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#include <lighttpd/base.h>
#include <lighttpd/plugin_core.h>
void li_response_init(liResponse *resp) {
resp->headers = li_http_headers_new();
resp->http_status = 0;
resp->transfer_encoding = LI_HTTP_TRANSFER_ENCODING_IDENTITY;
}
void li_response_reset(liResponse *resp) {
li_http_headers_reset(resp->headers);
resp->http_status = 0;
resp->transfer_encoding = LI_HTTP_TRANSFER_ENCODING_IDENTITY;
}
void li_response_clear(liResponse *resp) {
li_http_headers_free(resp->headers);
resp->http_status = 0;
resp->transfer_encoding = LI_HTTP_TRANSFER_ENCODING_IDENTITY;
}
void li_response_send_headers(liConnection *con) {
GString *head;
liVRequest *vr = con->mainvr;
if (vr->response.http_status < 100 || vr->response.http_status > 999) {
VR_ERROR(vr, "wrong status: %i", vr->response.http_status);
con->response_headers_sent = FALSE;
li_connection_internal_error(con);
return;
}
head = g_string_sized_new(8*1024-1);
if (0 == con->out->length && con->mainvr->handle_response_body == NULL
&& vr->response.http_status >= 400 && vr->response.http_status < 600) {
/*li_chunkqueue_append_mem(con->out, CONST_STR_LEN("Custom error\r\n"));*/
li_response_send_error_page(con);
}
if (con->mainvr->handle_response_body == NULL) {
con->out->is_closed = TRUE;
}
if ((vr->response.http_status >= 100 && vr->response.http_status < 200) ||
vr->response.http_status == 204 ||
vr->response.http_status == 205 ||
vr->response.http_status == 304) {
/* They never have a content-body/length */
li_chunkqueue_reset(con->out);
con->out->is_closed = TRUE;
} else if (con->out->is_closed) {
g_string_printf(con->wrk->tmp_str, "%"L_GOFFSET_FORMAT, con->out->length);
li_http_header_overwrite(vr->response.headers, CONST_STR_LEN("Content-Length"), GSTR_LEN(con->wrk->tmp_str));
} else if (con->keep_alive && vr->request.http_version == LI_HTTP_VERSION_1_1) {
/* TODO: maybe someone set a content length header? */
if (!(vr->response.transfer_encoding & LI_HTTP_TRANSFER_ENCODING_CHUNKED)) {
vr->response.transfer_encoding |= LI_HTTP_TRANSFER_ENCODING_CHUNKED;
li_http_header_append(vr->response.headers, CONST_STR_LEN("Transfer-Encoding"), CONST_STR_LEN("chunked"));
}
} else {
/* Unknown content length, no chunked encoding */
con->keep_alive = FALSE;
}
if (vr->request.http_method == LI_HTTP_METHOD_HEAD) {
/* content-length is set, but no body */
li_chunkqueue_reset(con->out);
con->out->is_closed = TRUE;
}
/* Status line */
if (vr->request.http_version == LI_HTTP_VERSION_1_1) {
g_string_append_len(head, CONST_STR_LEN("HTTP/1.1 "));
if (!con->keep_alive)
li_http_header_overwrite(vr->response.headers, CONST_STR_LEN("Connection"), CONST_STR_LEN("close"));
} else {
g_string_append_len(head, CONST_STR_LEN("HTTP/1.0 "));
if (con->keep_alive)
li_http_header_overwrite(vr->response.headers, CONST_STR_LEN("Connection"), CONST_STR_LEN("keep-alive"));
}
{
guint len;
gchar status_str[4];
gchar *str = li_http_status_string(vr->response.http_status, &len);
li_http_status_to_str(vr->response.http_status, status_str);
status_str[3] = ' ';
g_string_append_len(head, status_str, 4);
g_string_append_len(head, str, len);
g_string_append_len(head, CONST_STR_LEN("\r\n"));
}
/* Append headers */
{
liHttpHeader *header;
GList *iter;
gboolean have_date = FALSE, have_server = FALSE;
for (iter = g_queue_peek_head_link(&vr->response.headers->entries); iter; iter = g_list_next(iter)) {
header = (liHttpHeader*) iter->data;
g_string_append_len(head, GSTR_LEN(header->data));
g_string_append_len(head, CONST_STR_LEN("\r\n"));
if (!have_date && http_header_key_is(header, CONST_STR_LEN("date"))) have_date = TRUE;
if (!have_server && http_header_key_is(header, CONST_STR_LEN("server"))) have_server = TRUE;
}
if (!have_date) {
GString *d = li_worker_current_timestamp(con->wrk, 0);
/* HTTP/1.1 requires a Date: header */
g_string_append_len(head, CONST_STR_LEN("Date: "));
g_string_append_len(head, GSTR_LEN(d));
g_string_append_len(head, CONST_STR_LEN("\r\n"));
}
if (!have_server) {
GString *tag = CORE_OPTION(LI_CORE_OPTION_SERVER_TAG).string;
if (tag->len) {
g_string_append_len(head, CONST_STR_LEN("Server: "));
g_string_append_len(head, GSTR_LEN(tag));
g_string_append_len(head, CONST_STR_LEN("\r\n"));
}
}
}
g_string_append_len(head, CONST_STR_LEN("\r\n"));
li_chunkqueue_append_string(con->raw_out, head);
}
void li_response_send_error_page(liConnection *con) {
gchar status_str[3];
guint len;
gchar *str;
li_chunkqueue_append_mem(con->out, CONST_STR_LEN(
"<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>\n"
"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n"
"<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">\n"
" <head>\n"
" <title>"
));
li_http_status_to_str(con->mainvr->response.http_status, status_str);
li_chunkqueue_append_mem(con->out, status_str, 3);
li_chunkqueue_append_mem(con->out, CONST_STR_LEN(" - "));
str = li_http_status_string(con->mainvr->response.http_status, &len);
li_chunkqueue_append_mem(con->out, str, len);
li_chunkqueue_append_mem(con->out, CONST_STR_LEN(
"</title>\n"
" </head>\n"
" <body>\n"
" <h1>"
));
li_chunkqueue_append_mem(con->out, status_str, 3);
li_chunkqueue_append_mem(con->out, CONST_STR_LEN(" - "));
li_chunkqueue_append_mem(con->out, str, len);
li_chunkqueue_append_mem(con->out, CONST_STR_LEN(
"</h1>\n"
" </body>\n"
"</html>\n"
));
}