--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/upmana/mercurial/hgweb/common.py	Tue Nov 10 14:11:28 2009 -0600
@@ -0,0 +1,105 @@
+# hgweb/common.py - Utility functions needed by hgweb_mod and hgwebdir_mod
+#
+# Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net>
+# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
+#
+# This software may be used and distributed according to the terms of the
+# GNU General Public License version 2, incorporated herein by reference.
+
+import errno, mimetypes, os
+
+HTTP_OK = 200
+HTTP_BAD_REQUEST = 400
+HTTP_UNAUTHORIZED = 401
+HTTP_FORBIDDEN = 403
+HTTP_NOT_FOUND = 404
+HTTP_METHOD_NOT_ALLOWED = 405
+HTTP_SERVER_ERROR = 500
+
+class ErrorResponse(Exception):
+    def __init__(self, code, message=None, headers=[]):
+        Exception.__init__(self)
+        self.code = code
+        self.headers = headers
+        if message is not None:
+            self.message = message
+        else:
+            self.message = _statusmessage(code)
+
+def _statusmessage(code):
+    from BaseHTTPServer import BaseHTTPRequestHandler
+    responses = BaseHTTPRequestHandler.responses
+    return responses.get(code, ('Error', 'Unknown error'))[0]
+
+def statusmessage(code):
+    return '%d %s' % (code, _statusmessage(code))
+
+def get_mtime(repo_path):
+    store_path = os.path.join(repo_path, ".hg")
+    if not os.path.isdir(os.path.join(store_path, "data")):
+        store_path = os.path.join(store_path, "store")
+    cl_path = os.path.join(store_path, "00changelog.i")
+    if os.path.exists(cl_path):
+        return os.stat(cl_path).st_mtime
+    else:
+        return os.stat(store_path).st_mtime
+
+def staticfile(directory, fname, req):
+    """return a file inside directory with guessed Content-Type header
+
+    fname always uses '/' as directory separator and isn't allowed to
+    contain unusual path components.
+    Content-Type is guessed using the mimetypes module.
+    Return an empty string if fname is illegal or file not found.
+
+    """
+    parts = fname.split('/')
+    for part in parts:
+        if (part in ('', os.curdir, os.pardir) or
+            os.sep in part or os.altsep is not None and os.altsep in part):
+            return ""
+    fpath = os.path.join(*parts)
+    if isinstance(directory, str):
+        directory = [directory]
+    for d in directory:
+        path = os.path.join(d, fpath)
+        if os.path.exists(path):
+            break
+    try:
+        os.stat(path)
+        ct = mimetypes.guess_type(path)[0] or "text/plain"
+        req.respond(HTTP_OK, ct, length = os.path.getsize(path))
+        return file(path, 'rb').read()
+    except TypeError:
+        raise ErrorResponse(HTTP_SERVER_ERROR, 'illegal filename')
+    except OSError, err:
+        if err.errno == errno.ENOENT:
+            raise ErrorResponse(HTTP_NOT_FOUND)
+        else:
+            raise ErrorResponse(HTTP_SERVER_ERROR, err.strerror)
+
+def paritygen(stripecount, offset=0):
+    """count parity of horizontal stripes for easier reading"""
+    if stripecount and offset:
+        # account for offset, e.g. due to building the list in reverse
+        count = (stripecount + offset) % stripecount
+        parity = (stripecount + offset) / stripecount & 1
+    else:
+        count = 0
+        parity = 0
+    while True:
+        yield parity
+        count += 1
+        if stripecount and count >= stripecount:
+            parity = 1 - parity
+            count = 0
+
+def get_contact(config):
+    """Return repo contact information or empty string.
+
+    web.contact is the primary source, but if that is not set, try
+    ui.username or $EMAIL as a fallback to display something useful.
+    """
+    return (config("web", "contact") or
+            config("ui", "username") or
+            os.environ.get("EMAIL") or "")