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-rw-r--r--docs/man5/tinyproxy.conf.txt.in11
-rw-r--r--etc/tinyproxy.conf.in7
-rw-r--r--src/conf.c46
-rw-r--r--src/conf.h13
-rw-r--r--src/reqs.c14
5 files changed, 90 insertions, 1 deletions
diff --git a/docs/man5/tinyproxy.conf.txt.in b/docs/man5/tinyproxy.conf.txt.in
index 4ce494b..2364944 100644
--- a/docs/man5/tinyproxy.conf.txt.in
+++ b/docs/man5/tinyproxy.conf.txt.in
@@ -219,6 +219,17 @@ The possible keywords and their descriptions are as follows:
like `host.example.com` or a domain name like `.example.com` or
even a top level domain name like `.com`.
+*AddHeader*::
+
+ Configure one or more HTTP request headers to be added to outgoing
+ HTTP requests that Tinyproxy makes. Note that this option will not
+ work for HTTPS traffic, as Tinyproxy has no control over what
+ headers are exchanged.
+ +
+----
+AddHeader "X-My-Header" "Powered by Tinyproxy"
+----
+
*ViaProxyName*::
RFC 2616 requires proxies to add a `Via` header to the HTTP
diff --git a/etc/tinyproxy.conf.in b/etc/tinyproxy.conf.in
index 04bcd4a..08f10bf 100644
--- a/etc/tinyproxy.conf.in
+++ b/etc/tinyproxy.conf.in
@@ -210,6 +210,13 @@ MaxRequestsPerChild 0
Allow 127.0.0.1
#
+# AddHeader: Adds the specified headers to outgoing HTTP requests that
+# Tinyproxy makes. Note that this option will not work for HTTPS
+# traffic, as Tinyproxy has no control over what headers are exchanged.
+#
+#AddHeader "X-My-Header" "Powered by Tinyproxy"
+
+#
# ViaProxyName: The "Via" header is required by the HTTP RFC, but using
# the real host name is a security concern. If the following directive
# is enabled, the string supplied will be used as the host name in the
diff --git a/src/conf.c b/src/conf.c
index d2b4df4..786a5b8 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -123,6 +123,7 @@ static HANDLE_FUNC (handle_connectport);
static HANDLE_FUNC (handle_defaulterrorfile);
static HANDLE_FUNC (handle_deny);
static HANDLE_FUNC (handle_errorfile);
+static HANDLE_FUNC (handle_addheader);
#ifdef FILTER_ENABLE
static HANDLE_FUNC (handle_filter);
static HANDLE_FUNC (handle_filtercasesensitive);
@@ -226,8 +227,10 @@ struct {
STDCONF ("deny", "(" "(" IPMASK "|" IPV6MASK ")" "|" ALNUM ")",
handle_deny),
STDCONF ("bind", "(" IP "|" IPV6 ")", handle_bind),
- /* error files */
+ /* other */
STDCONF ("errorfile", INT WS STR, handle_errorfile),
+ STDCONF ("addheader", STR WS STR, handle_addheader),
+
#ifdef FILTER_ENABLE
/* filtering */
STDCONF ("filter", STR, handle_filter),
@@ -260,6 +263,22 @@ struct {
const unsigned int ndirectives = sizeof (directives) / sizeof (directives[0]);
+static void
+free_added_headers (vector_t add_headers)
+{
+ ssize_t i;
+
+ for (i = 0; i < vector_length (add_headers); i++) {
+ http_header_t *header = (http_header_t *)
+ vector_getentry (add_headers, i, NULL);
+
+ safefree (header->name);
+ safefree (header->value);
+ }
+
+ vector_delete (add_headers);
+}
+
static void free_config (struct config_s *conf)
{
safefree (conf->config_file);
@@ -282,6 +301,7 @@ static void free_config (struct config_s *conf)
safefree (conf->bind_address);
safefree (conf->via_proxy_name);
hashmap_delete (conf->errorpages);
+ free_added_headers (conf->add_headers);
safefree (conf->errorpage_undef);
safefree (conf->statpage);
flush_access_list (conf->access_list);
@@ -848,6 +868,30 @@ static HANDLE_FUNC (handle_errorfile)
return 0;
}
+static HANDLE_FUNC (handle_addheader)
+{
+ char *name = get_string_arg (line, &match[2]);
+ char *value = get_string_arg (line, &match[3]);
+ http_header_t *header;
+
+ if (!conf->add_headers) {
+ conf->add_headers = vector_create ();
+ }
+
+ header = (http_header_t *) safemalloc (sizeof (http_header_t));
+ header->name = name;
+ header->value = value;
+
+ vector_prepend (conf->add_headers, header, sizeof *header);
+
+ safefree (header);
+
+ /* Don't free name or value here, as they are referenced in the
+ * struct inserted into the vector. */
+
+ return 0;
+}
+
/*
* Log level's strings.
*/
diff --git a/src/conf.h b/src/conf.h
index d914b32..fbb4748 100644
--- a/src/conf.h
+++ b/src/conf.h
@@ -26,6 +26,14 @@
#include "vector.h"
/*
+ * Stores a HTTP header created using the AddHeader directive.
+ */
+typedef struct {
+ char *name;
+ char *value;
+} http_header_t;
+
+/*
* Hold all the configuration time information.
*/
struct config_s {
@@ -97,6 +105,11 @@ struct config_s {
* anonymous feature is turned on.
*/
hashmap_t anonymous_map;
+
+ /*
+ * Extra headers to be added to outgoing HTTP requests.
+ */
+ vector_t add_headers;
};
extern int reload_config_file (const char *config_fname, struct config_s *conf,
diff --git a/src/reqs.c b/src/reqs.c
index 2f6b67e..a2df786 100644
--- a/src/reqs.c
+++ b/src/reqs.c
@@ -1327,6 +1327,7 @@ connect_to_upstream (struct conn_s *connptr, struct request_s *request)
*/
void handle_connection (int fd)
{
+ ssize_t i;
struct conn_s *connptr;
struct request_s *request = NULL;
hashmap_t hashofheaders = NULL;
@@ -1407,6 +1408,19 @@ void handle_connection (int fd)
return;
}
+ /*
+ * Add any user-specified headers (AddHeader directive) to the
+ * outgoing HTTP request.
+ */
+ for (i = 0; i < vector_length (config.add_headers); i++) {
+ http_header_t *header = (http_header_t *)
+ vector_getentry (config.add_headers, i, NULL);
+
+ hashmap_insert (hashofheaders,
+ header->name,
+ header->value, strlen (header->value) + 1);
+ }
+
request = process_request (connptr, hashofheaders);
if (!request) {
if (!connptr->error_variables && !connptr->show_stats) {