Add PHP support in Pi-hole' HTTP server.

Signed-off-by: DL6ER <dl6er@dl6er.de>

src/api/http-common.c

@@ -324,6 +324,9 @@ void http_init(void)
 		                     "X-Xss-Protection: 1; mode=block\r\n"
 		                     "X-Content-Type-Options: nosniff\r\n"
 		                     "Referrer-Policy: same-origin",
+		"cgi_interpreter", httpsettings.php_location,
+		"cgi_pattern", "**.php$", // ** allows the files to by anywhere inside the web root
+		"index_files", "index.html,index.htm,index.php",
 		NULL
 	};
 

src/civetweb/CMakeLists.txt

@@ -14,7 +14,6 @@ set(sources
         )
 
 # We can remove the NO_SSL later on. It adds additional constraints to the build system (availablity of libSSL-dev)
-# NO_CGI = no CGI support (we don't need it)
 # NO_SSL_DL NO_SSL = no SSL support (for now)
 # USE_SERVER_STATS = makes a few anonymous statistics available, such as
 #   - Number of connections (currently and total)
@@ -26,5 +25,5 @@ set(CIVETWEB_OPTS
 
 
 add_library(civetweb OBJECT ${sources})
-target_compile_definitions(civetweb PRIVATE NO_CGI NO_SSL_DL NO_SSL USE_SERVER_STATS USE_IPV6)
+target_compile_definitions(civetweb PRIVATE NO_SSL_DL NO_SSL USE_SERVER_STATS USE_IPV6)
 target_include_directories(civetweb PRIVATE ${PROJECT_SOURCE_DIR}/src)

src/config.c

@@ -448,6 +448,17 @@ void read_FTLconf(void)
 	else
 		logg("   API_PRETTY_JSON: Disabled. Compact API output.");
 
+	// PHP-CGI
+	// defaults to: /usr/bin/php-cgi
+	// Path to an executable to use as CGI interpreter for all CGI scripts
+	// regardless of the script file extension. We use this for PHP. It
+	// needs to point at php-cgi. php-cli will not work
+	httpsettings.php_location = "/usr/bin/php-cgi";
+	buffer = parse_FTLconf(fp, "PHP.CGI");
+	if(buffer != NULL)
+		httpsettings.php_location = strdup(buffer);
+	logg("   PHP-CGI: Using %s", httpsettings.php_location);
+
 	// Read DEBUG_... setting from pihole-FTL.conf
 	// This option should be the last one as it causes
 	// some rather verbose output into the log when

src/config.h

@@ -56,6 +56,7 @@ typedef struct {
 typedef struct httpsettings {
 	char *webroot;
 	char *webhome;
+	const char *php_location;
 	const char *acl;
 	bool api_auth_for_localhost;
 	bool prettyJSON;