问题
I'm currently using nginx (for Windows) to create the below reverse proxy with respective sub_filter to inject CSS to the HTML. I would like to replicate this in IIS 10:
location /files {
proxy_pass http://localhost:999/files;
proxy_set_header Accept-Encoding "";
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $http_connection;
sub_filter
'</head>'
'
<link rel="stylesheet" type="text/css" href="https://github.io/test/CSS/themes/dark.css">
<style>
.CalendarEvent\/downloaded\/2vSrJ {
background: rgba(39, 194, 76, 0.7) !important;
border-left-color: rgba(39, 194, 76, 0.0) !important;
}
</style>
</head>';
sub_filter_once on;
}
I can set up the same reverse proxy using IIS URL Rewrite. However, I don't know how to add the respective sub_filter code to URL Rewrite rules. I'm guessing it can be done with an Outbound Rule
; however, I'm not able to create an Outbound Rule that works correctly.
Below, is my best attempt to adding the outbound rule in addition to my reverse proxy http://mywebsite.com/files
. Unfortunately, the response I get is: "500 - Internal server error." when I visit the webpage.
Also, I'm not sure how to limit this outbound rule to apply this CSS mod only to the reverse proxy: http://mywebsite.com/files
. I tried to add a condition to limit it to just my reverse proxy; but apparently, I didn't do it right. Whatever I did broke more than one of my websites with the Internal Server Error message.
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.webServer>
<httpErrors errorMode="Custom" lockAttributes="allowAbsolutePathsWhenDelegated,defaultPath" />
<rewrite>
<rules>
<rule name="Redirect to HTTPS" enabled="true" stopProcessing="true">
<match url="(.*)" />
<conditions>
<add input="{HTTPS}" pattern="^OFF$" />
<add input="{REMOTE_ADDR}" pattern="192.168.1.2" negate="true" />
</conditions>
<action type="Redirect" url="https://{HTTP_HOST}/{R:1}" redirectType="Permanent" />
</rule>
<rule name="ReverseProxy-FILES" enabled="true" stopProcessing="false">
<match url="files\/?(.*)" />
<action type="Rewrite" url="http://localhost:999/files/{R:1}" />
</rule>
</rules>
<outboundRules rewriteBeforeCache="true">
<rule name="FILES custom CSS" preCondition="IsHTML" enabled="true">
<match filterByTags="None" pattern="</head>" />
<action type="Rewrite" value="<link rel="stylesheet" type="text/css" href="https://github.io/test/CSS/themes/dark.css"></head>" />
<conditions>
<add input="FILES" pattern="files\/?(.*)" />
</conditions>
</rule>
<preConditions>
<preCondition name="IsHTML">
<add input="{RESPONSE_CONTENT_TYPE}" pattern="^text/html" />
</preCondition>
</preConditions>
</outboundRules>
</rewrite>
<defaultDocument>
<files>
<clear />
<add value="index.html" />
<add value="default.aspx" />
<add value="index.htm" />
<add value="Default.htm" />
<add value="Default.asp" />
<add value="iisstart.htm" />
</files>
</defaultDocument>
<staticContent>
<mimeMap fileExtension=".mp4" mimeType="video/mp4" />
<mimeMap fileExtension=".todo" mimeType="text/plain" />
</staticContent>
<directoryBrowse enabled="false" />
</system.webServer>
<system.web>
<compilation debug="true" />
<sessionState mode="InProc" timeout="480" />
</system.web>
</configuration>
PS: In my outbound rule, purposely didn't add the entire CSS until I could get it to work with something a little simpler.
回答1:
<rule name="FILES custom CSS" preCondition="IsHTML" enabled="true">
<match filterByTags="None" pattern="</head>" />
<action type="Rewrite" value="<link rel="stylesheet" type="text/css" href="https://github.io/test/CSS/themes/dark.css"></head>" />
<conditions>
<add input="FILES" pattern="files\/?(.*)" />
</conditions>
</rule>
there is not server variable name "FILES" in iis. instead of it try to use a condition like below:
<conditions>
<add input="{REQUEST_URI}" pattern="files\/?(.*)" />
</conditions>
来源:https://stackoverflow.com/questions/64813895/how-to-convert-an-nginx-reverse-proxy-sub-filter-to-iis10-url-rewrite-outbou