static ngx_int_t ngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page) { ngx_int_t overwrite; ngx_str_t uri, args; ngx_table_elt_t *location; ngx_http_core_loc_conf_t *clcf; overwrite = err_page->overwrite; if (overwrite && overwrite != NGX_HTTP_OK) { r->expect_tested = 1; } if (overwrite >= 0) { r->err_status = overwrite; } location = ngx_list_push(&r->headers_out.headers); if (location == NULL) { return NGX_ERROR; } if (overwrite != NGX_HTTP_MOVED_PERMANENTLY && overwrite != NGX_HTTP_MOVED_TEMPORARILY && overwrite != NGX_HTTP_SEE_OTHER && overwrite != NGX_HTTP_TEMPORARY_REDIRECT) { r->err_status = NGX_HTTP_MOVED_TEMPORARILY; } location->hash = 1; ngx_str_set(&location->key, "Location"); location->value = uri; ngx_http_clear_location(r); r->headers_out.location = location; clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (clcf->msie_refresh && r->headers_in.msie) { return ngx_http_send_refresh(r); } return ngx_http_send_special_response(r, clcf, r->err_status - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_OFF_3XX); }
static ngx_int_t ngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page) { ngx_int_t overwrite; ngx_str_t uri, args; ngx_table_elt_t *location; ngx_http_core_loc_conf_t *clcf; overwrite = err_page->overwrite; if (overwrite && overwrite != NGX_HTTP_OK) { r->expect_tested = 1; } if (overwrite >= 0) { r->err_status = overwrite; } if (ngx_http_complex_value(r, &err_page->value, &uri) != NGX_OK) { return NGX_ERROR; } if (uri.len && uri.data[0] == '/') { if (err_page->value.lengths) { ngx_http_split_args(r, &uri, &args); } else { args = err_page->args; } if (r->method != NGX_HTTP_HEAD) { r->method = NGX_HTTP_GET; r->method_name = ngx_http_get_name; } return ngx_http_internal_redirect(r, &uri, &args); } if (uri.len && uri.data[0] == '@') { return ngx_http_named_location(r, &uri); } location = ngx_list_push(&r->headers_out.headers); if (location == NULL) { return NGX_ERROR; } if (overwrite != NGX_HTTP_MOVED_PERMANENTLY && overwrite != NGX_HTTP_MOVED_TEMPORARILY && overwrite != NGX_HTTP_SEE_OTHER && overwrite != NGX_HTTP_TEMPORARY_REDIRECT) { r->err_status = NGX_HTTP_MOVED_TEMPORARILY; } location->hash = 1; ngx_str_set(&location->key, "Location"); location->value = uri; ngx_http_clear_location(r); r->headers_out.location = location; clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (clcf->msie_refresh && r->headers_in.msie) { return ngx_http_send_refresh(r); } return ngx_http_send_special_response(r, clcf, r->err_status - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_OFF_3XX); }
ngx_int_t ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error) { ngx_uint_t i, err; ngx_http_err_page_t *err_page; ngx_http_core_loc_conf_t *clcf; ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http special response: %i, \"%V?%V\"", error, &r->uri, &r->args); r->err_status = error; if (r->keepalive) { switch (error) { case NGX_HTTP_BAD_REQUEST: case NGX_HTTP_REQUEST_ENTITY_TOO_LARGE: case NGX_HTTP_REQUEST_URI_TOO_LARGE: case NGX_HTTP_TO_HTTPS: case NGX_HTTPS_CERT_ERROR: case NGX_HTTPS_NO_CERT: case NGX_HTTP_INTERNAL_SERVER_ERROR: case NGX_HTTP_NOT_IMPLEMENTED: r->keepalive = 0; } } if (r->lingering_close) { switch (error) { case NGX_HTTP_BAD_REQUEST: case NGX_HTTP_TO_HTTPS: case NGX_HTTPS_CERT_ERROR: case NGX_HTTPS_NO_CERT: r->lingering_close = 0; } } r->headers_out.content_type.len = 0; clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (!r->error_page && clcf->error_pages && r->uri_changes != 0) { if (clcf->recursive_error_pages == 0) { r->error_page = 1; } err_page = clcf->error_pages->elts; for (i = 0; i < clcf->error_pages->nelts; i++) { if (err_page[i].status == error) { return ngx_http_send_error_page(r, &err_page[i]); } } } r->expect_tested = 1; if (ngx_http_discard_request_body(r) != NGX_OK) { r->keepalive = 0; } if (clcf->msie_refresh && r->headers_in.msie && (error == NGX_HTTP_MOVED_PERMANENTLY || error == NGX_HTTP_MOVED_TEMPORARILY)) { return ngx_http_send_refresh(r); } if (error == NGX_HTTP_CREATED) { /* 201 */ err = 0; } else if (error == NGX_HTTP_NO_CONTENT) { /* 204 */ err = 0; } else if (error >= NGX_HTTP_MOVED_PERMANENTLY && error < NGX_HTTP_LAST_3XX) { /* 3XX */ err = error - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_OFF_3XX; } else if (error >= NGX_HTTP_BAD_REQUEST && error < NGX_HTTP_LAST_4XX) { /* 4XX */ err = error - NGX_HTTP_BAD_REQUEST + NGX_HTTP_OFF_4XX; } else if (error >= NGX_HTTP_NGINX_CODES && error < NGX_HTTP_LAST_5XX) { /* 49X, 5XX */ err = error - NGX_HTTP_NGINX_CODES + NGX_HTTP_OFF_5XX; switch (error) { case NGX_HTTP_TO_HTTPS: case NGX_HTTPS_CERT_ERROR: case NGX_HTTPS_NO_CERT: case NGX_HTTP_REQUEST_HEADER_TOO_LARGE: r->err_status = NGX_HTTP_BAD_REQUEST; break; } } else { /* unknown code, zero body */ err = 0; } return ngx_http_send_special_response(r, clcf, err); }
static ngx_int_t ngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page) { u_char ch, *p, *last; ngx_str_t *uri, *args, u, a; ngx_table_elt_t *location; ngx_http_core_loc_conf_t *clcf; r->err_status = err_page->overwrite; r->method = NGX_HTTP_GET; r->method_name = ngx_http_get_name; r->zero_in_uri = 0; args = NULL; if (err_page->uri_lengths) { if (ngx_http_script_run(r, &u, err_page->uri_lengths->elts, 0, err_page->uri_values->elts) == NULL) { return NGX_ERROR; } p = u.data; uri = &u; if (*p == '/') { last = p + uri->len; while (p < last) { ch = *p++; if (ch == '?') { a.len = last - p; a.data = p; args = &a; u.len = p - 1 - u.data; while (p < last) { if (*p++ == '\0') { r->zero_in_uri = 1; break; } } break; } if (ch == '\0') { r->zero_in_uri = 1; continue; } } } } else { uri = &err_page->uri; } if (uri->data[0] == '/') { return ngx_http_internal_redirect(r, uri, args); } if (uri->data[0] == '@') { return ngx_http_named_location(r, uri); } location = ngx_list_push(&r->headers_out.headers); if (location == NULL) { return NGX_ERROR; } r->err_status = NGX_HTTP_MOVED_TEMPORARILY; location->hash = 1; location->key.len = sizeof("Location") - 1; location->key.data = (u_char *) "Location"; location->value = *uri; r->headers_out.location = location; clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (clcf->msie_refresh && r->headers_in.msie) { return ngx_http_send_refresh(r); } return ngx_http_send_special_response(r, clcf, NGX_HTTP_MOVED_TEMPORARILY - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_LEVEL_200); }
ngx_int_t ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error) { ngx_int_t rc; ngx_uint_t i, err; ngx_http_err_page_t *err_page; ngx_http_core_loc_conf_t *clcf; ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http special response: %d, \"%V\"", error, &r->uri); rc = ngx_http_discard_body(r); if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) { error = NGX_HTTP_INTERNAL_SERVER_ERROR; } r->err_status = error; if (r->keepalive != 0) { switch (error) { case NGX_HTTP_BAD_REQUEST: case NGX_HTTP_REQUEST_ENTITY_TOO_LARGE: case NGX_HTTP_REQUEST_URI_TOO_LARGE: case NGX_HTTP_TO_HTTPS: case NGX_HTTPS_CERT_ERROR: case NGX_HTTPS_NO_CERT: case NGX_HTTP_INTERNAL_SERVER_ERROR: r->keepalive = 0; } } if (r->lingering_close == 1) { switch (error) { case NGX_HTTP_BAD_REQUEST: case NGX_HTTP_TO_HTTPS: case NGX_HTTPS_CERT_ERROR: case NGX_HTTPS_NO_CERT: r->lingering_close = 0; } } r->headers_out.content_type.len = 0; clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (!r->error_page && clcf->error_pages) { if (clcf->recursive_error_pages == 0) { r->error_page = 1; } err_page = clcf->error_pages->elts; for (i = 0; i < clcf->error_pages->nelts; i++) { if (err_page[i].status == error) { return ngx_http_send_error_page(r, &err_page[i]); } } } if (clcf->msie_refresh && r->headers_in.msie && (error == NGX_HTTP_MOVED_PERMANENTLY || error == NGX_HTTP_MOVED_TEMPORARILY)) { return ngx_http_send_refresh(r); } if (error == NGX_HTTP_CREATED) { /* 201 */ err = 0; r->header_only = 1; } else if (error == NGX_HTTP_NO_CONTENT) { /* 204 */ err = 0; } else if (error < NGX_HTTP_BAD_REQUEST) { /* 3XX */ err = error - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_LEVEL_200; } else if (error < NGX_HTTP_OWN_CODES) { /* 4XX */ err = error - NGX_HTTP_BAD_REQUEST + NGX_HTTP_LEVEL_200 + NGX_HTTP_LEVEL_300; } else { /* 49X, 5XX */ err = error - NGX_HTTP_OWN_CODES + NGX_HTTP_LEVEL_200 + NGX_HTTP_LEVEL_300 + NGX_HTTP_LEVEL_400; switch (error) { case NGX_HTTP_TO_HTTPS: case NGX_HTTPS_CERT_ERROR: case NGX_HTTPS_NO_CERT: r->err_status = NGX_HTTP_BAD_REQUEST; break; } } return ngx_http_send_special_response(r, clcf, err); }
static ngx_int_t ngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page) { ngx_int_t overwrite; ngx_str_t uri, args; ngx_table_elt_t *location; ngx_http_core_loc_conf_t *clcf; overwrite = err_page->overwrite; if (overwrite && overwrite != NGX_HTTP_OK) { r->expect_tested = 1; } r->err_status = overwrite; r->zero_in_uri = 0; if (ngx_http_complex_value(r, &err_page->value, &uri) != NGX_OK) { return NGX_ERROR; } if (uri.data[0] == '/') { if (err_page->value.lengths) { ngx_http_split_args(r, &uri, &args); } else { args = err_page->args; } if (r->method != NGX_HTTP_HEAD) { r->method = NGX_HTTP_GET; r->method_name = ngx_http_get_name; } return ngx_http_internal_redirect(r, &uri, &args); } if (uri.data[0] == '@') { return ngx_http_named_location(r, &uri); } location = ngx_list_push(&r->headers_out.headers); if (location == NULL) { return NGX_ERROR; } r->err_status = NGX_HTTP_MOVED_TEMPORARILY; location->hash = 1; location->key.len = sizeof("Location") - 1; location->key.data = (u_char *) "Location"; location->value = uri; r->headers_out.location = location; clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (clcf->msie_refresh && r->headers_in.msie) { return ngx_http_send_refresh(r); } return ngx_http_send_special_response(r, clcf, NGX_HTTP_MOVED_TEMPORARILY - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_LEVEL_200); }