04/16 Updated with domain settings in .env file

app.py

@@ -294,8 +294,10 @@ def update_existing_qr_codes():
     """Update existing QR codes with missing URLs or images at startup.
 
     Regenerates qr_url slugs without needing a request context.
-    For qr_code_image, constructs the base URL from FLASK_HOST/FLASK_PORT
+    For qr_code_image, uses QR_BASE_URL (from .env) as the authoritative base
-    config so this can run safely outside any HTTP request.
+    URL so that generated links always match the public-facing domain.
+    Falls back to FLASK_HOST/FLASK_PORT construction only when QR_BASE_URL is
+    not configured (development environments without a reverse proxy).
     """
     from extensions import db as _db, logger_handler as lh
     from utils.helpers import generate_qr_code, get_qr_styling, generate_qr_url
@@ -306,7 +308,12 @@ def update_existing_qr_codes():
         if not qr_codes:
             return
 
-        # Build a base URL that does not require an active request context.
+        # Prefer the explicit QR_BASE_URL env var (required behind a reverse proxy).
+        # Fall back to FLASK_HOST/PORT for local/dev environments.
+        qr_base_url = os.environ.get('QR_BASE_URL', '').rstrip('/')
+        if qr_base_url:
+            base_url = qr_base_url + '/'
+        else:
             host = os.environ.get('FLASK_HOST', '0.0.0.0')
             # 0.0.0.0 is a bind address, not a reachable hostname — default to localhost
             if host in ('0.0.0.0', ''):

config.py

@@ -60,6 +60,11 @@ class Config:
     # ------------------------------------------------------------------ #
     COMPANY_NAME    = os.environ.get('COMPANY_NAME',    'QR Code Management System')
     CONTRACT_NAME   = os.environ.get('CONTRACT_NAME',   'Default Contract')
+    # Public-facing base URL used when constructing QR code destination links.
+    # Set this to your domain with no trailing slash, e.g.:
+    #   QR_BASE_URL=https://qr.govservicesinc.com
+    # This prevents doubled-hostname issues when running behind a reverse proxy.
+    QR_BASE_URL     = os.environ.get('QR_BASE_URL', '').rstrip('/')
 
     # ------------------------------------------------------------------ #
     # File uploads

routes/qr_codes.py

@@ -42,6 +42,24 @@ import openpyxl
 bp = Blueprint('qr_codes', __name__)
 
 
+def _get_qr_base_url():
+    """
+    Return the authoritative base URL for QR code destination links.
+    Prefers the explicit QR_BASE_URL config value (set via .env / config.py).
+    Falls back gracefully to request.url_root if not configured.
+
+    Using an explicit QR_BASE_URL is required when the app runs behind a
+    reverse proxy (e.g. nginx) that can cause request.url_root to produce
+    a doubled hostname such as:
+        https://qr.govservicesinc.com,qr.govservicesinc.com/
+    """
+    configured = current_app.config.get('QR_BASE_URL', '').rstrip('/')
+    if configured:
+        return configured + '/'
+    # Fallback: normalise request.url_root to avoid any trailing-slash issues
+    return request.url_root.rstrip('/') + '/'
+
+
 # --- ADDED: helper — returns distinct (location, location_address) pairs from
 #     all standard QR codes, used to auto-populate the dynamic QR location list ---
 def get_unique_qr_locations():
@@ -193,7 +211,7 @@ def create_qr_code():
             qr_url = generate_qr_url(name, new_qr_code.id)
 
             # Generate QR code data with the destination URL and custom styling
-            qr_data = f"{request.url_root}qr/{qr_url}"
+            qr_data = f"{_get_qr_base_url()}qr/{qr_url}"
             qr_image = generate_qr_code(
                 data=qr_data,
                 fill_color=fill_color,
@@ -321,7 +339,7 @@ def import_bulk_qr_codes():
             created_by=session['user_id'],
             generate_qr_code_func=generate_qr_code,
             generate_qr_url_func=generate_qr_url,
-            request_url_root=request.url_root,
+            request_url_root=_get_qr_base_url(),
             project_lookup=project_lookup,
             QRCode=QRCode,
             Project=Project,
@@ -543,7 +561,7 @@ def edit_qr_code(qr_id):
 
             # Regenerate QR code if name or styling changed
             if name_changed or styling_changed:
-                qr_data = f"{request.url_root}qr/{qr_code.qr_url}"
+                qr_data = f"{_get_qr_base_url()}qr/{qr_code.qr_url}"
 
                 # Use new styling if available, otherwise use defaults
                 styling = get_qr_styling(qr_code)
@@ -1117,7 +1135,7 @@ def copy_qr_url(qr_id):
         return jsonify({
             'success': True,
             'message': f'QR code URL copied to clipboard!',
-            'url': f"{request.url_root}qr/{qr_code.qr_url}"
+            'url': f"{_get_qr_base_url()}qr/{qr_code.qr_url}"
         })
 
     except Exception as e:
@@ -1140,7 +1158,7 @@ def open_qr_link(qr_id):
         return jsonify({
             'success': True,
             'message': f'Opening QR code link...',
-            'url': f"{request.url_root}qr/{qr_code.qr_url}"
+            'url': f"{_get_qr_base_url()}qr/{qr_code.qr_url}"
         })
 
     except Exception as e: