Azure Web应用程序无法将代理反向到Wordpress网站 [英] Azure web apps fails to reverse proxy to Wordpress site

问题描述

谁能告诉我如何在Azure网站上设置合理的标准反向代理安排?

Can anyone tell me how to setup a reasonably standard reverse proxy arrangement on an Azure website?

我希望(Azure托管)www.site.co/blog在blog.site.co上显示(非Azure托管)wordpress网站，以便用户看不到网址更改.

I wish to have the (Azure hosted) www.site.co/blog display the (non-Azure hosted) wordpress site at blog.site.co so that users don't see an Url change.

ApplicationHost.xdt已上传.

ApplicationHost.xdt is uploaded.

 <configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">  
    <system.webServer>
        <proxy xdt:Transform="InsertIfMissing" enabled="true" preserveHostHeader="false" reverseRewriteHostInResponseHeaders="false" />
        <rewrite>
            <allowedServerVariables>
                <add name="HTTP_X_USE_HTTPS" xdt:Transform="InsertIfMissing" />
                <add name="HTTP_X_ORIGINAL_HOST" xdt:Transform="InsertIfMissing" />
                <add name="HTTP_X_UNPROXIED_URL" xdt:Transform="InsertIfMissing" />
                <add name="HTTP_X_ORIGINAL_ACCEPT_ENCODING" xdt:Transform="InsertIfMissing" />
                <add name="HTTP_ACCEPT_ENCODING" xdt:Transform="InsertIfMissing" />
            </allowedServerVariables>
        </rewrite>
    </system.webServer>
</configuration> 

Web.Config包括:

Web.Config includes:

<rule name="Proxy" stopProcessing="true">
      <match url="^blog/?(.*)" />
      <action type="Rewrite" url="https://blog.site.co/{R:1}" />
      <serverVariables>
        <set name="HTTP_X_UNPROXIED_URL" value="https://blog.site.co/{R:1}" />
        <set name="HTTP_X_USE_HTTPS" value="{HTTPS}"/>
      </serverVariables>
    </rule>

我遇到以下错误:

"HTTP错误500.50-URL重写模块错误.不允许设置服务器变量"HTTP_X_UNPROXIED_URL".将服务器变量名称添加到允许的服务器变量列表中."

"HTTP Error 500.50 - URL Rewrite Module Error. The server variable "HTTP_X_UNPROXIED_URL" is not allowed to be set. Add the server variable name to the allowed server variable list."

推荐答案

使用 xdt:Transform ="InsertIfMissing" 来设置具有相同标记名的同一父对象的多个子元素(< add> )，您还需要使用 xdt:Locator ="Match(name)" ，否则XDT系统只会先插入 < add> 元素.

When using xdt:Transform="InsertIfMissing" to set multiple child-elements of the same parent with the same tag-name (<add>) you need to also use xdt:Locator="Match(name)", otherwise the XDT system will only insert the first <add> element.

因此，在您的情况下，XDT系统仅插入< add name ="HTTP_X_USE_HTTPS"/> ，但不会复制其他元素，因为已经存在一个< add/> 元素.

So in your case, the XDT system is only inserting <add name="HTTP_X_USE_HTTPS" /> but won't copy the other elements because there's already an <add /> element present.

(我认为如果源转换文档指定多个 Insert 或 InsertIfMissing 元素而没有 xdt:Locator )

(I feel that XDT should be improved throw an error if a source transform document specifies multiple Insert or InsertIfMissing elements without a xdt:Locator)

因此将您的 applicationHost.xdt 更改为此:

<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">  
    <system.webServer>
        <proxy xdt:Transform="InsertIfMissing" enabled="true" preserveHostHeader="false" reverseRewriteHostInResponseHeaders="false" />
        <rewrite>
            <allowedServerVariables>
                <add name="HTTP_X_USE_HTTPS"                xdt:Transform="InsertIfMissing" xdt:Locator="Match(name)" />
                <add name="HTTP_X_ORIGINAL_HOST"            xdt:Transform="InsertIfMissing" xdt:Locator="Match(name)" />
                <add name="HTTP_X_UNPROXIED_URL"            xdt:Transform="InsertIfMissing" xdt:Locator="Match(name)" />
                <add name="HTTP_X_ORIGINAL_ACCEPT_ENCODING" xdt:Transform="InsertIfMissing" xdt:Locator="Match(name)" />
                <add name="HTTP_ACCEPT_ENCODING"            xdt:Transform="InsertIfMissing" xdt:Locator="Match(name)" />
            </allowedServerVariables>
        </rewrite>
    </system.webServer>
</configuration> 

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