improve proxy

1 files changed, 62 insertions, 0 deletions

diff --git a/xmake/modules/net/proxy.lua b/xmake/modules/net/proxy.lua
new file mode 100644
index 000000000..0c7d308cb
--- /dev/null
+++ b/xmake/modules/net/proxy.lua
@@ -0,0 +1,62 @@
+--!A cross-platform build utility based on Lua
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+-- 
+-- Copyright (C) 2015-2020, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        proxy.lua
+--
+
+-- imports
+import("core.base.global")
+
+-- get proxy hosts
+function _proxy_hosts()
+    local proxy_hosts = _g._PROXY_HOSTS
+    if proxy_hosts == nil then
+        proxy_hosts = global.get("proxy_hosts")
+        if proxy_hosts then
+            proxy_hosts = proxy_hosts:split(',', {plain = true})
+        end
+        _g._PROXY_HOSTS = proxy_hosts or false
+    end
+    return proxy_hosts or nil
+end
+
+-- convert host pattern to a lua pattern
+function _host_pattern(pattern)
+    pattern = pattern:gsub("([%+%.%-%^%$%(%)%%])", "%%%1")
+    pattern = pattern:gsub("%*", "\001")
+    pattern = pattern:gsub("\001", ".*")
+    return pattern
+end
+
+-- get proxy configuration from the given url, [protocol://]host[:port]
+function get(url)
+    if url then
+        local host = url:match("://(.-)/") or url:match("@(.-):")
+        local proxy_hosts = _proxy_hosts()
+        if host and proxy_hosts then
+            host = host:lower()
+            for _, proxy_host in ipairs(proxy_hosts) do
+                proxy_host = proxy_host:lower()
+                if host == proxy_hosts or host:match(_host_pattern(proxy_host)) then
+                    return global.get("proxy")
+                end
+            end
+        end
+        return
+    end
+    return global.get("proxy")
+end