IIS 反向代理在特定路径上应用出站规则答案

【问题标题】：IIS Reverse Proxy Apply outbound rule on specific pathIIS 反向代理在特定路径上应用出站规则
【发布时间】：2016-03-07 08:38:15
【问题描述】：

我定义了以下入站和出站规则以使我的反向代理正常工作。

<rewrite>
    <rules>
        <rule name="Route the requests for backend app" stopProcessing="true">
            <match url="^foldera/folderb/(.*)" />
            <conditions>
                <add input="{HTTP_HOST}" pattern="www.site1.com" />
            </conditions>
            <action type="Rewrite" url="http://www.site2.com/{R:1}" />
            <serverVariables>
                <set name="HTTP_ACCEPT_ENCODING" value="" />
            </serverVariables>
        </rule>
    </rules>
    <outboundRules>
        <rule name="RewriteRelativePaths" preCondition="ResponseIsHtml" enabled="true" stopProcessing="false">
            <match filterByTags="A, Area, Base, Form, Frame, Head, IFrame, Img, Input, Link, Script" pattern="^/(.*)" />
            <action type="Rewrite" value="/foldera/folderb/{R:1}" />
            <conditions>
                <add input="{URL}" pattern="^/foldera/folderb/.*" />
            </conditions>
        </rule>
        <preConditions>
            <preCondition name="ResponseIsHtml">
                <add input="{RESPONSE_CONTENT_TYPE}" pattern="^text/html" />
            </preCondition>
        </preConditions>
    </outboundRules>
</rewrite>

现在，站点“http://www.site2.com/”已正确加载到“http://www.site1.com/foldera/folderb/”中，并且出站规则确保将站点 2 中的每个资源都重写为 http://www.site1.com/foldera/folderb/{resourcefromsite1} 不幸的是，出站规则也使我网站的其他部分崩溃。可能是因为他试图将每个本机资源重写为相同的“http://www.site1.com/foldera/folderb/”文件夹结构。如何使出站规则仅响应通过路径 http://www.site1.com/foldera/folderb/ 而不是通过 http://www.site1.com/foldera 请求/加载的资源

干杯杰伦

【问题讨论】：

标签： iis proxy reverse rule outbound

【解决方案1】：

您非常接近解决方案。要解决这个问题，您必须在 preCondition 中添加 {URL} 作为输入。你的重写规则最终应该是这样的：

<rewrite>
    <rules>
        <rule name="Route the requests for backend app" stopProcessing="true">
            <match url="^foldera/folderb/(.*)" />
            <conditions>
                <add input="{HTTP_HOST}" pattern="www.site1.com" />
            </conditions>
            <action type="Rewrite" url="http://www.site2.com/{R:1}" />
            <serverVariables>
                <set name="HTTP_ACCEPT_ENCODING" value="" />
            </serverVariables>
        </rule>
    </rules>
    <outboundRules>
        <rule name="RewriteRelativePaths" preCondition="ResponseIsHtml" enabled="true" stopProcessing="false">
            <match filterByTags="A, Area, Base, Form, Frame, Head, IFrame, Img, Input, Link, Script" pattern="^/(.*)" />
            <action type="Rewrite" value="/foldera/folderb/{R:1}" />
            <!-- Removed condition from here -->
        </rule>
        <preConditions>
            <preCondition name="ResponseIsHtml">
                <add input="{RESPONSE_CONTENT_TYPE}" pattern="^text/html" />
                <add input="{URL}" pattern="^/foldera/folderb/.*" /> <!-- Added your condition here -->
            </preCondition>
        </preConditions>
    </outboundRules>
</rewrite>

这种方式 Outbound Rule 将仅在 Response 是 HTML 并且当前 URL 获得指定模式时应用。

【讨论】：