mirror of
https://github.com/nginx/nginx.git
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147 lines
3.6 KiB
C
147 lines
3.6 KiB
C
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#include <nginx.h>
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_string.h>
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#include <ngx_http.h>
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#include <ngx_http_output_filter.h>
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static char error_tail[] =
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"<hr><center>" NGINX_VER "</center>" CRLF
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"</body>" CRLF
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"</html>" CRLF
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;
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static char error_400_page[] =
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"<html>" CRLF
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"<head><title>400 Bad Request</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>400 Bad Request</h1></center>" CRLF
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;
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static char error_403_page[] =
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"<html>" CRLF
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"<head><title>403 Forbidden</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>403 Forbidden</h1></center>" CRLF
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;
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static char error_404_page[] =
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"<html>" CRLF
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"<head><title>404 Not Found</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>404 Not Found</h1></center>" CRLF
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;
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static char error_414_page[] =
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"<html>" CRLF
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"<head><title>414 Request-URI Too Large</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>414 Request-URI Too Large</h1></center>" CRLF
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;
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static char error_500_page[] =
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"<html>" CRLF
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"<head><title>500 Internal Server Error</title></head>" CRLF
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"<body bgcolor=\"white\">" CRLF
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"<center><h1>500 Internal Server Error</h1></center>" CRLF
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;
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static ngx_str_t error_pages[] = {
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{ 0, NULL}, /* 301 */
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{ 0, NULL}, /* 302 */
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{ 0, NULL}, /* 303 */
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{ 0, NULL}, /* 304 */
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{ sizeof(error_400_page) - 1, error_400_page },
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{ 0, NULL}, /* 401 */
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{ 0, NULL}, /* 402 */
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{ sizeof(error_403_page) - 1, error_403_page },
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{ sizeof(error_404_page) - 1, error_404_page },
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{ 0, NULL}, /* 405 */
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{ 0, NULL}, /* 406 */
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{ 0, NULL}, /* 407 */
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{ 0, NULL}, /* 408 */
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{ 0, NULL}, /* 409 */
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{ 0, NULL}, /* 410 */
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{ 0, NULL}, /* 411 */
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{ 0, NULL}, /* 412 */
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{ 0, NULL}, /* 413 */
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{ sizeof(error_414_page) - 1, error_414_page },
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{ 0, NULL}, /* 415 */
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{ 0, NULL}, /* 416 */
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{ sizeof(error_500_page) - 1, error_500_page }
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};
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int ngx_http_special_response(ngx_http_request_t *r, int error)
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{
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int err, len;
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ngx_hunk_t *message, *tail;
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len = 0;
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r->headers_out.status = error;
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if (error < NGX_HTTP_BAD_REQUEST) {
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err = error - NGX_HTTP_MOVED_PERMANENTLY;
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} else if (error < NGX_HTTP_INTERNAL_SERVER_ERROR) {
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err = error - NGX_HTTP_BAD_REQUEST + 4;
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} else {
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err = error - NGX_HTTP_INTERNAL_SERVER_ERROR + 4 + 17;
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}
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if (r->keepalive != 0) {
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switch (error) {
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case NGX_HTTP_BAD_REQUEST:
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case NGX_HTTP_REQUEST_URI_TOO_LARGE:
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case NGX_HTTP_INTERNAL_SERVER_ERROR:
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r->keepalive = 0;
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}
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}
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if (error_pages[err].len == 0) {
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r->headers_out.content_length = -1;
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} else {
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r->headers_out.content_length = error_pages[err].len
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+ len + sizeof(error_tail);
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}
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if (ngx_http_send_header(r) == NGX_ERROR) {
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return NGX_ERROR;
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}
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if (error_pages[err].len == 0) {
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return NGX_OK;
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}
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ngx_test_null(message, ngx_pcalloc(r->pool, sizeof(ngx_hunk_t)), NGX_ERROR);
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message->type = NGX_HUNK_MEMORY|NGX_HUNK_IN_MEMORY;
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message->pos = error_pages[err].data;
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message->last = error_pages[err].data + error_pages[err].len;
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if (ngx_http_output_filter(r, message) == NGX_ERROR) {
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return NGX_ERROR;
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}
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ngx_test_null(tail, ngx_pcalloc(r->pool, sizeof(ngx_hunk_t)), NGX_ERROR);
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tail->type = NGX_HUNK_MEMORY|NGX_HUNK_LAST|NGX_HUNK_IN_MEMORY;
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tail->pos = error_tail;
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tail->last = error_tail + sizeof(error_tail);
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return ngx_http_output_filter(r, tail);
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}
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