| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <ngx_http.h> |
| #include <nginx.h> |
| |
| |
| static char error_tail[] = |
| "<hr><center>" NGINX_VER "</center>" CRLF |
| "</body>" CRLF |
| "</html>" CRLF |
| ; |
| |
| |
| static char error_302_page[] = |
| "<html>" CRLF |
| "<head><title>302 Found</title></head>" CRLF |
| "<body bgcolor=\"white\">" CRLF |
| "<center><h1>302 Found</h1></center>" CRLF |
| ; |
| |
| |
| static char error_400_page[] = |
| "<html>" CRLF |
| "<head><title>400 Bad Request</title></head>" CRLF |
| "<body bgcolor=\"white\">" CRLF |
| "<center><h1>400 Bad Request</h1></center>" CRLF |
| ; |
| |
| |
| static char error_403_page[] = |
| "<html>" CRLF |
| "<head><title>403 Forbidden</title></head>" CRLF |
| "<body bgcolor=\"white\">" CRLF |
| "<center><h1>403 Forbidden</h1></center>" CRLF |
| ; |
| |
| |
| static char error_404_page[] = |
| "<html>" CRLF |
| "<head><title>404 Not Found</title></head>" CRLF |
| "<body bgcolor=\"white\">" CRLF |
| "<center><h1>404 Not Found</h1></center>" CRLF |
| ; |
| |
| |
| static char error_405_page[] = |
| "<html>" CRLF |
| "<head><title>405 Not Allowed</title></head>" CRLF |
| "<body bgcolor=\"white\">" CRLF |
| "<center><h1>405 Not Allowed</h1></center>" CRLF |
| ; |
| |
| |
| static char error_408_page[] = |
| "<html>" CRLF |
| "<head><title>408 Request Time-out</title></head>" CRLF |
| "<body bgcolor=\"white\">" CRLF |
| "<center><h1>408 Request Time-out</h1></center>" CRLF |
| ; |
| |
| |
| static char error_414_page[] = |
| "<html>" CRLF |
| "<head><title>414 Request-URI Too Large</title></head>" CRLF |
| "<body bgcolor=\"white\">" CRLF |
| "<center><h1>414 Request-URI Too Large</h1></center>" CRLF |
| ; |
| |
| |
| static char error_416_page[] = |
| "<html>" CRLF |
| "<head><title>416 Requested Range Not Satisfiable</title></head>" CRLF |
| "<body bgcolor=\"white\">" CRLF |
| "<center><h1>416 Requested Range Not Satisfiable</h1></center>" CRLF |
| ; |
| |
| |
| static char error_500_page[] = |
| "<html>" CRLF |
| "<head><title>500 Internal Server Error</title></head>" CRLF |
| "<body bgcolor=\"white\">" CRLF |
| "<center><h1>500 Internal Server Error</h1></center>" CRLF |
| ; |
| |
| |
| static char error_502_page[] = |
| "<html>" CRLF |
| "<head><title>502 Bad Gateway</title></head>" CRLF |
| "<body bgcolor=\"white\">" CRLF |
| "<center><h1>502 Bad Gateway</h1></center>" CRLF |
| ; |
| |
| |
| static char error_504_page[] = |
| "<html>" CRLF |
| "<head><title>504 Gateway Time-out</title></head>" CRLF |
| "<body bgcolor=\"white\">" CRLF |
| "<center><h1>504 Gateway Time-out</h1></center>" CRLF |
| ; |
| |
| |
| static ngx_str_t error_pages[] = { |
| ngx_null_string, /* 300 */ |
| ngx_null_string, /* 301 */ |
| ngx_string(error_302_page), |
| ngx_null_string, /* 303 */ |
| |
| ngx_string(error_400_page), |
| ngx_null_string, /* 401 */ |
| ngx_null_string, /* 402 */ |
| ngx_string(error_403_page), |
| ngx_string(error_404_page), |
| ngx_string(error_405_page), |
| ngx_null_string, /* 406 */ |
| ngx_null_string, /* 407 */ |
| ngx_string(error_408_page), |
| ngx_null_string, /* 409 */ |
| ngx_null_string, /* 410 */ |
| ngx_null_string, /* 411 */ |
| ngx_null_string, /* 412 */ |
| ngx_null_string, /* 413 */ |
| ngx_string(error_414_page), |
| ngx_null_string, /* 415 */ |
| ngx_string(error_416_page), |
| |
| ngx_string(error_500_page), |
| ngx_null_string, /* 501 */ |
| ngx_string(error_502_page), |
| ngx_null_string, /* 503 */ |
| ngx_string(error_504_page) |
| }; |
| |
| |
| int ngx_http_special_response_handler(ngx_http_request_t *r, int error) |
| { |
| int err; |
| ngx_hunk_t *message, *tail; |
| |
| r->headers_out.status = error; |
| |
| if (error < NGX_HTTP_BAD_REQUEST) { |
| /* 3XX */ |
| err = error - NGX_HTTP_MOVED_PERMANENTLY; |
| |
| } else if (error < NGX_HTTP_INTERNAL_SERVER_ERROR) { |
| /* 4XX */ |
| err = error - NGX_HTTP_BAD_REQUEST + 4; |
| |
| } else { |
| /* 5XX */ |
| err = error - NGX_HTTP_INTERNAL_SERVER_ERROR + 4 + 17; |
| } |
| |
| if (r->keepalive != 0) { |
| switch (error) { |
| case NGX_HTTP_BAD_REQUEST: |
| case NGX_HTTP_REQUEST_URI_TOO_LARGE: |
| case NGX_HTTP_INTERNAL_SERVER_ERROR: |
| r->keepalive = 0; |
| } |
| } |
| |
| if (r->lingering_close == 1) { |
| switch (error) { |
| case NGX_HTTP_BAD_REQUEST: |
| case NGX_HTTP_REQUEST_URI_TOO_LARGE: |
| case NGX_HTTP_INTERNAL_SERVER_ERROR: |
| r->lingering_close = 0; |
| } |
| } |
| |
| if (error_pages[err].len) { |
| r->headers_out.content_length = error_pages[err].len |
| + sizeof(error_tail); |
| |
| ngx_test_null(r->headers_out.content_type, |
| ngx_push_table(r->headers_out.headers), |
| NGX_HTTP_INTERNAL_SERVER_ERROR); |
| |
| r->headers_out.content_type->key.len = 12; |
| r->headers_out.content_type->key.data = "Content-Type"; |
| r->headers_out.content_type->value.len = 9; |
| r->headers_out.content_type->value.data = "text/html"; |
| |
| } else { |
| r->headers_out.content_length = -1; |
| } |
| |
| if (ngx_http_send_header(r) == NGX_ERROR) { |
| return NGX_ERROR; |
| } |
| |
| if (error_pages[err].len == 0) { |
| return NGX_OK; |
| } |
| |
| ngx_test_null(message, ngx_pcalloc(r->pool, sizeof(ngx_hunk_t)), NGX_ERROR); |
| |
| message->type = NGX_HUNK_MEMORY|NGX_HUNK_IN_MEMORY; |
| message->pos = error_pages[err].data; |
| message->last = error_pages[err].data + error_pages[err].len; |
| |
| if (ngx_http_output_filter(r, message) == NGX_ERROR) { |
| return NGX_ERROR; |
| } |
| |
| ngx_test_null(tail, ngx_pcalloc(r->pool, sizeof(ngx_hunk_t)), NGX_ERROR); |
| |
| tail->type = NGX_HUNK_MEMORY|NGX_HUNK_LAST|NGX_HUNK_IN_MEMORY; |
| tail->pos = error_tail; |
| tail->last = error_tail + sizeof(error_tail); |
| |
| return ngx_http_output_filter(r, tail); |
| } |
