1 files changed, 50 insertions, 0 deletions
diff --git a/inliner.py b/inliner.py
new file mode 100755
index 0000000..b37c275
--- /dev/null
+++ b/inliner.py
@@ -0,0 +1,50 @@
+#!/usr/bin/env python
+
+import base64
+import mimetypes
+import os.path
+import re
+import sys
+
+ABSURL_RE = re.compile(r'''^(?:[a-z0-9+.-]+:|/)''')
+def repl(func, base):
+    def g(m):
+        urlstr = m.group(1)
+        if urlstr[0] in ('"', "'"):
+            urlstr = urlstr[1:-1]
+        if ABSURL_RE.match(urlstr):
+            return m.group(0)
+        try:
+            return func(os.path.join(base, urlstr))
+        except FileNotFoundError:
+            return m.group(0)
+    return g
+
+SCRIPT_RE = re.compile(r'''<script src=("[^"]+"|'[^']+')>\s*</script>''')
+def scriptrepl(urlstr):
+    with open(urlstr, 'r') as f:
+        script = f.read()
+    if '</script>' in script:
+        raise Exception('</script> in script')
+    return f'<script>{script}</script>'
+
+CSS_RE = re.compile(r'''<link rel="stylesheet" href=("[^"]+"|'[^']+')>''')
+def cssrepl(urlstr):
+    with open(urlstr, 'r') as f:
+        return '<style>' + f.read() + '</style>'
+
+URL_RE = re.compile(r'''\burl\(("[^"]+"|'[^']+'|[^)]+)\)''')
+def urlrepl(urlstr):
+    with open(urlstr, 'rb') as f:
+        return ('url(data:' + mimetypes.guess_type(urlstr)[0] +
+            ';base64,' + base64.b64encode(f.read()).decode('ascii') + ')')
+
+if __name__ == '__main__':
+    mimetypes.add_type('font/woff2', '.woff2')
+    base = os.path.dirname(sys.argv[1])
+    with open(sys.argv[1], 'r') as f:
+        buf = f.read()
+    buf = SCRIPT_RE.sub(repl(scriptrepl, base), buf)
+    buf = CSS_RE.sub(repl(cssrepl, base), buf)
+    buf = URL_RE.sub(repl(urlrepl, base), buf)
+    sys.stdout.write(buf)