Add icons to index files

With URLs that may include any number of directory levels before
even the prefix of our upload, it's difficult (though not impossible)
to upload the icons to a fixed location in the container and
reference that location.  A more self-contained approach is just
to embed the icon data directly into the HTML.  That is what is
done here.

Change-Id: I12342aa479bac41eb3b401d1e92689a56b3c2a2b

roles/upload-logs-swift/library/zuul_swift_upload.py

@@ -47,23 +47,74 @@ POST_ATTEMPTS = 3
 
 # Map mime types to apache icons
 APACHE_MIME_ICON_MAP = {
-    '_default': '/icons/unknown.png',
-    'application/gzip': '/icons/compressed.png',
-    'application/directory': '/icons/folder.png',
-    'text/html': '/icons/text.png',
-    'text/plain': '/icons/text.png',
+    '_default': 'unknown.png',
+    'application/gzip': 'compressed.png',
+    'application/directory': 'folder.png',
+    'text/html': 'text.png',
+    'text/plain': 'text.png',
 }
 
 # Map mime types to apache icons
 APACHE_FILE_ICON_MAP = {
-    '..': '/icons/back.png',
+    '..': 'back.png',
 }
 
+# These icon files are from the Apache project and are in the public
+# domain.
+ICON_IMAGES = {
+    'back.png': 'iVBORw0KGgoAAAANSUhEUgAAABQAAAAWCAMAAAD3n0w0AAAAElBMVEX/'
+                '///M//+ZmZlmZmYzMzMAAACei5rnAAAAAnRSTlP/AOW3MEoAAABWSURB'
+                'VHjabdBBCgAhDEPRRpv7X3kwEMsQ//IRRC08urjRHbha5VLFUsVSxVI9'
+                'lmDh5hMpHD6n0EgoiZG0DNINpnWlcVXaRix76e1/8dddcL6nG0Ri9gHj'
+                'tgSXKYeLBgAAAABJRU5ErkJggg==',
+    'compressed.png': 'iVBORw0KGgoAAAANSUhEUgAAABQAAAAWCAMAAAD3n0w0AAADAFBM'
+                      'VEX//////8z//5n//2b//zP//wD/zP//zMz/zJn/zGb/zDP/zAD/'
+                      'mf//mcz/mZn/mWb/mTP/mQD/Zv//Zsz/Zpn/Zmb/ZjP/ZgD/M///'
+                      'M8z/M5n/M2b/MzP/MwD/AP//AMz/AJn/AGb/ADP/AADM///M/8zM'
+                      '/5nM/2bM/zPM/wDMzP/MzMzMzJnMzGbMzDPMzADMmf/MmczMmZnM'
+                      'mWbMmTPMmQDMZv/MZszMZpnMZmbMZjPMZgDMM//MM8zMM5nMM2bM'
+                      'MzPMMwDMAP/MAMzMAJnMAGbMADPMAACZ//+Z/8yZ/5mZ/2aZ/zOZ'
+                      '/wCZzP+ZzMyZzJmZzGaZzDOZzACZmf+ZmcyZmZmZmWaZmTOZmQCZ'
+                      'Zv+ZZsyZZpmZZmaZZjOZZgCZM/+ZM8yZM5mZM2aZMzOZMwCZAP+Z'
+                      'AMyZAJmZAGaZADOZAABm//9m/8xm/5lm/2Zm/zNm/wBmzP9mzMxm'
+                      'zJlmzGZmzDNmzABmmf9mmcxmmZlmmWZmmTNmmQBmZv9mZsxmZplm'
+                      'ZmZmZjNmZgBmM/9mM8xmM5lmM2ZmMzNmMwBmAP9mAMxmAJlmAGZm'
+                      'ADNmAAAz//8z/8wz/5kz/2Yz/zMz/wAzzP8zzMwzzJkzzGYzzDMz'
+                      'zAAzmf8zmcwzmZkzmWYzmTMzmQAzZv8zZswzZpkzZmYzZjMzZgAz'
+                      'M/8zM8wzM5kzM2YzMzMzMwAzAP8zAMwzAJkzAGYzADMzAAAA//8A'
+                      '/8wA/5kA/2YA/zMA/wAAzP8AzMwAzJkAzGYAzDMAzAAAmf8AmcwA'
+                      'mZkAmWYAmTMAmQAAZv8AZswAZpkAZmYAZjMAZgAAM/8AM8wAM5kA'
+                      'M2YAMzMAMwAAAP8AAMwAAJkAAGYAADPuAADdAAC7AACqAACIAAB3'
+                      'AABVAABEAAAiAAARAAAA7gAA3QAAuwAAqgAAiAAAdwAAVQAARAAA'
+                      'IgAAEQAAAO4AAN0AALsAAKoAAIgAAHcAAFUAAEQAACIAABHu7u7d'
+                      '3d27u7uqqqqIiIh3d3dVVVVEREQiIiIREREAAAD7CIKZAAAAJXRS'
+                      'TlP///////////////////////////////////////////////8A'
+                      'P89CTwAAAGtJREFUeNp9z9ENgDAIhOEOco+dybVuEXasFMRDY/x5'
+                      '+xJCO6Znu6kSx7BhXyjtKBWWNlwW88Loid7hFRKBXiIYCMfMEYUQ'
+                      'QohC3CjFA5nIjqx1CqlDLGR/EhM5O06yvin0ftGOyIS7lV14AsQN'
+                      'aR7rMEBYAAAAAElFTkSuQmCC',
+    'folder.png': 'iVBORw0KGgoAAAANSUhEUgAAABQAAAAWCAMAAAD3n0w0AAAAElBMVEX/'
+                  '////zJnM//+ZZjMzMzMAAADCEvqoAAAAA3RSTlP//wDXyg1BAAAASElE'
+                  'QVR42s3KQQ6AQAhDUaXt/a/sQDrRJu7c+NmQB0e99B3lnqjT6cYx6zSI'
+                  'bV40n3D7psYMoBoz4w8/EdNYQsbGEjNxYSljXTEsA9O1pLTvAAAAAElF'
+                  'TkSuQmCC',
+    'text.png': 'iVBORw0KGgoAAAANSUhEUgAAABQAAAAWCAMAAAD3n0w0AAAAD1BMVEX/'
+                '///M//+ZmZkzMzMAAABVsTOVAAAAAnRSTlP/AOW3MEoAAABISURBVHja'
+                'tcrRCgAgCENRbf7/N7dKomGvngjhMsPLD4NdMPwia438NRIyxsaL/XQZ'
+                'hyxpkC6zyjLXGVXnkhqWJWIIrOgeinECLlUCjBCqNQoAAAAASUVORK5C'
+                'YII=',
+    'unknown.png': 'iVBORw0KGgoAAAANSUhEUgAAABQAAAAWCAMAAAD3n0w0AAAAD1BMVEX/'
+                   '///M//+ZmZkzMzMAAABVsTOVAAAAAnRSTlP/AOW3MEoAAABYSURBVHja'
+                   'ncvRDoAgDEPRruX/v1kmNHPBxMTLyzgD6FmsILg56g2hQnJkOco4yZhq'
+                   'tN5nYd5Zq0LsHblwxwP9GTCWsaGtoelANKzOlz/RfaLYUmLE6E28ALlN'
+                   'AupSdoFsAAAAAElFTkSuQmCC'}
+
 
 def get_mime_icon(mime, filename=''):
-    return (APACHE_FILE_ICON_MAP.get(filename) or
+    icon = (APACHE_FILE_ICON_MAP.get(filename) or
             APACHE_MIME_ICON_MAP.get(mime) or
             APACHE_MIME_ICON_MAP['_default'])
+    return "data:image/png;base64,%s" % ICON_IMAGES[icon]
 
 
 def sizeof_fmt(num, suffix='B'):