forked from phusion/passenger
/
Configuration.c
1421 lines (1139 loc) · 46.8 KB
/
Configuration.c
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/*
* Copyright (C) Igor Sysoev
* Copyright (C) 2007 Manlio Perillo (manlio.perillo@gmail.com)
* Copyright (C) 2010-2015 Phusion
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>
#include <sys/types.h>
#include <pwd.h>
#include <stdlib.h>
#include <assert.h>
#include "ngx_http_passenger_module.h"
#include "Configuration.h"
#include "ContentHandler.h"
#include "common/Constants.h"
#include "common/agents/LoggingAgent/FilterSupport.h"
#include "common/Utils/modp_b64.h"
static ngx_str_t headers_to_hide[] = {
/* NOTE: Do not hide the "Status" header; some broken HTTP clients
* expect this header. http://code.google.com/p/phusion-passenger/issues/detail?id=177
*/
ngx_string("X-Accel-Expires"),
ngx_string("X-Accel-Redirect"),
ngx_string("X-Accel-Limit-Rate"),
ngx_string("X-Accel-Buffering"),
ngx_null_string
};
passenger_main_conf_t passenger_main_conf;
static ngx_path_init_t ngx_http_proxy_temp_path = {
ngx_string(NGX_HTTP_PROXY_TEMP_PATH), { 1, 2, 0 }
};
static ngx_int_t merge_headers(ngx_conf_t *cf, passenger_loc_conf_t *conf,
passenger_loc_conf_t *prev);
static ngx_int_t merge_string_array(ngx_conf_t *cf, ngx_array_t **prev,
ngx_array_t **conf);
static ngx_int_t merge_string_keyval_table(ngx_conf_t *cf, ngx_array_t **prev,
ngx_array_t **conf);
void *
passenger_create_main_conf(ngx_conf_t *cf)
{
passenger_main_conf_t *conf;
conf = ngx_pcalloc(cf->pool, sizeof(passenger_main_conf_t));
if (conf == NULL) {
return NGX_CONF_ERROR;
}
conf->ctl = ngx_array_create(cf->pool, 1, sizeof(ngx_keyval_t));
if (conf->ctl == NULL) {
return NGX_CONF_ERROR;
}
conf->default_ruby.data = NULL;
conf->default_ruby.len = 0;
conf->log_level = (ngx_int_t) NGX_CONF_UNSET;
conf->debug_log_file.data = NULL;
conf->debug_log_file.len = 0;
conf->data_buffer_dir.data = NULL;
conf->data_buffer_dir.len = 0;
conf->instance_registry_dir.data = NULL;
conf->instance_registry_dir.len = 0;
conf->abort_on_startup_error = NGX_CONF_UNSET;
conf->max_pool_size = NGX_CONF_UNSET_UINT;
conf->pool_idle_time = NGX_CONF_UNSET_UINT;
conf->response_buffer_high_watermark = NGX_CONF_UNSET_UINT;
conf->stat_throttle_rate = NGX_CONF_UNSET_UINT;
conf->user_switching = NGX_CONF_UNSET;
conf->show_version_in_header = NGX_CONF_UNSET;
conf->turbocaching = NGX_CONF_UNSET;
conf->default_user.data = NULL;
conf->default_user.len = 0;
conf->default_group.data = NULL;
conf->default_group.len = 0;
conf->analytics_log_user.data = NULL;
conf->analytics_log_user.len = 0;
conf->analytics_log_group.data = NULL;
conf->analytics_log_group.len = 0;
conf->union_station_gateway_address.data = NULL;
conf->union_station_gateway_address.len = 0;
conf->union_station_gateway_port = (ngx_uint_t) NGX_CONF_UNSET;
conf->union_station_gateway_cert.data = NULL;
conf->union_station_gateway_cert.len = 0;
conf->union_station_proxy_address.data = NULL;
conf->union_station_proxy_address.len = 0;
conf->prestart_uris = ngx_array_create(cf->pool, 1, sizeof(ngx_str_t));
if (conf->prestart_uris == NULL) {
return NGX_CONF_ERROR;
}
return conf;
}
char *
passenger_init_main_conf(ngx_conf_t *cf, void *conf_pointer)
{
passenger_main_conf_t *conf;
struct passwd *user_entry;
struct group *group_entry;
char buf[128];
conf = &passenger_main_conf;
*conf = *((passenger_main_conf_t *) conf_pointer);
if (conf->default_ruby.len == 0) {
conf->default_ruby.data = (u_char *) DEFAULT_RUBY;
conf->default_ruby.len = strlen(DEFAULT_RUBY);
}
if (conf->log_level == (ngx_int_t) NGX_CONF_UNSET) {
conf->log_level = DEFAULT_LOG_LEVEL;
}
if (conf->debug_log_file.len == 0) {
conf->debug_log_file.data = (u_char *) "";
}
if (conf->data_buffer_dir.len == 0) {
conf->data_buffer_dir.data = (u_char *) "";
}
if (conf->instance_registry_dir.len == 0) {
conf->instance_registry_dir.data = (u_char *) "";
}
if (conf->abort_on_startup_error == NGX_CONF_UNSET) {
conf->abort_on_startup_error = 0;
}
if (conf->max_pool_size == NGX_CONF_UNSET_UINT) {
conf->max_pool_size = DEFAULT_MAX_POOL_SIZE;
}
if (conf->pool_idle_time == NGX_CONF_UNSET_UINT) {
conf->pool_idle_time = DEFAULT_POOL_IDLE_TIME;
}
if (conf->response_buffer_high_watermark == NGX_CONF_UNSET_UINT) {
conf->response_buffer_high_watermark = DEFAULT_RESPONSE_BUFFER_HIGH_WATERMARK;
}
if (conf->stat_throttle_rate == NGX_CONF_UNSET_UINT) {
conf->stat_throttle_rate = DEFAULT_STAT_THROTTLE_RATE;
}
if (conf->user_switching == NGX_CONF_UNSET) {
conf->user_switching = 1;
}
if (conf->show_version_in_header == NGX_CONF_UNSET) {
conf->show_version_in_header = 1;
}
if (conf->turbocaching == NGX_CONF_UNSET) {
conf->turbocaching = 1;
}
if (conf->default_user.len == 0) {
conf->default_user.len = sizeof(DEFAULT_WEB_APP_USER) - 1;
conf->default_user.data = (u_char *) DEFAULT_WEB_APP_USER;
}
if (conf->default_user.len > sizeof(buf) - 1) {
return "Value for 'default_user' is too long.";
}
memcpy(buf, conf->default_user.data, conf->default_user.len);
buf[conf->default_user.len] = '\0';
user_entry = getpwnam(buf);
if (user_entry == NULL) {
return "The user specified by the 'default_user' option does not exist.";
}
if (conf->default_group.len > 0) {
if (conf->default_group.len > sizeof(buf) - 1) {
return "Value for 'default_group' is too long.";
}
memcpy(buf, conf->default_group.data, conf->default_group.len);
buf[conf->default_group.len] = '\0';
group_entry = getgrnam(buf);
if (group_entry == NULL) {
return "The group specified by the 'default_group' option does not exist.";
}
}
if (conf->analytics_log_user.len == 0) {
conf->analytics_log_user.len = sizeof(DEFAULT_ANALYTICS_LOG_USER) - 1;
conf->analytics_log_user.data = (u_char *) DEFAULT_ANALYTICS_LOG_USER;
}
if (conf->analytics_log_group.len == 0) {
conf->analytics_log_group.len = sizeof(DEFAULT_ANALYTICS_LOG_GROUP) - 1;
conf->analytics_log_group.data = (u_char *) DEFAULT_ANALYTICS_LOG_GROUP;
}
if (conf->union_station_gateway_address.len == 0) {
conf->union_station_gateway_address.len = sizeof(DEFAULT_UNION_STATION_GATEWAY_ADDRESS) - 1;
conf->union_station_gateway_address.data = (u_char *) DEFAULT_UNION_STATION_GATEWAY_ADDRESS;
}
if (conf->union_station_gateway_port == (ngx_uint_t) NGX_CONF_UNSET) {
conf->union_station_gateway_port = DEFAULT_UNION_STATION_GATEWAY_PORT;
}
if (conf->union_station_gateway_cert.len == 0) {
conf->union_station_gateway_cert.data = (u_char *) "";
}
if (conf->union_station_proxy_address.len == 0) {
conf->union_station_proxy_address.data = (u_char *) "";
}
return NGX_CONF_OK;
}
void *
passenger_create_loc_conf(ngx_conf_t *cf)
{
passenger_loc_conf_t *conf;
conf = ngx_pcalloc(cf->pool, sizeof(passenger_loc_conf_t));
if (conf == NULL) {
return NGX_CONF_ERROR;
}
/*
* set by ngx_pcalloc():
*
* conf->upstream_config.bufs.num = 0;
* conf->upstream_config.next_upstream = 0;
* conf->upstream_config.temp_path = NULL;
* conf->upstream_config.hide_headers_hash = { NULL, 0 };
* conf->upstream_config.hide_headers = NULL;
* conf->upstream_config.pass_headers = NULL;
* conf->upstream_config.uri = { 0, NULL };
* conf->upstream_config.location = NULL;
* conf->upstream_config.store_lengths = NULL;
* conf->upstream_config.store_values = NULL;
*/
#include "CreateLocationConfig.c"
/******************************/
/******************************/
conf->upstream_config.pass_headers = NGX_CONF_UNSET_PTR;
conf->upstream_config.hide_headers = NGX_CONF_UNSET_PTR;
conf->upstream_config.store = NGX_CONF_UNSET;
conf->upstream_config.store_access = NGX_CONF_UNSET_UINT;
#if NGINX_VERSION_NUM >= 1007005
conf->upstream_config.next_upstream_tries = NGX_CONF_UNSET_UINT;
#endif
conf->upstream_config.buffering = NGX_CONF_UNSET;
conf->upstream_config.ignore_client_abort = NGX_CONF_UNSET;
#if NGINX_VERSION_NUM >= 1007007
conf->upstream_config.force_ranges = NGX_CONF_UNSET;
#endif
conf->upstream_config.local = NGX_CONF_UNSET_PTR;
conf->upstream_config.connect_timeout = NGX_CONF_UNSET_MSEC;
conf->upstream_config.send_timeout = NGX_CONF_UNSET_MSEC;
conf->upstream_config.read_timeout = NGX_CONF_UNSET_MSEC;
#if NGINX_VERSION_NUM >= 1007005
conf->upstream_config.next_upstream_timeout = NGX_CONF_UNSET_MSEC;
#endif
conf->upstream_config.send_lowat = NGX_CONF_UNSET_SIZE;
conf->upstream_config.buffer_size = NGX_CONF_UNSET_SIZE;
#if NGINX_VERSION_NUM >= 1007007
conf->upstream_config.limit_rate = NGX_CONF_UNSET_SIZE;
#endif
conf->upstream_config.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE;
conf->upstream_config.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE;
conf->upstream_config.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE;
conf->upstream_config.pass_request_headers = NGX_CONF_UNSET;
conf->upstream_config.pass_request_body = NGX_CONF_UNSET;
#if (NGX_HTTP_CACHE)
#if NGINX_VERSION_NUM >= 1007009
conf->upstream_config.cache = NGX_CONF_UNSET;
#else
conf->upstream_config.cache = NGX_CONF_UNSET_PTR;
#endif
conf->upstream_config.cache_min_uses = NGX_CONF_UNSET_UINT;
conf->upstream_config.cache_bypass = NGX_CONF_UNSET_PTR;
conf->upstream_config.no_cache = NGX_CONF_UNSET_PTR;
conf->upstream_config.cache_valid = NGX_CONF_UNSET_PTR;
conf->upstream_config.cache_lock = NGX_CONF_UNSET;
conf->upstream_config.cache_lock_timeout = NGX_CONF_UNSET_MSEC;
#if NGINX_VERSION_NUM >= 1007008
conf->upstream_config.cache_lock_age = NGX_CONF_UNSET_MSEC;
#endif
#if NGINX_VERSION_NUM >= 1006000
conf->upstream_config.cache_revalidate = NGX_CONF_UNSET;
#endif
#endif
conf->upstream_config.intercept_errors = NGX_CONF_UNSET;
conf->upstream_config.cyclic_temp_file = 0;
conf->upstream_config.change_buffering = 1;
ngx_str_set(&conf->upstream_config.module, "passenger");
conf->options_cache.data = NULL;
conf->options_cache.len = 0;
conf->env_vars_cache.data = NULL;
conf->env_vars_cache.len = 0;
return conf;
}
static ngx_int_t
cache_loc_conf_options(ngx_conf_t *cf, passenger_loc_conf_t *conf)
{
ngx_uint_t i;
ngx_keyval_t *env_vars;
size_t unencoded_len;
u_char *unencoded_buf;
#include "CacheLocationConfig.c"
if (conf->env_vars != NULL) {
/* Cache env vars data as base64-serialized string.
* First, calculate the length of the unencoded data.
*/
unencoded_len = 0;
env_vars = (ngx_keyval_t *) conf->env_vars->elts;
for (i = 0; i < conf->env_vars->nelts; i++) {
unencoded_len += env_vars[i].key.len + 1 + env_vars[i].value.len + 1;
}
/* Create the unecoded data. */
unencoded_buf = pos = (u_char *) malloc(unencoded_len);
if (unencoded_buf == NULL) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"cannot allocate buffer of %z bytes for environment variables data",
unencoded_len);
return NGX_ERROR;
}
for (i = 0; i < conf->env_vars->nelts; i++) {
pos = ngx_copy(pos, env_vars[i].key.data, env_vars[i].key.len);
*pos = '\0';
pos++;
pos = ngx_copy(pos, env_vars[i].value.data, env_vars[i].value.len);
*pos = '\0';
pos++;
}
assert((size_t) (pos - unencoded_buf) == unencoded_len);
/* Create base64-serialized string. */
buf = ngx_palloc(cf->pool, modp_b64_encode_len(unencoded_len));
if (buf == NULL) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"cannot allocate buffer of %z bytes for base64 encoding",
modp_b64_encode_len(unencoded_len));
return NGX_ERROR;
}
len = modp_b64_encode((char *) buf, (const char *) unencoded_buf, unencoded_len);
if (len == (size_t) -1) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"error during base64 encoding");
free(unencoded_buf);
return NGX_ERROR;
}
conf->env_vars_cache.data = buf;
conf->env_vars_cache.len = len;
free(unencoded_buf);
}
return NGX_OK;
}
char *
passenger_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
{
passenger_loc_conf_t *prev = parent;
passenger_loc_conf_t *conf = child;
ngx_http_core_loc_conf_t *clcf;
size_t size;
ngx_hash_init_t hash;
clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
#include "MergeLocationConfig.c"
if (prev->options_cache.data == NULL) {
if (cache_loc_conf_options(cf, prev) != NGX_OK) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"cannot create " PROGRAM_NAME " configuration cache");
return NGX_CONF_ERROR;
}
}
/******************************/
/******************************/
#if (NGX_HTTP_CACHE) && NGINX_VERSION_NUM >= 1007009
if (conf->upstream_config.store > 0) {
conf->upstream_config.cache = 0;
}
if (conf->upstream_config.cache > 0) {
conf->upstream_config.store = 0;
}
#endif
#if NGINX_VERSION_NUM >= 1007009
if (conf->upstream_config.store == NGX_CONF_UNSET) {
ngx_conf_merge_value(conf->upstream_config.store,
prev->upstream_config.store, 0);
conf->upstream_config.store_lengths = prev->upstream_config.store_lengths;
conf->upstream_config.store_values = prev->upstream_config.store_values;
}
#else
if (conf->upstream_config.store != 0) {
ngx_conf_merge_value(conf->upstream_config.store,
prev->upstream_config.store, 0);
if (conf->upstream_config.store_lengths == NULL) {
conf->upstream_config.store_lengths = prev->upstream_config.store_lengths;
conf->upstream_config.store_values = prev->upstream_config.store_values;
}
}
#endif
ngx_conf_merge_uint_value(conf->upstream_config.store_access,
prev->upstream_config.store_access, 0600);
#if NGINX_VERSION_NUM >= 1007005
ngx_conf_merge_uint_value(conf->upstream_config.next_upstream_tries,
prev->upstream_config.next_upstream_tries, 0);
#endif
ngx_conf_merge_value(conf->upstream_config.buffering,
prev->upstream_config.buffering, 0);
ngx_conf_merge_value(conf->upstream_config.ignore_client_abort,
prev->upstream_config.ignore_client_abort, 0);
#if NGINX_VERSION_NUM >= 1007007
ngx_conf_merge_value(conf->upstream_config.force_ranges,
prev->upstream_config.force_ranges, 0);
#endif
ngx_conf_merge_ptr_value(conf->upstream_config.local,
prev->upstream_config.local, NULL);
ngx_conf_merge_msec_value(conf->upstream_config.connect_timeout,
prev->upstream_config.connect_timeout, 12000000);
ngx_conf_merge_msec_value(conf->upstream_config.send_timeout,
prev->upstream_config.send_timeout, 12000000);
ngx_conf_merge_msec_value(conf->upstream_config.read_timeout,
prev->upstream_config.read_timeout, 12000000);
#if NGINX_VERSION_NUM >= 1007005
ngx_conf_merge_msec_value(conf->upstream_config.next_upstream_timeout,
prev->upstream_config.next_upstream_timeout, 0);
#endif
ngx_conf_merge_size_value(conf->upstream_config.send_lowat,
prev->upstream_config.send_lowat, 0);
ngx_conf_merge_size_value(conf->upstream_config.buffer_size,
prev->upstream_config.buffer_size,
16 * 1024);
#if NGINX_VERSION_NUM >= 1007007
ngx_conf_merge_size_value(conf->upstream_config.limit_rate,
prev->upstream_config.limit_rate, 0);
#endif
ngx_conf_merge_bufs_value(conf->upstream_config.bufs, prev->upstream_config.bufs,
8, 16 * 1024);
if (conf->upstream_config.bufs.num < 2) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"there must be at least 2 \"passenger_buffers\"");
return NGX_CONF_ERROR;
}
size = conf->upstream_config.buffer_size;
if (size < conf->upstream_config.bufs.size) {
size = conf->upstream_config.bufs.size;
}
ngx_conf_merge_size_value(conf->upstream_config.busy_buffers_size_conf,
prev->upstream_config.busy_buffers_size_conf,
NGX_CONF_UNSET_SIZE);
if (conf->upstream_config.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) {
conf->upstream_config.busy_buffers_size = 2 * size;
} else {
conf->upstream_config.busy_buffers_size =
conf->upstream_config.busy_buffers_size_conf;
}
if (conf->upstream_config.busy_buffers_size < size) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"passenger_busy_buffers_size\" must be equal to or greater "
"than the maximum of the value of \"passenger_buffer_size\" and "
"one of the \"passenger_buffers\"");
return NGX_CONF_ERROR;
}
if (conf->upstream_config.busy_buffers_size
> (conf->upstream_config.bufs.num - 1) * conf->upstream_config.bufs.size)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"passenger_busy_buffers_size\" must be less than "
"the size of all \"passenger_buffers\" minus one buffer");
return NGX_CONF_ERROR;
}
ngx_conf_merge_size_value(conf->upstream_config.temp_file_write_size_conf,
prev->upstream_config.temp_file_write_size_conf,
NGX_CONF_UNSET_SIZE);
if (conf->upstream_config.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) {
conf->upstream_config.temp_file_write_size = 2 * size;
} else {
conf->upstream_config.temp_file_write_size =
conf->upstream_config.temp_file_write_size_conf;
}
if (conf->upstream_config.temp_file_write_size < size) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"passenger_temp_file_write_size\" must be equal to or greater than "
"the maximum of the value of \"passenger_buffer_size\" and "
"one of the \"passenger_buffers\"");
return NGX_CONF_ERROR;
}
ngx_conf_merge_size_value(conf->upstream_config.max_temp_file_size_conf,
prev->upstream_config.max_temp_file_size_conf,
NGX_CONF_UNSET_SIZE);
if (conf->upstream_config.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) {
conf->upstream_config.max_temp_file_size = 1024 * 1024 * 1024;
} else {
conf->upstream_config.max_temp_file_size =
conf->upstream_config.max_temp_file_size_conf;
}
if (conf->upstream_config.max_temp_file_size != 0
&& conf->upstream_config.max_temp_file_size < size)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"passenger_max_temp_file_size\" must be equal to zero to disable "
"temporary files usage or must be equal to or greater than "
"the maximum of the value of \"passenger_buffer_size\" and "
"one of the \"passenger_buffers\"");
return NGX_CONF_ERROR;
}
ngx_conf_merge_bitmask_value(conf->upstream_config.ignore_headers,
prev->upstream_config.ignore_headers,
NGX_CONF_BITMASK_SET);
ngx_conf_merge_bitmask_value(conf->upstream_config.next_upstream,
prev->upstream_config.next_upstream,
(NGX_CONF_BITMASK_SET
|NGX_HTTP_UPSTREAM_FT_ERROR
|NGX_HTTP_UPSTREAM_FT_TIMEOUT));
if (conf->upstream_config.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) {
conf->upstream_config.next_upstream = NGX_CONF_BITMASK_SET
|NGX_HTTP_UPSTREAM_FT_OFF;
}
ngx_conf_merge_path_value(cf,
&conf->upstream_config.temp_path,
prev->upstream_config.temp_path,
&ngx_http_proxy_temp_path);
#if (NGX_HTTP_CACHE)
#if NGINX_VERSION_NUM >= 1007009
if (conf->upstream_config.cache == NGX_CONF_UNSET) {
ngx_conf_merge_value(conf->upstream_config.cache,
prev->upstream_config.cache, 0);
conf->upstream_config.cache_zone = prev->upstream_config.cache_zone;
conf->upstream_config.cache_value = prev->upstream_config.cache_value;
}
if (conf->upstream_config.cache_zone && conf->upstream_config.cache_zone->data == NULL) {
ngx_shm_zone_t *shm_zone;
shm_zone = conf->upstream_config.cache_zone;
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"scgi_cache\" zone \"%V\" is unknown",
&shm_zone->shm.name);
return NGX_CONF_ERROR;
}
#else
ngx_conf_merge_ptr_value(conf->upstream_config.cache,
prev->upstream_config.cache, NULL);
if (conf->upstream_config.cache && conf->upstream_config.cache->data == NULL) {
ngx_shm_zone_t *shm_zone;
shm_zone = conf->upstream_config.cache;
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"scgi_cache\" zone \"%V\" is unknown",
&shm_zone->shm.name);
return NGX_CONF_ERROR;
}
#endif
ngx_conf_merge_uint_value(conf->upstream_config.cache_min_uses,
prev->upstream_config.cache_min_uses, 1);
ngx_conf_merge_bitmask_value(conf->upstream_config.cache_use_stale,
prev->upstream_config.cache_use_stale,
(NGX_CONF_BITMASK_SET
| NGX_HTTP_UPSTREAM_FT_OFF));
if (conf->upstream_config.cache_use_stale & NGX_HTTP_UPSTREAM_FT_OFF) {
conf->upstream_config.cache_use_stale = NGX_CONF_BITMASK_SET
| NGX_HTTP_UPSTREAM_FT_OFF;
}
if (conf->upstream_config.cache_use_stale & NGX_HTTP_UPSTREAM_FT_ERROR) {
conf->upstream_config.cache_use_stale |= NGX_HTTP_UPSTREAM_FT_NOLIVE;
}
if (conf->upstream_config.cache_methods == 0) {
conf->upstream_config.cache_methods = prev->upstream_config.cache_methods;
}
conf->upstream_config.cache_methods |= NGX_HTTP_GET | NGX_HTTP_HEAD;
ngx_conf_merge_ptr_value(conf->upstream_config.cache_bypass,
prev->upstream_config.cache_bypass, NULL);
ngx_conf_merge_ptr_value(conf->upstream_config.no_cache,
prev->upstream_config.no_cache, NULL);
ngx_conf_merge_ptr_value(conf->upstream_config.cache_valid,
prev->upstream_config.cache_valid, NULL);
if (conf->cache_key.value.data == NULL) {
conf->cache_key = prev->cache_key;
}
ngx_conf_merge_value(conf->upstream_config.cache_lock,
prev->upstream_config.cache_lock, 0);
ngx_conf_merge_msec_value(conf->upstream_config.cache_lock_timeout,
prev->upstream_config.cache_lock_timeout, 5000);
ngx_conf_merge_value(conf->upstream_config.cache_revalidate,
prev->upstream_config.cache_revalidate, 0);
#if NGINX_VERSION_NUM >= 1007008
ngx_conf_merge_msec_value(conf->upstream_config.cache_lock_age,
prev->upstream_config.cache_lock_age, 5000);
#endif
#if NGINX_VERSION_NUM >= 1006000
ngx_conf_merge_value(conf->upstream_config.cache_revalidate,
prev->upstream_config.cache_revalidate, 0);
#endif
#endif
ngx_conf_merge_value(conf->upstream_config.pass_request_headers,
prev->upstream_config.pass_request_headers, 1);
ngx_conf_merge_value(conf->upstream_config.pass_request_body,
prev->upstream_config.pass_request_body, 1);
ngx_conf_merge_value(conf->upstream_config.intercept_errors,
prev->upstream_config.intercept_errors, 0);
hash.max_size = 512;
hash.bucket_size = ngx_align(64, ngx_cacheline_size);
hash.name = "passenger_hide_headers_hash";
if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream_config,
&prev->upstream_config, headers_to_hide, &hash)
!= NGX_OK)
{
return NGX_CONF_ERROR;
}
if (conf->upstream_config.upstream == NULL) {
conf->upstream_config.upstream = prev->upstream_config.upstream;
}
if (conf->enabled == 1 /* and not NGX_CONF_UNSET */
&& passenger_main_conf.root_dir.len != 0
&& clcf->handler == NULL /* no handler set by other modules */)
{
clcf->handler = passenger_content_handler;
}
conf->headers_hash_bucket_size = ngx_align(conf->headers_hash_bucket_size,
ngx_cacheline_size);
hash.max_size = conf->headers_hash_max_size;
hash.bucket_size = conf->headers_hash_bucket_size;
hash.name = "passenger_headers_hash";
if (merge_headers(cf, conf, prev) != NGX_OK) {
return NGX_CONF_ERROR;
}
if (cache_loc_conf_options(cf, conf) != NGX_OK) {
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"cannot create " PROGRAM_NAME " configuration cache");
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
}
static ngx_int_t
merge_headers(ngx_conf_t *cf, passenger_loc_conf_t *conf, passenger_loc_conf_t *prev)
{
u_char *p;
size_t size;
uintptr_t *code;
ngx_uint_t i;
ngx_array_t headers_names, headers_merged;
ngx_keyval_t *src, *s;
ngx_hash_key_t *hk;
ngx_hash_init_t hash;
ngx_http_script_compile_t sc;
ngx_http_script_copy_code_t *copy;
if (conf->headers_source == NULL) {
conf->flushes = prev->flushes;
conf->headers_set_len = prev->headers_set_len;
conf->headers_set = prev->headers_set;
conf->headers_set_hash = prev->headers_set_hash;
conf->headers_source = prev->headers_source;
}
if (conf->headers_set_hash.buckets
#if (NGX_HTTP_CACHE)
#if NGINX_VERSION_NUM >= 1007009
&& ((conf->upstream_config.cache == NGX_CONF_UNSET) == (prev->upstream_config.cache == NGX_CONF_UNSET))
#else
&& ((conf->upstream_config.cache == NGX_CONF_UNSET_PTR) == (prev->upstream_config.cache == NGX_CONF_UNSET_PTR))
#endif
#endif
)
{
return NGX_OK;
}
if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t))
!= NGX_OK)
{
return NGX_ERROR;
}
if (ngx_array_init(&headers_merged, cf->temp_pool, 4, sizeof(ngx_keyval_t))
!= NGX_OK)
{
return NGX_ERROR;
}
if (conf->headers_source == NULL) {
conf->headers_source = ngx_array_create(cf->pool, 4,
sizeof(ngx_keyval_t));
if (conf->headers_source == NULL) {
return NGX_ERROR;
}
}
conf->headers_set_len = ngx_array_create(cf->pool, 64, 1);
if (conf->headers_set_len == NULL) {
return NGX_ERROR;
}
conf->headers_set = ngx_array_create(cf->pool, 512, 1);
if (conf->headers_set == NULL) {
return NGX_ERROR;
}
src = conf->headers_source->elts;
for (i = 0; i < conf->headers_source->nelts; i++) {
s = ngx_array_push(&headers_merged);
if (s == NULL) {
return NGX_ERROR;
}
*s = src[i];
}
src = headers_merged.elts;
for (i = 0; i < headers_merged.nelts; i++) {
hk = ngx_array_push(&headers_names);
if (hk == NULL) {
return NGX_ERROR;
}
hk->key = src[i].key;
hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len);
hk->value = (void *) 1;
if (src[i].value.len == 0) {
continue;
}
if (ngx_http_script_variables_count(&src[i].value) == 0) {
copy = ngx_array_push_n(conf->headers_set_len,
sizeof(ngx_http_script_copy_code_t));
if (copy == NULL) {
return NGX_ERROR;
}
copy->code = (ngx_http_script_code_pt)
ngx_http_script_copy_len_code;
copy->len = src[i].key.len + sizeof(": ") - 1
+ src[i].value.len + sizeof(CRLF) - 1;
size = (sizeof(ngx_http_script_copy_code_t)
+ src[i].key.len + sizeof(": ") - 1
+ src[i].value.len + sizeof(CRLF) - 1
+ sizeof(uintptr_t) - 1)
& ~(sizeof(uintptr_t) - 1);
copy = ngx_array_push_n(conf->headers_set, size);
if (copy == NULL) {
return NGX_ERROR;
}
copy->code = ngx_http_script_copy_code;
copy->len = src[i].key.len + sizeof(": ") - 1
+ src[i].value.len + sizeof(CRLF) - 1;
p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
*p++ = ':'; *p++ = ' ';
p = ngx_cpymem(p, src[i].value.data, src[i].value.len);
*p++ = CR; *p = LF;
} else {
copy = ngx_array_push_n(conf->headers_set_len,
sizeof(ngx_http_script_copy_code_t));
if (copy == NULL) {
return NGX_ERROR;
}
copy->code = (ngx_http_script_code_pt)
ngx_http_script_copy_len_code;
copy->len = src[i].key.len + sizeof(": ") - 1;
size = (sizeof(ngx_http_script_copy_code_t)
+ src[i].key.len + sizeof(": ") - 1 + sizeof(uintptr_t) - 1)
& ~(sizeof(uintptr_t) - 1);
copy = ngx_array_push_n(conf->headers_set, size);
if (copy == NULL) {
return NGX_ERROR;
}
copy->code = ngx_http_script_copy_code;
copy->len = src[i].key.len + sizeof(": ") - 1;
p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
*p++ = ':'; *p = ' ';
ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
sc.cf = cf;
sc.source = &src[i].value;
sc.flushes = &conf->flushes;
sc.lengths = &conf->headers_set_len;
sc.values = &conf->headers_set;
if (ngx_http_script_compile(&sc) != NGX_OK) {
return NGX_ERROR;
}
copy = ngx_array_push_n(conf->headers_set_len,
sizeof(ngx_http_script_copy_code_t));
if (copy == NULL) {
return NGX_ERROR;
}
copy->code = (ngx_http_script_code_pt)
ngx_http_script_copy_len_code;
copy->len = sizeof(CRLF) - 1;
size = (sizeof(ngx_http_script_copy_code_t)
+ sizeof(CRLF) - 1 + sizeof(uintptr_t) - 1)
& ~(sizeof(uintptr_t) - 1);
copy = ngx_array_push_n(conf->headers_set, size);
if (copy == NULL) {
return NGX_ERROR;
}
copy->code = ngx_http_script_copy_code;
copy->len = sizeof(CRLF) - 1;
p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
*p++ = CR; *p = LF;
}
code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
if (code == NULL) {
return NGX_ERROR;
}
*code = (uintptr_t) NULL;
code = ngx_array_push_n(conf->headers_set, sizeof(uintptr_t));
if (code == NULL) {
return NGX_ERROR;
}
*code = (uintptr_t) NULL;
}
code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
if (code == NULL) {
return NGX_ERROR;
}
*code = (uintptr_t) NULL;
hash.hash = &conf->headers_set_hash;
hash.key = ngx_hash_key_lc;
hash.max_size = conf->headers_hash_max_size;
hash.bucket_size = conf->headers_hash_bucket_size;
hash.name = "passenger_headers_hash";