Add simple libproxy implementation

3 files changed, 230 insertions, 0 deletions

diff --git a/libproxy/libproxy-1.0.pc.in b/libproxy/libproxy-1.0.pc.in
new file mode 100644
index 0000000..917b029
--- /dev/null
+++ b/libproxy/libproxy-1.0.pc.in
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libproxy-1.0
+Description: Proxy Configuration Library
+Requires: dbus-1
+Version: @VERSION@
+Libs: -L${libdir} -lproxy
+Cflags: -I${includedir} 
diff --git a/libproxy/proxy.c b/libproxy/proxy.c
new file mode 100644
index 0000000..16953bb
--- /dev/null
+++ b/libproxy/proxy.c
@@ -0,0 +1,179 @@
+/*
+ *
+ *  libproxy - A library for proxy configuration
+ *
+ *  Copyright (C) 2010  Intel Corporation. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or modify
+ *  it under the terms and conditions of the GNU Lesser General Public
+ *  License version 2.1 as published by the Free Software Foundation.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <dbus/dbus.h>
+
+#include "proxy.h"
+
+struct _pxProxyFactory {
+	DBusConnection *conn;
+};
+
+pxProxyFactory *px_proxy_factory_new(void)
+{
+	pxProxyFactory *factory;
+
+	factory = malloc(sizeof(*factory));
+	if (factory == NULL)
+		return NULL;
+
+	memset(factory, 0, sizeof(*factory));
+
+	factory->conn = dbus_bus_get_private(DBUS_BUS_SYSTEM, NULL);
+	if (factory->conn == NULL) {
+		free(factory);
+		return NULL;
+	}
+
+	dbus_connection_set_exit_on_disconnect(factory->conn, FALSE);
+
+	return factory;
+}
+
+void px_proxy_factory_free(pxProxyFactory *factory)
+{
+	if (factory == NULL)
+		return;
+
+	dbus_connection_close(factory->conn);
+
+	free(factory);
+}
+
+static char **extract_result(const char *str, const char *scheme)
+{
+	char **result;
+
+	result = malloc(sizeof(char *) * 2);
+	if (result == NULL)
+		return NULL;
+
+	result[0] = NULL;
+	result[1] = NULL;
+
+	if (strcmp(str, "DIRECT") == 0) {
+		result[0] = strdup("direct://");
+		return result;
+	}
+
+	if (strncmp(str, "PROXY ", 6) == 0) {
+		int len = strlen(scheme) + strlen(str + 6) + 4;
+		result[0] = malloc(len);
+		if (result[0] != NULL)
+			sprintf(result[0], "%s://%s", scheme, str + 6);
+		return result;
+	}
+
+	return result;
+}
+
+char **px_proxy_factory_get_proxies(pxProxyFactory *factory, const char *url)
+{
+	DBusMessage *msg, *reply;
+	const char *str = NULL;
+	char *scheme, *host, *port, *path, **result;
+
+	if (factory == NULL)
+		return NULL;
+
+	if (url == NULL)
+		return NULL;
+
+	msg = dbus_message_new_method_call("org.pacrunner",
+			"/org/pacrunner/client", "org.pacrunner.Client",
+							"FindProxyForURL");
+	if (msg == NULL)
+		goto direct;
+
+	scheme = strdup(url);
+	if (scheme == NULL) {
+		dbus_message_unref(msg);
+		goto direct;
+	}
+
+	host = strstr(scheme, "://");
+	if (host != NULL) {
+		*host = '\0';
+		host += 3;
+	} else {
+		dbus_message_unref(msg);
+		goto direct;
+	}
+
+	path = strchr(host, '/');
+	if (path != NULL)
+		*(path++) = '\0';
+
+	port = strrchr(host, ':');
+	if (port != NULL) {
+		char *end;
+		int tmp;
+
+		tmp = strtol(port + 1, &end, 10);
+		if (*end == '\0')
+			*port = '\0';
+	}
+
+	dbus_message_append_args(msg, DBUS_TYPE_STRING, &url,
+				DBUS_TYPE_STRING, &host, DBUS_TYPE_INVALID);
+
+	reply = dbus_connection_send_with_reply_and_block(factory->conn,
+							msg, -1, NULL);
+
+	dbus_message_unref(msg);
+
+	if (reply == NULL) {
+		free(scheme);
+		goto direct;
+	}
+
+	dbus_message_get_args(reply, NULL, DBUS_TYPE_STRING, &str,
+							DBUS_TYPE_INVALID);
+
+	if (str == NULL || strlen(str) == 0)
+		str = "DIRECT";
+
+	result = extract_result(str, scheme);
+
+	free(scheme);
+
+	dbus_message_unref(reply);
+
+	return result;
+
+direct:
+	result = malloc(sizeof(char *) * 2);
+	if (result == NULL)
+		return NULL;
+
+	result[0] = strdup("direct://");
+	result[1] = NULL;
+
+	return result;
+}
diff --git a/libproxy/proxy.h b/libproxy/proxy.h
new file mode 100644
index 0000000..ee21461
--- /dev/null
+++ b/libproxy/proxy.h
@@ -0,0 +1,40 @@
+/*
+ *
+ *  libproxy - A library for proxy configuration
+ *
+ *  Copyright (C) 2010  Intel Corporation. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or modify
+ *  it under the terms and conditions of the GNU Lesser General Public
+ *  License version 2.1 as published by the Free Software Foundation.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef __PROXY_H
+#define __PROXY_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct _pxProxyFactory pxProxyFactory;
+
+pxProxyFactory *px_proxy_factory_new(void);
+void px_proxy_factory_free(pxProxyFactory *factory);
+
+char **px_proxy_factory_get_proxies(pxProxyFactory *factory, const char *url);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __PROXY_H */