diff options
Diffstat (limited to 'app/nginx/src/http/ngx_http_header_filter_module.c')
-rw-r--r-- | app/nginx/src/http/ngx_http_header_filter_module.c | 629 |
1 files changed, 0 insertions, 629 deletions
diff --git a/app/nginx/src/http/ngx_http_header_filter_module.c b/app/nginx/src/http/ngx_http_header_filter_module.c deleted file mode 100644 index c09c519..0000000 --- a/app/nginx/src/http/ngx_http_header_filter_module.c +++ /dev/null @@ -1,629 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_http.h> -#include <nginx.h> - - -static ngx_int_t ngx_http_header_filter_init(ngx_conf_t *cf); -static ngx_int_t ngx_http_header_filter(ngx_http_request_t *r); - - -static ngx_http_module_t ngx_http_header_filter_module_ctx = { - NULL, /* preconfiguration */ - ngx_http_header_filter_init, /* postconfiguration */ - - NULL, /* create main configuration */ - NULL, /* init main configuration */ - - NULL, /* create server configuration */ - NULL, /* merge server configuration */ - - NULL, /* create location configuration */ - NULL, /* merge location configuration */ -}; - - -ngx_module_t ngx_http_header_filter_module = { - NGX_MODULE_V1, - &ngx_http_header_filter_module_ctx, /* module context */ - NULL, /* 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 u_char ngx_http_server_string[] = "Server: nginx" CRLF; -static u_char ngx_http_server_full_string[] = "Server: " NGINX_VER CRLF; -static u_char ngx_http_server_build_string[] = "Server: " NGINX_VER_BUILD CRLF; - - -static ngx_str_t ngx_http_status_lines[] = { - - ngx_string("200 OK"), - ngx_string("201 Created"), - ngx_string("202 Accepted"), - ngx_null_string, /* "203 Non-Authoritative Information" */ - ngx_string("204 No Content"), - ngx_null_string, /* "205 Reset Content" */ - ngx_string("206 Partial Content"), - - /* ngx_null_string, */ /* "207 Multi-Status" */ - -#define NGX_HTTP_LAST_2XX 207 -#define NGX_HTTP_OFF_3XX (NGX_HTTP_LAST_2XX - 200) - - /* ngx_null_string, */ /* "300 Multiple Choices" */ - - ngx_string("301 Moved Permanently"), - ngx_string("302 Moved Temporarily"), - ngx_string("303 See Other"), - ngx_string("304 Not Modified"), - ngx_null_string, /* "305 Use Proxy" */ - ngx_null_string, /* "306 unused" */ - ngx_string("307 Temporary Redirect"), - -#define NGX_HTTP_LAST_3XX 308 -#define NGX_HTTP_OFF_4XX (NGX_HTTP_LAST_3XX - 301 + NGX_HTTP_OFF_3XX) - - ngx_string("400 Bad Request"), - ngx_string("401 Unauthorized"), - ngx_string("402 Payment Required"), - ngx_string("403 Forbidden"), - ngx_string("404 Not Found"), - ngx_string("405 Not Allowed"), - ngx_string("406 Not Acceptable"), - ngx_null_string, /* "407 Proxy Authentication Required" */ - ngx_string("408 Request Time-out"), - ngx_string("409 Conflict"), - ngx_string("410 Gone"), - ngx_string("411 Length Required"), - ngx_string("412 Precondition Failed"), - ngx_string("413 Request Entity Too Large"), - ngx_string("414 Request-URI Too Large"), - ngx_string("415 Unsupported Media Type"), - ngx_string("416 Requested Range Not Satisfiable"), - ngx_null_string, /* "417 Expectation Failed" */ - ngx_null_string, /* "418 unused" */ - ngx_null_string, /* "419 unused" */ - ngx_null_string, /* "420 unused" */ - ngx_string("421 Misdirected Request"), - ngx_null_string, /* "422 Unprocessable Entity" */ - ngx_null_string, /* "423 Locked" */ - ngx_null_string, /* "424 Failed Dependency" */ - ngx_null_string, /* "425 unused" */ - ngx_null_string, /* "426 Upgrade Required" */ - ngx_null_string, /* "427 unused" */ - ngx_null_string, /* "428 Precondition Required" */ - ngx_string("429 Too Many Requests"), - -#define NGX_HTTP_LAST_4XX 430 -#define NGX_HTTP_OFF_5XX (NGX_HTTP_LAST_4XX - 400 + NGX_HTTP_OFF_4XX) - - ngx_string("500 Internal Server Error"), - ngx_string("501 Not Implemented"), - ngx_string("502 Bad Gateway"), - ngx_string("503 Service Temporarily Unavailable"), - ngx_string("504 Gateway Time-out"), - ngx_null_string, /* "505 HTTP Version Not Supported" */ - ngx_null_string, /* "506 Variant Also Negotiates" */ - ngx_string("507 Insufficient Storage"), - - /* ngx_null_string, */ /* "508 unused" */ - /* ngx_null_string, */ /* "509 unused" */ - /* ngx_null_string, */ /* "510 Not Extended" */ - -#define NGX_HTTP_LAST_5XX 508 - -}; - - -ngx_http_header_out_t ngx_http_headers_out[] = { - { ngx_string("Server"), offsetof(ngx_http_headers_out_t, server) }, - { ngx_string("Date"), offsetof(ngx_http_headers_out_t, date) }, - { ngx_string("Content-Length"), - offsetof(ngx_http_headers_out_t, content_length) }, - { ngx_string("Content-Encoding"), - offsetof(ngx_http_headers_out_t, content_encoding) }, - { ngx_string("Location"), offsetof(ngx_http_headers_out_t, location) }, - { ngx_string("Last-Modified"), - offsetof(ngx_http_headers_out_t, last_modified) }, - { ngx_string("Accept-Ranges"), - offsetof(ngx_http_headers_out_t, accept_ranges) }, - { ngx_string("Expires"), offsetof(ngx_http_headers_out_t, expires) }, - { ngx_string("Cache-Control"), - offsetof(ngx_http_headers_out_t, cache_control) }, - { ngx_string("ETag"), offsetof(ngx_http_headers_out_t, etag) }, - - { ngx_null_string, 0 } -}; - - -static ngx_int_t -ngx_http_header_filter(ngx_http_request_t *r) -{ - u_char *p; - size_t len; - ngx_str_t host, *status_line; - ngx_buf_t *b; - ngx_uint_t status, i, port; - ngx_chain_t out; - ngx_list_part_t *part; - ngx_table_elt_t *header; - ngx_connection_t *c; - ngx_http_core_loc_conf_t *clcf; - ngx_http_core_srv_conf_t *cscf; - u_char addr[NGX_SOCKADDR_STRLEN]; - - if (r->header_sent) { - return NGX_OK; - } - - r->header_sent = 1; - - if (r != r->main) { - return NGX_OK; - } - - if (r->http_version < NGX_HTTP_VERSION_10) { - return NGX_OK; - } - - if (r->method == NGX_HTTP_HEAD) { - r->header_only = 1; - } - - if (r->headers_out.last_modified_time != -1) { - if (r->headers_out.status != NGX_HTTP_OK - && r->headers_out.status != NGX_HTTP_PARTIAL_CONTENT - && r->headers_out.status != NGX_HTTP_NOT_MODIFIED) - { - r->headers_out.last_modified_time = -1; - r->headers_out.last_modified = NULL; - } - } - - len = sizeof("HTTP/1.x ") - 1 + sizeof(CRLF) - 1 - /* the end of the header */ - + sizeof(CRLF) - 1; - - /* status line */ - - if (r->headers_out.status_line.len) { - len += r->headers_out.status_line.len; - status_line = &r->headers_out.status_line; -#if (NGX_SUPPRESS_WARN) - status = 0; -#endif - - } else { - - status = r->headers_out.status; - - if (status >= NGX_HTTP_OK - && status < NGX_HTTP_LAST_2XX) - { - /* 2XX */ - - if (status == NGX_HTTP_NO_CONTENT) { - r->header_only = 1; - ngx_str_null(&r->headers_out.content_type); - r->headers_out.last_modified_time = -1; - r->headers_out.last_modified = NULL; - r->headers_out.content_length = NULL; - r->headers_out.content_length_n = -1; - } - - status -= NGX_HTTP_OK; - status_line = &ngx_http_status_lines[status]; - len += ngx_http_status_lines[status].len; - - } else if (status >= NGX_HTTP_MOVED_PERMANENTLY - && status < NGX_HTTP_LAST_3XX) - { - /* 3XX */ - - if (status == NGX_HTTP_NOT_MODIFIED) { - r->header_only = 1; - } - - status = status - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_OFF_3XX; - status_line = &ngx_http_status_lines[status]; - len += ngx_http_status_lines[status].len; - - } else if (status >= NGX_HTTP_BAD_REQUEST - && status < NGX_HTTP_LAST_4XX) - { - /* 4XX */ - status = status - NGX_HTTP_BAD_REQUEST - + NGX_HTTP_OFF_4XX; - - status_line = &ngx_http_status_lines[status]; - len += ngx_http_status_lines[status].len; - - } else if (status >= NGX_HTTP_INTERNAL_SERVER_ERROR - && status < NGX_HTTP_LAST_5XX) - { - /* 5XX */ - status = status - NGX_HTTP_INTERNAL_SERVER_ERROR - + NGX_HTTP_OFF_5XX; - - status_line = &ngx_http_status_lines[status]; - len += ngx_http_status_lines[status].len; - - } else { - len += NGX_INT_T_LEN + 1 /* SP */; - status_line = NULL; - } - - if (status_line && status_line->len == 0) { - status = r->headers_out.status; - len += NGX_INT_T_LEN + 1 /* SP */; - status_line = NULL; - } - } - - clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); - - if (r->headers_out.server == NULL) { - if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_ON) { - len += sizeof(ngx_http_server_full_string) - 1; - - } else if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_BUILD) { - len += sizeof(ngx_http_server_build_string) - 1; - - } else { - len += sizeof(ngx_http_server_string) - 1; - } - } - - if (r->headers_out.date == NULL) { - len += sizeof("Date: Mon, 28 Sep 1970 06:00:00 GMT" CRLF) - 1; - } - - if (r->headers_out.content_type.len) { - len += sizeof("Content-Type: ") - 1 - + r->headers_out.content_type.len + 2; - - if (r->headers_out.content_type_len == r->headers_out.content_type.len - && r->headers_out.charset.len) - { - len += sizeof("; charset=") - 1 + r->headers_out.charset.len; - } - } - - if (r->headers_out.content_length == NULL - && r->headers_out.content_length_n >= 0) - { - len += sizeof("Content-Length: ") - 1 + NGX_OFF_T_LEN + 2; - } - - if (r->headers_out.last_modified == NULL - && r->headers_out.last_modified_time != -1) - { - len += sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT" CRLF) - 1; - } - - c = r->connection; - - if (r->headers_out.location - && r->headers_out.location->value.len - && r->headers_out.location->value.data[0] == '/' - && clcf->absolute_redirect) - { - r->headers_out.location->hash = 0; - - if (clcf->server_name_in_redirect) { - cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); - host = cscf->server_name; - - } else if (r->headers_in.server.len) { - host = r->headers_in.server; - - } else { - host.len = NGX_SOCKADDR_STRLEN; - host.data = addr; - - if (ngx_connection_local_sockaddr(c, &host, 0) != NGX_OK) { - return NGX_ERROR; - } - } - - port = ngx_inet_get_port(c->local_sockaddr); - - len += sizeof("Location: https://") - 1 - + host.len - + r->headers_out.location->value.len + 2; - - if (clcf->port_in_redirect) { - -#if (NGX_HTTP_SSL) - if (c->ssl) - port = (port == 443) ? 0 : port; - else -#endif - port = (port == 80) ? 0 : port; - - } else { - port = 0; - } - - if (port) { - len += sizeof(":65535") - 1; - } - - } else { - ngx_str_null(&host); - port = 0; - } - - if (r->chunked) { - len += sizeof("Transfer-Encoding: chunked" CRLF) - 1; - } - - if (r->headers_out.status == NGX_HTTP_SWITCHING_PROTOCOLS) { - len += sizeof("Connection: upgrade" CRLF) - 1; - - } else if (r->keepalive) { - len += sizeof("Connection: keep-alive" CRLF) - 1; - - /* - * MSIE and Opera ignore the "Keep-Alive: timeout=<N>" header. - * MSIE keeps the connection alive for about 60-65 seconds. - * Opera keeps the connection alive very long. - * Mozilla keeps the connection alive for N plus about 1-10 seconds. - * Konqueror keeps the connection alive for about N seconds. - */ - - if (clcf->keepalive_header) { - len += sizeof("Keep-Alive: timeout=") - 1 + NGX_TIME_T_LEN + 2; - } - - } else { - len += sizeof("Connection: close" CRLF) - 1; - } - -#if (NGX_HTTP_GZIP) - if (r->gzip_vary) { - if (clcf->gzip_vary) { - len += sizeof("Vary: Accept-Encoding" CRLF) - 1; - - } else { - r->gzip_vary = 0; - } - } -#endif - - part = &r->headers_out.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 (header[i].hash == 0) { - 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; - } - - /* "HTTP/1.x " */ - b->last = ngx_cpymem(b->last, "HTTP/1.1 ", sizeof("HTTP/1.x ") - 1); - - /* status line */ - if (status_line) { - b->last = ngx_copy(b->last, status_line->data, status_line->len); - - } else { - b->last = ngx_sprintf(b->last, "%03ui ", status); - } - *b->last++ = CR; *b->last++ = LF; - - if (r->headers_out.server == NULL) { - if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_ON) { - p = ngx_http_server_full_string; - len = sizeof(ngx_http_server_full_string) - 1; - - } else if (clcf->server_tokens == NGX_HTTP_SERVER_TOKENS_BUILD) { - p = ngx_http_server_build_string; - len = sizeof(ngx_http_server_build_string) - 1; - - } else { - p = ngx_http_server_string; - len = sizeof(ngx_http_server_string) - 1; - } - - b->last = ngx_cpymem(b->last, p, len); - } - - if (r->headers_out.date == NULL) { - b->last = ngx_cpymem(b->last, "Date: ", sizeof("Date: ") - 1); - b->last = ngx_cpymem(b->last, ngx_cached_http_time.data, - ngx_cached_http_time.len); - - *b->last++ = CR; *b->last++ = LF; - } - - if (r->headers_out.content_type.len) { - b->last = ngx_cpymem(b->last, "Content-Type: ", - sizeof("Content-Type: ") - 1); - p = b->last; - b->last = ngx_copy(b->last, r->headers_out.content_type.data, - r->headers_out.content_type.len); - - if (r->headers_out.content_type_len == r->headers_out.content_type.len - && r->headers_out.charset.len) - { - b->last = ngx_cpymem(b->last, "; charset=", - sizeof("; charset=") - 1); - b->last = ngx_copy(b->last, r->headers_out.charset.data, - r->headers_out.charset.len); - - /* update r->headers_out.content_type for possible logging */ - - r->headers_out.content_type.len = b->last - p; - r->headers_out.content_type.data = p; - } - - *b->last++ = CR; *b->last++ = LF; - } - - if (r->headers_out.content_length == NULL - && r->headers_out.content_length_n >= 0) - { - b->last = ngx_sprintf(b->last, "Content-Length: %O" CRLF, - r->headers_out.content_length_n); - } - - if (r->headers_out.last_modified == NULL - && r->headers_out.last_modified_time != -1) - { - b->last = ngx_cpymem(b->last, "Last-Modified: ", - sizeof("Last-Modified: ") - 1); - b->last = ngx_http_time(b->last, r->headers_out.last_modified_time); - - *b->last++ = CR; *b->last++ = LF; - } - - if (host.data) { - - p = b->last + sizeof("Location: ") - 1; - - b->last = ngx_cpymem(b->last, "Location: http", - sizeof("Location: http") - 1); - -#if (NGX_HTTP_SSL) - if (c->ssl) { - *b->last++ ='s'; - } -#endif - - *b->last++ = ':'; *b->last++ = '/'; *b->last++ = '/'; - b->last = ngx_copy(b->last, host.data, host.len); - - if (port) { - b->last = ngx_sprintf(b->last, ":%ui", port); - } - - b->last = ngx_copy(b->last, r->headers_out.location->value.data, - r->headers_out.location->value.len); - - /* update r->headers_out.location->value for possible logging */ - - r->headers_out.location->value.len = b->last - p; - r->headers_out.location->value.data = p; - ngx_str_set(&r->headers_out.location->key, "Location"); - - *b->last++ = CR; *b->last++ = LF; - } - - if (r->chunked) { - b->last = ngx_cpymem(b->last, "Transfer-Encoding: chunked" CRLF, - sizeof("Transfer-Encoding: chunked" CRLF) - 1); - } - - if (r->headers_out.status == NGX_HTTP_SWITCHING_PROTOCOLS) { - b->last = ngx_cpymem(b->last, "Connection: upgrade" CRLF, - sizeof("Connection: upgrade" CRLF) - 1); - - } else if (r->keepalive) { - b->last = ngx_cpymem(b->last, "Connection: keep-alive" CRLF, - sizeof("Connection: keep-alive" CRLF) - 1); - - if (clcf->keepalive_header) { - b->last = ngx_sprintf(b->last, "Keep-Alive: timeout=%T" CRLF, - clcf->keepalive_header); - } - - } else { - b->last = ngx_cpymem(b->last, "Connection: close" CRLF, - sizeof("Connection: close" CRLF) - 1); - } - -#if (NGX_HTTP_GZIP) - if (r->gzip_vary) { - b->last = ngx_cpymem(b->last, "Vary: Accept-Encoding" CRLF, - sizeof("Vary: Accept-Encoding" CRLF) - 1); - } -#endif - - part = &r->headers_out.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 (header[i].hash == 0) { - 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, c->log, 0, - "%*s", (size_t) (b->last - b->pos), b->pos); - - /* the end of HTTP header */ - *b->last++ = CR; *b->last++ = LF; - - r->header_size = b->last - b->pos; - - if (r->header_only) { - b->last_buf = 1; - } - - out.buf = b; - out.next = NULL; - - return ngx_http_write_filter(r, &out); -} - - -static ngx_int_t -ngx_http_header_filter_init(ngx_conf_t *cf) -{ - ngx_http_top_header_filter = ngx_http_header_filter; - - return NGX_OK; -} |