Added pad downloading.

app.py

@@ -6,7 +6,7 @@ import sys
 import tempfile
 import io
 import requests
-# from svg_to_hpgl import svgToHPGL
+from svg_to_hpgl import svgToHPGL
 
 app = Flask(__name__)
 
@@ -157,7 +157,7 @@ def drawing(id):
     ascii_input = pad_export.text
 
     # to SVG
-    svg = ascii2svg(ascii_input, params['weight']);
+    svg = ascii2svg(ascii_input, params['weight'])
 
     return render_template(
         'drawing.html',
@@ -226,10 +226,22 @@ def catalogue():
 def make_svg ():
     return ''
 
-@app.route('/hpgl/')
-def hpgl ():
-    # generate svg
-    svg = make_svg()
+@app.route('/hpgl/<id>')
+def hpgl (id):
+    params = {
+        'pad': id or 'default',
+        'weight': request.args.get('w') or '3',
+    }
+    params['pad-full'] = etherpad + prefix + params['pad']
+
+    # get pad content
+    print('  getting ' + params['pad-full'])
+    pad_export = requests.get(params['pad-full'] + '/export/txt')
+    ascii_input = pad_export.text
+
+    # to SVG
+    svg = ascii2svg(ascii_input, params['weight'])
+
     # store as a temporary file
     (svg_file, svg_path) = tempfile.mkstemp()
     svg_file.write(svg)
@@ -241,11 +253,9 @@ def hpgl ():
     os.remove(svg_path)
 
     r = Response(hpgl, mimetype='application/hpgl')
-
     r.headers.extend({
         'Content-Disposition': 'attachment; filename="cobbled-paths.hpgl"'
     })
-
     return r
 
 if __name__ == '__main__':

requirements.txt

@@ -1,2 +1,3 @@
 Flask
-pyinkscape
+pyinkscape
+requests

svg_to_hpgl.py

@@ -1,5 +1,4 @@
 from hpgl_multipen_output import HpglMultipenOutput
-from sys import argv
 
 def svgToHPGL (path, speed=1, penCount=8, force=2):
     e = HpglMultipenOutput()