Merge pull request #174 from Fragger/about-attribution

Add ATTRIBUTION.md to About IITC pop up

build.py

@@ -8,7 +8,14 @@ import base64
 import sys
 import os
 import shutil
+import json
+import shelve
+import hashlib
 
+try:
+  import urllib2
+except ImportError:
+  import urllib.request as urllib2
 
 # load settings file
 from buildsettings import buildSettings
@@ -66,6 +73,33 @@ def loaderRaw(var):
     fn = var.group(1)
     return readfile(fn)
 
+def loaderMD(var):
+    fn = var.group(1)
+    # use different MD.dat's for python 2 vs 3 incase user switches versions, as they are not compatible
+    db = shelve.open('build/MDv' + str(sys.version_info.major) + '.dat')
+    if 'files' in db:
+      files = db['files']
+    else:
+      files = {}
+    file = readfile(fn)
+    filemd5 = hashlib.md5(file.encode('utf8')).hexdigest()
+    # check if file has already been parsed by the github api
+    if fn in files and filemd5 in files[fn]:
+      # use the stored copy if nothing has changed to avoid hiting the api more then the 60/hour when not signed in
+      db.close()
+      return files[fn][filemd5]
+    else:
+      url = 'https://api.github.com/markdown'
+      payload = {'text': file, 'mode': 'markdown'}
+      headers = {'Content-Type': 'application/json'}
+      req = urllib2.Request(url, json.dumps(payload).encode('utf8'), headers)
+      md = urllib2.urlopen(req).read().decode('utf8').replace('\n', '').replace('\'', '\\\'')
+      files[fn] = {}
+      files[fn][filemd5] = md
+      db['files'] = files
+      db.close()
+      return md
+
 def loaderImage(var):
     fn = var.group(1)
     return 'data:image/png;base64,{0}'.format(base64.encodestring(open(fn, 'rb').read()).decode('utf8').replace('\n', ''))
@@ -86,6 +120,7 @@ def doReplacements(script,updateUrl,downloadUrl):
 
     script = re.sub('@@INCLUDERAW:([0-9a-zA-Z_./-]+)@@', loaderRaw, script)
     script = re.sub('@@INCLUDESTRING:([0-9a-zA-Z_./-]+)@@', loaderString, script)
+    script = re.sub('@@INCLUDEMD:([0-9a-zA-Z_./-]+)@@', loaderMD, script)
     script = re.sub('@@INCLUDEIMAGE:([0-9a-zA-Z_./-]+)@@', loaderImage, script)
 
     script = script.replace('@@BUILDDATE@@', buildDate)