Mon Jul 31 04:10:20 UTC 2006  Alberto Bertogli <albertito@gmail.com>
  * Implement url and scriptname autodetection.
  This patch implements autodetection of the url and scriptname of darcsweb.
  It's based on a suggestion from Tobias Gruetzmacher.
  
  It relies on variables according to the CGI/1.1 standard, and works only if
  cache is not enabled. If it is, the variables must be set manually as before.
  
  The problem with the cache is multi-host access: if a page not in the cache is
  accesed as http://hosta/dw/..., then the cached page will reference "hosta".
  If then it's accessed from hostb, there will be a reference to hosta that it's
  possibly broken. It's actually a quite common case when you have localhost and
  external access.
diff -rN -u old-darcsweb/config.py.sample new-darcsweb/config.py.sample
--- old-darcsweb/config.py.sample	2013-07-29 08:49:25.000000000 +0000
+++ new-darcsweb/config.py.sample	2013-07-29 08:49:25.000000000 +0000
@@ -1,12 +1,6 @@
 
 # base configuration, common to all repos
 class base:
-	# this script's name, usually just "darcsweb.cgi" unless you rename it
-	myname = "darcsweb.cgi"
-
-	# our url, used only to generate RSS links, without the script name
-	myurl = "http://example.com/darcsweb"
-
 	# location of the darcs logo
 	darcslogo = "darcs.png"
 
@@ -16,6 +10,14 @@
 	# the CSS file to use
 	cssfile = 'style.css'
 
+	# this script's name, usually just "darcsweb.cgi" unless you rename
+	# it; if you leave this commented it will be detected automatically
+	#myname = "darcsweb.cgi"
+
+	# our url, used only to generate RSS links, without the script name;
+	# if you leave this commented it will be detected automatically
+	#myurl = "http://example.com/darcsweb"
+
 	# optionally, you can specify the path to the darcs executable; if you
 	# leave this commented, the one on $PATH will be used (this is
 	# normally what you want)
@@ -38,6 +40,8 @@
 	# fine.
 	# If you leave the entry commented, no cache will be ever used;
 	# otherwise the directory is assumed to exist and be writeable.
+	# If you use this option you must set the "myname" and "myurl"
+	# variables.
 	#cachedir = '/tmp/darcsweb-cache'
 
 	# By default, darcsweb's search looks in the last 100 commits; you can
diff -rN -u old-darcsweb/darcsweb.cgi new-darcsweb/darcsweb.cgi
--- old-darcsweb/darcsweb.cgi	2013-07-29 08:49:25.000000000 +0000
+++ new-darcsweb/darcsweb.cgi	2013-07-29 08:49:25.000000000 +0000
@@ -2057,6 +2057,7 @@
 
 def do_listrepos():
 	import config as all_configs
+	expand_multi_config(all_configs)
 
 	# the header here is special since we don't have a repo
 	print "Content-type: text/html; charset=utf-8\n"
@@ -2100,7 +2101,6 @@
 
 	# some python magic
 	alt = True
-	expand_multi_config(all_configs)
 	for conf in dir(all_configs):
 		if conf.startswith('__'):
 			continue
@@ -2123,7 +2123,7 @@
 </td>
 </tr>
 		""" % {
-			'myname': all_configs.base.myname,
+			'myname': config.myname,
 			'dname': name,
 			'name': urllib.quote(name),
 			'desc': shorten_str(desc, 60)
@@ -2229,13 +2229,29 @@
 
 	# fill the configuration
 	base = all_configs.base
-	config.myname = base.myname
-	config.myurl = base.myurl
+	if 'myname' not in dir(base):
+		# SCRIPT_NAME has the full path, we only take the file name
+		config.myname = os.path.basename(os.environ['SCRIPT_NAME'])
+	else:
+		config.myname = base.myname
+
+	if 'myurl' not in dir(base) and 'cachedir' not in dir(base):
+		n = os.environ['SERVER_NAME']
+		p = os.environ['SERVER_PORT']
+		s = os.environ['SCRIPT_NAME']
+		if p == '80':
+			p = ''
+		else:
+			p = ':' + p
+		config.myurl = 'http://%s%s%s' % (n, p, s)
+	else:
+		config.myurl = base.myurl
+
 	config.darcslogo = base.darcslogo
 	config.darcsfav = base.darcsfav
 	config.cssfile = base.cssfile
 	if name:
-		config.myreponame = base.myname + '?r=' + urllib.quote(name)
+		config.myreponame = config.myname + '?r=' + urllib.quote(name)
 		config.reponame = c.reponame
 		config.repodesc = c.repodesc
 		config.repodir = c.repodir