Mercurial > hg > nginx-vendor-current
view src/http/modules/ngx_http_fastcgi_module.c @ 660:d0f7a625f27c NGINX_1_1_14
nginx 1.1.14
*) Feature: multiple "limit_req" limits may be used simultaneously.
*) Bugfix: in error handling while connecting to a backend.
Thanks to Piotr Sikora.
*) Bugfix: in AIO error handling on FreeBSD.
*) Bugfix: in the OpenSSL library initialization.
*) Bugfix: the "proxy_redirect" directives might not be correctly
inherited.
*) Bugfix: memory leak during reconfiguration if the "pcre_jit"
directive was used.
| author | Igor Sysoev <http://sysoev.ru> |
|---|---|
| date | Mon, 30 Jan 2012 00:00:00 +0400 |
| parents | 5a4401b9551b |
| children | bf8b55a5ac89 |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> typedef struct { ngx_http_upstream_conf_t upstream; ngx_str_t index; ngx_array_t *flushes; ngx_array_t *params_len; ngx_array_t *params; ngx_array_t *params_source; ngx_array_t *catch_stderr; ngx_array_t *fastcgi_lengths; ngx_array_t *fastcgi_values; ngx_hash_t headers_hash; ngx_uint_t header_params; ngx_flag_t keep_conn; #if (NGX_HTTP_CACHE) ngx_http_complex_value_t cache_key; #endif #if (NGX_PCRE) ngx_regex_t *split_regex; ngx_str_t split_name; #endif } ngx_http_fastcgi_loc_conf_t; typedef enum { ngx_http_fastcgi_st_version = 0, ngx_http_fastcgi_st_type, ngx_http_fastcgi_st_request_id_hi, ngx_http_fastcgi_st_request_id_lo, ngx_http_fastcgi_st_content_length_hi, ngx_http_fastcgi_st_content_length_lo, ngx_http_fastcgi_st_padding_length, ngx_http_fastcgi_st_reserved, ngx_http_fastcgi_st_data, ngx_http_fastcgi_st_padding } ngx_http_fastcgi_state_e; typedef struct { u_char *start; u_char *end; } ngx_http_fastcgi_split_part_t; typedef struct { ngx_http_fastcgi_state_e state; u_char *pos; u_char *last; ngx_uint_t type; size_t length; size_t padding; unsigned fastcgi_stdout:1; unsigned large_stderr:1; ngx_array_t *split_parts; ngx_str_t script_name; ngx_str_t path_info; } ngx_http_fastcgi_ctx_t; #define NGX_HTTP_FASTCGI_RESPONDER 1 #define NGX_HTTP_FASTCGI_KEEP_CONN 1 #define NGX_HTTP_FASTCGI_BEGIN_REQUEST 1 #define NGX_HTTP_FASTCGI_ABORT_REQUEST 2 #define NGX_HTTP_FASTCGI_END_REQUEST 3 #define NGX_HTTP_FASTCGI_PARAMS 4 #define NGX_HTTP_FASTCGI_STDIN 5 #define NGX_HTTP_FASTCGI_STDOUT 6 #define NGX_HTTP_FASTCGI_STDERR 7 #define NGX_HTTP_FASTCGI_DATA 8 typedef struct { u_char version; u_char type; u_char request_id_hi; u_char request_id_lo; u_char content_length_hi; u_char content_length_lo; u_char padding_length; u_char reserved; } ngx_http_fastcgi_header_t; typedef struct { u_char role_hi; u_char role_lo; u_char flags; u_char reserved[5]; } ngx_http_fastcgi_begin_request_t; typedef struct { u_char version; u_char type; u_char request_id_hi; u_char request_id_lo; } ngx_http_fastcgi_header_small_t; typedef struct { ngx_http_fastcgi_header_t h0; ngx_http_fastcgi_begin_request_t br; ngx_http_fastcgi_header_small_t h1; } ngx_http_fastcgi_request_start_t; static ngx_int_t ngx_http_fastcgi_eval(ngx_http_request_t *r, ngx_http_fastcgi_loc_conf_t *flcf); #if (NGX_HTTP_CACHE) static ngx_int_t ngx_http_fastcgi_create_key(ngx_http_request_t *r); #endif static ngx_int_t ngx_http_fastcgi_create_request(ngx_http_request_t *r); static ngx_int_t ngx_http_fastcgi_reinit_request(ngx_http_request_t *r); static ngx_int_t ngx_http_fastcgi_process_header(ngx_http_request_t *r); static ngx_int_t ngx_http_fastcgi_input_filter_init(void *data); static ngx_int_t ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf); static ngx_int_t ngx_http_fastcgi_process_record(ngx_http_request_t *r, ngx_http_fastcgi_ctx_t *f); static void ngx_http_fastcgi_abort_request(ngx_http_request_t *r); static void ngx_http_fastcgi_finalize_request(ngx_http_request_t *r, ngx_int_t rc); static ngx_int_t ngx_http_fastcgi_add_variables(ngx_conf_t *cf); static void *ngx_http_fastcgi_create_loc_conf(ngx_conf_t *cf); static char *ngx_http_fastcgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child); static ngx_int_t ngx_http_fastcgi_merge_params(ngx_conf_t *cf, ngx_http_fastcgi_loc_conf_t *conf, ngx_http_fastcgi_loc_conf_t *prev); static ngx_int_t ngx_http_fastcgi_script_name_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_fastcgi_path_info_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_http_fastcgi_ctx_t *ngx_http_fastcgi_split(ngx_http_request_t *r, ngx_http_fastcgi_loc_conf_t *flcf); static char *ngx_http_fastcgi_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_fastcgi_split_path_info(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_fastcgi_store(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); #if (NGX_HTTP_CACHE) static char *ngx_http_fastcgi_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static char *ngx_http_fastcgi_cache_key(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); #endif static char *ngx_http_fastcgi_lowat_check(ngx_conf_t *cf, void *post, void *data); static ngx_conf_post_t ngx_http_fastcgi_lowat_post = { ngx_http_fastcgi_lowat_check }; static ngx_conf_bitmask_t ngx_http_fastcgi_next_upstream_masks[] = { { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, { ngx_string("updating"), NGX_HTTP_UPSTREAM_FT_UPDATING }, { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, { ngx_null_string, 0 } }; ngx_module_t ngx_http_fastcgi_module; static ngx_command_t ngx_http_fastcgi_commands[] = { { ngx_string("fastcgi_pass"), NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, ngx_http_fastcgi_pass, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("fastcgi_index"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, index), NULL }, { ngx_string("fastcgi_split_path_info"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_http_fastcgi_split_path_info, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("fastcgi_store"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_http_fastcgi_store, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("fastcgi_store_access"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE123, ngx_conf_set_access_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.store_access), NULL }, { ngx_string("fastcgi_ignore_client_abort"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.ignore_client_abort), NULL }, { ngx_string("fastcgi_bind"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_http_upstream_bind_set_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.local), NULL }, { ngx_string("fastcgi_connect_timeout"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.connect_timeout), NULL }, { ngx_string("fastcgi_send_timeout"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.send_timeout), NULL }, { ngx_string("fastcgi_send_lowat"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.send_lowat), &ngx_http_fastcgi_lowat_post }, { ngx_string("fastcgi_buffer_size"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.buffer_size), NULL }, { ngx_string("fastcgi_pass_request_headers"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.pass_request_headers), NULL }, { ngx_string("fastcgi_pass_request_body"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.pass_request_body), NULL }, { ngx_string("fastcgi_intercept_errors"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.intercept_errors), NULL }, { ngx_string("fastcgi_read_timeout"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.read_timeout), NULL }, { ngx_string("fastcgi_buffers"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, ngx_conf_set_bufs_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.bufs), NULL }, { ngx_string("fastcgi_busy_buffers_size"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.busy_buffers_size_conf), NULL }, #if (NGX_HTTP_CACHE) { ngx_string("fastcgi_cache"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_http_fastcgi_cache, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("fastcgi_cache_key"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_http_fastcgi_cache_key, NGX_HTTP_LOC_CONF_OFFSET, 0, NULL }, { ngx_string("fastcgi_cache_path"), NGX_HTTP_MAIN_CONF|NGX_CONF_2MORE, ngx_http_file_cache_set_slot, 0, 0, &ngx_http_fastcgi_module }, { ngx_string("fastcgi_cache_bypass"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, ngx_http_set_predicate_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_bypass), NULL }, { ngx_string("fastcgi_no_cache"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, ngx_http_set_predicate_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.no_cache), NULL }, { ngx_string("fastcgi_cache_valid"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, ngx_http_file_cache_valid_set_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_valid), NULL }, { ngx_string("fastcgi_cache_min_uses"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_min_uses), NULL }, { ngx_string("fastcgi_cache_use_stale"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, ngx_conf_set_bitmask_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_use_stale), &ngx_http_fastcgi_next_upstream_masks }, { ngx_string("fastcgi_cache_methods"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, ngx_conf_set_bitmask_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_methods), &ngx_http_upstream_cache_method_mask }, { ngx_string("fastcgi_cache_lock"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_lock), NULL }, { ngx_string("fastcgi_cache_lock_timeout"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_msec_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.cache_lock_timeout), NULL }, #endif { ngx_string("fastcgi_temp_path"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234, ngx_conf_set_path_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.temp_path), NULL }, { ngx_string("fastcgi_max_temp_file_size"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.max_temp_file_size_conf), NULL }, { ngx_string("fastcgi_temp_file_write_size"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.temp_file_write_size_conf), NULL }, { ngx_string("fastcgi_next_upstream"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, ngx_conf_set_bitmask_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.next_upstream), &ngx_http_fastcgi_next_upstream_masks }, { ngx_string("fastcgi_param"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE23, ngx_http_upstream_param_set_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, params_source), NULL }, { ngx_string("fastcgi_pass_header"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_array_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.pass_headers), NULL }, { ngx_string("fastcgi_hide_header"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_array_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.hide_headers), NULL }, { ngx_string("fastcgi_ignore_headers"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, ngx_conf_set_bitmask_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, upstream.ignore_headers), &ngx_http_upstream_ignore_headers_masks }, { ngx_string("fastcgi_catch_stderr"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, ngx_conf_set_str_array_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, catch_stderr), NULL }, { ngx_string("fastcgi_keep_conn"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, ngx_conf_set_flag_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_fastcgi_loc_conf_t, keep_conn), NULL }, ngx_null_command }; static ngx_http_module_t ngx_http_fastcgi_module_ctx = { ngx_http_fastcgi_add_variables, /* preconfiguration */ NULL, /* postconfiguration */ NULL, /* create main configuration */ NULL, /* init main configuration */ NULL, /* create server configuration */ NULL, /* merge server configuration */ ngx_http_fastcgi_create_loc_conf, /* create location configuration */ ngx_http_fastcgi_merge_loc_conf /* merge location configuration */ }; ngx_module_t ngx_http_fastcgi_module = { NGX_MODULE_V1, &ngx_http_fastcgi_module_ctx, /* module context */ ngx_http_fastcgi_commands, /* module directives */ NGX_HTTP_MODULE, /* module type */ NULL, /* init master */ NULL, /* init module */ NULL, /* init process */ NULL, /* init thread */ NULL, /* exit thread */ NULL, /* exit process */ NULL, /* exit master */ NGX_MODULE_V1_PADDING }; static ngx_http_fastcgi_request_start_t ngx_http_fastcgi_request_start = { { 1, /* version */ NGX_HTTP_FASTCGI_BEGIN_REQUEST, /* type */ 0, /* request_id_hi */ 1, /* request_id_lo */ 0, /* content_length_hi */ sizeof(ngx_http_fastcgi_begin_request_t), /* content_length_lo */ 0, /* padding_length */ 0 }, /* reserved */ { 0, /* role_hi */ NGX_HTTP_FASTCGI_RESPONDER, /* role_lo */ 0, /* NGX_HTTP_FASTCGI_KEEP_CONN */ /* flags */ { 0, 0, 0, 0, 0 } }, /* reserved[5] */ { 1, /* version */ NGX_HTTP_FASTCGI_PARAMS, /* type */ 0, /* request_id_hi */ 1 }, /* request_id_lo */ }; static ngx_http_variable_t ngx_http_fastcgi_vars[] = { { ngx_string("fastcgi_script_name"), NULL, ngx_http_fastcgi_script_name_variable, 0, NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, { ngx_string("fastcgi_path_info"), NULL, ngx_http_fastcgi_path_info_variable, 0, NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, { ngx_null_string, NULL, NULL, 0, 0, 0 } }; static ngx_str_t ngx_http_fastcgi_hide_headers[] = { ngx_string("Status"), ngx_string("X-Accel-Expires"), ngx_string("X-Accel-Redirect"), ngx_string("X-Accel-Limit-Rate"), ngx_string("X-Accel-Buffering"), ngx_string("X-Accel-Charset"), ngx_null_string }; #if (NGX_HTTP_CACHE) static ngx_keyval_t ngx_http_fastcgi_cache_headers[] = { { ngx_string("HTTP_IF_MODIFIED_SINCE"), ngx_string("") }, { ngx_string("HTTP_IF_UNMODIFIED_SINCE"), ngx_string("") }, { ngx_string("HTTP_IF_NONE_MATCH"), ngx_string("") }, { ngx_string("HTTP_IF_MATCH"), ngx_string("") }, { ngx_string("HTTP_RANGE"), ngx_string("") }, { ngx_string("HTTP_IF_RANGE"), ngx_string("") }, { ngx_null_string, ngx_null_string } }; #endif static ngx_path_init_t ngx_http_fastcgi_temp_path = { ngx_string(NGX_HTTP_FASTCGI_TEMP_PATH), { 1, 2, 0 } }; static ngx_int_t ngx_http_fastcgi_handler(ngx_http_request_t *r) { ngx_int_t rc; ngx_http_upstream_t *u; ngx_http_fastcgi_ctx_t *f; ngx_http_fastcgi_loc_conf_t *flcf; if (r->subrequest_in_memory) { ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, "ngx_http_fastcgi_module does not support " "subrequest in memory"); return NGX_HTTP_INTERNAL_SERVER_ERROR; } if (ngx_http_upstream_create(r) != NGX_OK) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } f = ngx_pcalloc(r->pool, sizeof(ngx_http_fastcgi_ctx_t)); if (f == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } ngx_http_set_ctx(r, f, ngx_http_fastcgi_module); flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module); if (flcf->fastcgi_lengths) { if (ngx_http_fastcgi_eval(r, flcf) != NGX_OK) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } } u = r->upstream; ngx_str_set(&u->schema, "fastcgi://"); u->output.tag = (ngx_buf_tag_t) &ngx_http_fastcgi_module; u->conf = &flcf->upstream; #if (NGX_HTTP_CACHE) u->create_key = ngx_http_fastcgi_create_key; #endif u->create_request = ngx_http_fastcgi_create_request; u->reinit_request = ngx_http_fastcgi_reinit_request; u->process_header = ngx_http_fastcgi_process_header; u->abort_request = ngx_http_fastcgi_abort_request; u->finalize_request = ngx_http_fastcgi_finalize_request; u->buffering = 1; u->pipe = ngx_pcalloc(r->pool, sizeof(ngx_event_pipe_t)); if (u->pipe == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } u->pipe->input_filter = ngx_http_fastcgi_input_filter; u->pipe->input_ctx = r; u->input_filter_init = ngx_http_fastcgi_input_filter_init; rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { return rc; } return NGX_DONE; } static ngx_int_t ngx_http_fastcgi_eval(ngx_http_request_t *r, ngx_http_fastcgi_loc_conf_t *flcf) { ngx_url_t url; ngx_http_upstream_t *u; ngx_memzero(&url, sizeof(ngx_url_t)); if (ngx_http_script_run(r, &url.url, flcf->fastcgi_lengths->elts, 0, flcf->fastcgi_values->elts) == NULL) { return NGX_ERROR; } url.no_resolve = 1; if (ngx_parse_url(r->pool, &url) != NGX_OK) { if (url.err) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "%s in upstream \"%V\"", url.err, &url.url); } return NGX_ERROR; } u = r->upstream; u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t)); if (u->resolved == NULL) { return NGX_ERROR; } if (url.addrs && url.addrs[0].sockaddr) { u->resolved->sockaddr = url.addrs[0].sockaddr; u->resolved->socklen = url.addrs[0].socklen; u->resolved->naddrs = 1; u->resolved->host = url.addrs[0].name; } else { u->resolved->host = url.host; u->resolved->port = url.port; u->resolved->no_port = url.no_port; } return NGX_OK; } #if (NGX_HTTP_CACHE) static ngx_int_t ngx_http_fastcgi_create_key(ngx_http_request_t *r) { ngx_str_t *key; ngx_http_fastcgi_loc_conf_t *flcf; key = ngx_array_push(&r->cache->keys); if (key == NULL) { return NGX_ERROR; } flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module); if (ngx_http_complex_value(r, &flcf->cache_key, key) != NGX_OK) { return NGX_ERROR; } return NGX_OK; } #endif static ngx_int_t ngx_http_fastcgi_create_request(ngx_http_request_t *r) { off_t file_pos; u_char ch, *pos, *lowcase_key; size_t size, len, key_len, val_len, padding, allocated; ngx_uint_t i, n, next, hash, skip_empty, header_params; ngx_buf_t *b; ngx_chain_t *cl, *body; ngx_list_part_t *part; ngx_table_elt_t *header, **ignored; ngx_http_script_code_pt code; ngx_http_script_engine_t e, le; ngx_http_fastcgi_header_t *h; ngx_http_fastcgi_loc_conf_t *flcf; ngx_http_script_len_code_pt lcode; len = 0; header_params = 0; ignored = NULL; flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module); if (flcf->params_len) { ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); ngx_http_script_flush_no_cacheable_variables(r, flcf->flushes); le.flushed = 1; le.ip = flcf->params_len->elts; le.request = r; while (*(uintptr_t *) le.ip) { lcode = *(ngx_http_script_len_code_pt *) le.ip; key_len = lcode(&le); lcode = *(ngx_http_script_len_code_pt *) le.ip; skip_empty = lcode(&le); for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { lcode = *(ngx_http_script_len_code_pt *) le.ip; } le.ip += sizeof(uintptr_t); if (skip_empty && val_len == 0) { continue; } len += 1 + key_len + ((val_len > 127) ? 4 : 1) + val_len; } } if (flcf->upstream.pass_request_headers) { allocated = 0; lowcase_key = NULL; if (flcf->header_params) { n = 0; part = &r->headers_in.headers.part; while (part) { n += part->nelts; part = part->next; } ignored = ngx_palloc(r->pool, n * sizeof(void *)); if (ignored == NULL) { return NGX_ERROR; } } part = &r->headers_in.headers.part; header = part->elts; for (i = 0; /* void */; i++) { if (i >= part->nelts) { if (part->next == NULL) { break; } part = part->next; header = part->elts; i = 0; } if (flcf->header_params) { if (allocated < header[i].key.len) { allocated = header[i].key.len + 16; lowcase_key = ngx_pnalloc(r->pool, allocated); if (lowcase_key == NULL) { return NGX_ERROR; } } hash = 0; for (n = 0; n < header[i].key.len; n++) { ch = header[i].key.data[n]; if (ch >= 'A' && ch <= 'Z') { ch |= 0x20; } else if (ch == '-') { ch = '_'; } hash = ngx_hash(hash, ch); lowcase_key[n] = ch; } if (ngx_hash_find(&flcf->headers_hash, hash, lowcase_key, n)) { ignored[header_params++] = &header[i]; continue; } n += sizeof("HTTP_") - 1; } else { n = sizeof("HTTP_") - 1 + header[i].key.len; } len += ((n > 127) ? 4 : 1) + ((header[i].value.len > 127) ? 4 : 1) + n + header[i].value.len; } } if (len > 65535) { ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, "fastcgi request record is too big: %uz", len); return NGX_ERROR; } padding = 8 - len % 8; padding = (padding == 8) ? 0 : padding; size = sizeof(ngx_http_fastcgi_header_t) + sizeof(ngx_http_fastcgi_begin_request_t) + sizeof(ngx_http_fastcgi_header_t) /* NGX_HTTP_FASTCGI_PARAMS */ + len + padding + sizeof(ngx_http_fastcgi_header_t) /* NGX_HTTP_FASTCGI_PARAMS */ + sizeof(ngx_http_fastcgi_header_t); /* NGX_HTTP_FASTCGI_STDIN */ b = ngx_create_temp_buf(r->pool, size); if (b == NULL) { return NGX_ERROR; } cl = ngx_alloc_chain_link(r->pool); if (cl == NULL) { return NGX_ERROR; } cl->buf = b; ngx_http_fastcgi_request_start.br.flags = flcf->keep_conn ? NGX_HTTP_FASTCGI_KEEP_CONN : 0; ngx_memcpy(b->pos, &ngx_http_fastcgi_request_start, sizeof(ngx_http_fastcgi_request_start_t)); h = (ngx_http_fastcgi_header_t *) (b->pos + sizeof(ngx_http_fastcgi_header_t) + sizeof(ngx_http_fastcgi_begin_request_t)); h->content_length_hi = (u_char) ((len >> 8) & 0xff); h->content_length_lo = (u_char) (len & 0xff); h->padding_length = (u_char) padding; h->reserved = 0; b->last = b->pos + sizeof(ngx_http_fastcgi_header_t) + sizeof(ngx_http_fastcgi_begin_request_t) + sizeof(ngx_http_fastcgi_header_t); if (flcf->params_len) { ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); e.ip = flcf->params->elts; e.pos = b->last; e.request = r; e.flushed = 1; le.ip = flcf->params_len->elts; while (*(uintptr_t *) le.ip) { lcode = *(ngx_http_script_len_code_pt *) le.ip; key_len = (u_char) lcode(&le); lcode = *(ngx_http_script_len_code_pt *) le.ip; skip_empty = lcode(&le); for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { lcode = *(ngx_http_script_len_code_pt *) le.ip; } le.ip += sizeof(uintptr_t); if (skip_empty && val_len == 0) { e.skip = 1; while (*(uintptr_t *) e.ip) { code = *(ngx_http_script_code_pt *) e.ip; code((ngx_http_script_engine_t *) &e); } e.ip += sizeof(uintptr_t); e.skip = 0; continue; } *e.pos++ = (u_char) key_len; if (val_len > 127) { *e.pos++ = (u_char) (((val_len >> 24) & 0x7f) | 0x80); *e.pos++ = (u_char) ((val_len >> 16) & 0xff); *e.pos++ = (u_char) ((val_len >> 8) & 0xff); *e.pos++ = (u_char) (val_len & 0xff); } else { *e.pos++ = (u_char) val_len; } while (*(uintptr_t *) e.ip) { code = *(ngx_http_script_code_pt *) e.ip; code((ngx_http_script_engine_t *) &e); } e.ip += sizeof(uintptr_t); ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "fastcgi param: \"%*s: %*s\"", key_len, e.pos - (key_len + val_len), val_len, e.pos - val_len); } b->last = e.pos; } if (flcf->upstream.pass_request_headers) { part = &r->headers_in.headers.part; header = part->elts; for (i = 0; /* void */; i++) { if (i >= part->nelts) { if (part->next == NULL) { break; } part = part->next; header = part->elts; i = 0; } for (n = 0; n < header_params; n++) { if (&header[i] == ignored[n]) { goto next; } } key_len = sizeof("HTTP_") - 1 + header[i].key.len; if (key_len > 127) { *b->last++ = (u_char) (((key_len >> 24) & 0x7f) | 0x80); *b->last++ = (u_char) ((key_len >> 16) & 0xff); *b->last++ = (u_char) ((key_len >> 8) & 0xff); *b->last++ = (u_char) (key_len & 0xff); } else { *b->last++ = (u_char) key_len; } val_len = header[i].value.len; if (val_len > 127) { *b->last++ = (u_char) (((val_len >> 24) & 0x7f) | 0x80); *b->last++ = (u_char) ((val_len >> 16) & 0xff); *b->last++ = (u_char) ((val_len >> 8) & 0xff); *b->last++ = (u_char) (val_len & 0xff); } else { *b->last++ = (u_char) val_len; } b->last = ngx_cpymem(b->last, "HTTP_", sizeof("HTTP_") - 1); for (n = 0; n < header[i].key.len; n++) { ch = header[i].key.data[n]; if (ch >= 'a' && ch <= 'z') { ch &= ~0x20; } else if (ch == '-') { ch = '_'; } *b->last++ = ch; } b->last = ngx_copy(b->last, header[i].value.data, val_len); ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "fastcgi param: \"%*s: %*s\"", key_len, b->last - (key_len + val_len), val_len, b->last - val_len); next: continue; } } if (padding) { ngx_memzero(b->last, padding); b->last += padding; } h = (ngx_http_fastcgi_header_t *) b->last; b->last += sizeof(ngx_http_fastcgi_header_t); h->version = 1; h->type = NGX_HTTP_FASTCGI_PARAMS; h->request_id_hi = 0; h->request_id_lo = 1; h->content_length_hi = 0; h->content_length_lo = 0; h->padding_length = 0; h->reserved = 0; h = (ngx_http_fastcgi_header_t *) b->last; b->last += sizeof(ngx_http_fastcgi_header_t); if (flcf->upstream.pass_request_body) { body = r->upstream->request_bufs; r->upstream->request_bufs = cl; #if (NGX_SUPPRESS_WARN) file_pos = 0; pos = NULL; #endif while (body) { if (body->buf->in_file) { file_pos = body->buf->file_pos; } else { pos = body->buf->pos; } next = 0; do { b = ngx_alloc_buf(r->pool); if (b == NULL) { return NGX_ERROR; } ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); if (body->buf->in_file) { b->file_pos = file_pos; file_pos += 32 * 1024; if (file_pos >= body->buf->file_last) { file_pos = body->buf->file_last; next = 1; } b->file_last = file_pos; len = (ngx_uint_t) (file_pos - b->file_pos); } else { b->pos = pos; pos += 32 * 1024; if (pos >= body->buf->last) { pos = body->buf->last; next = 1; } b->last = pos; len = (ngx_uint_t) (pos - b->pos); } padding = 8 - len % 8; padding = (padding == 8) ? 0 : padding; h->version = 1; h->type = NGX_HTTP_FASTCGI_STDIN; h->request_id_hi = 0; h->request_id_lo = 1; h->content_length_hi = (u_char) ((len >> 8) & 0xff); h->content_length_lo = (u_char) (len & 0xff); h->padding_length = (u_char) padding; h->reserved = 0; cl->next = ngx_alloc_chain_link(r->pool); if (cl->next == NULL) { return NGX_ERROR; } cl = cl->next; cl->buf = b; b = ngx_create_temp_buf(r->pool, sizeof(ngx_http_fastcgi_header_t) + padding); if (b == NULL) { return NGX_ERROR; } if (padding) { ngx_memzero(b->last, padding); b->last += padding; } h = (ngx_http_fastcgi_header_t *) b->last; b->last += sizeof(ngx_http_fastcgi_header_t); cl->next = ngx_alloc_chain_link(r->pool); if (cl->next == NULL) { return NGX_ERROR; } cl = cl->next; cl->buf = b; } while (!next); body = body->next; } } else { r->upstream->request_bufs = cl; } h->version = 1; h->type = NGX_HTTP_FASTCGI_STDIN; h->request_id_hi = 0; h->request_id_lo = 1; h->content_length_hi = 0; h->content_length_lo = 0; h->padding_length = 0; h->reserved = 0; cl->next = NULL; return NGX_OK; } static ngx_int_t ngx_http_fastcgi_reinit_request(ngx_http_request_t *r) { ngx_http_fastcgi_ctx_t *f; f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module); if (f == NULL) { return NGX_OK; } f->state = ngx_http_fastcgi_st_version; f->fastcgi_stdout = 0; f->large_stderr = 0; return NGX_OK; } static ngx_int_t ngx_http_fastcgi_process_header(ngx_http_request_t *r) { u_char *p, *msg, *start, *last, *part_start, *part_end; size_t size; ngx_str_t *status_line, *pattern; ngx_int_t rc, status; ngx_buf_t buf; ngx_uint_t i; ngx_table_elt_t *h; ngx_http_upstream_t *u; ngx_http_fastcgi_ctx_t *f; ngx_http_upstream_header_t *hh; ngx_http_fastcgi_loc_conf_t *flcf; ngx_http_fastcgi_split_part_t *part; ngx_http_upstream_main_conf_t *umcf; f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module); umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); u = r->upstream; for ( ;; ) { if (f->state < ngx_http_fastcgi_st_data) { f->pos = u->buffer.pos; f->last = u->buffer.last; rc = ngx_http_fastcgi_process_record(r, f); u->buffer.pos = f->pos; u->buffer.last = f->last; if (rc == NGX_AGAIN) { return NGX_AGAIN; } if (rc == NGX_ERROR) { return NGX_HTTP_UPSTREAM_INVALID_HEADER; } if (f->type != NGX_HTTP_FASTCGI_STDOUT && f->type != NGX_HTTP_FASTCGI_STDERR) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "upstream sent unexpected FastCGI record: %d", f->type); return NGX_HTTP_UPSTREAM_INVALID_HEADER; } if (f->type == NGX_HTTP_FASTCGI_STDOUT && f->length == 0) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "upstream closed prematurely FastCGI stdout"); return NGX_HTTP_UPSTREAM_INVALID_HEADER; } } if (f->state == ngx_http_fastcgi_st_padding) { if (u->buffer.pos + f->padding < u->buffer.last) { f->state = ngx_http_fastcgi_st_version; u->buffer.pos += f->padding; continue; } if (u->buffer.pos + f->padding == u->buffer.last) { f->state = ngx_http_fastcgi_st_version; u->buffer.pos = u->buffer.last; return NGX_AGAIN; } f->padding -= u->buffer.last - u->buffer.pos; u->buffer.pos = u->buffer.last; return NGX_AGAIN; } /* f->state == ngx_http_fastcgi_st_data */ if (f->type == NGX_HTTP_FASTCGI_STDERR) { if (f->length) { msg = u->buffer.pos; if (u->buffer.pos + f->length <= u->buffer.last) { u->buffer.pos += f->length; f->length = 0; f->state = ngx_http_fastcgi_st_padding; } else { f->length -= u->buffer.last - u->buffer.pos; u->buffer.pos = u->buffer.last; } for (p = u->buffer.pos - 1; msg < p; p--) { if (*p != LF && *p != CR && *p != '.' && *p != ' ') { break; } } p++; ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "FastCGI sent in stderr: \"%*s\"", p - msg, msg); flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module); if (flcf->catch_stderr) { pattern = flcf->catch_stderr->elts; for (i = 0; i < flcf->catch_stderr->nelts; i++) { if (ngx_strnstr(msg, (char *) pattern[i].data, p - msg) != NULL) { return NGX_HTTP_UPSTREAM_INVALID_HEADER; } } } if (u->buffer.pos == u->buffer.last) { if (!f->fastcgi_stdout) { /* * the special handling the large number * of the PHP warnings to not allocate memory */ #if (NGX_HTTP_CACHE) if (r->cache) { u->buffer.pos = u->buffer.start + r->cache->header_start; } else { u->buffer.pos = u->buffer.start; } #else u->buffer.pos = u->buffer.start; #endif u->buffer.last = u->buffer.pos; f->large_stderr = 1; } return NGX_AGAIN; } } else { f->state = ngx_http_fastcgi_st_version; } continue; } /* f->type == NGX_HTTP_FASTCGI_STDOUT */ #if (NGX_HTTP_CACHE) if (f->large_stderr && r->cache) { u_char *start; ssize_t len; ngx_http_fastcgi_header_t *fh; start = u->buffer.start + r->cache->header_start; len = u->buffer.pos - start - 2 * sizeof(ngx_http_fastcgi_header_t); /* * A tail of large stderr output before HTTP header is placed * in a cache file without a FastCGI record header. * To workaround it we put a dummy FastCGI record header at the * start of the stderr output or update r->cache_header_start, * if there is no enough place for the record header. */ if (len >= 0) { fh = (ngx_http_fastcgi_header_t *) start; fh->version = 1; fh->type = NGX_HTTP_FASTCGI_STDERR; fh->request_id_hi = 0; fh->request_id_lo = 1; fh->content_length_hi = (u_char) ((len >> 8) & 0xff); fh->content_length_lo = (u_char) (len & 0xff); fh->padding_length = 0; fh->reserved = 0; } else { r->cache->header_start += u->buffer.pos - start - sizeof(ngx_http_fastcgi_header_t); } f->large_stderr = 0; } #endif f->fastcgi_stdout = 1; start = u->buffer.pos; if (u->buffer.pos + f->length < u->buffer.last) { /* * set u->buffer.last to the end of the FastCGI record data * for ngx_http_parse_header_line() */ last = u->buffer.last; u->buffer.last = u->buffer.pos + f->length; } else { last = NULL; } for ( ;; ) { part_start = u->buffer.pos; part_end = u->buffer.last; rc = ngx_http_parse_header_line(r, &u->buffer, 1); ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http fastcgi parser: %d", rc); if (rc == NGX_AGAIN) { break; } if (rc == NGX_OK) { /* a header line has been parsed successfully */ h = ngx_list_push(&u->headers_in.headers); if (h == NULL) { return NGX_ERROR; } if (f->split_parts && f->split_parts->nelts) { part = f->split_parts->elts; size = u->buffer.pos - part_start; for (i = 0; i < f->split_parts->nelts; i++) { size += part[i].end - part[i].start; } p = ngx_pnalloc(r->pool, size); if (p == NULL) { return NGX_ERROR; } buf.pos = p; for (i = 0; i < f->split_parts->nelts; i++) { p = ngx_cpymem(p, part[i].start, part[i].end - part[i].start); } p = ngx_cpymem(p, part_start, u->buffer.pos - part_start); buf.last = p; f->split_parts->nelts = 0; rc = ngx_http_parse_header_line(r, &buf, 1); h->key.len = r->header_name_end - r->header_name_start; h->key.data = r->header_name_start; h->key.data[h->key.len] = '\0'; h->value.len = r->header_end - r->header_start; h->value.data = r->header_start; h->value.data[h->value.len] = '\0'; h->lowcase_key = ngx_pnalloc(r->pool, h->key.len); if (h->lowcase_key == NULL) { return NGX_ERROR; } } else { h->key.len = r->header_name_end - r->header_name_start; h->value.len = r->header_end - r->header_start; h->key.data = ngx_pnalloc(r->pool, h->key.len + 1 + h->value.len + 1 + h->key.len); if (h->key.data == NULL) { return NGX_ERROR; } h->value.data = h->key.data + h->key.len + 1; h->lowcase_key = h->key.data + h->key.len + 1 + h->value.len + 1; ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1); ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1); } h->hash = r->header_hash; if (h->key.len == r->lowcase_index) { ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len); } else { ngx_strlow(h->lowcase_key, h->key.data, h->key.len); } hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, h->lowcase_key, h->key.len); if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { return NGX_ERROR; } ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http fastcgi header: \"%V: %V\"", &h->key, &h->value); if (u->buffer.pos < u->buffer.last) { continue; } /* the end of the FastCGI record */ break; } if (rc == NGX_HTTP_PARSE_HEADER_DONE) { /* a whole header has been parsed successfully */ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http fastcgi header done"); if (u->headers_in.status) { status_line = &u->headers_in.status->value; status = ngx_atoi(status_line->data, 3); if (status == NGX_ERROR) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "upstream sent invalid status \"%V\"", status_line); return NGX_HTTP_UPSTREAM_INVALID_HEADER; } u->headers_in.status_n = status; u->headers_in.status_line = *status_line; } else if (u->headers_in.location) { u->headers_in.status_n = 302; ngx_str_set(&u->headers_in.status_line, "302 Moved Temporarily"); } else { u->headers_in.status_n = 200; ngx_str_set(&u->headers_in.status_line, "200 OK"); } if (u->state) { u->state->status = u->headers_in.status_n; } break; } /* there was error while a header line parsing */ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "upstream sent invalid header"); return NGX_HTTP_UPSTREAM_INVALID_HEADER; } if (last) { u->buffer.last = last; } f->length -= u->buffer.pos - start; if (f->length == 0) { if (f->padding) { f->state = ngx_http_fastcgi_st_padding; } else { f->state = ngx_http_fastcgi_st_version; } } if (rc == NGX_HTTP_PARSE_HEADER_DONE) { return NGX_OK; } if (rc == NGX_OK) { continue; } /* rc == NGX_AGAIN */ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "upstream split a header line in FastCGI records"); if (f->split_parts == NULL) { f->split_parts = ngx_array_create(r->pool, 1, sizeof(ngx_http_fastcgi_split_part_t)); if (f->split_parts == NULL) { return NGX_ERROR; } } part = ngx_array_push(f->split_parts); part->start = part_start; part->end = part_end; if (u->buffer.pos < u->buffer.last) { continue; } return NGX_AGAIN; } } static ngx_int_t ngx_http_fastcgi_input_filter_init(void *data) { ngx_http_request_t *r = data; ngx_http_fastcgi_loc_conf_t *flcf; flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module); r->upstream->pipe->length = flcf->keep_conn ? (off_t) sizeof(ngx_http_fastcgi_header_t) : -1; return NGX_OK; } static ngx_int_t ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf) { u_char *m, *msg; ngx_int_t rc; ngx_buf_t *b, **prev; ngx_chain_t *cl; ngx_http_request_t *r; ngx_http_fastcgi_ctx_t *f; ngx_http_fastcgi_loc_conf_t *flcf; if (buf->pos == buf->last) { return NGX_OK; } r = p->input_ctx; f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module); flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module); b = NULL; prev = &buf->shadow; f->pos = buf->pos; f->last = buf->last; for ( ;; ) { if (f->state < ngx_http_fastcgi_st_data) { rc = ngx_http_fastcgi_process_record(r, f); if (rc == NGX_AGAIN) { break; } if (rc == NGX_ERROR) { return NGX_ERROR; } if (f->type == NGX_HTTP_FASTCGI_STDOUT && f->length == 0) { f->state = ngx_http_fastcgi_st_version; if (!flcf->keep_conn) { p->upstream_done = 1; } ngx_log_debug0(NGX_LOG_DEBUG_HTTP, p->log, 0, "http fastcgi closed stdout"); continue; } if (f->type == NGX_HTTP_FASTCGI_END_REQUEST) { f->state = ngx_http_fastcgi_st_version; p->upstream_done = 1; if (flcf->keep_conn) { r->upstream->keepalive = 1; } ngx_log_debug0(NGX_LOG_DEBUG_HTTP, p->log, 0, "http fastcgi sent end request"); break; } } if (f->state == ngx_http_fastcgi_st_padding) { if (f->pos + f->padding < f->last) { f->state = ngx_http_fastcgi_st_version; f->pos += f->padding; continue; } if (f->pos + f->padding == f->last) { f->state = ngx_http_fastcgi_st_version; break; } f->padding -= f->last - f->pos; break; } /* f->state == ngx_http_fastcgi_st_data */ if (f->type == NGX_HTTP_FASTCGI_STDERR) { if (f->length) { if (f->pos == f->last) { break; } msg = f->pos; if (f->pos + f->length <= f->last) { f->pos += f->length; f->length = 0; f->state = ngx_http_fastcgi_st_padding; } else { f->length -= f->last - f->pos; f->pos = f->last; } for (m = f->pos - 1; msg < m; m--) { if (*m != LF && *m != CR && *m != '.' && *m != ' ') { break; } } ngx_log_error(NGX_LOG_ERR, p->log, 0, "FastCGI sent in stderr: \"%*s\"", m + 1 - msg, msg); if (f->pos == f->last) { break; } } else { f->state = ngx_http_fastcgi_st_version; } continue; } /* f->type == NGX_HTTP_FASTCGI_STDOUT */ if (f->pos == f->last) { break; } if (p->free) { cl = p->free; b = cl->buf; p->free = cl->next; ngx_free_chain(p->pool, cl); } else { b = ngx_alloc_buf(p->pool); if (b == NULL) { return NGX_ERROR; } } ngx_memzero(b, sizeof(ngx_buf_t)); b->pos = f->pos; b->start = buf->start; b->end = buf->end; b->tag = p->tag; b->temporary = 1; b->recycled = 1; *prev = b; prev = &b->shadow; cl = ngx_alloc_chain_link(p->pool); if (cl == NULL) { return NGX_ERROR; } cl->buf = b; cl->next = NULL; if (p->in) { *p->last_in = cl; } else { p->in = cl; } p->last_in = &cl->next; /* STUB */ b->num = buf->num; ngx_log_debug2(NGX_LOG_DEBUG_EVENT, p->log, 0, "input buf #%d %p", b->num, b->pos); if (f->pos + f->length < f->last) { if (f->padding) { f->state = ngx_http_fastcgi_st_padding; } else { f->state = ngx_http_fastcgi_st_version; } f->pos += f->length; b->last = f->pos; continue; } if (f->pos + f->length == f->last) { if (f->padding) { f->state = ngx_http_fastcgi_st_padding; } else { f->state = ngx_http_fastcgi_st_version; } b->last = f->last; break; } f->length -= f->last - f->pos; b->last = f->last; break; } if (flcf->keep_conn) { /* set p->length, minimal amount of data we want to see */ if (f->state < ngx_http_fastcgi_st_data) { p->length = 1; } else if (f->state == ngx_http_fastcgi_st_padding) { p->length = f->padding; } else { /* ngx_http_fastcgi_st_data */ p->length = f->length; } } if (b) { b->shadow = buf; b->last_shadow = 1; ngx_log_debug2(NGX_LOG_DEBUG_EVENT, p->log, 0, "input buf %p %z", b->pos, b->last - b->pos); return NGX_OK; } /* there is no data record in the buf, add it to free chain */ if (ngx_event_pipe_add_free_buf(p, buf) != NGX_OK) { return NGX_ERROR; } return NGX_OK; } static ngx_int_t ngx_http_fastcgi_process_record(ngx_http_request_t *r, ngx_http_fastcgi_ctx_t *f) { u_char ch, *p; ngx_http_fastcgi_state_e state; state = f->state; for (p = f->pos; p < f->last; p++) { ch = *p; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http fastcgi record byte: %02Xd", ch); switch (state) { case ngx_http_fastcgi_st_version: if (ch != 1) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "upstream sent unsupported FastCGI " "protocol version: %d", ch); return NGX_ERROR; } state = ngx_http_fastcgi_st_type; break; case ngx_http_fastcgi_st_type: switch (ch) { case NGX_HTTP_FASTCGI_STDOUT: case NGX_HTTP_FASTCGI_STDERR: case NGX_HTTP_FASTCGI_END_REQUEST: f->type = (ngx_uint_t) ch; break; default: ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "upstream sent invalid FastCGI " "record type: %d", ch); return NGX_ERROR; } state = ngx_http_fastcgi_st_request_id_hi; break; /* we support the single request per connection */ case ngx_http_fastcgi_st_request_id_hi: if (ch != 0) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "upstream sent unexpected FastCGI " "request id high byte: %d", ch); return NGX_ERROR; } state = ngx_http_fastcgi_st_request_id_lo; break; case ngx_http_fastcgi_st_request_id_lo: if (ch != 1) { ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "upstream sent unexpected FastCGI " "request id low byte: %d", ch); return NGX_ERROR; } state = ngx_http_fastcgi_st_content_length_hi; break; case ngx_http_fastcgi_st_content_length_hi: f->length = ch << 8; state = ngx_http_fastcgi_st_content_length_lo; break; case ngx_http_fastcgi_st_content_length_lo: f->length |= (size_t) ch; state = ngx_http_fastcgi_st_padding_length; break; case ngx_http_fastcgi_st_padding_length: f->padding = (size_t) ch; state = ngx_http_fastcgi_st_reserved; break; case ngx_http_fastcgi_st_reserved: state = ngx_http_fastcgi_st_data; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http fastcgi record length: %z", f->length); f->pos = p + 1; f->state = state; return NGX_OK; /* suppress warning */ case ngx_http_fastcgi_st_data: case ngx_http_fastcgi_st_padding: break; } } f->state = state; return NGX_AGAIN; } static void ngx_http_fastcgi_abort_request(ngx_http_request_t *r) { ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "abort http fastcgi request"); return; } static void ngx_http_fastcgi_finalize_request(ngx_http_request_t *r, ngx_int_t rc) { ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "finalize http fastcgi request"); return; } static ngx_int_t ngx_http_fastcgi_add_variables(ngx_conf_t *cf) { ngx_http_variable_t *var, *v; for (v = ngx_http_fastcgi_vars; v->name.len; v++) { var = ngx_http_add_variable(cf, &v->name, v->flags); if (var == NULL) { return NGX_ERROR; } var->get_handler = v->get_handler; var->data = v->data; } return NGX_OK; } static void * ngx_http_fastcgi_create_loc_conf(ngx_conf_t *cf) { ngx_http_fastcgi_loc_conf_t *conf; conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_fastcgi_loc_conf_t)); if (conf == NULL) { return NULL; } /* * set by ngx_pcalloc(): * * conf->upstream.bufs.num = 0; * conf->upstream.ignore_headers = 0; * conf->upstream.next_upstream = 0; * conf->upstream.cache_use_stale = 0; * conf->upstream.cache_methods = 0; * conf->upstream.temp_path = NULL; * conf->upstream.hide_headers_hash = { NULL, 0 }; * conf->upstream.uri = { 0, NULL }; * conf->upstream.location = NULL; * conf->upstream.store_lengths = NULL; * conf->upstream.store_values = NULL; * * conf->index.len = { 0, NULL }; */ conf->upstream.store = NGX_CONF_UNSET; conf->upstream.store_access = NGX_CONF_UNSET_UINT; conf->upstream.buffering = NGX_CONF_UNSET; conf->upstream.ignore_client_abort = NGX_CONF_UNSET; conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE; conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE; conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE; conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE; conf->upstream.pass_request_headers = NGX_CONF_UNSET; conf->upstream.pass_request_body = NGX_CONF_UNSET; #if (NGX_HTTP_CACHE) conf->upstream.cache = NGX_CONF_UNSET_PTR; conf->upstream.cache_min_uses = NGX_CONF_UNSET_UINT; conf->upstream.cache_bypass = NGX_CONF_UNSET_PTR; conf->upstream.no_cache = NGX_CONF_UNSET_PTR; conf->upstream.cache_valid = NGX_CONF_UNSET_PTR; conf->upstream.cache_lock = NGX_CONF_UNSET; conf->upstream.cache_lock_timeout = NGX_CONF_UNSET_MSEC; #endif conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; conf->upstream.intercept_errors = NGX_CONF_UNSET; /* "fastcgi_cyclic_temp_file" is disabled */ conf->upstream.cyclic_temp_file = 0; conf->catch_stderr = NGX_CONF_UNSET_PTR; conf->keep_conn = NGX_CONF_UNSET; ngx_str_set(&conf->upstream.module, "fastcgi"); return conf; } static char * ngx_http_fastcgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) { ngx_http_fastcgi_loc_conf_t *prev = parent; ngx_http_fastcgi_loc_conf_t *conf = child; size_t size; ngx_hash_init_t hash; ngx_http_core_loc_conf_t *clcf; if (conf->upstream.store != 0) { ngx_conf_merge_value(conf->upstream.store, prev->upstream.store, 0); if (conf->upstream.store_lengths == NULL) { conf->upstream.store_lengths = prev->upstream.store_lengths; conf->upstream.store_values = prev->upstream.store_values; } } ngx_conf_merge_uint_value(conf->upstream.store_access, prev->upstream.store_access, 0600); ngx_conf_merge_value(conf->upstream.buffering, prev->upstream.buffering, 1); ngx_conf_merge_value(conf->upstream.ignore_client_abort, prev->upstream.ignore_client_abort, 0); ngx_conf_merge_msec_value(conf->upstream.connect_timeout, prev->upstream.connect_timeout, 60000); ngx_conf_merge_msec_value(conf->upstream.send_timeout, prev->upstream.send_timeout, 60000); ngx_conf_merge_msec_value(conf->upstream.read_timeout, prev->upstream.read_timeout, 60000); ngx_conf_merge_size_value(conf->upstream.send_lowat, prev->upstream.send_lowat, 0); ngx_conf_merge_size_value(conf->upstream.buffer_size, prev->upstream.buffer_size, (size_t) ngx_pagesize); ngx_conf_merge_bufs_value(conf->upstream.bufs, prev->upstream.bufs, 8, ngx_pagesize); if (conf->upstream.bufs.num < 2) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "there must be at least 2 \"fastcgi_buffers\""); return NGX_CONF_ERROR; } size = conf->upstream.buffer_size; if (size < conf->upstream.bufs.size) { size = conf->upstream.bufs.size; } ngx_conf_merge_size_value(conf->upstream.busy_buffers_size_conf, prev->upstream.busy_buffers_size_conf, NGX_CONF_UNSET_SIZE); if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) { conf->upstream.busy_buffers_size = 2 * size; } else { conf->upstream.busy_buffers_size = conf->upstream.busy_buffers_size_conf; } if (conf->upstream.busy_buffers_size < size) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"fastcgi_busy_buffers_size\" must be equal or bigger than " "maximum of the value of \"fastcgi_buffer_size\" and " "one of the \"fastcgi_buffers\""); return NGX_CONF_ERROR; } if (conf->upstream.busy_buffers_size > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"fastcgi_busy_buffers_size\" must be less than " "the size of all \"fastcgi_buffers\" minus one buffer"); return NGX_CONF_ERROR; } ngx_conf_merge_size_value(conf->upstream.temp_file_write_size_conf, prev->upstream.temp_file_write_size_conf, NGX_CONF_UNSET_SIZE); if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) { conf->upstream.temp_file_write_size = 2 * size; } else { conf->upstream.temp_file_write_size = conf->upstream.temp_file_write_size_conf; } if (conf->upstream.temp_file_write_size < size) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"fastcgi_temp_file_write_size\" must be equal or bigger than " "maximum of the value of \"fastcgi_buffer_size\" and " "one of the \"fastcgi_buffers\""); return NGX_CONF_ERROR; } ngx_conf_merge_size_value(conf->upstream.max_temp_file_size_conf, prev->upstream.max_temp_file_size_conf, NGX_CONF_UNSET_SIZE); if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) { conf->upstream.max_temp_file_size = 1024 * 1024 * 1024; } else { conf->upstream.max_temp_file_size = conf->upstream.max_temp_file_size_conf; } if (conf->upstream.max_temp_file_size != 0 && conf->upstream.max_temp_file_size < size) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"fastcgi_max_temp_file_size\" must be equal to zero to disable " "the temporary files usage or must be equal or bigger than " "maximum of the value of \"fastcgi_buffer_size\" and " "one of the \"fastcgi_buffers\""); return NGX_CONF_ERROR; } ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, prev->upstream.ignore_headers, NGX_CONF_BITMASK_SET); ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, prev->upstream.next_upstream, (NGX_CONF_BITMASK_SET |NGX_HTTP_UPSTREAM_FT_ERROR |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { conf->upstream.next_upstream = NGX_CONF_BITMASK_SET |NGX_HTTP_UPSTREAM_FT_OFF; } if (ngx_conf_merge_path_value(cf, &conf->upstream.temp_path, prev->upstream.temp_path, &ngx_http_fastcgi_temp_path) != NGX_OK) { return NGX_CONF_ERROR; } #if (NGX_HTTP_CACHE) ngx_conf_merge_ptr_value(conf->upstream.cache, prev->upstream.cache, NULL); if (conf->upstream.cache && conf->upstream.cache->data == NULL) { ngx_shm_zone_t *shm_zone; shm_zone = conf->upstream.cache; ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"fastcgi_cache\" zone \"%V\" is unknown", &shm_zone->shm.name); return NGX_CONF_ERROR; } ngx_conf_merge_uint_value(conf->upstream.cache_min_uses, prev->upstream.cache_min_uses, 1); ngx_conf_merge_bitmask_value(conf->upstream.cache_use_stale, prev->upstream.cache_use_stale, (NGX_CONF_BITMASK_SET |NGX_HTTP_UPSTREAM_FT_OFF)); if (conf->upstream.cache_use_stale & NGX_HTTP_UPSTREAM_FT_OFF) { conf->upstream.cache_use_stale = NGX_CONF_BITMASK_SET |NGX_HTTP_UPSTREAM_FT_OFF; } if (conf->upstream.cache_use_stale & NGX_HTTP_UPSTREAM_FT_ERROR) { conf->upstream.cache_use_stale |= NGX_HTTP_UPSTREAM_FT_NOLIVE; } if (conf->upstream.cache_methods == 0) { conf->upstream.cache_methods = prev->upstream.cache_methods; } conf->upstream.cache_methods |= NGX_HTTP_GET|NGX_HTTP_HEAD; ngx_conf_merge_ptr_value(conf->upstream.cache_bypass, prev->upstream.cache_bypass, NULL); ngx_conf_merge_ptr_value(conf->upstream.no_cache, prev->upstream.no_cache, NULL); if (conf->upstream.no_cache && conf->upstream.cache_bypass == NULL) { ngx_log_error(NGX_LOG_WARN, cf->log, 0, "\"fastcgi_no_cache\" functionality has been changed in 0.8.46, " "now it should be used together with \"fastcgi_cache_bypass\""); } ngx_conf_merge_ptr_value(conf->upstream.cache_valid, prev->upstream.cache_valid, NULL); if (conf->cache_key.value.data == NULL) { conf->cache_key = prev->cache_key; } ngx_conf_merge_value(conf->upstream.cache_lock, prev->upstream.cache_lock, 0); ngx_conf_merge_msec_value(conf->upstream.cache_lock_timeout, prev->upstream.cache_lock_timeout, 5000); #endif ngx_conf_merge_value(conf->upstream.pass_request_headers, prev->upstream.pass_request_headers, 1); ngx_conf_merge_value(conf->upstream.pass_request_body, prev->upstream.pass_request_body, 1); ngx_conf_merge_value(conf->upstream.intercept_errors, prev->upstream.intercept_errors, 0); ngx_conf_merge_ptr_value(conf->catch_stderr, prev->catch_stderr, NULL); ngx_conf_merge_value(conf->keep_conn, prev->keep_conn, 0); ngx_conf_merge_str_value(conf->index, prev->index, ""); hash.max_size = 512; hash.bucket_size = ngx_align(64, ngx_cacheline_size); hash.name = "fastcgi_hide_headers_hash"; if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, &prev->upstream, ngx_http_fastcgi_hide_headers, &hash) != NGX_OK) { return NGX_CONF_ERROR; } if (conf->upstream.upstream == NULL) { conf->upstream.upstream = prev->upstream.upstream; } if (conf->fastcgi_lengths == NULL) { conf->fastcgi_lengths = prev->fastcgi_lengths; conf->fastcgi_values = prev->fastcgi_values; } if (conf->upstream.upstream || conf->fastcgi_lengths) { clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); if (clcf->handler == NULL && clcf->lmt_excpt) { clcf->handler = ngx_http_fastcgi_handler; } } #if (NGX_PCRE) if (conf->split_regex == NULL) { conf->split_regex = prev->split_regex; conf->split_name = prev->split_name; } #endif if (ngx_http_fastcgi_merge_params(cf, conf, prev) != NGX_OK) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } static ngx_int_t ngx_http_fastcgi_merge_params(ngx_conf_t *cf, ngx_http_fastcgi_loc_conf_t *conf, ngx_http_fastcgi_loc_conf_t *prev) { u_char *p; size_t size; uintptr_t *code; ngx_uint_t i, nsrc; ngx_array_t headers_names; #if (NGX_HTTP_CACHE) ngx_array_t params_merged; #endif ngx_hash_key_t *hk; ngx_hash_init_t hash; ngx_http_upstream_param_t *src; ngx_http_script_compile_t sc; ngx_http_script_copy_code_t *copy; if (conf->params_source == NULL) { conf->params_source = prev->params_source; if (prev->headers_hash.buckets #if (NGX_HTTP_CACHE) && ((conf->upstream.cache == NULL) == (prev->upstream.cache == NULL)) #endif ) { conf->flushes = prev->flushes; conf->params_len = prev->params_len; conf->params = prev->params; conf->headers_hash = prev->headers_hash; conf->header_params = prev->header_params; return NGX_OK; } } if (conf->params_source == NULL #if (NGX_HTTP_CACHE) && (conf->upstream.cache == NULL) #endif ) { conf->headers_hash.buckets = (void *) 1; return NGX_OK; } conf->params_len = ngx_array_create(cf->pool, 64, 1); if (conf->params_len == NULL) { return NGX_ERROR; } conf->params = ngx_array_create(cf->pool, 512, 1); if (conf->params == NULL) { return NGX_ERROR; } if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) != NGX_OK) { return NGX_ERROR; } if (conf->params_source) { src = conf->params_source->elts; nsrc = conf->params_source->nelts; } else { src = NULL; nsrc = 0; } #if (NGX_HTTP_CACHE) if (conf->upstream.cache) { ngx_keyval_t *h; ngx_http_upstream_param_t *s; if (ngx_array_init(¶ms_merged, cf->temp_pool, 4, sizeof(ngx_http_upstream_param_t)) != NGX_OK) { return NGX_ERROR; } for (i = 0; i < nsrc; i++) { s = ngx_array_push(¶ms_merged); if (s == NULL) { return NGX_ERROR; } *s = src[i]; } h = ngx_http_fastcgi_cache_headers; while (h->key.len) { src = params_merged.elts; nsrc = params_merged.nelts; for (i = 0; i < nsrc; i++) { if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { goto next; } } s = ngx_array_push(¶ms_merged); if (s == NULL) { return NGX_ERROR; } s->key = h->key; s->value = h->value; s->skip_empty = 0; next: h++; } src = params_merged.elts; nsrc = params_merged.nelts; } #endif for (i = 0; i < nsrc; i++) { if (src[i].key.len > sizeof("HTTP_") - 1 && ngx_strncmp(src[i].key.data, "HTTP_", sizeof("HTTP_") - 1) == 0) { hk = ngx_array_push(&headers_names); if (hk == NULL) { return NGX_ERROR; } hk->key.len = src[i].key.len - 5; hk->key.data = src[i].key.data + 5; hk->key_hash = ngx_hash_key_lc(hk->key.data, hk->key.len); hk->value = (void *) 1; if (src[i].value.len == 0) { continue; } } copy = ngx_array_push_n(conf->params_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; copy = ngx_array_push_n(conf->params_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].skip_empty; size = (sizeof(ngx_http_script_copy_code_t) + src[i].key.len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1); copy = ngx_array_push_n(conf->params, size); if (copy == NULL) { return NGX_ERROR; } copy->code = ngx_http_script_copy_code; copy->len = src[i].key.len; p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); ngx_memcpy(p, src[i].key.data, src[i].key.len); ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); sc.cf = cf; sc.source = &src[i].value; sc.flushes = &conf->flushes; sc.lengths = &conf->params_len; sc.values = &conf->params; if (ngx_http_script_compile(&sc) != NGX_OK) { return NGX_ERROR; } code = ngx_array_push_n(conf->params_len, sizeof(uintptr_t)); if (code == NULL) { return NGX_ERROR; } *code = (uintptr_t) NULL; code = ngx_array_push_n(conf->params, sizeof(uintptr_t)); if (code == NULL) { return NGX_ERROR; } *code = (uintptr_t) NULL; } code = ngx_array_push_n(conf->params_len, sizeof(uintptr_t)); if (code == NULL) { return NGX_ERROR; } *code = (uintptr_t) NULL; conf->header_params = headers_names.nelts; hash.hash = &conf->headers_hash; hash.key = ngx_hash_key_lc; hash.max_size = 512; hash.bucket_size = 64; hash.name = "fastcgi_params_hash"; hash.pool = cf->pool; hash.temp_pool = NULL; return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts); } static ngx_int_t ngx_http_fastcgi_script_name_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) { u_char *p; ngx_http_fastcgi_ctx_t *f; ngx_http_fastcgi_loc_conf_t *flcf; flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module); f = ngx_http_fastcgi_split(r, flcf); if (f == NULL) { return NGX_ERROR; } if (f->script_name.len == 0 || f->script_name.data[f->script_name.len - 1] != '/') { v->len = f->script_name.len; v->valid = 1; v->no_cacheable = 0; v->not_found = 0; v->data = f->script_name.data; return NGX_OK; } v->len = f->script_name.len + flcf->index.len; v->data = ngx_pnalloc(r->pool, v->len); if (v->data == NULL) { return NGX_ERROR; } p = ngx_copy(v->data, f->script_name.data, f->script_name.len); ngx_memcpy(p, flcf->index.data, flcf->index.len); return NGX_OK; } static ngx_int_t ngx_http_fastcgi_path_info_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) { ngx_http_fastcgi_ctx_t *f; ngx_http_fastcgi_loc_conf_t *flcf; flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module); f = ngx_http_fastcgi_split(r, flcf); if (f == NULL) { return NGX_ERROR; } v->len = f->path_info.len; v->valid = 1; v->no_cacheable = 0; v->not_found = 0; v->data = f->path_info.data; return NGX_OK; } static ngx_http_fastcgi_ctx_t * ngx_http_fastcgi_split(ngx_http_request_t *r, ngx_http_fastcgi_loc_conf_t *flcf) { ngx_http_fastcgi_ctx_t *f; #if (NGX_PCRE) ngx_int_t n; int captures[(1 + 2) * 3]; f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module); if (f == NULL) { f = ngx_pcalloc(r->pool, sizeof(ngx_http_fastcgi_ctx_t)); if (f == NULL) { return NULL; } ngx_http_set_ctx(r, f, ngx_http_fastcgi_module); } if (f->script_name.len) { return f; } if (flcf->split_regex == NULL) { f->script_name = r->uri; return f; } n = ngx_regex_exec(flcf->split_regex, &r->uri, captures, (1 + 2) * 3); if (n >= 0) { /* match */ f->script_name.len = captures[3] - captures[2]; f->script_name.data = r->uri.data + captures[2]; f->path_info.len = captures[5] - captures[4]; f->path_info.data = r->uri.data + captures[4]; return f; } if (n == NGX_REGEX_NO_MATCHED) { f->script_name = r->uri; return f; } ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, ngx_regex_exec_n " failed: %i on \"%V\" using \"%V\"", n, &r->uri, &flcf->split_name); return NULL; #else f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module); if (f == NULL) { f = ngx_pcalloc(r->pool, sizeof(ngx_http_fastcgi_ctx_t)); if (f == NULL) { return NULL; } ngx_http_set_ctx(r, f, ngx_http_fastcgi_module); } f->script_name = r->uri; return f; #endif } static char * ngx_http_fastcgi_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_fastcgi_loc_conf_t *flcf = conf; ngx_url_t u; ngx_str_t *value, *url; ngx_uint_t n; ngx_http_core_loc_conf_t *clcf; ngx_http_script_compile_t sc; if (flcf->upstream.upstream || flcf->fastcgi_lengths) { return "is duplicate"; } clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); clcf->handler = ngx_http_fastcgi_handler; if (clcf->name.data[clcf->name.len - 1] == '/') { clcf->auto_redirect = 1; } value = cf->args->elts; url = &value[1]; n = ngx_http_script_variables_count(url); if (n) { ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); sc.cf = cf; sc.source = url; sc.lengths = &flcf->fastcgi_lengths; sc.values = &flcf->fastcgi_values; sc.variables = n; sc.complete_lengths = 1; sc.complete_values = 1; if (ngx_http_script_compile(&sc) != NGX_OK) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } ngx_memzero(&u, sizeof(ngx_url_t)); u.url = value[1]; u.no_resolve = 1; flcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); if (flcf->upstream.upstream == NULL) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } static char * ngx_http_fastcgi_split_path_info(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { #if (NGX_PCRE) ngx_http_fastcgi_loc_conf_t *flcf = conf; ngx_str_t *value; ngx_regex_compile_t rc; u_char errstr[NGX_MAX_CONF_ERRSTR]; value = cf->args->elts; flcf->split_name = value[1]; ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); rc.pattern = value[1]; rc.pool = cf->pool; rc.err.len = NGX_MAX_CONF_ERRSTR; rc.err.data = errstr; if (ngx_regex_compile(&rc) != NGX_OK) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%V", &rc.err); return NGX_CONF_ERROR; } if (rc.captures != 2) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "pattern \"%V\" must have 2 captures", &value[1]); return NGX_CONF_ERROR; } flcf->split_regex = rc.regex; return NGX_CONF_OK; #else ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"%V\" requires PCRE library", &cmd->name); return NGX_CONF_ERROR; #endif } static char * ngx_http_fastcgi_store(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_fastcgi_loc_conf_t *flcf = conf; ngx_str_t *value; ngx_http_script_compile_t sc; if (flcf->upstream.store != NGX_CONF_UNSET || flcf->upstream.store_lengths) { return "is duplicate"; } value = cf->args->elts; if (ngx_strcmp(value[1].data, "off") == 0) { flcf->upstream.store = 0; return NGX_CONF_OK; } #if (NGX_HTTP_CACHE) if (flcf->upstream.cache != NGX_CONF_UNSET_PTR && flcf->upstream.cache != NULL) { return "is incompatible with \"fastcgi_cache\""; } #endif if (ngx_strcmp(value[1].data, "on") == 0) { flcf->upstream.store = 1; return NGX_CONF_OK; } /* include the terminating '\0' into script */ value[1].len++; ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); sc.cf = cf; sc.source = &value[1]; sc.lengths = &flcf->upstream.store_lengths; sc.values = &flcf->upstream.store_values; sc.variables = ngx_http_script_variables_count(&value[1]); sc.complete_lengths = 1; sc.complete_values = 1; if (ngx_http_script_compile(&sc) != NGX_OK) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } #if (NGX_HTTP_CACHE) static char * ngx_http_fastcgi_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_fastcgi_loc_conf_t *flcf = conf; ngx_str_t *value; value = cf->args->elts; if (flcf->upstream.cache != NGX_CONF_UNSET_PTR) { return "is duplicate"; } if (ngx_strcmp(value[1].data, "off") == 0) { flcf->upstream.cache = NULL; return NGX_CONF_OK; } if (flcf->upstream.store > 0 || flcf->upstream.store_lengths) { return "is incompatible with \"fastcgi_store\""; } flcf->upstream.cache = ngx_shared_memory_add(cf, &value[1], 0, &ngx_http_fastcgi_module); if (flcf->upstream.cache == NULL) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } static char * ngx_http_fastcgi_cache_key(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_http_fastcgi_loc_conf_t *flcf = conf; ngx_str_t *value; ngx_http_compile_complex_value_t ccv; value = cf->args->elts; if (flcf->cache_key.value.len) { return "is duplicate"; } ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); ccv.cf = cf; ccv.value = &value[1]; ccv.complex_value = &flcf->cache_key; if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } #endif static char * ngx_http_fastcgi_lowat_check(ngx_conf_t *cf, void *post, void *data) { #if (NGX_FREEBSD) ssize_t *np = data; if ((u_long) *np >= ngx_freebsd_net_inet_tcp_sendspace) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"fastcgi_send_lowat\" must be less than %d " "(sysctl net.inet.tcp.sendspace)", ngx_freebsd_net_inet_tcp_sendspace); return NGX_CONF_ERROR; } #elif !(NGX_HAVE_SO_SNDLOWAT) ssize_t *np = data; ngx_conf_log_error(NGX_LOG_WARN, cf, 0, "\"fastcgi_send_lowat\" is not supported, ignored"); *np = 0; #endif return NGX_CONF_OK; }