Update and automate authorization token retrieval

README.md

@@ -4,6 +4,7 @@ Upload FIT, TCX and GPX files to strava.com from the command line.
 ## Prerequisites
 * POSIX shell
 * cURL
+* Python 3
 
 ## Setup
 1.  Sign up at http://www.strava.com/
@@ -14,9 +15,11 @@ STRAVAUP_CLIENT_ID=FIXME
 STRAVAUP_CLIENT_SECRET=FIXME
 ~~~
 4. Get your authorization code
-* Go to https://www.strava.com/oauth/authorize?client_id=YOUR_STRAVAUP_CLIENT_ID&response_type=code&redirect_uri=http://localhost/index.php&approval_prompt=force&scope=write
-* Select 'Authorize' which will lead to a redirect URL
-* Copy the code from the redirect URL into your .stravauprc:
+  On the first run of the program, you will be prompted to visit a URL
+  with your browser and click `Authorize`.
+  The browser must be running on the same computer as the _stravaup_ script.
+  Alternatively, after clicking on `Authorize`, copy the `code` parameter
+  from the redirect URL into your .stravauprc:
 ~~~
 STRAVAUP_CODE=FIXME
 ~~~

server.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+#
+# Web server to capture the code provided by the redirect link
+# when "Authorize" is pressed in the Strave app authorization form.
+#
+
+from http.server import BaseHTTPRequestHandler, HTTPServer
+from urllib.parse import urlparse, parse_qs
+from sys import exit
+
+class CaptureHandler(BaseHTTPRequestHandler):
+    def do_GET(self):
+        parsed_path = urlparse(self.path)
+        path = parsed_path.path
+        query_params = parse_qs(parsed_path.query)
+
+        if path == '/capture':
+            # Obtain and report code to stdout
+            code_value = query_params.get('code', [''])[0]
+            print(code_value)
+
+            # Respond
+            self.send_response(200)
+            self.send_header('Content-type', 'text/html')
+            self.end_headers()
+            self.wfile.write(b"Captured 'code'")
+
+            # Stop server after capturing
+            server.server_close()
+            exit(0)
+        else:
+            self.send_response(404)
+            self.end_headers()
+
+    def log_message(self, format, *args):
+        return  # Suppress log messages
+
+
+if __name__ == '__main__':
+    server = HTTPServer(('localhost', 8080), CaptureHandler)
+    server.serve_forever()

stravaup

@@ -63,17 +63,32 @@ if [ "$STRAVAUP_CODE" = "" ]; then
     echo "Please open the following URL in a browser"
     echo -n "https://www.strava.com/oauth/authorize?client_id="
     echo -n "$STRAVAUP_CLIENT_ID"
-    echo "&response_type=code&redirect_uri=http://localhost/index.php&approval_prompt=force&scope=write"
-    echo "Select 'Authorize' which will lead to a redirect into a localhost address. Copy the authorization"
-    echo "code into .stravauprc"
-    echo "  STRAVAUP_CODE = [insert your own]"
-    exit 1
+    echo "&response_type=code&redirect_uri=http://localhost:8080/capture&approval_prompt=force&scope=activity:write"
+    echo "Select 'Authorize' to provide this script with the required authorization code."
+    STRAVAUP_CODE=$(python3 $(dirname $0)/server.py)
+    if [ -z "$STRAVAUP_CODE" ] ; then
+        echo "Unable to obtain authorization code" 1>&2
+        exit 1
+    fi
+    echo "STRAVAUP_CODE=$STRAVAUP_CODE" >> ${HOME}/.stravauprc
 fi
 
 # Get auth token
+# If needed, get refresh token
+if [ "$STRAVAUP_REFRESH_TOKEN" = "" ]; then
+    echo "Exchanging authorization token for refresh token..."
+    STRAVAUP_REFRESH_TOKEN=$(curl -s -X POST https://www.strava.com/oauth/token -F client_id="$STRAVAUP_CLIENT_ID" -F client_secret="$STRAVAUP_CLIENT_SECRET" -F code="$STRAVAUP_CODE" -F grant_type=authorization_code | cut -d':' -f5 | cut -d',' -f1 | sed -e 's/[^a-z0-9]//g')
+    echo "STRAVAUP_REFRESH_TOKEN=$STRAVAUP_REFRESH_TOKEN" >> ${HOME}/.stravauprc
+fi
+
+echo "Getting auth token..."
+TOKEN=$(curl -s -X POST https://www.strava.com/oauth/token -F client_id="$STRAVAUP_CLIENT_ID" -F client_secret="$STRAVAUP_CLIENT_SECRET" -F grant_type=refresh_token -F refresh_token="$STRAVAUP_REFRESH_TOKEN" | grep access_token | cut -d':' -f3 | cut -d',' -f1 | sed -e 's/[^a-z0-9]//g')
+
 if [ "$TOKEN" = "" ]; then
-    TOKEN=$(curl -s -X POST https://www.strava.com/oauth/token -F client_id="$STRAVAUP_CLIENT_ID" -F client_secret="$STRAVAUP_CLIENT_SECRET" -F code="$STRAVAUP_CODE" | grep -Po '"access_token":.*?[^\\]",' | cut -d':' -f2 | sed -e 's/[^a-z0-9]//g')
+    echo "Unable to get auth token. Consider deleting STRAVAUP_REFRESH_TOKEN." 1>&2
+    exit 1
 fi
 
 # Upload file
+echo "Uploading file..."
 curl -X POST https://www.strava.com/api/v3/uploads -H "Authorization: Bearer $TOKEN" -F file=@"$1" -F data_type="$datatype"