| |
| /* |
| * Copyright (C) Igor Sysoev |
| * Copyright (C) Nginx, Inc. |
| */ |
| |
| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <ngx_http.h> |
| |
| |
| #define NGX_HTTP_PROXY_COOKIE_SECURE 0x0001 |
| #define NGX_HTTP_PROXY_COOKIE_SECURE_ON 0x0002 |
| #define NGX_HTTP_PROXY_COOKIE_SECURE_OFF 0x0004 |
| #define NGX_HTTP_PROXY_COOKIE_HTTPONLY 0x0008 |
| #define NGX_HTTP_PROXY_COOKIE_HTTPONLY_ON 0x0010 |
| #define NGX_HTTP_PROXY_COOKIE_HTTPONLY_OFF 0x0020 |
| #define NGX_HTTP_PROXY_COOKIE_SAMESITE 0x0040 |
| #define NGX_HTTP_PROXY_COOKIE_SAMESITE_STRICT 0x0080 |
| #define NGX_HTTP_PROXY_COOKIE_SAMESITE_LAX 0x0100 |
| #define NGX_HTTP_PROXY_COOKIE_SAMESITE_NONE 0x0200 |
| #define NGX_HTTP_PROXY_COOKIE_SAMESITE_OFF 0x0400 |
| |
| |
| typedef struct { |
| ngx_array_t caches; /* ngx_http_file_cache_t * */ |
| } ngx_http_proxy_main_conf_t; |
| |
| |
| typedef struct ngx_http_proxy_rewrite_s ngx_http_proxy_rewrite_t; |
| |
| typedef ngx_int_t (*ngx_http_proxy_rewrite_pt)(ngx_http_request_t *r, |
| ngx_str_t *value, size_t prefix, size_t len, |
| ngx_http_proxy_rewrite_t *pr); |
| |
| struct ngx_http_proxy_rewrite_s { |
| ngx_http_proxy_rewrite_pt handler; |
| |
| union { |
| ngx_http_complex_value_t complex; |
| #if (NGX_PCRE) |
| ngx_http_regex_t *regex; |
| #endif |
| } pattern; |
| |
| ngx_http_complex_value_t replacement; |
| }; |
| |
| |
| typedef struct { |
| union { |
| ngx_http_complex_value_t complex; |
| #if (NGX_PCRE) |
| ngx_http_regex_t *regex; |
| #endif |
| } cookie; |
| |
| ngx_array_t flags_values; |
| ngx_uint_t regex; |
| } ngx_http_proxy_cookie_flags_t; |
| |
| |
| typedef struct { |
| ngx_str_t key_start; |
| ngx_str_t schema; |
| ngx_str_t host_header; |
| ngx_str_t port; |
| ngx_str_t uri; |
| } ngx_http_proxy_vars_t; |
| |
| |
| typedef struct { |
| ngx_array_t *flushes; |
| ngx_array_t *lengths; |
| ngx_array_t *values; |
| ngx_hash_t hash; |
| } ngx_http_proxy_headers_t; |
| |
| |
| typedef struct { |
| ngx_http_upstream_conf_t upstream; |
| |
| ngx_array_t *body_flushes; |
| ngx_array_t *body_lengths; |
| ngx_array_t *body_values; |
| ngx_str_t body_source; |
| |
| ngx_http_proxy_headers_t headers; |
| #if (NGX_HTTP_CACHE) |
| ngx_http_proxy_headers_t headers_cache; |
| #endif |
| ngx_array_t *headers_source; |
| |
| ngx_array_t *proxy_lengths; |
| ngx_array_t *proxy_values; |
| |
| ngx_array_t *redirects; |
| ngx_array_t *cookie_domains; |
| ngx_array_t *cookie_paths; |
| ngx_array_t *cookie_flags; |
| |
| ngx_http_complex_value_t *method; |
| ngx_str_t location; |
| ngx_str_t url; |
| |
| #if (NGX_HTTP_CACHE) |
| ngx_http_complex_value_t cache_key; |
| #endif |
| |
| ngx_http_proxy_vars_t vars; |
| |
| ngx_flag_t redirect; |
| |
| ngx_uint_t http_version; |
| |
| ngx_uint_t headers_hash_max_size; |
| ngx_uint_t headers_hash_bucket_size; |
| |
| #if (NGX_HTTP_SSL) |
| ngx_uint_t ssl; |
| ngx_uint_t ssl_protocols; |
| ngx_str_t ssl_ciphers; |
| ngx_uint_t ssl_verify_depth; |
| ngx_str_t ssl_trusted_certificate; |
| ngx_str_t ssl_crl; |
| ngx_array_t *ssl_conf_commands; |
| #endif |
| } ngx_http_proxy_loc_conf_t; |
| |
| |
| typedef struct { |
| ngx_http_status_t status; |
| ngx_http_chunked_t chunked; |
| ngx_http_proxy_vars_t vars; |
| off_t internal_body_length; |
| |
| ngx_chain_t *free; |
| ngx_chain_t *busy; |
| |
| unsigned head:1; |
| unsigned internal_chunked:1; |
| unsigned header_sent:1; |
| } ngx_http_proxy_ctx_t; |
| |
| |
| static ngx_int_t ngx_http_proxy_eval(ngx_http_request_t *r, |
| ngx_http_proxy_ctx_t *ctx, ngx_http_proxy_loc_conf_t *plcf); |
| #if (NGX_HTTP_CACHE) |
| static ngx_int_t ngx_http_proxy_create_key(ngx_http_request_t *r); |
| #endif |
| static ngx_int_t ngx_http_proxy_create_request(ngx_http_request_t *r); |
| static ngx_int_t ngx_http_proxy_reinit_request(ngx_http_request_t *r); |
| static ngx_int_t ngx_http_proxy_body_output_filter(void *data, ngx_chain_t *in); |
| static ngx_int_t ngx_http_proxy_process_status_line(ngx_http_request_t *r); |
| static ngx_int_t ngx_http_proxy_process_header(ngx_http_request_t *r); |
| static ngx_int_t ngx_http_proxy_input_filter_init(void *data); |
| static ngx_int_t ngx_http_proxy_copy_filter(ngx_event_pipe_t *p, |
| ngx_buf_t *buf); |
| static ngx_int_t ngx_http_proxy_chunked_filter(ngx_event_pipe_t *p, |
| ngx_buf_t *buf); |
| static ngx_int_t ngx_http_proxy_non_buffered_copy_filter(void *data, |
| ssize_t bytes); |
| static ngx_int_t ngx_http_proxy_non_buffered_chunked_filter(void *data, |
| ssize_t bytes); |
| static void ngx_http_proxy_abort_request(ngx_http_request_t *r); |
| static void ngx_http_proxy_finalize_request(ngx_http_request_t *r, |
| ngx_int_t rc); |
| |
| static ngx_int_t ngx_http_proxy_host_variable(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data); |
| static ngx_int_t ngx_http_proxy_port_variable(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data); |
| static ngx_int_t |
| ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data); |
| static ngx_int_t |
| ngx_http_proxy_internal_body_length_variable(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data); |
| static ngx_int_t ngx_http_proxy_internal_chunked_variable(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data); |
| static ngx_int_t ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r, |
| ngx_table_elt_t *h, size_t prefix); |
| static ngx_int_t ngx_http_proxy_rewrite_cookie(ngx_http_request_t *r, |
| ngx_table_elt_t *h); |
| static ngx_int_t ngx_http_proxy_parse_cookie(ngx_str_t *value, |
| ngx_array_t *attrs); |
| static ngx_int_t ngx_http_proxy_rewrite_cookie_value(ngx_http_request_t *r, |
| ngx_str_t *value, ngx_array_t *rewrites); |
| static ngx_int_t ngx_http_proxy_rewrite_cookie_flags(ngx_http_request_t *r, |
| ngx_array_t *attrs, ngx_array_t *flags); |
| static ngx_int_t ngx_http_proxy_edit_cookie_flags(ngx_http_request_t *r, |
| ngx_array_t *attrs, ngx_uint_t flags); |
| static ngx_int_t ngx_http_proxy_rewrite(ngx_http_request_t *r, |
| ngx_str_t *value, size_t prefix, size_t len, ngx_str_t *replacement); |
| |
| static ngx_int_t ngx_http_proxy_add_variables(ngx_conf_t *cf); |
| static void *ngx_http_proxy_create_main_conf(ngx_conf_t *cf); |
| static void *ngx_http_proxy_create_loc_conf(ngx_conf_t *cf); |
| static char *ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, |
| void *parent, void *child); |
| static ngx_int_t ngx_http_proxy_init_headers(ngx_conf_t *cf, |
| ngx_http_proxy_loc_conf_t *conf, ngx_http_proxy_headers_t *headers, |
| ngx_keyval_t *default_headers); |
| |
| static char *ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| static char *ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| static char *ngx_http_proxy_cookie_domain(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| static char *ngx_http_proxy_cookie_path(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| static char *ngx_http_proxy_cookie_flags(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| static char *ngx_http_proxy_store(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| #if (NGX_HTTP_CACHE) |
| static char *ngx_http_proxy_cache(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| static char *ngx_http_proxy_cache_key(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| #endif |
| #if (NGX_HTTP_SSL) |
| static char *ngx_http_proxy_ssl_password_file(ngx_conf_t *cf, |
| ngx_command_t *cmd, void *conf); |
| #endif |
| |
| static char *ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data); |
| #if (NGX_HTTP_SSL) |
| static char *ngx_http_proxy_ssl_conf_command_check(ngx_conf_t *cf, void *post, |
| void *data); |
| #endif |
| |
| static ngx_int_t ngx_http_proxy_rewrite_regex(ngx_conf_t *cf, |
| ngx_http_proxy_rewrite_t *pr, ngx_str_t *regex, ngx_uint_t caseless); |
| |
| #if (NGX_HTTP_SSL) |
| static ngx_int_t ngx_http_proxy_set_ssl(ngx_conf_t *cf, |
| ngx_http_proxy_loc_conf_t *plcf); |
| #endif |
| static void ngx_http_proxy_set_vars(ngx_url_t *u, ngx_http_proxy_vars_t *v); |
| |
| |
| static ngx_conf_post_t ngx_http_proxy_lowat_post = |
| { ngx_http_proxy_lowat_check }; |
| |
| |
| static ngx_conf_bitmask_t ngx_http_proxy_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("non_idempotent"), NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT }, |
| { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, |
| { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, |
| { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, |
| { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, |
| { ngx_string("http_403"), NGX_HTTP_UPSTREAM_FT_HTTP_403 }, |
| { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, |
| { ngx_string("http_429"), NGX_HTTP_UPSTREAM_FT_HTTP_429 }, |
| { ngx_string("updating"), NGX_HTTP_UPSTREAM_FT_UPDATING }, |
| { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, |
| { ngx_null_string, 0 } |
| }; |
| |
| |
| #if (NGX_HTTP_SSL) |
| |
| static ngx_conf_bitmask_t ngx_http_proxy_ssl_protocols[] = { |
| { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, |
| { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, |
| { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, |
| { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, |
| { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, |
| { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, |
| { ngx_null_string, 0 } |
| }; |
| |
| static ngx_conf_post_t ngx_http_proxy_ssl_conf_command_post = |
| { ngx_http_proxy_ssl_conf_command_check }; |
| |
| #endif |
| |
| |
| static ngx_conf_enum_t ngx_http_proxy_http_version[] = { |
| { ngx_string("1.0"), NGX_HTTP_VERSION_10 }, |
| { ngx_string("1.1"), NGX_HTTP_VERSION_11 }, |
| { ngx_null_string, 0 } |
| }; |
| |
| |
| ngx_module_t ngx_http_proxy_module; |
| |
| |
| static ngx_command_t ngx_http_proxy_commands[] = { |
| |
| { ngx_string("proxy_pass"), |
| NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_HTTP_LMT_CONF|NGX_CONF_TAKE1, |
| ngx_http_proxy_pass, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("proxy_redirect"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, |
| ngx_http_proxy_redirect, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("proxy_cookie_domain"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, |
| ngx_http_proxy_cookie_domain, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("proxy_cookie_path"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, |
| ngx_http_proxy_cookie_path, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("proxy_cookie_flags"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234, |
| ngx_http_proxy_cookie_flags, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("proxy_store"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_http_proxy_store, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.store_access), |
| NULL }, |
| |
| { ngx_string("proxy_buffering"), |
| 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_proxy_loc_conf_t, upstream.buffering), |
| NULL }, |
| |
| { ngx_string("proxy_request_buffering"), |
| 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_proxy_loc_conf_t, upstream.request_buffering), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.ignore_client_abort), |
| NULL }, |
| |
| { ngx_string("proxy_bind"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, |
| ngx_http_upstream_bind_set_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_proxy_loc_conf_t, upstream.local), |
| NULL }, |
| |
| { ngx_string("proxy_socket_keepalive"), |
| 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_proxy_loc_conf_t, upstream.socket_keepalive), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.connect_timeout), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.send_timeout), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.send_lowat), |
| &ngx_http_proxy_lowat_post }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.intercept_errors), |
| NULL }, |
| |
| { ngx_string("proxy_set_header"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
| ngx_conf_set_keyval_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_proxy_loc_conf_t, headers_source), |
| NULL }, |
| |
| { ngx_string("proxy_headers_hash_max_size"), |
| 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_proxy_loc_conf_t, headers_hash_max_size), |
| NULL }, |
| |
| { ngx_string("proxy_headers_hash_bucket_size"), |
| 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_proxy_loc_conf_t, headers_hash_bucket_size), |
| NULL }, |
| |
| { ngx_string("proxy_set_body"), |
| 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_proxy_loc_conf_t, body_source), |
| NULL }, |
| |
| { ngx_string("proxy_method"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_http_set_complex_value_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_proxy_loc_conf_t, method), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.pass_request_headers), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.pass_request_body), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.buffer_size), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.read_timeout), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.bufs), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.busy_buffers_size_conf), |
| NULL }, |
| |
| { ngx_string("proxy_force_ranges"), |
| 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_proxy_loc_conf_t, upstream.force_ranges), |
| NULL }, |
| |
| { ngx_string("proxy_limit_rate"), |
| 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_proxy_loc_conf_t, upstream.limit_rate), |
| NULL }, |
| |
| #if (NGX_HTTP_CACHE) |
| |
| { ngx_string("proxy_cache"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_http_proxy_cache, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("proxy_cache_key"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_http_proxy_cache_key, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("proxy_cache_path"), |
| NGX_HTTP_MAIN_CONF|NGX_CONF_2MORE, |
| ngx_http_file_cache_set_slot, |
| NGX_HTTP_MAIN_CONF_OFFSET, |
| offsetof(ngx_http_proxy_main_conf_t, caches), |
| &ngx_http_proxy_module }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.cache_bypass), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.no_cache), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.cache_valid), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.cache_min_uses), |
| NULL }, |
| |
| { ngx_string("proxy_cache_max_range_offset"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_off_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_proxy_loc_conf_t, upstream.cache_max_range_offset), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.cache_use_stale), |
| &ngx_http_proxy_next_upstream_masks }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.cache_methods), |
| &ngx_http_upstream_cache_method_mask }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.cache_lock), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.cache_lock_timeout), |
| NULL }, |
| |
| { ngx_string("proxy_cache_lock_age"), |
| 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_proxy_loc_conf_t, upstream.cache_lock_age), |
| NULL }, |
| |
| { ngx_string("proxy_cache_revalidate"), |
| 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_proxy_loc_conf_t, upstream.cache_revalidate), |
| NULL }, |
| |
| { ngx_string("proxy_cache_convert_head"), |
| 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_proxy_loc_conf_t, upstream.cache_convert_head), |
| NULL }, |
| |
| { ngx_string("proxy_cache_background_update"), |
| 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_proxy_loc_conf_t, upstream.cache_background_update), |
| NULL }, |
| |
| #endif |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.temp_path), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.max_temp_file_size_conf), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.temp_file_write_size_conf), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.next_upstream), |
| &ngx_http_proxy_next_upstream_masks }, |
| |
| { ngx_string("proxy_next_upstream_tries"), |
| 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_proxy_loc_conf_t, upstream.next_upstream_tries), |
| NULL }, |
| |
| { ngx_string("proxy_next_upstream_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_proxy_loc_conf_t, upstream.next_upstream_timeout), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.pass_headers), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.hide_headers), |
| NULL }, |
| |
| { ngx_string("proxy_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_proxy_loc_conf_t, upstream.ignore_headers), |
| &ngx_http_upstream_ignore_headers_masks }, |
| |
| { ngx_string("proxy_http_version"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_enum_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_proxy_loc_conf_t, http_version), |
| &ngx_http_proxy_http_version }, |
| |
| #if (NGX_HTTP_SSL) |
| |
| { ngx_string("proxy_ssl_session_reuse"), |
| 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_proxy_loc_conf_t, upstream.ssl_session_reuse), |
| NULL }, |
| |
| { ngx_string("proxy_ssl_protocols"), |
| 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_proxy_loc_conf_t, ssl_protocols), |
| &ngx_http_proxy_ssl_protocols }, |
| |
| { ngx_string("proxy_ssl_ciphers"), |
| 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_proxy_loc_conf_t, ssl_ciphers), |
| NULL }, |
| |
| { ngx_string("proxy_ssl_alpn"), |
| 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_proxy_loc_conf_t, upstream.ssl_alpn), |
| NULL }, |
| |
| { ngx_string("proxy_ssl_name"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_http_set_complex_value_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_proxy_loc_conf_t, upstream.ssl_name), |
| NULL }, |
| |
| { ngx_string("proxy_ssl_server_name"), |
| 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_proxy_loc_conf_t, upstream.ssl_server_name), |
| NULL }, |
| |
| { ngx_string("proxy_ssl_verify"), |
| 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_proxy_loc_conf_t, upstream.ssl_verify), |
| NULL }, |
| |
| { ngx_string("proxy_ssl_verify_depth"), |
| 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_proxy_loc_conf_t, ssl_verify_depth), |
| NULL }, |
| |
| { ngx_string("proxy_ssl_trusted_certificate"), |
| 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_proxy_loc_conf_t, ssl_trusted_certificate), |
| NULL }, |
| |
| { ngx_string("proxy_ssl_crl"), |
| 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_proxy_loc_conf_t, ssl_crl), |
| NULL }, |
| |
| { ngx_string("proxy_ssl_certificate"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_http_set_complex_value_zero_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_proxy_loc_conf_t, upstream.ssl_certificate), |
| NULL }, |
| |
| { ngx_string("proxy_ssl_certificate_key"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_http_set_complex_value_zero_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_proxy_loc_conf_t, upstream.ssl_certificate_key), |
| NULL }, |
| |
| { ngx_string("proxy_ssl_password_file"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_http_proxy_ssl_password_file, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("proxy_ssl_conf_command"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
| ngx_conf_set_keyval_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_proxy_loc_conf_t, ssl_conf_commands), |
| &ngx_http_proxy_ssl_conf_command_post }, |
| |
| #endif |
| |
| ngx_null_command |
| }; |
| |
| |
| static ngx_http_module_t ngx_http_proxy_module_ctx = { |
| ngx_http_proxy_add_variables, /* preconfiguration */ |
| NULL, /* postconfiguration */ |
| |
| ngx_http_proxy_create_main_conf, /* create main configuration */ |
| NULL, /* init main configuration */ |
| |
| NULL, /* create server configuration */ |
| NULL, /* merge server configuration */ |
| |
| ngx_http_proxy_create_loc_conf, /* create location configuration */ |
| ngx_http_proxy_merge_loc_conf /* merge location configuration */ |
| }; |
| |
| |
| ngx_module_t ngx_http_proxy_module = { |
| NGX_MODULE_V1, |
| &ngx_http_proxy_module_ctx, /* module context */ |
| ngx_http_proxy_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 char ngx_http_proxy_version[] = " HTTP/1.0" CRLF; |
| static char ngx_http_proxy_version_11[] = " HTTP/1.1" CRLF; |
| |
| |
| static ngx_keyval_t ngx_http_proxy_headers[] = { |
| { ngx_string("Host"), ngx_string("$proxy_host") }, |
| { ngx_string("Connection"), ngx_string("close") }, |
| { ngx_string("Content-Length"), ngx_string("$proxy_internal_body_length") }, |
| { ngx_string("Transfer-Encoding"), ngx_string("$proxy_internal_chunked") }, |
| { ngx_string("TE"), ngx_string("") }, |
| { ngx_string("Keep-Alive"), ngx_string("") }, |
| { ngx_string("Expect"), ngx_string("") }, |
| { ngx_string("Upgrade"), ngx_string("") }, |
| { ngx_null_string, ngx_null_string } |
| }; |
| |
| |
| static ngx_str_t ngx_http_proxy_hide_headers[] = { |
| ngx_string("Date"), |
| ngx_string("Server"), |
| ngx_string("X-Pad"), |
| ngx_string("X-Accel-Expires"), |
| ngx_string("X-Accel-Redirect"), |
| ngx_string("X-Accel-Limit-Rate"), |
| ngx_string("X-Accel-Buffering"), |
| ngx_string("X-Accel-Charset"), |
| ngx_null_string |
| }; |
| |
| |
| #if (NGX_HTTP_CACHE) |
| |
| static ngx_keyval_t ngx_http_proxy_cache_headers[] = { |
| { ngx_string("Host"), ngx_string("$proxy_host") }, |
| { ngx_string("Connection"), ngx_string("close") }, |
| { ngx_string("Content-Length"), ngx_string("$proxy_internal_body_length") }, |
| { ngx_string("Transfer-Encoding"), ngx_string("$proxy_internal_chunked") }, |
| { ngx_string("TE"), ngx_string("") }, |
| { ngx_string("Keep-Alive"), ngx_string("") }, |
| { ngx_string("Expect"), ngx_string("") }, |
| { ngx_string("Upgrade"), ngx_string("") }, |
| { ngx_string("If-Modified-Since"), |
| ngx_string("$upstream_cache_last_modified") }, |
| { ngx_string("If-Unmodified-Since"), ngx_string("") }, |
| { ngx_string("If-None-Match"), ngx_string("$upstream_cache_etag") }, |
| { ngx_string("If-Match"), ngx_string("") }, |
| { ngx_string("Range"), ngx_string("") }, |
| { ngx_string("If-Range"), ngx_string("") }, |
| { ngx_null_string, ngx_null_string } |
| }; |
| |
| #endif |
| |
| |
| static ngx_http_variable_t ngx_http_proxy_vars[] = { |
| |
| { ngx_string("proxy_host"), NULL, ngx_http_proxy_host_variable, 0, |
| NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
| |
| { ngx_string("proxy_port"), NULL, ngx_http_proxy_port_variable, 0, |
| NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
| |
| { ngx_string("proxy_add_x_forwarded_for"), NULL, |
| ngx_http_proxy_add_x_forwarded_for_variable, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| |
| #if 0 |
| { ngx_string("proxy_add_via"), NULL, NULL, 0, NGX_HTTP_VAR_NOHASH, 0 }, |
| #endif |
| |
| { ngx_string("proxy_internal_body_length"), NULL, |
| ngx_http_proxy_internal_body_length_variable, 0, |
| NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
| |
| { ngx_string("proxy_internal_chunked"), NULL, |
| ngx_http_proxy_internal_chunked_variable, 0, |
| NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
| |
| ngx_http_null_variable |
| }; |
| |
| |
| static ngx_path_init_t ngx_http_proxy_temp_path = { |
| ngx_string(NGX_HTTP_PROXY_TEMP_PATH), { 1, 2, 0 } |
| }; |
| |
| |
| static ngx_conf_bitmask_t ngx_http_proxy_cookie_flags_masks[] = { |
| |
| { ngx_string("secure"), |
| NGX_HTTP_PROXY_COOKIE_SECURE|NGX_HTTP_PROXY_COOKIE_SECURE_ON }, |
| |
| { ngx_string("nosecure"), |
| NGX_HTTP_PROXY_COOKIE_SECURE|NGX_HTTP_PROXY_COOKIE_SECURE_OFF }, |
| |
| { ngx_string("httponly"), |
| NGX_HTTP_PROXY_COOKIE_HTTPONLY|NGX_HTTP_PROXY_COOKIE_HTTPONLY_ON }, |
| |
| { ngx_string("nohttponly"), |
| NGX_HTTP_PROXY_COOKIE_HTTPONLY|NGX_HTTP_PROXY_COOKIE_HTTPONLY_OFF }, |
| |
| { ngx_string("samesite=strict"), |
| NGX_HTTP_PROXY_COOKIE_SAMESITE|NGX_HTTP_PROXY_COOKIE_SAMESITE_STRICT }, |
| |
| { ngx_string("samesite=lax"), |
| NGX_HTTP_PROXY_COOKIE_SAMESITE|NGX_HTTP_PROXY_COOKIE_SAMESITE_LAX }, |
| |
| { ngx_string("samesite=none"), |
| NGX_HTTP_PROXY_COOKIE_SAMESITE|NGX_HTTP_PROXY_COOKIE_SAMESITE_NONE }, |
| |
| { ngx_string("nosamesite"), |
| NGX_HTTP_PROXY_COOKIE_SAMESITE|NGX_HTTP_PROXY_COOKIE_SAMESITE_OFF }, |
| |
| { ngx_null_string, 0 } |
| }; |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_handler(ngx_http_request_t *r) |
| { |
| ngx_int_t rc; |
| ngx_http_upstream_t *u; |
| ngx_http_proxy_ctx_t *ctx; |
| ngx_http_proxy_loc_conf_t *plcf; |
| #if (NGX_HTTP_CACHE) |
| ngx_http_proxy_main_conf_t *pmcf; |
| #endif |
| |
| if (ngx_http_upstream_create(r) != NGX_OK) { |
| return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_proxy_ctx_t)); |
| if (ctx == NULL) { |
| return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| ngx_http_set_ctx(r, ctx, ngx_http_proxy_module); |
| |
| plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module); |
| |
| u = r->upstream; |
| |
| if (plcf->proxy_lengths == NULL) { |
| ctx->vars = plcf->vars; |
| u->schema = plcf->vars.schema; |
| #if (NGX_HTTP_SSL) |
| u->ssl = (plcf->upstream.ssl != NULL); |
| #endif |
| |
| } else { |
| if (ngx_http_proxy_eval(r, ctx, plcf) != NGX_OK) { |
| return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| } |
| |
| u->output.tag = (ngx_buf_tag_t) &ngx_http_proxy_module; |
| |
| u->conf = &plcf->upstream; |
| |
| #if (NGX_HTTP_CACHE) |
| pmcf = ngx_http_get_module_main_conf(r, ngx_http_proxy_module); |
| |
| u->caches = &pmcf->caches; |
| u->create_key = ngx_http_proxy_create_key; |
| #endif |
| |
| u->create_request = ngx_http_proxy_create_request; |
| u->reinit_request = ngx_http_proxy_reinit_request; |
| u->process_header = ngx_http_proxy_process_status_line; |
| u->abort_request = ngx_http_proxy_abort_request; |
| u->finalize_request = ngx_http_proxy_finalize_request; |
| r->state = 0; |
| |
| if (plcf->redirects) { |
| u->rewrite_redirect = ngx_http_proxy_rewrite_redirect; |
| } |
| |
| if (plcf->cookie_domains || plcf->cookie_paths || plcf->cookie_flags) { |
| u->rewrite_cookie = ngx_http_proxy_rewrite_cookie; |
| } |
| |
| u->buffering = plcf->upstream.buffering; |
| |
| 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_proxy_copy_filter; |
| u->pipe->input_ctx = r; |
| |
| u->input_filter_init = ngx_http_proxy_input_filter_init; |
| u->input_filter = ngx_http_proxy_non_buffered_copy_filter; |
| u->input_filter_ctx = r; |
| |
| u->accel = 1; |
| |
| if (!plcf->upstream.request_buffering |
| && plcf->body_values == NULL && plcf->upstream.pass_request_body |
| && (!r->headers_in.chunked |
| || plcf->http_version == NGX_HTTP_VERSION_11)) |
| { |
| r->request_body_no_buffering = 1; |
| } |
| |
| 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_proxy_eval(ngx_http_request_t *r, ngx_http_proxy_ctx_t *ctx, |
| ngx_http_proxy_loc_conf_t *plcf) |
| { |
| u_char *p; |
| size_t add; |
| u_short port; |
| ngx_str_t proxy; |
| ngx_url_t url; |
| ngx_http_upstream_t *u; |
| |
| if (ngx_http_script_run(r, &proxy, plcf->proxy_lengths->elts, 0, |
| plcf->proxy_values->elts) |
| == NULL) |
| { |
| return NGX_ERROR; |
| } |
| |
| if (proxy.len > 7 |
| && ngx_strncasecmp(proxy.data, (u_char *) "http://", 7) == 0) |
| { |
| add = 7; |
| port = 80; |
| |
| #if (NGX_HTTP_SSL) |
| |
| } else if (proxy.len > 8 |
| && ngx_strncasecmp(proxy.data, (u_char *) "https://", 8) == 0) |
| { |
| add = 8; |
| port = 443; |
| r->upstream->ssl = 1; |
| |
| #endif |
| |
| } else { |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "invalid URL prefix in \"%V\"", &proxy); |
| return NGX_ERROR; |
| } |
| |
| u = r->upstream; |
| |
| u->schema.len = add; |
| u->schema.data = proxy.data; |
| |
| ngx_memzero(&url, sizeof(ngx_url_t)); |
| |
| url.url.len = proxy.len - add; |
| url.url.data = proxy.data + add; |
| url.default_port = port; |
| url.uri_part = 1; |
| 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; |
| } |
| |
| if (url.uri.len) { |
| if (url.uri.data[0] == '?') { |
| p = ngx_pnalloc(r->pool, url.uri.len + 1); |
| if (p == NULL) { |
| return NGX_ERROR; |
| } |
| |
| *p++ = '/'; |
| ngx_memcpy(p, url.uri.data, url.uri.len); |
| |
| url.uri.len++; |
| url.uri.data = p - 1; |
| } |
| } |
| |
| ctx->vars.key_start = u->schema; |
| |
| ngx_http_proxy_set_vars(&url, &ctx->vars); |
| |
| u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t)); |
| if (u->resolved == NULL) { |
| return NGX_ERROR; |
| } |
| |
| if (url.addrs) { |
| u->resolved->sockaddr = url.addrs[0].sockaddr; |
| u->resolved->socklen = url.addrs[0].socklen; |
| u->resolved->name = url.addrs[0].name; |
| u->resolved->naddrs = 1; |
| } |
| |
| u->resolved->host = url.host; |
| u->resolved->port = (in_port_t) (url.no_port ? port : url.port); |
| u->resolved->no_port = url.no_port; |
| |
| return NGX_OK; |
| } |
| |
| |
| #if (NGX_HTTP_CACHE) |
| |
| static ngx_int_t |
| ngx_http_proxy_create_key(ngx_http_request_t *r) |
| { |
| size_t len, loc_len; |
| u_char *p; |
| uintptr_t escape; |
| ngx_str_t *key; |
| ngx_http_upstream_t *u; |
| ngx_http_proxy_ctx_t *ctx; |
| ngx_http_proxy_loc_conf_t *plcf; |
| |
| u = r->upstream; |
| |
| plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module); |
| |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| key = ngx_array_push(&r->cache->keys); |
| if (key == NULL) { |
| return NGX_ERROR; |
| } |
| |
| if (plcf->cache_key.value.data) { |
| |
| if (ngx_http_complex_value(r, &plcf->cache_key, key) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| return NGX_OK; |
| } |
| |
| *key = ctx->vars.key_start; |
| |
| key = ngx_array_push(&r->cache->keys); |
| if (key == NULL) { |
| return NGX_ERROR; |
| } |
| |
| if (plcf->proxy_lengths && ctx->vars.uri.len) { |
| |
| *key = ctx->vars.uri; |
| u->uri = ctx->vars.uri; |
| |
| return NGX_OK; |
| |
| } else if (ctx->vars.uri.len == 0 && r->valid_unparsed_uri) { |
| *key = r->unparsed_uri; |
| u->uri = r->unparsed_uri; |
| |
| return NGX_OK; |
| } |
| |
| loc_len = (r->valid_location && ctx->vars.uri.len) ? plcf->location.len : 0; |
| |
| if (r->quoted_uri || r->internal) { |
| escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len, |
| r->uri.len - loc_len, NGX_ESCAPE_URI); |
| } else { |
| escape = 0; |
| } |
| |
| len = ctx->vars.uri.len + r->uri.len - loc_len + escape |
| + sizeof("?") - 1 + r->args.len; |
| |
| p = ngx_pnalloc(r->pool, len); |
| if (p == NULL) { |
| return NGX_ERROR; |
| } |
| |
| key->data = p; |
| |
| if (r->valid_location) { |
| p = ngx_copy(p, ctx->vars.uri.data, ctx->vars.uri.len); |
| } |
| |
| if (escape) { |
| ngx_escape_uri(p, r->uri.data + loc_len, |
| r->uri.len - loc_len, NGX_ESCAPE_URI); |
| p += r->uri.len - loc_len + escape; |
| |
| } else { |
| p = ngx_copy(p, r->uri.data + loc_len, r->uri.len - loc_len); |
| } |
| |
| if (r->args.len > 0) { |
| *p++ = '?'; |
| p = ngx_copy(p, r->args.data, r->args.len); |
| } |
| |
| key->len = p - key->data; |
| u->uri = *key; |
| |
| return NGX_OK; |
| } |
| |
| #endif |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_create_request(ngx_http_request_t *r) |
| { |
| size_t len, uri_len, loc_len, body_len, |
| key_len, val_len; |
| uintptr_t escape; |
| ngx_buf_t *b; |
| ngx_str_t method; |
| ngx_uint_t i, unparsed_uri; |
| ngx_chain_t *cl, *body; |
| ngx_list_part_t *part; |
| ngx_table_elt_t *header; |
| ngx_http_upstream_t *u; |
| ngx_http_proxy_ctx_t *ctx; |
| ngx_http_script_code_pt code; |
| ngx_http_proxy_headers_t *headers; |
| ngx_http_script_engine_t e, le; |
| ngx_http_proxy_loc_conf_t *plcf; |
| ngx_http_script_len_code_pt lcode; |
| |
| u = r->upstream; |
| |
| plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module); |
| |
| #if (NGX_HTTP_CACHE) |
| headers = u->cacheable ? &plcf->headers_cache : &plcf->headers; |
| #else |
| headers = &plcf->headers; |
| #endif |
| |
| if (u->method.len) { |
| /* HEAD was changed to GET to cache response */ |
| method = u->method; |
| |
| } else if (plcf->method) { |
| if (ngx_http_complex_value(r, plcf->method, &method) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| } else { |
| method = r->method_name; |
| } |
| |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| if (method.len == 4 |
| && ngx_strncasecmp(method.data, (u_char *) "HEAD", 4) == 0) |
| { |
| ctx->head = 1; |
| } |
| |
| len = method.len + 1 + sizeof(ngx_http_proxy_version) - 1 |
| + sizeof(CRLF) - 1; |
| |
| escape = 0; |
| loc_len = 0; |
| unparsed_uri = 0; |
| |
| if (plcf->proxy_lengths && ctx->vars.uri.len) { |
| uri_len = ctx->vars.uri.len; |
| |
| } else if (ctx->vars.uri.len == 0 && r->valid_unparsed_uri) { |
| unparsed_uri = 1; |
| uri_len = r->unparsed_uri.len; |
| |
| } else { |
| loc_len = (r->valid_location && ctx->vars.uri.len) ? |
| plcf->location.len : 0; |
| |
| if (r->quoted_uri || r->internal) { |
| escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len, |
| r->uri.len - loc_len, NGX_ESCAPE_URI); |
| } |
| |
| uri_len = ctx->vars.uri.len + r->uri.len - loc_len + escape |
| + sizeof("?") - 1 + r->args.len; |
| } |
| |
| if (uri_len == 0) { |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "zero length URI to proxy"); |
| return NGX_ERROR; |
| } |
| |
| len += uri_len; |
| |
| ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); |
| |
| ngx_http_script_flush_no_cacheable_variables(r, plcf->body_flushes); |
| ngx_http_script_flush_no_cacheable_variables(r, headers->flushes); |
| |
| if (plcf->body_lengths) { |
| le.ip = plcf->body_lengths->elts; |
| le.request = r; |
| le.flushed = 1; |
| body_len = 0; |
| |
| while (*(uintptr_t *) le.ip) { |
| lcode = *(ngx_http_script_len_code_pt *) le.ip; |
| body_len += lcode(&le); |
| } |
| |
| ctx->internal_body_length = body_len; |
| len += body_len; |
| |
| } else if (r->headers_in.chunked && r->reading_body) { |
| ctx->internal_body_length = -1; |
| ctx->internal_chunked = 1; |
| |
| } else { |
| ctx->internal_body_length = r->headers_in.content_length_n; |
| } |
| |
| le.ip = headers->lengths->elts; |
| le.request = r; |
| le.flushed = 1; |
| |
| while (*(uintptr_t *) le.ip) { |
| |
| lcode = *(ngx_http_script_len_code_pt *) le.ip; |
| key_len = 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 (val_len == 0) { |
| continue; |
| } |
| |
| len += key_len + sizeof(": ") - 1 + val_len + sizeof(CRLF) - 1; |
| } |
| |
| |
| if (plcf->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; |
| } |
| |
| if (ngx_hash_find(&headers->hash, header[i].hash, |
| header[i].lowcase_key, header[i].key.len)) |
| { |
| continue; |
| } |
| |
| len += header[i].key.len + sizeof(": ") - 1 |
| + header[i].value.len + sizeof(CRLF) - 1; |
| } |
| } |
| |
| |
| b = ngx_create_temp_buf(r->pool, len); |
| if (b == NULL) { |
| return NGX_ERROR; |
| } |
| |
| cl = ngx_alloc_chain_link(r->pool); |
| if (cl == NULL) { |
| return NGX_ERROR; |
| } |
| |
| cl->buf = b; |
| |
| |
| /* the request line */ |
| |
| b->last = ngx_copy(b->last, method.data, method.len); |
| *b->last++ = ' '; |
| |
| u->uri.data = b->last; |
| |
| if (plcf->proxy_lengths && ctx->vars.uri.len) { |
| b->last = ngx_copy(b->last, ctx->vars.uri.data, ctx->vars.uri.len); |
| |
| } else if (unparsed_uri) { |
| b->last = ngx_copy(b->last, r->unparsed_uri.data, r->unparsed_uri.len); |
| |
| } else { |
| if (r->valid_location) { |
| b->last = ngx_copy(b->last, ctx->vars.uri.data, ctx->vars.uri.len); |
| } |
| |
| if (escape) { |
| ngx_escape_uri(b->last, r->uri.data + loc_len, |
| r->uri.len - loc_len, NGX_ESCAPE_URI); |
| b->last += r->uri.len - loc_len + escape; |
| |
| } else { |
| b->last = ngx_copy(b->last, r->uri.data + loc_len, |
| r->uri.len - loc_len); |
| } |
| |
| if (r->args.len > 0) { |
| *b->last++ = '?'; |
| b->last = ngx_copy(b->last, r->args.data, r->args.len); |
| } |
| } |
| |
| u->uri.len = b->last - u->uri.data; |
| |
| if (plcf->http_version == NGX_HTTP_VERSION_11) { |
| b->last = ngx_cpymem(b->last, ngx_http_proxy_version_11, |
| sizeof(ngx_http_proxy_version_11) - 1); |
| |
| } else { |
| b->last = ngx_cpymem(b->last, ngx_http_proxy_version, |
| sizeof(ngx_http_proxy_version) - 1); |
| } |
| |
| ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); |
| |
| e.ip = headers->values->elts; |
| e.pos = b->last; |
| e.request = r; |
| e.flushed = 1; |
| |
| le.ip = headers->lengths->elts; |
| |
| while (*(uintptr_t *) le.ip) { |
| |
| lcode = *(ngx_http_script_len_code_pt *) le.ip; |
| (void) 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 (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; |
| } |
| |
| code = *(ngx_http_script_code_pt *) e.ip; |
| code((ngx_http_script_engine_t *) &e); |
| |
| *e.pos++ = ':'; *e.pos++ = ' '; |
| |
| 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.pos++ = CR; *e.pos++ = LF; |
| } |
| |
| b->last = e.pos; |
| |
| |
| if (plcf->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; |
| } |
| |
| if (ngx_hash_find(&headers->hash, header[i].hash, |
| header[i].lowcase_key, header[i].key.len)) |
| { |
| continue; |
| } |
| |
| b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len); |
| |
| *b->last++ = ':'; *b->last++ = ' '; |
| |
| b->last = ngx_copy(b->last, header[i].value.data, |
| header[i].value.len); |
| |
| *b->last++ = CR; *b->last++ = LF; |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http proxy header: \"%V: %V\"", |
| &header[i].key, &header[i].value); |
| } |
| } |
| |
| |
| /* add "\r\n" at the header end */ |
| *b->last++ = CR; *b->last++ = LF; |
| |
| if (plcf->body_values) { |
| e.ip = plcf->body_values->elts; |
| e.pos = b->last; |
| e.skip = 0; |
| |
| while (*(uintptr_t *) e.ip) { |
| code = *(ngx_http_script_code_pt *) e.ip; |
| code((ngx_http_script_engine_t *) &e); |
| } |
| |
| b->last = e.pos; |
| } |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http proxy header:%N\"%*s\"", |
| (size_t) (b->last - b->pos), b->pos); |
| |
| if (r->request_body_no_buffering) { |
| |
| u->request_bufs = cl; |
| |
| if (ctx->internal_chunked) { |
| u->output.output_filter = ngx_http_proxy_body_output_filter; |
| u->output.filter_ctx = r; |
| } |
| |
| } else if (plcf->body_values == NULL && plcf->upstream.pass_request_body) { |
| |
| body = u->request_bufs; |
| u->request_bufs = cl; |
| |
| while (body) { |
| b = ngx_alloc_buf(r->pool); |
| if (b == NULL) { |
| return NGX_ERROR; |
| } |
| |
| ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); |
| |
| cl->next = ngx_alloc_chain_link(r->pool); |
| if (cl->next == NULL) { |
| return NGX_ERROR; |
| } |
| |
| cl = cl->next; |
| cl->buf = b; |
| |
| body = body->next; |
| } |
| |
| } else { |
| u->request_bufs = cl; |
| } |
| |
| b->flush = 1; |
| cl->next = NULL; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_reinit_request(ngx_http_request_t *r) |
| { |
| ngx_http_proxy_ctx_t *ctx; |
| |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| if (ctx == NULL) { |
| return NGX_OK; |
| } |
| |
| ctx->status.code = 0; |
| ctx->status.count = 0; |
| ctx->status.start = NULL; |
| ctx->status.end = NULL; |
| ctx->chunked.state = 0; |
| |
| r->upstream->process_header = ngx_http_proxy_process_status_line; |
| r->upstream->pipe->input_filter = ngx_http_proxy_copy_filter; |
| r->upstream->input_filter = ngx_http_proxy_non_buffered_copy_filter; |
| r->state = 0; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_body_output_filter(void *data, ngx_chain_t *in) |
| { |
| ngx_http_request_t *r = data; |
| |
| off_t size; |
| u_char *chunk; |
| ngx_int_t rc; |
| ngx_buf_t *b; |
| ngx_chain_t *out, *cl, *tl, **ll, **fl; |
| ngx_http_proxy_ctx_t *ctx; |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "proxy output filter"); |
| |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| if (in == NULL) { |
| out = in; |
| goto out; |
| } |
| |
| out = NULL; |
| ll = &out; |
| |
| if (!ctx->header_sent) { |
| /* first buffer contains headers, pass it unmodified */ |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "proxy output header"); |
| |
| ctx->header_sent = 1; |
| |
| tl = ngx_alloc_chain_link(r->pool); |
| if (tl == NULL) { |
| return NGX_ERROR; |
| } |
| |
| tl->buf = in->buf; |
| *ll = tl; |
| ll = &tl->next; |
| |
| in = in->next; |
| |
| if (in == NULL) { |
| tl->next = NULL; |
| goto out; |
| } |
| } |
| |
| size = 0; |
| cl = in; |
| fl = ll; |
| |
| for ( ;; ) { |
| ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "proxy output chunk: %O", ngx_buf_size(cl->buf)); |
| |
| size += ngx_buf_size(cl->buf); |
| |
| if (cl->buf->flush |
| || cl->buf->sync |
| || ngx_buf_in_memory(cl->buf) |
| || cl->buf->in_file) |
| { |
| tl = ngx_alloc_chain_link(r->pool); |
| if (tl == NULL) { |
| return NGX_ERROR; |
| } |
| |
| tl->buf = cl->buf; |
| *ll = tl; |
| ll = &tl->next; |
| } |
| |
| if (cl->next == NULL) { |
| break; |
| } |
| |
| cl = cl->next; |
| } |
| |
| if (size) { |
| tl = ngx_chain_get_free_buf(r->pool, &ctx->free); |
| if (tl == NULL) { |
| return NGX_ERROR; |
| } |
| |
| b = tl->buf; |
| chunk = b->start; |
| |
| if (chunk == NULL) { |
| /* the "0000000000000000" is 64-bit hexadecimal string */ |
| |
| chunk = ngx_palloc(r->pool, sizeof("0000000000000000" CRLF) - 1); |
| if (chunk == NULL) { |
| return NGX_ERROR; |
| } |
| |
| b->start = chunk; |
| b->end = chunk + sizeof("0000000000000000" CRLF) - 1; |
| } |
| |
| b->tag = (ngx_buf_tag_t) &ngx_http_proxy_body_output_filter; |
| b->memory = 0; |
| b->temporary = 1; |
| b->pos = chunk; |
| b->last = ngx_sprintf(chunk, "%xO" CRLF, size); |
| |
| tl->next = *fl; |
| *fl = tl; |
| } |
| |
| if (cl->buf->last_buf) { |
| tl = ngx_chain_get_free_buf(r->pool, &ctx->free); |
| if (tl == NULL) { |
| return NGX_ERROR; |
| } |
| |
| b = tl->buf; |
| |
| b->tag = (ngx_buf_tag_t) &ngx_http_proxy_body_output_filter; |
| b->temporary = 0; |
| b->memory = 1; |
| b->last_buf = 1; |
| b->pos = (u_char *) CRLF "0" CRLF CRLF; |
| b->last = b->pos + 7; |
| |
| cl->buf->last_buf = 0; |
| |
| *ll = tl; |
| |
| if (size == 0) { |
| b->pos += 2; |
| } |
| |
| } else if (size > 0) { |
| tl = ngx_chain_get_free_buf(r->pool, &ctx->free); |
| if (tl == NULL) { |
| return NGX_ERROR; |
| } |
| |
| b = tl->buf; |
| |
| b->tag = (ngx_buf_tag_t) &ngx_http_proxy_body_output_filter; |
| b->temporary = 0; |
| b->memory = 1; |
| b->pos = (u_char *) CRLF; |
| b->last = b->pos + 2; |
| |
| *ll = tl; |
| |
| } else { |
| *ll = NULL; |
| } |
| |
| out: |
| |
| rc = ngx_chain_writer(&r->upstream->writer, out); |
| |
| ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out, |
| (ngx_buf_tag_t) &ngx_http_proxy_body_output_filter); |
| |
| return rc; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_process_status_line(ngx_http_request_t *r) |
| { |
| size_t len; |
| ngx_int_t rc; |
| ngx_http_upstream_t *u; |
| ngx_http_proxy_ctx_t *ctx; |
| |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| if (ctx == NULL) { |
| return NGX_ERROR; |
| } |
| |
| u = r->upstream; |
| |
| rc = ngx_http_parse_status_line(r, &u->buffer, &ctx->status); |
| |
| if (rc == NGX_AGAIN) { |
| return rc; |
| } |
| |
| if (rc == NGX_ERROR) { |
| |
| #if (NGX_HTTP_CACHE) |
| |
| if (r->cache) { |
| r->http_version = NGX_HTTP_VERSION_9; |
| return NGX_OK; |
| } |
| |
| #endif |
| |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "upstream sent no valid HTTP/1.0 header"); |
| |
| #if 0 |
| if (u->accel) { |
| return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
| } |
| #endif |
| |
| r->http_version = NGX_HTTP_VERSION_9; |
| u->state->status = NGX_HTTP_OK; |
| u->headers_in.connection_close = 1; |
| |
| return NGX_OK; |
| } |
| |
| if (u->state && u->state->status == 0) { |
| u->state->status = ctx->status.code; |
| } |
| |
| u->headers_in.status_n = ctx->status.code; |
| |
| len = ctx->status.end - ctx->status.start; |
| u->headers_in.status_line.len = len; |
| |
| u->headers_in.status_line.data = ngx_pnalloc(r->pool, len); |
| if (u->headers_in.status_line.data == NULL) { |
| return NGX_ERROR; |
| } |
| |
| ngx_memcpy(u->headers_in.status_line.data, ctx->status.start, len); |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http proxy status %ui \"%V\"", |
| u->headers_in.status_n, &u->headers_in.status_line); |
| |
| if (ctx->status.http_version < NGX_HTTP_VERSION_11) { |
| u->headers_in.connection_close = 1; |
| } |
| |
| u->process_header = ngx_http_proxy_process_header; |
| |
| return ngx_http_proxy_process_header(r); |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_process_header(ngx_http_request_t *r) |
| { |
| ngx_int_t rc; |
| ngx_table_elt_t *h; |
| ngx_http_upstream_t *u; |
| ngx_http_proxy_ctx_t *ctx; |
| ngx_http_upstream_header_t *hh; |
| ngx_http_upstream_main_conf_t *umcf; |
| |
| umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); |
| |
| for ( ;; ) { |
| |
| rc = ngx_http_parse_header_line(r, &r->upstream->buffer, 1); |
| |
| if (rc == NGX_OK) { |
| |
| /* a header line has been parsed successfully */ |
| |
| h = ngx_list_push(&r->upstream->headers_in.headers); |
| if (h == NULL) { |
| return NGX_ERROR; |
| } |
| |
| h->hash = r->header_hash; |
| |
| 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) { |
| h->hash = 0; |
| 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_memcpy(h->key.data, r->header_name_start, h->key.len); |
| h->key.data[h->key.len] = '\0'; |
| ngx_memcpy(h->value.data, r->header_start, h->value.len); |
| h->value.data[h->value.len] = '\0'; |
| |
| 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 proxy header: \"%V: %V\"", |
| &h->key, &h->value); |
| |
| continue; |
| } |
| |
| 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 proxy header done"); |
| |
| /* |
| * if no "Server" and "Date" in header line, |
| * then add the special empty headers |
| */ |
| |
| if (r->upstream->headers_in.server == NULL) { |
| h = ngx_list_push(&r->upstream->headers_in.headers); |
| if (h == NULL) { |
| return NGX_ERROR; |
| } |
| |
| h->hash = ngx_hash(ngx_hash(ngx_hash(ngx_hash( |
| ngx_hash('s', 'e'), 'r'), 'v'), 'e'), 'r'); |
| |
| ngx_str_set(&h->key, "Server"); |
| ngx_str_null(&h->value); |
| h->lowcase_key = (u_char *) "server"; |
| } |
| |
| if (r->upstream->headers_in.date == NULL) { |
| h = ngx_list_push(&r->upstream->headers_in.headers); |
| if (h == NULL) { |
| return NGX_ERROR; |
| } |
| |
| h->hash = ngx_hash(ngx_hash(ngx_hash('d', 'a'), 't'), 'e'); |
| |
| ngx_str_set(&h->key, "Date"); |
| ngx_str_null(&h->value); |
| h->lowcase_key = (u_char *) "date"; |
| } |
| |
| /* clear content length if response is chunked */ |
| |
| u = r->upstream; |
| |
| if (u->headers_in.chunked) { |
| u->headers_in.content_length_n = -1; |
| } |
| |
| /* |
| * set u->keepalive if response has no body; this allows to keep |
| * connections alive in case of r->header_only or X-Accel-Redirect |
| */ |
| |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| if (u->headers_in.status_n == NGX_HTTP_NO_CONTENT |
| || u->headers_in.status_n == NGX_HTTP_NOT_MODIFIED |
| || ctx->head |
| || (!u->headers_in.chunked |
| && u->headers_in.content_length_n == 0)) |
| { |
| u->keepalive = !u->headers_in.connection_close; |
| } |
| |
| if (u->headers_in.status_n == NGX_HTTP_SWITCHING_PROTOCOLS) { |
| u->keepalive = 0; |
| |
| if (r->headers_in.upgrade) { |
| u->upgrade = 1; |
| } |
| } |
| |
| return NGX_OK; |
| } |
| |
| if (rc == NGX_AGAIN) { |
| return NGX_AGAIN; |
| } |
| |
| /* rc == NGX_HTTP_PARSE_INVALID_HEADER */ |
| |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "upstream sent invalid header: \"%*s\\x%02xd...\"", |
| r->header_end - r->header_name_start, |
| r->header_name_start, *r->header_end); |
| |
| return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
| } |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_input_filter_init(void *data) |
| { |
| ngx_http_request_t *r = data; |
| ngx_http_upstream_t *u; |
| ngx_http_proxy_ctx_t *ctx; |
| |
| u = r->upstream; |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| if (ctx == NULL) { |
| return NGX_ERROR; |
| } |
| |
| ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http proxy filter init s:%ui h:%d c:%d l:%O", |
| u->headers_in.status_n, ctx->head, u->headers_in.chunked, |
| u->headers_in.content_length_n); |
| |
| /* as per RFC2616, 4.4 Message Length */ |
| |
| if (u->headers_in.status_n == NGX_HTTP_NO_CONTENT |
| || u->headers_in.status_n == NGX_HTTP_NOT_MODIFIED |
| || ctx->head) |
| { |
| /* 1xx, 204, and 304 and replies to HEAD requests */ |
| /* no 1xx since we don't send Expect and Upgrade */ |
| |
| u->pipe->length = 0; |
| u->length = 0; |
| u->keepalive = !u->headers_in.connection_close; |
| |
| } else if (u->headers_in.chunked) { |
| /* chunked */ |
| |
| u->pipe->input_filter = ngx_http_proxy_chunked_filter; |
| u->pipe->length = 3; /* "0" LF LF */ |
| |
| u->input_filter = ngx_http_proxy_non_buffered_chunked_filter; |
| u->length = 1; |
| |
| } else if (u->headers_in.content_length_n == 0) { |
| /* empty body: special case as filter won't be called */ |
| |
| u->pipe->length = 0; |
| u->length = 0; |
| u->keepalive = !u->headers_in.connection_close; |
| |
| } else { |
| /* content length or connection close */ |
| |
| u->pipe->length = u->headers_in.content_length_n; |
| u->length = u->headers_in.content_length_n; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_copy_filter(ngx_event_pipe_t *p, ngx_buf_t *buf) |
| { |
| ngx_buf_t *b; |
| ngx_chain_t *cl; |
| ngx_http_request_t *r; |
| |
| if (buf->pos == buf->last) { |
| return NGX_OK; |
| } |
| |
| if (p->upstream_done) { |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, p->log, 0, |
| "http proxy data after close"); |
| return NGX_OK; |
| } |
| |
| if (p->length == 0) { |
| |
| ngx_log_error(NGX_LOG_WARN, p->log, 0, |
| "upstream sent more data than specified in " |
| "\"Content-Length\" header"); |
| |
| r = p->input_ctx; |
| r->upstream->keepalive = 0; |
| p->upstream_done = 1; |
| |
| return NGX_OK; |
| } |
| |
| cl = ngx_chain_get_free_buf(p->pool, &p->free); |
| if (cl == NULL) { |
| return NGX_ERROR; |
| } |
| |
| b = cl->buf; |
| |
| ngx_memcpy(b, buf, sizeof(ngx_buf_t)); |
| b->shadow = buf; |
| b->tag = p->tag; |
| b->last_shadow = 1; |
| b->recycled = 1; |
| buf->shadow = b; |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_EVENT, p->log, 0, "input buf #%d", b->num); |
| |
| if (p->in) { |
| *p->last_in = cl; |
| } else { |
| p->in = cl; |
| } |
| p->last_in = &cl->next; |
| |
| if (p->length == -1) { |
| return NGX_OK; |
| } |
| |
| if (b->last - b->pos > p->length) { |
| |
| ngx_log_error(NGX_LOG_WARN, p->log, 0, |
| "upstream sent more data than specified in " |
| "\"Content-Length\" header"); |
| |
| b->last = b->pos + p->length; |
| p->upstream_done = 1; |
| |
| return NGX_OK; |
| } |
| |
| p->length -= b->last - b->pos; |
| |
| if (p->length == 0) { |
| r = p->input_ctx; |
| r->upstream->keepalive = !r->upstream->headers_in.connection_close; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_chunked_filter(ngx_event_pipe_t *p, ngx_buf_t *buf) |
| { |
| ngx_int_t rc; |
| ngx_buf_t *b, **prev; |
| ngx_chain_t *cl; |
| ngx_http_request_t *r; |
| ngx_http_proxy_ctx_t *ctx; |
| |
| if (buf->pos == buf->last) { |
| return NGX_OK; |
| } |
| |
| r = p->input_ctx; |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| if (ctx == NULL) { |
| return NGX_ERROR; |
| } |
| |
| if (p->upstream_done) { |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, p->log, 0, |
| "http proxy data after close"); |
| return NGX_OK; |
| } |
| |
| if (p->length == 0) { |
| |
| ngx_log_error(NGX_LOG_WARN, p->log, 0, |
| "upstream sent data after final chunk"); |
| |
| r->upstream->keepalive = 0; |
| p->upstream_done = 1; |
| |
| return NGX_OK; |
| } |
| |
| b = NULL; |
| prev = &buf->shadow; |
| |
| for ( ;; ) { |
| |
| rc = ngx_http_parse_chunked(r, buf, &ctx->chunked); |
| |
| if (rc == NGX_OK) { |
| |
| /* a chunk has been parsed successfully */ |
| |
| cl = ngx_chain_get_free_buf(p->pool, &p->free); |
| if (cl == NULL) { |
| return NGX_ERROR; |
| } |
| |
| b = cl->buf; |
| |
| ngx_memzero(b, sizeof(ngx_buf_t)); |
| |
| b->pos = buf->pos; |
| b->start = buf->start; |
| b->end = buf->end; |
| b->tag = p->tag; |
| b->temporary = 1; |
| b->recycled = 1; |
| |
| *prev = b; |
| prev = &b->shadow; |
| |
| 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 (buf->last - buf->pos >= ctx->chunked.size) { |
| |
| buf->pos += (size_t) ctx->chunked.size; |
| b->last = buf->pos; |
| ctx->chunked.size = 0; |
| |
| continue; |
| } |
| |
| ctx->chunked.size -= buf->last - buf->pos; |
| buf->pos = buf->last; |
| b->last = buf->last; |
| |
| continue; |
| } |
| |
| if (rc == NGX_DONE) { |
| |
| /* a whole response has been parsed successfully */ |
| |
| p->length = 0; |
| r->upstream->keepalive = !r->upstream->headers_in.connection_close; |
| |
| if (buf->pos != buf->last) { |
| ngx_log_error(NGX_LOG_WARN, p->log, 0, |
| "upstream sent data after final chunk"); |
| r->upstream->keepalive = 0; |
| } |
| |
| break; |
| } |
| |
| if (rc == NGX_AGAIN) { |
| |
| /* set p->length, minimal amount of data we want to see */ |
| |
| p->length = ctx->chunked.length; |
| |
| break; |
| } |
| |
| /* invalid response */ |
| |
| ngx_log_error(NGX_LOG_ERR, p->log, 0, |
| "upstream sent invalid chunked response"); |
| |
| return NGX_ERROR; |
| } |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_HTTP, p->log, 0, |
| "http proxy chunked state %ui, length %O", |
| ctx->chunked.state, p->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_proxy_non_buffered_copy_filter(void *data, ssize_t bytes) |
| { |
| ngx_http_request_t *r = data; |
| |
| ngx_buf_t *b; |
| ngx_chain_t *cl, **ll; |
| ngx_http_upstream_t *u; |
| |
| u = r->upstream; |
| |
| if (u->length == 0) { |
| ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, |
| "upstream sent more data than specified in " |
| "\"Content-Length\" header"); |
| u->keepalive = 0; |
| return NGX_OK; |
| } |
| |
| for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { |
| ll = &cl->next; |
| } |
| |
| cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); |
| if (cl == NULL) { |
| return NGX_ERROR; |
| } |
| |
| *ll = cl; |
| |
| cl->buf->flush = 1; |
| cl->buf->memory = 1; |
| |
| b = &u->buffer; |
| |
| cl->buf->pos = b->last; |
| b->last += bytes; |
| cl->buf->last = b->last; |
| cl->buf->tag = u->output.tag; |
| |
| if (u->length == -1) { |
| return NGX_OK; |
| } |
| |
| if (bytes > u->length) { |
| |
| ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, |
| "upstream sent more data than specified in " |
| "\"Content-Length\" header"); |
| |
| cl->buf->last = cl->buf->pos + u->length; |
| u->length = 0; |
| |
| return NGX_OK; |
| } |
| |
| u->length -= bytes; |
| |
| if (u->length == 0) { |
| u->keepalive = !u->headers_in.connection_close; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_non_buffered_chunked_filter(void *data, ssize_t bytes) |
| { |
| ngx_http_request_t *r = data; |
| |
| ngx_int_t rc; |
| ngx_buf_t *b, *buf; |
| ngx_chain_t *cl, **ll; |
| ngx_http_upstream_t *u; |
| ngx_http_proxy_ctx_t *ctx; |
| |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| if (ctx == NULL) { |
| return NGX_ERROR; |
| } |
| |
| u = r->upstream; |
| buf = &u->buffer; |
| |
| buf->pos = buf->last; |
| buf->last += bytes; |
| |
| for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { |
| ll = &cl->next; |
| } |
| |
| for ( ;; ) { |
| |
| rc = ngx_http_parse_chunked(r, buf, &ctx->chunked); |
| |
| if (rc == NGX_OK) { |
| |
| /* a chunk has been parsed successfully */ |
| |
| cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); |
| if (cl == NULL) { |
| return NGX_ERROR; |
| } |
| |
| *ll = cl; |
| ll = &cl->next; |
| |
| b = cl->buf; |
| |
| b->flush = 1; |
| b->memory = 1; |
| |
| b->pos = buf->pos; |
| b->tag = u->output.tag; |
| |
| if (buf->last - buf->pos >= ctx->chunked.size) { |
| buf->pos += (size_t) ctx->chunked.size; |
| b->last = buf->pos; |
| ctx->chunked.size = 0; |
| |
| } else { |
| ctx->chunked.size -= buf->last - buf->pos; |
| buf->pos = buf->last; |
| b->last = buf->last; |
| } |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http proxy out buf %p %z", |
| b->pos, b->last - b->pos); |
| |
| continue; |
| } |
| |
| if (rc == NGX_DONE) { |
| |
| /* a whole response has been parsed successfully */ |
| |
| u->keepalive = !u->headers_in.connection_close; |
| u->length = 0; |
| |
| if (buf->pos != buf->last) { |
| ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, |
| "upstream sent data after final chunk"); |
| u->keepalive = 0; |
| } |
| |
| break; |
| } |
| |
| if (rc == NGX_AGAIN) { |
| break; |
| } |
| |
| /* invalid response */ |
| |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "upstream sent invalid chunked response"); |
| |
| return NGX_ERROR; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| static void |
| ngx_http_proxy_abort_request(ngx_http_request_t *r) |
| { |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "abort http proxy request"); |
| |
| return; |
| } |
| |
| |
| static void |
| ngx_http_proxy_finalize_request(ngx_http_request_t *r, ngx_int_t rc) |
| { |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "finalize http proxy request"); |
| |
| return; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_host_variable(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data) |
| { |
| ngx_http_proxy_ctx_t *ctx; |
| |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| if (ctx == NULL) { |
| v->not_found = 1; |
| return NGX_OK; |
| } |
| |
| v->len = ctx->vars.host_header.len; |
| v->valid = 1; |
| v->no_cacheable = 0; |
| v->not_found = 0; |
| v->data = ctx->vars.host_header.data; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_port_variable(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data) |
| { |
| ngx_http_proxy_ctx_t *ctx; |
| |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| if (ctx == NULL) { |
| v->not_found = 1; |
| return NGX_OK; |
| } |
| |
| v->len = ctx->vars.port.len; |
| v->valid = 1; |
| v->no_cacheable = 0; |
| v->not_found = 0; |
| v->data = ctx->vars.port.data; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data) |
| { |
| size_t len; |
| u_char *p; |
| ngx_uint_t i, n; |
| ngx_table_elt_t **h; |
| |
| v->valid = 1; |
| v->no_cacheable = 0; |
| v->not_found = 0; |
| |
| n = r->headers_in.x_forwarded_for.nelts; |
| h = r->headers_in.x_forwarded_for.elts; |
| |
| len = 0; |
| |
| for (i = 0; i < n; i++) { |
| len += h[i]->value.len + sizeof(", ") - 1; |
| } |
| |
| if (len == 0) { |
| v->len = r->connection->addr_text.len; |
| v->data = r->connection->addr_text.data; |
| return NGX_OK; |
| } |
| |
| len += r->connection->addr_text.len; |
| |
| p = ngx_pnalloc(r->pool, len); |
| if (p == NULL) { |
| return NGX_ERROR; |
| } |
| |
| v->len = len; |
| v->data = p; |
| |
| for (i = 0; i < n; i++) { |
| p = ngx_copy(p, h[i]->value.data, h[i]->value.len); |
| *p++ = ','; *p++ = ' '; |
| } |
| |
| ngx_memcpy(p, r->connection->addr_text.data, r->connection->addr_text.len); |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_internal_body_length_variable(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data) |
| { |
| ngx_http_proxy_ctx_t *ctx; |
| |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| if (ctx == NULL || ctx->internal_body_length < 0) { |
| v->not_found = 1; |
| return NGX_OK; |
| } |
| |
| v->valid = 1; |
| v->no_cacheable = 0; |
| v->not_found = 0; |
| |
| v->data = ngx_pnalloc(r->pool, NGX_OFF_T_LEN); |
| |
| if (v->data == NULL) { |
| return NGX_ERROR; |
| } |
| |
| v->len = ngx_sprintf(v->data, "%O", ctx->internal_body_length) - v->data; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_internal_chunked_variable(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data) |
| { |
| ngx_http_proxy_ctx_t *ctx; |
| |
| ctx = ngx_http_get_module_ctx(r, ngx_http_proxy_module); |
| |
| if (ctx == NULL || !ctx->internal_chunked) { |
| v->not_found = 1; |
| return NGX_OK; |
| } |
| |
| v->valid = 1; |
| v->no_cacheable = 0; |
| v->not_found = 0; |
| |
| v->data = (u_char *) "chunked"; |
| v->len = sizeof("chunked") - 1; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r, ngx_table_elt_t *h, |
| size_t prefix) |
| { |
| size_t len; |
| ngx_int_t rc; |
| ngx_uint_t i; |
| ngx_http_proxy_rewrite_t *pr; |
| ngx_http_proxy_loc_conf_t *plcf; |
| |
| plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module); |
| |
| pr = plcf->redirects->elts; |
| |
| if (pr == NULL) { |
| return NGX_DECLINED; |
| } |
| |
| len = h->value.len - prefix; |
| |
| for (i = 0; i < plcf->redirects->nelts; i++) { |
| rc = pr[i].handler(r, &h->value, prefix, len, &pr[i]); |
| |
| if (rc != NGX_DECLINED) { |
| return rc; |
| } |
| } |
| |
| return NGX_DECLINED; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_rewrite_cookie(ngx_http_request_t *r, ngx_table_elt_t *h) |
| { |
| u_char *p; |
| size_t len; |
| ngx_int_t rc, rv; |
| ngx_str_t *key, *value; |
| ngx_uint_t i; |
| ngx_array_t attrs; |
| ngx_keyval_t *attr; |
| ngx_http_proxy_loc_conf_t *plcf; |
| |
| if (ngx_array_init(&attrs, r->pool, 2, sizeof(ngx_keyval_t)) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| if (ngx_http_proxy_parse_cookie(&h->value, &attrs) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| attr = attrs.elts; |
| |
| if (attr[0].value.data == NULL) { |
| return NGX_DECLINED; |
| } |
| |
| rv = NGX_DECLINED; |
| |
| plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module); |
| |
| for (i = 1; i < attrs.nelts; i++) { |
| |
| key = &attr[i].key; |
| value = &attr[i].value; |
| |
| if (plcf->cookie_domains && key->len == 6 |
| && ngx_strncasecmp(key->data, (u_char *) "domain", 6) == 0 |
| && value->data) |
| { |
| rc = ngx_http_proxy_rewrite_cookie_value(r, value, |
| plcf->cookie_domains); |
| if (rc == NGX_ERROR) { |
| return NGX_ERROR; |
| } |
| |
| if (rc != NGX_DECLINED) { |
| rv = rc; |
| } |
| } |
| |
| if (plcf->cookie_paths && key->len == 4 |
| && ngx_strncasecmp(key->data, (u_char *) "path", 4) == 0 |
| && value->data) |
| { |
| rc = ngx_http_proxy_rewrite_cookie_value(r, value, |
| plcf->cookie_paths); |
| if (rc == NGX_ERROR) { |
| return NGX_ERROR; |
| } |
| |
| if (rc != NGX_DECLINED) { |
| rv = rc; |
| } |
| } |
| } |
| |
| if (plcf->cookie_flags) { |
| rc = ngx_http_proxy_rewrite_cookie_flags(r, &attrs, |
| plcf->cookie_flags); |
| if (rc == NGX_ERROR) { |
| return NGX_ERROR; |
| } |
| |
| if (rc != NGX_DECLINED) { |
| rv = rc; |
| } |
| |
| attr = attrs.elts; |
| } |
| |
| if (rv != NGX_OK) { |
| return rv; |
| } |
| |
| len = 0; |
| |
| for (i = 0; i < attrs.nelts; i++) { |
| |
| if (attr[i].key.data == NULL) { |
| continue; |
| } |
| |
| if (i > 0) { |
| len += 2; |
| } |
| |
| len += attr[i].key.len; |
| |
| if (attr[i].value.data) { |
| len += 1 + attr[i].value.len; |
| } |
| } |
| |
| p = ngx_pnalloc(r->pool, len + 1); |
| if (p == NULL) { |
| return NGX_ERROR; |
| } |
| |
| h->value.data = p; |
| h->value.len = len; |
| |
| for (i = 0; i < attrs.nelts; i++) { |
| |
| if (attr[i].key.data == NULL) { |
| continue; |
| } |
| |
| if (i > 0) { |
| *p++ = ';'; |
| *p++ = ' '; |
| } |
| |
| p = ngx_cpymem(p, attr[i].key.data, attr[i].key.len); |
| |
| if (attr[i].value.data) { |
| *p++ = '='; |
| p = ngx_cpymem(p, attr[i].value.data, attr[i].value.len); |
| } |
| } |
| |
| *p = '\0'; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_parse_cookie(ngx_str_t *value, ngx_array_t *attrs) |
| { |
| u_char *start, *end, *p, *last; |
| ngx_str_t name, val; |
| ngx_keyval_t *attr; |
| |
| start = value->data; |
| end = value->data + value->len; |
| |
| for ( ;; ) { |
| |
| last = (u_char *) ngx_strchr(start, ';'); |
| |
| if (last == NULL) { |
| last = end; |
| } |
| |
| while (start < last && *start == ' ') { start++; } |
| |
| for (p = start; p < last && *p != '='; p++) { /* void */ } |
| |
| name.data = start; |
| name.len = p - start; |
| |
| while (name.len && name.data[name.len - 1] == ' ') { |
| name.len--; |
| } |
| |
| if (p < last) { |
| |
| p++; |
| |
| while (p < last && *p == ' ') { p++; } |
| |
| val.data = p; |
| val.len = last - val.data; |
| |
| while (val.len && val.data[val.len - 1] == ' ') { |
| val.len--; |
| } |
| |
| } else { |
| ngx_str_null(&val); |
| } |
| |
| attr = ngx_array_push(attrs); |
| if (attr == NULL) { |
| return NGX_ERROR; |
| } |
| |
| attr->key = name; |
| attr->value = val; |
| |
| if (last == end) { |
| break; |
| } |
| |
| start = last + 1; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_rewrite_cookie_value(ngx_http_request_t *r, ngx_str_t *value, |
| ngx_array_t *rewrites) |
| { |
| ngx_int_t rc; |
| ngx_uint_t i; |
| ngx_http_proxy_rewrite_t *pr; |
| |
| pr = rewrites->elts; |
| |
| for (i = 0; i < rewrites->nelts; i++) { |
| rc = pr[i].handler(r, value, 0, value->len, &pr[i]); |
| |
| if (rc != NGX_DECLINED) { |
| return rc; |
| } |
| } |
| |
| return NGX_DECLINED; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_rewrite_cookie_flags(ngx_http_request_t *r, ngx_array_t *attrs, |
| ngx_array_t *flags) |
| { |
| ngx_str_t pattern, value; |
| #if (NGX_PCRE) |
| ngx_int_t rc; |
| #endif |
| ngx_uint_t i, m, f, nelts; |
| ngx_keyval_t *attr; |
| ngx_conf_bitmask_t *mask; |
| ngx_http_complex_value_t *flags_values; |
| ngx_http_proxy_cookie_flags_t *pcf; |
| |
| attr = attrs->elts; |
| pcf = flags->elts; |
| |
| for (i = 0; i < flags->nelts; i++) { |
| |
| #if (NGX_PCRE) |
| if (pcf[i].regex) { |
| rc = ngx_http_regex_exec(r, pcf[i].cookie.regex, &attr[0].key); |
| |
| if (rc == NGX_ERROR) { |
| return NGX_ERROR; |
| } |
| |
| if (rc == NGX_OK) { |
| break; |
| } |
| |
| /* NGX_DECLINED */ |
| |
| continue; |
| } |
| #endif |
| |
| if (ngx_http_complex_value(r, &pcf[i].cookie.complex, &pattern) |
| != NGX_OK) |
| { |
| return NGX_ERROR; |
| } |
| |
| if (pattern.len == attr[0].key.len |
| && ngx_strncasecmp(attr[0].key.data, pattern.data, pattern.len) |
| == 0) |
| { |
| break; |
| } |
| } |
| |
| if (i == flags->nelts) { |
| return NGX_DECLINED; |
| } |
| |
| nelts = pcf[i].flags_values.nelts; |
| flags_values = pcf[i].flags_values.elts; |
| |
| mask = ngx_http_proxy_cookie_flags_masks; |
| f = 0; |
| |
| for (i = 0; i < nelts; i++) { |
| |
| if (ngx_http_complex_value(r, &flags_values[i], &value) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| if (value.len == 0) { |
| continue; |
| } |
| |
| for (m = 0; mask[m].name.len != 0; m++) { |
| |
| if (mask[m].name.len != value.len |
| || ngx_strncasecmp(mask[m].name.data, value.data, value.len) |
| != 0) |
| { |
| continue; |
| } |
| |
| f |= mask[m].mask; |
| |
| break; |
| } |
| |
| if (mask[m].name.len == 0) { |
| ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "invalid proxy_cookie_flags flag \"%V\"", &value); |
| } |
| } |
| |
| if (f == 0) { |
| return NGX_DECLINED; |
| } |
| |
| return ngx_http_proxy_edit_cookie_flags(r, attrs, f); |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_proxy_edit_cookie_flags(ngx_http_request_t *r, ngx_array_t *attrs, |
|
