aboutsummaryrefslogtreecommitdiffstats
path: root/app/nginx/src/http/ngx_http_header_filter_module.c
diff options
context:
space:
mode:
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.c629
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;
-}