include SET_URL conf setting for self-setting

3 files changed, 16 insertions, 1 deletions

diff --git a/stackbin.conf.dev b/stackbin.conf.dev
index e2fa21f..751114b 100644
--- a/stackbin.conf.dev
+++ b/stackbin.conf.dev
@@ -26,3 +26,8 @@ ADMIN_PASSWORD = 'fluffycat10'
 
 # Because the app generates the url entirely from scratch for a curl POST, the protocol can get lost, so you can force https if you define this variable.
 CURL_RESPONSE_PROTOCOL = "https"
+
+# If this is set, at the first request, the web app will visit this url to set its own prefix.
+# This is designed so that you can use your own final URL for the /set endpoint in a config file,
+# so the app will auto-configure itself.
+SET_URL = "https://bgstack15.ddns.net/stackbin/set"
diff --git a/stackbin.conf.example b/stackbin.conf.example
index 518af7c..6400ff1 100644
--- a/stackbin.conf.example
+++ b/stackbin.conf.example
@@ -26,3 +26,8 @@ ADMIN_PASSWORD = 'fluffycat10'
 
 # Because the app generates the url entirely from scratch for a curl POST, the protocol can get lost, so you can force https if you define this variable.
 CURL_RESPONSE_PROTOCOL = "https"
+
+# If this is set, at the first request, the web app will visit this url to set its own prefix.
+# This is designed so that you can use your own final URL for the /set endpoint in a config file,
+# so the app will auto-configure itself.
+SET_URL = "https://example.com/stackbin/set"
diff --git a/stackbin.py b/stackbin.py
index b245206..321cd91 100644
--- a/stackbin.py
+++ b/stackbin.py
@@ -98,6 +98,11 @@ def refresh_string(delay,url):
    """
    return f'<meta http-equiv="Refresh" content="{delay}; url={url}">'
 
+@app.before_first_request
+def visit_set():
+   if 'SET_URL' in app.config and '/set' in app.config['SET_URL']:
+      os.system(f"curl {app.config['SET_URL']} 1>/dev/null 2>&1 &")
+
 @app.before_request
 def check_user_status():
    g.user = None
@@ -381,7 +386,7 @@ def favicon():
 @app.route('/set')
 def get_proxied_path():
    prefix = "/"
-   print(f"DEBUG: request.environ: {request.environ}")
+   #print(f"DEBUG: request.environ: {request.environ}")
    if 'HTTP_X_FORWARDED_PREFIX' in request.environ:
       hl = len(dict(request.headers)["X-Forwarded-Host"].split(", "))
       pl = len(dict(request.headers)["X-Forwarded-Prefix"].split(", "))