAD_REQUEST); -- } -- -- for (bucket = APR_BRIGADE_FIRST(bb); -- bucket != APR_BRIGADE_SENTINEL(bb); -- bucket = APR_BUCKET_NEXT(bucket)) -- { -- const char *data; -- apr_size_t len; -- -- if (APR_BUCKET_IS_EOS(bucket)) { -- seen_eos = 1; -- break; -- } -- -- /* We can't do much with this. */ -- if (APR_BUCKET_IS_FLUSH(bucket)) { -- continue; -- } -- -- /* If the child stopped, we still must read to EOS. */ -- if (child_stopped_reading) { -- continue; -- } -- -- /* read */ -- apr_bucket_read(bucket, &data, &len, APR_BLOCK_READ); -- -- if (conf->logname && dbpos < conf->bufbytes) { -- int cursize; -- -- if ((dbpos + len) > conf->bufbytes) { -- cursize = conf->bufbytes - dbpos; -- } -- else { -- cursize = len; -- } -- memcpy(dbuf + dbpos, data, cursize); -- dbpos += cursize; -- } -- -- /* Keep writing data to the child until done or too much time -- * elapses with no progress or an error occurs. -- */ -- rv = apr_file_write_full(tempsock, data, len, NULL); -- -- if (rv != APR_SUCCESS) { -- /* silly script stopped reading, soak up remaining message */ -- child_stopped_reading = 1; -- ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(02651) -- "Error writing request body to script %s", -- r->filename); -- -- } -- } -- apr_brigade_cleanup(bb); -+ else { -+ dbuf = NULL; -+ dbufsize = 0; - } -- while (!seen_eos); - -- if (conf->logname) { -- dbuf[dbpos] = '\0'; -+ /* Read the request body. */ -+ rv = cgi_handle_request(r, tempsock, bb, dbuf, dbufsize); -+ if (rv) { -+ ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(01270) -+ "Error reading request entity data"); -+ return ap_map_http_request_error(rv, HTTP_BAD_REQUEST); - } - - /* we're done writing, or maybe we didn't write at all; -@@ -1603,125 +1622,22 @@ 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); -- 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); -+#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); - -- return OK; /* NOT r->status, even if it has changed. */ -+ return cgi_handle_response(r, nph, bb, timeout, conf, dbuf, script_err); - } - -- -- -- --/*============================================================================ -- *============================================================================ -- * This is the beginning of the cgi filter code moved from mod_include. This -- * is the code required to handle the "exec" SSI directive. -- *============================================================================ -- *============================================================================*/ -+/* Handling include= for mod_include. */ - static apr_status_t include_cgi(include_ctx_t *ctx, ap_filter_t *f, - apr_bucket_brigade *bb, char *s) - { -@@ -1806,7 +1722,7 @@ static void add_ssi_vars(request_rec *r) - } - - static int include_cmd(include_ctx_t *ctx, ap_filter_t *f, -- apr_bucket_brigade *bb, char *command) -+ apr_bucket_brigade *bb, const char *command) - { - char **env; - int sd; -@@ -1827,7 +1743,7 @@ 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; -@@ -1872,91 +1788,6 @@ static int include_cmd(include_ctx_t *ctx, ap_filter_t *f, - return APR_SUCCESS; - } - --static apr_status_t handle_exec(include_ctx_t *ctx, ap_filter_t *f, -- apr_bucket_brigade *bb) --{ -- char *tag = NULL; -- char *tag_val = NULL; -- request_rec *r = f->r; -- char *file = r->filename; -- char parsed_string[MAX_STRING_LEN]; -- -- if (!ctx->argc) { -- ap_log_rerror(APLOG_MARK, -- (ctx->flags & SSI_FLAG_PRINTING) -- ? APLOG_ERR : APLOG_WARNING, -- 0, r, APLOGNO(03196) -- "missing argument for exec element in %s", r->filename); -- } -- -- if (!(ctx->flags & SSI_FLAG_PRINTING)) { -- return APR_SUCCESS; -- } -- -- if (!ctx->argc) { -- SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -- return APR_SUCCESS; -- } -- -- if (ctx->flags & SSI_FLAG_NO_EXEC) { -- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01271) "exec used but not allowed " -- "in %s", r->filename); -- SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -- return APR_SUCCESS; -- } -- -- while (1) { -- cgid_pfn_gtv(ctx, &tag, &tag_val, SSI_VALUE_DECODED); -- if (!tag || !tag_val) { -- break; -- } -- -- if (!strcmp(tag, "cmd")) { -- apr_status_t rv; -- -- cgid_pfn_ps(ctx, tag_val, parsed_string, sizeof(parsed_string), -- SSI_EXPAND_LEAVE_NAME); -- -- rv = include_cmd(ctx, f, bb, parsed_string); -- if (rv != APR_SUCCESS) { -- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01272) -- "execution failure for parameter \"%s\" " -- "to tag exec in file %s", tag, r->filename); -- SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -- break; -- } -- } -- else if (!strcmp(tag, "cgi")) { -- apr_status_t rv; -- -- cgid_pfn_ps(ctx, tag_val, parsed_string, sizeof(parsed_string), -- SSI_EXPAND_DROP_NAME); -- -- rv = include_cgi(ctx, f, bb, parsed_string); -- if (rv != APR_SUCCESS) { -- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01273) "invalid CGI ref " -- "\"%s\" in %s", tag_val, file); -- SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -- break; -- } -- } -- else { -- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(01274) "unknown parameter " -- "\"%s\" to tag exec in %s", tag, file); -- SSI_CREATE_ERROR_BUCKET(ctx, f, bb); -- break; -- } -- } -- -- return APR_SUCCESS; --} --/*============================================================================ -- *============================================================================ -- * This is the end of the cgi filter code moved from mod_include. -- *============================================================================ -- *============================================================================*/ -- -- - static void register_hook(apr_pool_t *p) - { - static const char * const aszPre[] = { "mod_include.c", NULL }; -@@ -1964,6 +1795,7 @@ static void register_hook(apr_pool_t *p) - ap_hook_pre_config(cgid_pre_config, NULL, NULL, APR_HOOK_MIDDLE); - ap_hook_post_config(cgid_init, aszPre, NULL, APR_HOOK_MIDDLE); - ap_hook_handler(cgid_handler, NULL, NULL, APR_HOOK_MIDDLE); -+ ap_hook_optional_fn_retrieve(cgi_optfns_retrieve, NULL, NULL, APR_HOOK_MIDDLE); - } - - AP_DECLARE_MODULE(cgid) = { |