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shopdb-flask/deploy/windows/web.config
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applications: fix relative installer/link hrefs + serve /installers via IIS
Two problems with application download/launch/doc links:

1. Stored paths like 'installers/Foo.exe' are relative, so an <a href> on
   /shopdb/applications/6 resolved to /shopdb/applications/installers/Foo.exe.
   New basePath.fileHref() mounts a relative path under the app base
   (-> /shopdb/installers/Foo.exe) while leaving full URLs and UNC/file paths
   untouched. Applied to installpath, applicationlink, and documentationpath in
   the list and detail views.

2. Even the correct /shopdb/installers/Foo.exe 404s: httpPlatformHandler is
   path="*", so IIS forwards it to Flask, which has no such route. Add a
   web.config <location path="installers"> that clears the handler and serves
   that subpath as IIS static (with .exe/.msi MIME), from a physical
   APP_ROOT\installers folder.
2026-07-29 10:25:46 -04:00

115 lines
5.0 KiB
XML

<?xml version="1.0" encoding="UTF-8"?>
<!--
IIS site config for shopdb-flask via HttpPlatformHandler.
IIS launches waitress (a Windows-friendly WSGI server; gunicorn does NOT run
on Windows) and forwards requests to it on a private loopback port that IIS
assigns via %HTTP_PLATFORM_PORT%. One process serves both /api and the built
Vue SPA (frontend/dist), so no separate static site is needed.
Prerequisites on the box:
- HttpPlatformHandler IIS module installed
(https://www.iis.net/downloads/microsoft/httpplatformhandler)
- URL Rewrite module installed (only for the optional X-Forwarded-For rule)
- Python 3.12 + a venv at APP_ROOT\venv with requirements.txt + waitress
- Secrets live in APP_ROOT\.env (wsgi.py load_dotenv() reads it). Keep them
OUT of this file. Lock .env ACLs to the app pool identity + admins.
Replace APP_ROOT (C:\shopdb-flask below) with the real deploy path. The IIS
site's physical path MUST be APP_ROOT (where wsgi.py lives).
-->
<configuration>
<system.webServer>
<handlers>
<add name="httpplatformhandler" path="*" verb="*"
modules="httpPlatformHandler" resourceType="Unspecified" />
</handlers>
<httpPlatform
processPath="C:\shopdb-flask\venv\Scripts\waitress-serve.exe"
arguments="--port=%HTTP_PLATFORM_PORT% --host=127.0.0.1 --threads=8 --trusted-proxy=127.0.0.1 --trusted-proxy-headers=x-forwarded-for wsgi:app"
stdoutLogEnabled="true"
stdoutLogFile="C:\shopdb-flask\logs\httpplatform"
startupTimeLimit="120"
startupRetryCount="3">
<environmentVariables>
<!-- FLASK_ENV MUST be production here or wsgi.py defaults to the dev
config (SQL echo, debug, wrong DB URL). Real secrets go in .env. -->
<environmentVariable name="FLASK_ENV" value="production" />
<environmentVariable name="PYTHONPATH" value="C:\shopdb-flask" />
<!-- Subpath method only: when this web.config sits in an IIS
Application (e.g. /ops) under an existing site instead of its own
site, tell the app its mount path. Must match the alias the
Application was created with AND the VITE_BASE_PATH the frontend
was built with ('/ops/'). Omit for the own-site method.
<environmentVariable name="MOUNT_PATH" value="/ops" />
-->
</environmentVariables>
</httpPlatform>
<!--
OPTIONAL: forward the real client IP so audit logs and the kiosk
visitor-location feature (IP -> business unit) see the caller, not the
loopback that HttpPlatformHandler connects from.
This block is COMMENTED OUT by default because it needs the URL Rewrite
module; with it uncommented but URL Rewrite not installed, IIS returns
HTTP 500.19 ("configuration section not well-formed / cannot be read").
Install URL Rewrite (https://www.iis.net/downloads/microsoft/url-rewrite)
and then uncomment the <rewrite> block below to enable it.
<rewrite>
<allowedServerVariables>
<add name="HTTP_X_FORWARDED_FOR" />
</allowedServerVariables>
<rules>
<rule name="Set X-Forwarded-For" stopProcessing="false">
<match url=".*" />
<serverVariables>
<set name="HTTP_X_FORWARDED_FOR" value="{REMOTE_ADDR}" />
</serverVariables>
<action type="None" />
</rule>
</rules>
</rewrite>
-->
</system.webServer>
<!--
Installer downloads: serve /installers/* as IIS static files instead of
forwarding them to Flask. The handler above is path="*", so without this a
request for /installers/Foo.exe goes to waitress, which has no such route
(SPA fallback), and large binaries would stream through a Python thread.
This <location> clears the httpPlatformHandler for that one subpath and puts
the static file handler back, so IIS serves the bytes directly (kernel-mode,
range/resume, no Python thread held).
Requires a physical folder at APP_ROOT\installers (the site's physical path
is APP_ROOT). Drop the installer binaries there, e.g. robocopy them from the
classic wwwroot\installers. The stored installpath 'installers/Foo.exe' then
resolves to <mount>/installers/Foo.exe (e.g. /shopdb/installers/Foo.exe).
.exe/.msi are given an explicit MIME map; if the parent site has a Request
Filtering rule that denies executable extensions, also allow them there.
-->
<location path="installers">
<system.webServer>
<handlers>
<clear />
<add name="StaticFile" path="*" verb="*"
modules="StaticFileModule" resourceType="File"
requireAccess="Read" />
</handlers>
<staticContent>
<remove fileExtension=".exe" />
<mimeMap fileExtension=".exe" mimeType="application/octet-stream" />
<remove fileExtension=".msi" />
<mimeMap fileExtension=".msi" mimeType="application/octet-stream" />
</staticContent>
</system.webServer>
</location>
</configuration>