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lighttpd1.4/src/response.c

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#include "first.h"
#include "response.h"
#include "base.h"
#include "burl.h"
#include "fdevent.h"
#include "http_header.h"
#include "http_kv.h"
#include "log.h"
#include "stat_cache.h"
#include "chunk.h"
#include "configfile.h"
#include "plugin.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <limits.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
int http_response_write_header(server *srv, connection *con) {
buffer * const b = chunkqueue_prepend_buffer_open(con->write_queue);
if (con->request.http_version == HTTP_VERSION_1_1) {
buffer_copy_string_len(b, CONST_STR_LEN("HTTP/1.1 "));
} else {
buffer_copy_string_len(b, CONST_STR_LEN("HTTP/1.0 "));
}
http_status_append(b, con->http_status);
/* disable keep-alive if requested */
if (con->request_count > con->conf.max_keep_alive_requests || 0 == con->conf.max_keep_alive_idle) {
con->keep_alive = 0;
} else if (0 != con->request.content_length
&& con->request.content_length != con->request_content_queue->bytes_in
&& (con->mode == DIRECT || 0 == con->conf.stream_request_body)) {
con->keep_alive = 0;
} else {
con->keep_alive_idle = con->conf.max_keep_alive_idle;
}
if ((con->response.htags & HTTP_HEADER_UPGRADE) && con->request.http_version == HTTP_VERSION_1_1) {
http_header_response_set(con, HTTP_HEADER_CONNECTION, CONST_STR_LEN("Connection"), CONST_STR_LEN("upgrade"));
} else if (0 == con->keep_alive) {
http_header_response_set(con, HTTP_HEADER_CONNECTION, CONST_STR_LEN("Connection"), CONST_STR_LEN("close"));
} else if (con->request.http_version == HTTP_VERSION_1_0) {/*(&& con->keep_alive != 0)*/
http_header_response_set(con, HTTP_HEADER_CONNECTION, CONST_STR_LEN("Connection"), CONST_STR_LEN("keep-alive"));
}
if (304 == con->http_status && (con->response.htags & HTTP_HEADER_CONTENT_ENCODING)) {
http_header_response_unset(con, HTTP_HEADER_CONTENT_ENCODING, CONST_STR_LEN("Content-Encoding"));
}
/* add all headers */
for (size_t i = 0; i < con->response.headers->used; ++i) {
const data_string * const ds = (data_string *)con->response.headers->data[i];
if (buffer_string_is_empty(ds->value) || buffer_string_is_empty(ds->key)) continue;
if ((ds->key->ptr[0] & 0xdf) == 'X') {
if (0 == strncasecmp(ds->key->ptr, CONST_STR_LEN("X-Sendfile"))) continue;
if (0 == strncasecmp(ds->key->ptr, CONST_STR_LEN("X-LIGHTTPD-"))) {
if (0 == strncasecmp(ds->key->ptr+sizeof("X-LIGHTTPD-")-1, CONST_STR_LEN("KBytes-per-second"))) {
/* "X-LIGHTTPD-KBytes-per-second" */
long limit = strtol(ds->value->ptr, NULL, 10);
if (limit > 0
&& (limit < con->conf.kbytes_per_second
|| 0 == con->conf.kbytes_per_second)) {
if (limit > USHRT_MAX) limit= USHRT_MAX;
con->conf.kbytes_per_second = limit;
}
}
continue;
}
}
buffer_append_string_len(b, CONST_STR_LEN("\r\n"));
buffer_append_string_buffer(b, ds->key);
buffer_append_string_len(b, CONST_STR_LEN(": "));
buffer_append_string_buffer(b, ds->value);
}
if (!(con->response.htags & HTTP_HEADER_DATE)) {
/* HTTP/1.1 requires a Date: header */
buffer_append_string_len(b, CONST_STR_LEN("\r\nDate: "));
/* cache the generated timestamp */
if (srv->cur_ts != srv->last_generated_date_ts) {
buffer_clear(srv->ts_date_str);
buffer_append_strftime(srv->ts_date_str, "%a, %d %b %Y %H:%M:%S GMT", gmtime(&(srv->cur_ts)));
srv->last_generated_date_ts = srv->cur_ts;
}
buffer_append_string_buffer(b, srv->ts_date_str);
}
if (!(con->response.htags & HTTP_HEADER_SERVER)) {
if (!buffer_string_is_empty(con->conf.server_tag)) {
buffer_append_string_len(b, CONST_STR_LEN("\r\nServer: "));
buffer_append_string_len(b, CONST_BUF_LEN(con->conf.server_tag));
}
}
buffer_append_string_len(b, CONST_STR_LEN("\r\n\r\n"));
con->bytes_header = buffer_string_length(b);
if (con->conf.log_response_header) {
log_error_write(srv, __FILE__, __LINE__, "sSb", "Response-Header:", "\n", b);
}
chunkqueue_prepend_buffer_commit(con->write_queue);
return 0;
}
static handler_t http_response_physical_path_check(server *srv, connection *con) {
stat_cache_entry *sce = NULL;
if (HANDLER_ERROR != stat_cache_get_entry(srv, con, con->physical.path, &sce)) {
/* file exists */
} else {
char *pathinfo = NULL;
switch (errno) {
case EACCES:
con->http_status = 403;
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- access denied");
log_error_write(srv, __FILE__, __LINE__, "sb", "Path :", con->physical.path);
}
buffer_reset(con->physical.path);
return HANDLER_FINISHED;
case ENAMETOOLONG:
/* file name to be read was too long. return 404 */
case ENOENT:
con->http_status = 404;
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- file not found");
log_error_write(srv, __FILE__, __LINE__, "sb", "Path :", con->physical.path);
}
buffer_reset(con->physical.path);
return HANDLER_FINISHED;
case ENOTDIR:
/* PATH_INFO ! :) */
break;
default:
/* we have no idea what happend. let's tell the user so. */
con->http_status = 500;
buffer_reset(con->physical.path);
log_error_write(srv, __FILE__, __LINE__, "ssbsb",
"file not found ... or so: ", strerror(errno),
con->uri.path,
"->", con->physical.path);
return HANDLER_FINISHED;
}
/* not found, perhaps PATHINFO */
{
/*(might check at startup that s->document_root does not end in '/')*/
size_t len = buffer_string_length(con->physical.basedir);
if (len > 0 && '/' == con->physical.basedir->ptr[len-1]) --len;
pathinfo = con->physical.path->ptr + len;
if ('/' != *pathinfo) {
pathinfo = NULL;
}
else if (pathinfo == con->physical.path->ptr) { /*(basedir is "/")*/
pathinfo = strchr(pathinfo+1, '/');
}
}
for (char *pprev = pathinfo; pathinfo; pprev = pathinfo, pathinfo = strchr(pathinfo+1, '/')) {
stat_cache_entry *nsce = NULL;
buffer_copy_string_len(srv->tmp_buf, con->physical.path->ptr, pathinfo - con->physical.path->ptr);
if (HANDLER_ERROR == stat_cache_get_entry(srv, con, srv->tmp_buf, &nsce)) {
pathinfo = pathinfo != pprev ? pprev : NULL;
break;
}
sce = nsce;
if (!S_ISDIR(sce->st.st_mode)) break;
}
if (NULL == pathinfo || !S_ISREG(sce->st.st_mode)) {
/* no it really doesn't exists */
con->http_status = 404;
if (con->conf.log_file_not_found) {
log_error_write(srv, __FILE__, __LINE__, "sbsb",
"file not found:", con->uri.path,
"->", con->physical.path);
}
buffer_reset(con->physical.path);
return HANDLER_FINISHED;
}
/* we have a PATHINFO */
if (pathinfo) {
size_t len = strlen(pathinfo), reqlen;
if (con->conf.force_lowercase_filenames
&& len <= (reqlen = buffer_string_length(con->request.uri))
&& 0 == strncasecmp(con->request.uri->ptr + reqlen - len, pathinfo, len)) {
/* attempt to preserve case-insensitive PATH_INFO
* (works in common case where mod_alias, mod_magnet, and other modules
* have not modified the PATH_INFO portion of request URI, or did so
* with exactly the PATH_INFO desired) */
buffer_copy_string_len(con->request.pathinfo, con->request.uri->ptr + reqlen - len, len);
} else {
buffer_copy_string_len(con->request.pathinfo, pathinfo, len);
}
/*
* shorten uri.path
*/
buffer_string_set_length(con->uri.path, buffer_string_length(con->uri.path) - len);
buffer_string_set_length(con->physical.path, (size_t)(pathinfo - con->physical.path->ptr));
}
}
#ifdef HAVE_LSTAT
if ((sce->is_symlink != 0) && !con->conf.follow_symlink) {
con->http_status = 403;
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- access denied due symlink restriction");
log_error_write(srv, __FILE__, __LINE__, "sb", "Path :", con->physical.path);
}
buffer_reset(con->physical.path);
return HANDLER_FINISHED;
};
#endif
if (S_ISDIR(sce->st.st_mode)) {
if (con->uri.path->ptr[buffer_string_length(con->uri.path) - 1] != '/') {
/* redirect to .../ */
http_response_redirect_to_directory(srv, con);
return HANDLER_FINISHED;
}
#ifdef HAVE_LSTAT
} else if (!S_ISREG(sce->st.st_mode) && !sce->is_symlink) {
#else
} else if (!S_ISREG(sce->st.st_mode)) {
#endif
/* any special handling of non-reg files ?*/
}
return HANDLER_GO_ON;
}
handler_t http_response_prepare(server *srv, connection *con) {
handler_t r;
/* looks like someone has already done a decision */
if (con->mode == DIRECT &&
(con->http_status != 0 && con->http_status != 200)) {
/* remove a packets in the queue */
if (con->file_finished == 0) {
http_response_body_clear(con, 0);
}
return HANDLER_FINISHED;
}
/* no decision yet, build conf->filename */
if (con->mode == DIRECT && buffer_is_empty(con->physical.path)) {
/* we only come here when we have the parse the full request again
*
* a HANDLER_COMEBACK from mod_rewrite and mod_fastcgi might be a
* problem here as mod_setenv might get called multiple times
*
* fastcgi-auth might lead to a COMEBACK too
* fastcgi again dead server too
*
* mod_compress might add headers twice too
*
* */
if (!con->async_callback) {
config_cond_cache_reset(srv, con);
config_setup_connection(srv, con); /* Perhaps this could be removed at other places. */
if (con->conf.log_condition_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "run condition");
}
/**
* prepare strings
*
* - uri.path_raw
* - uri.path
* - uri.query
*
*/
/**
* Name according to RFC 2396
*
* - scheme
* - authority
* - path
* - query
*
* (scheme)://(authority)(path)?(query)#fragment
*
*
*/
/* take initial scheme value from connection-level state
* (request con->uri.scheme can be overwritten for later,
* for example by mod_extforward or mod_magnet) */
buffer_copy_buffer(con->uri.scheme, con->proto);
buffer_copy_buffer(con->uri.authority, con->request.http_host);
buffer_to_lower(con->uri.authority);
if (con->request.http_method == HTTP_METHOD_CONNECT
|| (con->request.http_method == HTTP_METHOD_OPTIONS
&& con->request.uri->ptr[0] == '*'
&& con->request.uri->ptr[1] == '\0')) {
/* CONNECT ... (or) OPTIONS * ... */
buffer_copy_buffer(con->uri.path_raw, con->request.uri);
buffer_copy_buffer(con->uri.path, con->uri.path_raw);
buffer_reset(con->uri.query);
} else {
char *qstr;
if (con->conf.http_parseopts & HTTP_PARSEOPT_URL_NORMALIZE) {
/*size_t len = buffer_string_length(con->request.uri);*/
int qs = burl_normalize(con->request.uri, srv->tmp_buf, con->conf.http_parseopts);
if (-2 == qs) {
log_error_write(srv, __FILE__, __LINE__, "sb",
"invalid character in URI -> 400",
con->request.uri);
con->keep_alive = 0;
con->http_status = 400; /* Bad Request */
con->file_finished = 1;
return HANDLER_FINISHED;
}
qstr = (-1 == qs) ? NULL : con->request.uri->ptr+qs;
#if 0 /* future: might enable here, or below for all requests */
/* (Note: total header size not recalculated on HANDLER_COMEBACK
* even if other request headers changed during processing)
* (If (0 != con->loops_per_request), then the generated request
* is too large. Should a different error be returned?) */
con->header_len -= len;
len = buffer_string_length(con->request.uri);
con->header_len += len;
if (len > MAX_HTTP_REQUEST_URI) {
con->keep_alive = 0;
con->http_status = 414; /* Request-URI Too Long */
con->file_finished = 1;
return HANDLER_FINISHED;
}
if (con->header_len > MAX_HTTP_REQUEST_HEADER) {
log_error_write(srv, __FILE__, __LINE__, "sds",
"request header fields too large:", con->header_len, "-> 431");
con->keep_alive = 0;
con->http_status = 431; /* Request Header Fields Too Large */
con->file_finished = 1;
return HANDLER_FINISHED;
}
#endif
} else {
qstr = strchr(con->request.uri->ptr, '#');/* discard fragment */
if (qstr) buffer_string_set_length(con->request.uri, qstr - con->request.uri->ptr);
qstr = strchr(con->request.uri->ptr, '?');
}
/** extract query string from request.uri */
if (NULL != qstr) {
const char * const pstr = con->request.uri->ptr;
const size_t plen = (size_t)(qstr - pstr);
const size_t rlen = buffer_string_length(con->request.uri);
buffer_copy_string_len(con->uri.query, qstr + 1, rlen - plen - 1);
buffer_copy_string_len(con->uri.path_raw, pstr, plen);
} else {
buffer_reset(con->uri.query);
buffer_copy_buffer(con->uri.path_raw, con->request.uri);
}
/* decode url to path
*
* - decode url-encodings (e.g. %20 -> ' ')
* - remove path-modifiers (e.g. /../)
*/
buffer_copy_buffer(con->uri.path, con->uri.path_raw);
buffer_urldecode_path(con->uri.path);
buffer_path_simplify(con->uri.path, con->uri.path);
if (buffer_string_is_empty(con->uri.path) || con->uri.path->ptr[0] != '/') {
log_error_write(srv, __FILE__, __LINE__, "sbs",
"uri-path does not begin with '/':", con->uri.path, "-> 400");
con->keep_alive = 0;
con->http_status = 400;
con->file_finished = 1;
return HANDLER_FINISHED;
}
}
con->conditional_is_valid[COMP_SERVER_SOCKET] = 1; /* SERVERsocket */
con->conditional_is_valid[COMP_HTTP_SCHEME] = 1; /* Scheme: */
con->conditional_is_valid[COMP_HTTP_HOST] = 1; /* Host: */
con->conditional_is_valid[COMP_HTTP_REMOTE_IP] = 1; /* Client-IP */
con->conditional_is_valid[COMP_HTTP_REQUEST_METHOD] = 1; /* REQUEST_METHOD */
con->conditional_is_valid[COMP_HTTP_URL] = 1; /* HTTPurl */
con->conditional_is_valid[COMP_HTTP_QUERY_STRING] = 1; /* HTTPqs */
con->conditional_is_valid[COMP_HTTP_REQUEST_HEADER] = 1; /* HTTP request header */
config_patch_connection(srv, con);
/* do we have to downgrade to 1.0 ? */
if (!con->conf.allow_http11) {
con->request.http_version = HTTP_VERSION_1_0;
}
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- splitting Request-URI");
log_error_write(srv, __FILE__, __LINE__, "sb", "Request-URI : ", con->request.uri);
log_error_write(srv, __FILE__, __LINE__, "sb", "URI-scheme : ", con->uri.scheme);
log_error_write(srv, __FILE__, __LINE__, "sb", "URI-authority : ", con->uri.authority);
log_error_write(srv, __FILE__, __LINE__, "sb", "URI-path (raw) : ", con->uri.path_raw);
log_error_write(srv, __FILE__, __LINE__, "sb", "URI-path (clean): ", con->uri.path);
log_error_write(srv, __FILE__, __LINE__, "sb", "URI-query : ", con->uri.query);
}
/* con->conf.max_request_size is in kBytes */
if (0 != con->conf.max_request_size &&
(off_t)con->request.content_length > ((off_t)con->conf.max_request_size << 10)) {
log_error_write(srv, __FILE__, __LINE__, "sos",
"request-size too long:", (off_t) con->request.content_length, "-> 413");
con->keep_alive = 0;
con->http_status = 413;
con->file_finished = 1;
return HANDLER_FINISHED;
}
}
con->async_callback = 0; /* reset */
/**
*
* call plugins
*
* - based on the raw URL
*
*/
switch(r = plugins_call_handle_uri_raw(srv, con)) {
case HANDLER_GO_ON:
break;
case HANDLER_FINISHED:
case HANDLER_COMEBACK:
case HANDLER_WAIT_FOR_EVENT:
case HANDLER_ERROR:
return r;
default:
log_error_write(srv, __FILE__, __LINE__, "sd", "handle_uri_raw: unknown return value", r);
break;
}
/**
*
* call plugins
*
* - based on the clean URL
*
*/
switch(r = plugins_call_handle_uri_clean(srv, con)) {
case HANDLER_GO_ON:
break;
case HANDLER_FINISHED:
case HANDLER_COMEBACK:
case HANDLER_WAIT_FOR_EVENT:
case HANDLER_ERROR:
return r;
default:
log_error_write(srv, __FILE__, __LINE__, "");
break;
}
if (con->request.http_method == HTTP_METHOD_OPTIONS &&
con->uri.path->ptr[0] == '*' && con->uri.path->ptr[1] == '\0') {
/* option requests are handled directly without checking of the path */
http_header_response_append(con, HTTP_HEADER_OTHER, CONST_STR_LEN("Allow"), CONST_STR_LEN("OPTIONS, GET, HEAD, POST"));
con->http_status = 200;
con->file_finished = 1;
return HANDLER_FINISHED;
}
if (con->request.http_method == HTTP_METHOD_CONNECT && con->mode == DIRECT) {
con->keep_alive = 0;
con->http_status = 405; /* Method Not Allowed */
con->file_finished = 1;
return HANDLER_FINISHED;
}
/***
*
* border
*
* logical filename (URI) becomes a physical filename here
*
*
*
*/
/* 1. stat()
* ... ISREG() -> ok, go on
* ... ISDIR() -> index-file -> redirect
*
* 2. pathinfo()
* ... ISREG()
*
* 3. -> 404
*
*/
/*
* SEARCH DOCUMENT ROOT
*/
/* set a default */
buffer_copy_buffer(con->physical.doc_root, con->conf.document_root);
buffer_copy_buffer(con->physical.rel_path, con->uri.path);
#if defined(__WIN32) || defined(__CYGWIN__)
/* strip dots from the end and spaces
*
* windows/dos handle those filenames as the same file
*
* foo == foo. == foo..... == "foo... " == "foo.. ./"
*
* This will affect in some cases PATHINFO
*
* on native windows we could prepend the filename with \\?\ to circumvent
* this behaviour. I have no idea how to push this through cygwin
*
* */
if (con->physical.rel_path->used > 1) {
buffer *b = con->physical.rel_path;
size_t len = buffer_string_length(b);
/* strip trailing " /" or "./" once */
if (len > 1 &&
b->ptr[len - 1] == '/' &&
(b->ptr[len - 2] == ' ' || b->ptr[len - 2] == '.')) {
len -= 2;
}
/* strip all trailing " " and "." */
while (len > 0 && ( ' ' == b->ptr[len-1] || '.' == b->ptr[len-1] ) ) --len;
buffer_string_set_length(b, len);
}
#endif
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- before doc_root");
log_error_write(srv, __FILE__, __LINE__, "sb", "Doc-Root :", con->physical.doc_root);
log_error_write(srv, __FILE__, __LINE__, "sb", "Rel-Path :", con->physical.rel_path);
log_error_write(srv, __FILE__, __LINE__, "sb", "Path :", con->physical.path);
}
/* the docroot plugin should set the doc_root and might also set the physical.path
* for us (all vhost-plugins are supposed to set the doc_root)
* */
switch(r = plugins_call_handle_docroot(srv, con)) {
case HANDLER_GO_ON:
break;
case HANDLER_FINISHED:
case HANDLER_COMEBACK:
case HANDLER_WAIT_FOR_EVENT:
case HANDLER_ERROR:
return r;
default:
log_error_write(srv, __FILE__, __LINE__, "");
break;
}
/* MacOS X and Windows can't distiguish between upper and lower-case
*
* convert to lower-case
*/
if (con->conf.force_lowercase_filenames) {
buffer_to_lower(con->physical.rel_path);
}
/* the docroot plugins might set the servername, if they don't we take http-host */
if (buffer_string_is_empty(con->server_name)) {
buffer_copy_buffer(con->server_name, con->uri.authority);
}
/**
* create physical filename
* -> physical.path = docroot + rel_path
*
*/
buffer_copy_buffer(con->physical.basedir, con->physical.doc_root);
buffer_copy_buffer(con->physical.path, con->physical.doc_root);
buffer_append_path_len(con->physical.path, CONST_BUF_LEN(con->physical.rel_path));
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- after doc_root");
log_error_write(srv, __FILE__, __LINE__, "sb", "Doc-Root :", con->physical.doc_root);
log_error_write(srv, __FILE__, __LINE__, "sb", "Rel-Path :", con->physical.rel_path);
log_error_write(srv, __FILE__, __LINE__, "sb", "Path :", con->physical.path);
}
if (con->request.http_method == HTTP_METHOD_CONNECT) {
/* do not permit CONNECT requests to hit filesystem hooks
* since the CONNECT URI bypassed path normalization */
/* (This check is located here so that con->physical.path
* is filled in above to avoid repeating work next time
* http_response_prepare() is called while processing request) */
} else
switch(r = plugins_call_handle_physical(srv, con)) {
case HANDLER_GO_ON:
break;
case HANDLER_FINISHED:
case HANDLER_COMEBACK:
case HANDLER_WAIT_FOR_EVENT:
case HANDLER_ERROR:
return r;
default:
log_error_write(srv, __FILE__, __LINE__, "");
break;
}
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- logical -> physical");
log_error_write(srv, __FILE__, __LINE__, "sb", "Doc-Root :", con->physical.doc_root);
log_error_write(srv, __FILE__, __LINE__, "sb", "Basedir :", con->physical.basedir);
log_error_write(srv, __FILE__, __LINE__, "sb", "Rel-Path :", con->physical.rel_path);
log_error_write(srv, __FILE__, __LINE__, "sb", "Path :", con->physical.path);
}
}
/*
* Noone catched away the file from normal path of execution yet (like mod_access)
*
* Go on and check of the file exists at all
*/
if (con->mode == DIRECT) {
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- handling physical path");
log_error_write(srv, __FILE__, __LINE__, "sb", "Path :", con->physical.path);
}
r = http_response_physical_path_check(srv, con);
if (HANDLER_GO_ON != r) return r;
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- handling subrequest");
log_error_write(srv, __FILE__, __LINE__, "sb", "Path :", con->physical.path);
log_error_write(srv, __FILE__, __LINE__, "sb", "URI :", con->uri.path);
log_error_write(srv, __FILE__, __LINE__, "sb", "Pathinfo :", con->request.pathinfo);
}
/* call the handlers */
r = plugins_call_handle_subrequest_start(srv, con);
if (HANDLER_GO_ON != r) {
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- subrequest finished");
}
return r;
}
/* if we are still here, no one wanted the file, status 403 is ok I think */
if (con->mode == DIRECT && con->http_status == 0) {
con->http_status = (con->request.http_method != HTTP_METHOD_OPTIONS) ? 403 : 200;
return HANDLER_FINISHED;
}
}
r = plugins_call_handle_subrequest(srv, con);
if (HANDLER_GO_ON == r) r = HANDLER_FINISHED; /* request was not handled, looks like we are done */
return r;
}