117 lines
3.9 KiB
C
117 lines
3.9 KiB
C
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#include "base.h"
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#include "utils.h"
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#include "plugin_core.h"
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void response_init(response *resp) {
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resp->headers = http_headers_new();
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resp->http_status = 0;
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resp->transfer_encoding = HTTP_TRANSFER_ENCODING_IDENTITY;
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}
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void response_reset(response *resp) {
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http_headers_reset(resp->headers);
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resp->http_status = 0;
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resp->transfer_encoding = HTTP_TRANSFER_ENCODING_IDENTITY;
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}
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void response_clear(response *resp) {
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http_headers_free(resp->headers);
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resp->http_status = 0;
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resp->transfer_encoding = HTTP_TRANSFER_ENCODING_IDENTITY;
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}
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void response_send_headers(connection *con) {
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GString *head = g_string_sized_new(8*1024);
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if (con->response.http_status < 100 || con->response.http_status > 999) {
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con->response.http_status = 500;
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con->content_handler = NULL;
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chunkqueue_reset(con->out);
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}
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if (0 == con->out->length && con->content_handler == NULL
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&& con->response.http_status >= 400 && con->response.http_status < 600) {
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chunkqueue_append_mem(con->out, CONST_STR_LEN("Custom error\r\n"));
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}
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if (con->content_handler == NULL) {
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con->out->is_closed = TRUE;
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}
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if ((con->response.http_status >= 100 && con->response.http_status < 200) ||
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con->response.http_status == 204 ||
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con->response.http_status == 205 ||
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con->response.http_status == 304) {
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/* They never have a content-body/length */
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chunkqueue_reset(con->out);
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con->out->is_closed = TRUE;
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} else if (con->out->is_closed) {
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g_string_printf(con->wrk->tmp_str, "%"L_GOFFSET_FORMAT, con->out->length);
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http_header_overwrite(con->response.headers, CONST_STR_LEN("Content-Length"), GSTR_LEN(con->wrk->tmp_str));
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} else if (con->keep_alive && con->request.http_version == HTTP_VERSION_1_1) {
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if (!(con->response.transfer_encoding & HTTP_TRANSFER_ENCODING_CHUNKED)) {
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con->response.transfer_encoding |= HTTP_TRANSFER_ENCODING_CHUNKED;
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http_header_append(con->response.headers, CONST_STR_LEN("Transfer-Encoding"), CONST_STR_LEN("chunked"));
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}
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} else {
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/* Unknown content length, no chunked encoding */
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con->keep_alive = FALSE;
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}
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if (con->request.http_method == HTTP_METHOD_HEAD) {
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/* content-length is set, but no body */
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chunkqueue_reset(con->out);
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con->out->is_closed = TRUE;
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}
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/* Status line */
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if (con->request.http_version == HTTP_VERSION_1_1) {
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g_string_append_len(head, CONST_STR_LEN("HTTP/1.1 "));
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if (!con->keep_alive)
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http_header_overwrite(con->response.headers, CONST_STR_LEN("Connection"), CONST_STR_LEN("close"));
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} else {
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g_string_append_len(head, CONST_STR_LEN("HTTP/1.0 "));
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if (con->keep_alive)
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http_header_overwrite(con->response.headers, CONST_STR_LEN("Connection"), CONST_STR_LEN("keep-alive"));
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}
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g_string_append_printf(head, "%i %s\r\n", con->response.http_status, http_status_string(con->response.http_status));
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/* Append headers */
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{
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http_header *header;
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GList *iter;
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gboolean have_date = FALSE, have_server = FALSE;
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for (iter = g_queue_peek_head_link(&con->response.headers->entries); iter; iter = g_list_next(iter)) {
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header = (http_header*) iter->data;
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g_string_append_len(head, GSTR_LEN(header->data));
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g_string_append_len(head, CONST_STR_LEN("\r\n"));
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if (!have_date && http_header_key_is(header, CONST_STR_LEN("date"))) have_date = TRUE;
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if (!have_server && http_header_key_is(header, CONST_STR_LEN("server"))) have_server = TRUE;
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}
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if (!have_date) {
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GString *d = worker_current_timestamp(con->wrk);
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/* HTTP/1.1 requires a Date: header */
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g_string_append_len(head, CONST_STR_LEN("Date: "));
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g_string_append_len(head, GSTR_LEN(d));
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g_string_append_len(head, CONST_STR_LEN("\r\n"));
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}
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if (!have_server) {
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GString *tag = CORE_OPTION(CORE_OPTION_SERVER_TAG).string;
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if (tag->len) {
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g_string_append_len(head, CONST_STR_LEN("Server: "));
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g_string_append_len(head, GSTR_LEN(tag));
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g_string_append_len(head, CONST_STR_LEN("\r\n"));
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}
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}
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}
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g_string_append_len(head, CONST_STR_LEN("\r\n"));
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chunkqueue_append_string(con->raw_out, head);
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}
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