105 lines
2.3 KiB
C
105 lines
2.3 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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* Copyright (C) NGINX, Inc.
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*/
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#include <nxt_router.h>
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#include <nxt_http.h>
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static void nxt_http_request_send_error_body(nxt_task_t *task, void *r,
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void *data);
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static const nxt_http_request_state_t nxt_http_request_send_error_body_state;
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static const char error[] =
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"<!DOCTYPE html>"
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"<title>Error %03d</title>"
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"<p>Error %03d.\r\n";
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/* Two %03d (4 chars) patterns are replaced by status code (3 chars). */
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#define NXT_HTTP_ERROR_LEN (nxt_length(error) - 2)
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void
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nxt_http_request_error(nxt_task_t *task, nxt_http_request_t *r,
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nxt_http_status_t status)
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{
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nxt_http_field_t *content_type;
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nxt_debug(task, "http request error: %d", status);
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if (r->header_sent || r->error) {
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goto fail;
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}
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r->error = (status == NXT_HTTP_INTERNAL_SERVER_ERROR);
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r->status = status;
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r->resp.fields = nxt_list_create(r->mem_pool, 8, sizeof(nxt_http_field_t));
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if (nxt_slow_path(r->resp.fields == NULL)) {
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goto fail;
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}
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content_type = nxt_list_zero_add(r->resp.fields);
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if (nxt_slow_path(content_type == NULL)) {
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goto fail;
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}
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nxt_http_field_set(content_type, "Content-Type", "text/html");
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r->resp.content_length = NULL;
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r->resp.content_length_n = NXT_HTTP_ERROR_LEN;
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r->state = &nxt_http_request_send_error_body_state;
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nxt_http_request_header_send(task, r,
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nxt_http_request_send_error_body, NULL);
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return;
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fail:
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nxt_http_request_error_handler(task, r, r->proto.any);
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}
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static const nxt_http_request_state_t nxt_http_request_send_error_body_state
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nxt_aligned(64) =
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{
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.error_handler = nxt_http_request_error_handler,
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};
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static void
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nxt_http_request_send_error_body(nxt_task_t *task, void *obj, void *data)
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{
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nxt_buf_t *out;
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nxt_http_request_t *r;
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r = obj;
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nxt_debug(task, "http request send error body");
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out = nxt_http_buf_mem(task, r, NXT_HTTP_ERROR_LEN);
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if (nxt_slow_path(out == NULL)) {
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goto fail;
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}
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out->mem.free = nxt_sprintf(out->mem.pos, out->mem.end, error,
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r->status, r->status);
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out->next = nxt_http_buf_last(r);
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nxt_http_request_send(task, r, out);
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return;
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fail:
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nxt_http_request_error_handler(task, r, r->proto.any);
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}
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