nginx/tengine设置响应头中的cookie属性

修改cookie属性:

版本一：

header_filter_by_lua '
    local cookies = ngx.header.set_cookie
    if cookies then
        if type(cookies) == "table" then
            for k,v in pairs(cookies) do
                ngx.log(ngx.INFO, "k:"..k..",value:"..v)
                cookies[k] = string.gsub(v, "test", "hello")
                ngx.header.set_cookie = cookies
            end
        else
            ngx.log(ngx.INFO, "cookie:"..cookies)
            local cookiesStr = string.gsub(cookies, "test", "hello")
            ngx.header.set_cookie = cookiesStr
        end
    end
';

版本二：

header_filter_by_lua '
    local cookies = ngx.header["set-cookie"]
    if cookies then
        if type(cookies) == "table" then
            for k,v in pairs(cookies) do
                ngx.log(ngx.INFO, "k:"..k..",value:"..v)
                cookies[k]=string.gsub(v, "test", "hello")
                ngx.header.["set-cookie"] = cookies
            end
        else
            ngx.log(ngx.INFO, "cookies:"..cookies)
            local cookiesStr = string.gsub(cookies, "test", "hello")
            ngx.header.["set-cookie"] = cookiesStr
        end
    end
';

说明：

1、以上例子是在响应头中的cookie属性中查找“test”字符串，找到后就替换为“hello”字符串。

2、响应头中有多个相同属性的情况：if type(cookies) == "table" then