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authorArno Töll <arno@debian.org>2012-11-21 23:03:42 +0100
committerArno Töll <arno@debian.org>2012-11-21 23:03:42 +0100
commit1b24d86e6b2179692e60091dec59f797cd308b9e (patch)
treec5502d40d82fdef69ab9c1e4ed69904fefea9ac1 /src/response.c
parent6a6df8dc258631c6eaccb03bf08845241f6dfa4a (diff)
downloadlighttpd-1b24d86e6b2179692e60091dec59f797cd308b9e.tar.gz
Imported Upstream version 1.4.13upstream/1.4.13
Diffstat (limited to 'src/response.c')
-rw-r--r--src/response.c262
1 files changed, 134 insertions, 128 deletions
diff --git a/src/response.c b/src/response.c
index 45a1782..5f72a9b 100644
--- a/src/response.c
+++ b/src/response.c
@@ -30,9 +30,9 @@ int http_response_write_header(server *srv, connection *con) {
size_t i;
int have_date = 0;
int have_server = 0;
-
+
b = chunkqueue_get_prepend_buffer(con->write_queue);
-
+
if (con->request.http_version == HTTP_VERSION_1_1) {
BUFFER_COPY_STRING_CONST(b, "HTTP/1.1 ");
} else {
@@ -41,23 +41,23 @@ int http_response_write_header(server *srv, connection *con) {
buffer_append_long(b, con->http_status);
BUFFER_APPEND_STRING_CONST(b, " ");
buffer_append_string(b, get_http_status_name(con->http_status));
-
+
if (con->request.http_version != HTTP_VERSION_1_1 || con->keep_alive == 0) {
BUFFER_APPEND_STRING_CONST(b, "\r\nConnection: ");
buffer_append_string(b, con->keep_alive ? "keep-alive" : "close");
}
-
+
if (con->response.transfer_encoding & HTTP_TRANSFER_ENCODING_CHUNKED) {
BUFFER_APPEND_STRING_CONST(b, "\r\nTransfer-Encoding: chunked");
}
-
-
+
+
/* add all headers */
for (i = 0; i < con->response.headers->used; i++) {
data_string *ds;
-
+
ds = (data_string *)con->response.headers->data[i];
-
+
if (ds->value->used && ds->key->used &&
0 != strncmp(ds->key->ptr, "X-LIGHTTPD-", sizeof("X-LIGHTTPD-") - 1)) {
if (buffer_is_equal_string(ds->key, CONST_STR_LEN("Date"))) have_date = 1;
@@ -68,28 +68,28 @@ int http_response_write_header(server *srv, connection *con) {
BUFFER_APPEND_STRING_CONST(b, ": ");
buffer_append_string_buffer(b, ds->value);
#if 0
- log_error_write(srv, __FILE__, __LINE__, "bb",
+ log_error_write(srv, __FILE__, __LINE__, "bb",
ds->key, ds->value);
#endif
}
}
-
+
if (!have_date) {
/* HTTP/1.1 requires a Date: header */
BUFFER_APPEND_STRING_CONST(b, "\r\nDate: ");
-
+
/* cache the generated timestamp */
if (srv->cur_ts != srv->last_generated_date_ts) {
buffer_prepare_copy(srv->ts_date_str, 255);
-
- strftime(srv->ts_date_str->ptr, srv->ts_date_str->size - 1,
+
+ strftime(srv->ts_date_str->ptr, srv->ts_date_str->size - 1,
"%a, %d %b %Y %H:%M:%S GMT", gmtime(&(srv->cur_ts)));
-
+
srv->ts_date_str->used = strlen(srv->ts_date_str->ptr) + 1;
-
+
srv->last_generated_date_ts = srv->cur_ts;
}
-
+
buffer_append_string_buffer(b, srv->ts_date_str);
}
@@ -101,16 +101,16 @@ int http_response_write_header(server *srv, connection *con) {
buffer_append_string_buffer(b, con->conf.server_tag);
}
}
-
+
BUFFER_APPEND_STRING_CONST(b, "\r\n\r\n");
-
-
+
+
con->bytes_header = b->used - 1;
-
+
if (con->conf.log_response_header) {
log_error_write(srv, __FILE__, __LINE__, "sSb", "Response-Header:", "\n", b);
}
-
+
return 0;
}
@@ -118,71 +118,77 @@ int http_response_write_header(server *srv, connection *con) {
handler_t http_response_prepare(server *srv, connection *con) {
handler_t r;
-
+
/* looks like someone has already done a decision */
- if (con->mode == DIRECT &&
+ if (con->mode == DIRECT &&
(con->http_status != 0 && con->http_status != 200)) {
/* remove a packets in the queue */
if (con->file_finished == 0) {
chunkqueue_reset(con->write_queue);
}
-
+
return HANDLER_FINISHED;
}
-
+
/* no decision yet, build conf->filename */
if (con->mode == DIRECT && con->physical.path->used == 0) {
char *qstr;
/* 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
+ *
+ * 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->conf.log_condition_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "run condition");
}
config_patch_connection(srv, con, COMP_SERVER_SOCKET); /* SERVERsocket */
-
+
/**
* prepare strings
- *
- * - uri.path_raw
+ *
+ * - uri.path_raw
* - uri.path (secure)
* - uri.query
- *
+ *
*/
-
- /**
+
+ /**
* Name according to RFC 2396
- *
+ *
* - scheme
* - authority
* - path
* - query
- *
- * (scheme)://(authority)(path)?(query)
- *
- *
+ *
+ * (scheme)://(authority)(path)?(query)#fragment
+ *
+ *
*/
-
+
buffer_copy_string(con->uri.scheme, con->conf.is_ssl ? "https" : "http");
buffer_copy_string_buffer(con->uri.authority, con->request.http_host);
buffer_to_lower(con->uri.authority);
-
+
config_patch_connection(srv, con, COMP_HTTP_HOST); /* Host: */
config_patch_connection(srv, con, COMP_HTTP_REMOTEIP); /* Client-IP */
config_patch_connection(srv, con, COMP_HTTP_REFERER); /* Referer: */
config_patch_connection(srv, con, COMP_HTTP_USERAGENT); /* User-Agent: */
config_patch_connection(srv, con, COMP_HTTP_COOKIE); /* Cookie: */
-
+
+ /** their might be a fragment which has to be cut away */
+ if (NULL != (qstr = strchr(con->request.uri->ptr, '#'))) {
+ con->request.uri->used = qstr - con->request.uri->ptr;
+ con->request.uri->ptr[con->request.uri->used++] = '\0';
+ }
+
/** extract query string from request.uri */
if (NULL != (qstr = strchr(con->request.uri->ptr, '?'))) {
buffer_copy_string (con->uri.query, qstr + 1);
@@ -200,22 +206,22 @@ handler_t http_response_prepare(server *srv, connection *con) {
log_error_write(srv, __FILE__, __LINE__, "sb", "URI-path : ", con->uri.path_raw);
log_error_write(srv, __FILE__, __LINE__, "sb", "URI-query : ", con->uri.query);
}
-
+
/* disable keep-alive if requested */
-
+
if (con->request_count > con->conf.max_keep_alive_requests) {
con->keep_alive = 0;
}
-
-
+
+
/**
- *
- * call plugins
- *
+ *
+ * call plugins
+ *
* - based on the raw URL
- *
+ *
*/
-
+
switch(r = plugins_call_handle_uri_raw(srv, con)) {
case HANDLER_GO_ON:
break;
@@ -229,14 +235,14 @@ handler_t http_response_prepare(server *srv, connection *con) {
break;
}
- /* build filename
+ /* build filename
*
* - decode url-encodings (e.g. %20 -> ' ')
* - remove path-modifiers (e.g. /../)
*/
-
-
-
+
+
+
if (con->request.http_method == HTTP_METHOD_OPTIONS &&
con->uri.path_raw->ptr[0] == '*' && con->uri.path_raw->ptr[1] == '\0') {
/* OPTIONS * ... */
@@ -253,13 +259,13 @@ handler_t http_response_prepare(server *srv, connection *con) {
}
/**
- *
- * call plugins
- *
+ *
+ * call plugins
+ *
* - based on the clean URL
- *
+ *
*/
-
+
config_patch_connection(srv, con, COMP_HTTP_URL); /* HTTPurl */
config_patch_connection(srv, con, COMP_HTTP_QUERYSTRING); /* HTTPqs */
@@ -280,11 +286,11 @@ handler_t http_response_prepare(server *srv, connection *con) {
log_error_write(srv, __FILE__, __LINE__, "");
break;
}
-
+
if (con->request.http_method == HTTP_METHOD_OPTIONS &&
con->uri.path->ptr[0] == '*' && con->uri.path_raw->ptr[1] == '\0') {
/* option requests are handled directly without checking of the path */
-
+
response_header_insert(srv, con, CONST_STR_LEN("Allow"), CONST_STR_LEN("OPTIONS, GET, HEAD, POST"));
con->http_status = 200;
@@ -294,38 +300,38 @@ handler_t http_response_prepare(server *srv, connection *con) {
}
/***
- *
- * border
- *
+ *
+ * border
+ *
* logical filename (URI) becomes a physical filename here
- *
- *
- *
+ *
+ *
+ *
*/
-
-
-
-
+
+
+
+
/* 1. stat()
* ... ISREG() -> ok, go on
* ... ISDIR() -> index-file -> redirect
- *
- * 2. pathinfo()
+ *
+ * 2. pathinfo()
* ... ISREG()
- *
+ *
* 3. -> 404
- *
+ *
*/
-
+
/*
* SEARCH DOCUMENT ROOT
*/
-
+
/* set a default */
-
+
buffer_copy_string_buffer(con->physical.doc_root, con->conf.document_root);
buffer_copy_string_buffer(con->physical.rel_path, con->uri.path);
-
+
#if defined(__WIN32) || defined(__CYGWIN__)
/* strip dots from the end and spaces
*
@@ -383,9 +389,9 @@ handler_t http_response_prepare(server *srv, connection *con) {
log_error_write(srv, __FILE__, __LINE__, "");
break;
}
-
- /* MacOS X and Windows can't distiguish between upper and lower-case
- *
+
+ /* MacOS X and Windows can't distiguish between upper and lower-case
+ *
* convert to lower-case
*/
if (con->conf.force_lowercase_filenames) {
@@ -396,13 +402,13 @@ handler_t http_response_prepare(server *srv, connection *con) {
if (buffer_is_empty(con->server_name)) {
buffer_copy_string_buffer(con->server_name, con->uri.authority);
}
-
- /**
- * create physical filename
+
+ /**
+ * create physical filename
* -> physical.path = docroot + rel_path
- *
+ *
*/
-
+
buffer_copy_string_buffer(con->physical.path, con->physical.doc_root);
BUFFER_APPEND_SLASH(con->physical.path);
buffer_copy_string_buffer(con->physical.basedir, con->physical.path);
@@ -432,7 +438,7 @@ handler_t http_response_prepare(server *srv, connection *con) {
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);
@@ -440,19 +446,19 @@ handler_t http_response_prepare(server *srv, connection *con) {
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) {
char *slash = NULL;
char *pathinfo = NULL;
int found = 0;
stat_cache_entry *sce = NULL;
-
+
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);
@@ -460,7 +466,7 @@ handler_t http_response_prepare(server *srv, connection *con) {
if (HANDLER_ERROR != stat_cache_get_entry(srv, con, con->physical.path, &sce)) {
/* file exists */
-
+
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- file found");
log_error_write(srv, __FILE__, __LINE__, "sb", "Path :", con->physical.path);
@@ -481,9 +487,9 @@ handler_t http_response_prepare(server *srv, connection *con) {
if (S_ISDIR(sce->st.st_mode)) {
if (con->physical.path->ptr[con->physical.path->used - 2] != '/') {
/* redirect to .../ */
-
+
http_response_redirect_to_directory(srv, con);
-
+
return HANDLER_FINISHED;
}
#ifdef HAVE_LSTAT
@@ -499,12 +505,12 @@ handler_t http_response_prepare(server *srv, connection *con) {
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 ENOENT:
@@ -524,74 +530,74 @@ handler_t http_response_prepare(server *srv, connection *con) {
/* 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 */
-
+
buffer_copy_string_buffer(srv->tmp_buf, con->physical.path);
-
+
do {
struct stat st;
-
+
if (slash) {
buffer_copy_string_len(con->physical.path, srv->tmp_buf->ptr, slash - srv->tmp_buf->ptr);
} else {
buffer_copy_string_buffer(con->physical.path, srv->tmp_buf);
}
-
+
if (0 == stat(con->physical.path->ptr, &(st)) &&
S_ISREG(st.st_mode)) {
found = 1;
break;
}
-
+
if (pathinfo != NULL) {
*pathinfo = '\0';
}
slash = strrchr(srv->tmp_buf->ptr, '/');
-
+
if (pathinfo != NULL) {
/* restore '/' */
*pathinfo = '/';
}
-
+
if (slash) pathinfo = slash;
- } while ((found == 0) && (slash != NULL) && (slash - srv->tmp_buf->ptr > con->physical.basedir->used - 2));
-
+ } while ((found == 0) && (slash != NULL) && ((size_t)(slash - srv->tmp_buf->ptr) > (con->physical.basedir->used - 2)));
+
if (found == 0) {
/* 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) {
buffer_copy_string(con->request.pathinfo, pathinfo);
-
+
/*
* shorten uri.path
*/
-
+
con->uri.path->used -= strlen(pathinfo);
con->uri.path->ptr[con->uri.path->used - 1] = '\0';
}
-
+
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- after pathinfo check");
log_error_write(srv, __FILE__, __LINE__, "sb", "Path :", con->physical.path);
@@ -599,12 +605,12 @@ handler_t http_response_prepare(server *srv, connection *con) {
log_error_write(srv, __FILE__, __LINE__, "sb", "Pathinfo :", con->request.pathinfo);
}
}
-
+
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);
}
-
+
/* call the handlers */
switch(r = plugins_call_handle_subrequest_start(srv, con)) {
case HANDLER_GO_ON:
@@ -615,21 +621,21 @@ handler_t http_response_prepare(server *srv, connection *con) {
if (con->conf.log_request_handling) {
log_error_write(srv, __FILE__, __LINE__, "s", "-- subrequest finished");
}
-
+
/* something strange happend */
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 = 403;
-
+
return HANDLER_FINISHED;
}
-
+
}
-
+
switch(r = plugins_call_handle_subrequest(srv, con)) {
case HANDLER_GO_ON:
/* request was not handled, looks like we are done */
@@ -640,7 +646,7 @@ handler_t http_response_prepare(server *srv, connection *con) {
/* something strange happend */
return r;
}
-
+
/* can't happen */
return HANDLER_COMEBACK;
}