Mercurial > hg
view mercurial/hgweb/__init__.py @ 2355:eb08fb4d41e1
Splitting up hgweb so it's easier to change.
author | Eric Hopper <hopper@omnifarious.org> |
---|---|
date | Wed, 31 May 2006 08:03:29 -0700 |
parents | f789602ba840 |
children | 2db831b33e8f |
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# hgweb.py - web interface to a mercurial repository # # Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net> # Copyright 2005 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms # of the GNU General Public License, incorporated herein by reference. import os, cgi, sys import mimetypes from mercurial.demandload import demandload demandload(globals(), "time re socket zlib errno ConfigParser tempfile") demandload(globals(), "mercurial:mdiff,ui,hg,util,archival,templater") demandload(globals(), "mercurial.hgweb.request:hgrequest") demandload(globals(), "mercurial.hgweb.server:create_server") from mercurial.node import * from mercurial.i18n import gettext as _ def up(p): if p[0] != "/": p = "/" + p if p[-1] == "/": p = p[:-1] up = os.path.dirname(p) if up == "/": return "/" return up + "/" def get_mtime(repo_path): hg_path = os.path.join(repo_path, ".hg") cl_path = os.path.join(hg_path, "00changelog.i") if os.path.exists(os.path.join(cl_path)): return os.stat(cl_path).st_mtime else: return os.stat(hg_path).st_mtime def staticfile(directory, fname): """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('/') path = directory 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 "" path = os.path.join(path, part) try: os.stat(path) ct = mimetypes.guess_type(path)[0] or "text/plain" return "Content-type: %s\n\n%s" % (ct, file(path).read()) except (TypeError, OSError): # illegal fname or unreadable file return "" class hgweb(object): def __init__(self, repo, name=None): if type(repo) == type(""): self.repo = hg.repository(ui.ui(), repo) else: self.repo = repo self.mtime = -1 self.reponame = name self.archives = 'zip', 'gz', 'bz2' def refresh(self): mtime = get_mtime(self.repo.root) if mtime != self.mtime: self.mtime = mtime self.repo = hg.repository(self.repo.ui, self.repo.root) self.maxchanges = int(self.repo.ui.config("web", "maxchanges", 10)) self.maxfiles = int(self.repo.ui.config("web", "maxfiles", 10)) self.allowpull = self.repo.ui.configbool("web", "allowpull", True) def archivelist(self, nodeid): for i in self.archives: if self.repo.ui.configbool("web", "allow" + i, False): yield {"type" : i, "node" : nodeid, "url": ""} def listfiles(self, files, mf): for f in files[:self.maxfiles]: yield self.t("filenodelink", node=hex(mf[f]), file=f) if len(files) > self.maxfiles: yield self.t("fileellipses") def listfilediffs(self, files, changeset): for f in files[:self.maxfiles]: yield self.t("filedifflink", node=hex(changeset), file=f) if len(files) > self.maxfiles: yield self.t("fileellipses") def siblings(self, siblings=[], rev=None, hiderev=None, **args): if not rev: rev = lambda x: "" siblings = [s for s in siblings if s != nullid] if len(siblings) == 1 and rev(siblings[0]) == hiderev: return for s in siblings: yield dict(node=hex(s), rev=rev(s), **args) def renamelink(self, fl, node): r = fl.renamed(node) if r: return [dict(file=r[0], node=hex(r[1]))] return [] def showtag(self, t1, node=nullid, **args): for t in self.repo.nodetags(node): yield self.t(t1, tag=t, **args) def diff(self, node1, node2, files): def filterfiles(filters, files): l = [x for x in files if x in filters] for t in filters: if t and t[-1] != os.sep: t += os.sep l += [x for x in files if x.startswith(t)] return l parity = [0] def diffblock(diff, f, fn): yield self.t("diffblock", lines=prettyprintlines(diff), parity=parity[0], file=f, filenode=hex(fn or nullid)) parity[0] = 1 - parity[0] def prettyprintlines(diff): for l in diff.splitlines(1): if l.startswith('+'): yield self.t("difflineplus", line=l) elif l.startswith('-'): yield self.t("difflineminus", line=l) elif l.startswith('@'): yield self.t("difflineat", line=l) else: yield self.t("diffline", line=l) r = self.repo cl = r.changelog mf = r.manifest change1 = cl.read(node1) change2 = cl.read(node2) mmap1 = mf.read(change1[0]) mmap2 = mf.read(change2[0]) date1 = util.datestr(change1[2]) date2 = util.datestr(change2[2]) modified, added, removed, deleted, unknown = r.changes(node1, node2) if files: modified, added, removed = map(lambda x: filterfiles(files, x), (modified, added, removed)) diffopts = self.repo.ui.diffopts() showfunc = diffopts['showfunc'] ignorews = diffopts['ignorews'] for f in modified: to = r.file(f).read(mmap1[f]) tn = r.file(f).read(mmap2[f]) yield diffblock(mdiff.unidiff(to, date1, tn, date2, f, showfunc=showfunc, ignorews=ignorews), f, tn) for f in added: to = None tn = r.file(f).read(mmap2[f]) yield diffblock(mdiff.unidiff(to, date1, tn, date2, f, showfunc=showfunc, ignorews=ignorews), f, tn) for f in removed: to = r.file(f).read(mmap1[f]) tn = None yield diffblock(mdiff.unidiff(to, date1, tn, date2, f, showfunc=showfunc, ignorews=ignorews), f, tn) def changelog(self, pos): def changenav(**map): def seq(factor, maxchanges=None): if maxchanges: yield maxchanges if maxchanges >= 20 and maxchanges <= 40: yield 50 else: yield 1 * factor yield 3 * factor for f in seq(factor * 10): yield f l = [] last = 0 for f in seq(1, self.maxchanges): if f < self.maxchanges or f <= last: continue if f > count: break last = f r = "%d" % f if pos + f < count: l.append(("+" + r, pos + f)) if pos - f >= 0: l.insert(0, ("-" + r, pos - f)) yield {"rev": 0, "label": "(0)"} for label, rev in l: yield {"label": label, "rev": rev} yield {"label": "tip", "rev": "tip"} def changelist(**map): parity = (start - end) & 1 cl = self.repo.changelog l = [] # build a list in forward order for efficiency for i in range(start, end): n = cl.node(i) changes = cl.read(n) hn = hex(n) l.insert(0, {"parity": parity, "author": changes[1], "parent": self.siblings(cl.parents(n), cl.rev, cl.rev(n) - 1), "child": self.siblings(cl.children(n), cl.rev, cl.rev(n) + 1), "changelogtag": self.showtag("changelogtag",n), "manifest": hex(changes[0]), "desc": changes[4], "date": changes[2], "files": self.listfilediffs(changes[3], n), "rev": i, "node": hn}) parity = 1 - parity for e in l: yield e cl = self.repo.changelog mf = cl.read(cl.tip())[0] count = cl.count() start = max(0, pos - self.maxchanges + 1) end = min(count, start + self.maxchanges) pos = end - 1 yield self.t('changelog', changenav=changenav, manifest=hex(mf), rev=pos, changesets=count, entries=changelist, archives=self.archivelist("tip")) def search(self, query): def changelist(**map): cl = self.repo.changelog count = 0 qw = query.lower().split() def revgen(): for i in range(cl.count() - 1, 0, -100): l = [] for j in range(max(0, i - 100), i): n = cl.node(j) changes = cl.read(n) l.append((n, j, changes)) l.reverse() for e in l: yield e for n, i, changes in revgen(): miss = 0 for q in qw: if not (q in changes[1].lower() or q in changes[4].lower() or q in " ".join(changes[3][:20]).lower()): miss = 1 break if miss: continue count += 1 hn = hex(n) yield self.t('searchentry', parity=count & 1, author=changes[1], parent=self.siblings(cl.parents(n), cl.rev), child=self.siblings(cl.children(n), cl.rev), changelogtag=self.showtag("changelogtag",n), manifest=hex(changes[0]), desc=changes[4], date=changes[2], files=self.listfilediffs(changes[3], n), rev=i, node=hn) if count >= self.maxchanges: break cl = self.repo.changelog mf = cl.read(cl.tip())[0] yield self.t('search', query=query, manifest=hex(mf), entries=changelist) def changeset(self, nodeid): cl = self.repo.changelog n = self.repo.lookup(nodeid) nodeid = hex(n) changes = cl.read(n) p1 = cl.parents(n)[0] files = [] mf = self.repo.manifest.read(changes[0]) for f in changes[3]: files.append(self.t("filenodelink", filenode=hex(mf.get(f, nullid)), file=f)) def diff(**map): yield self.diff(p1, n, None) yield self.t('changeset', diff=diff, rev=cl.rev(n), node=nodeid, parent=self.siblings(cl.parents(n), cl.rev), child=self.siblings(cl.children(n), cl.rev), changesettag=self.showtag("changesettag",n), manifest=hex(changes[0]), author=changes[1], desc=changes[4], date=changes[2], files=files, archives=self.archivelist(nodeid)) def filelog(self, f, filenode): cl = self.repo.changelog fl = self.repo.file(f) filenode = hex(fl.lookup(filenode)) count = fl.count() def entries(**map): l = [] parity = (count - 1) & 1 for i in range(count): n = fl.node(i) lr = fl.linkrev(n) cn = cl.node(lr) cs = cl.read(cl.node(lr)) l.insert(0, {"parity": parity, "filenode": hex(n), "filerev": i, "file": f, "node": hex(cn), "author": cs[1], "date": cs[2], "rename": self.renamelink(fl, n), "parent": self.siblings(fl.parents(n), fl.rev, file=f), "child": self.siblings(fl.children(n), fl.rev, file=f), "desc": cs[4]}) parity = 1 - parity for e in l: yield e yield self.t("filelog", file=f, filenode=filenode, entries=entries) def filerevision(self, f, node): fl = self.repo.file(f) n = fl.lookup(node) node = hex(n) text = fl.read(n) changerev = fl.linkrev(n) cl = self.repo.changelog cn = cl.node(changerev) cs = cl.read(cn) mfn = cs[0] mt = mimetypes.guess_type(f)[0] rawtext = text if util.binary(text): mt = mt or 'application/octet-stream' text = "(binary:%s)" % mt mt = mt or 'text/plain' def lines(): for l, t in enumerate(text.splitlines(1)): yield {"line": t, "linenumber": "% 6d" % (l + 1), "parity": l & 1} yield self.t("filerevision", file=f, filenode=node, path=up(f), text=lines(), raw=rawtext, mimetype=mt, rev=changerev, node=hex(cn), manifest=hex(mfn), author=cs[1], date=cs[2], parent=self.siblings(fl.parents(n), fl.rev, file=f), child=self.siblings(fl.children(n), fl.rev, file=f), rename=self.renamelink(fl, n), permissions=self.repo.manifest.readflags(mfn)[f]) def fileannotate(self, f, node): bcache = {} ncache = {} fl = self.repo.file(f) n = fl.lookup(node) node = hex(n) changerev = fl.linkrev(n) cl = self.repo.changelog cn = cl.node(changerev) cs = cl.read(cn) mfn = cs[0] def annotate(**map): parity = 1 last = None for r, l in fl.annotate(n): try: cnode = ncache[r] except KeyError: cnode = ncache[r] = self.repo.changelog.node(r) try: name = bcache[r] except KeyError: cl = self.repo.changelog.read(cnode) bcache[r] = name = self.repo.ui.shortuser(cl[1]) if last != cnode: parity = 1 - parity last = cnode yield {"parity": parity, "node": hex(cnode), "rev": r, "author": name, "file": f, "line": l} yield self.t("fileannotate", file=f, filenode=node, annotate=annotate, path=up(f), rev=changerev, node=hex(cn), manifest=hex(mfn), author=cs[1], date=cs[2], rename=self.renamelink(fl, n), parent=self.siblings(fl.parents(n), fl.rev, file=f), child=self.siblings(fl.children(n), fl.rev, file=f), permissions=self.repo.manifest.readflags(mfn)[f]) def manifest(self, mnode, path): man = self.repo.manifest mn = man.lookup(mnode) mnode = hex(mn) mf = man.read(mn) rev = man.rev(mn) changerev = man.linkrev(mn) node = self.repo.changelog.node(changerev) mff = man.readflags(mn) files = {} p = path[1:] if p and p[-1] != "/": p += "/" l = len(p) for f,n in mf.items(): if f[:l] != p: continue remain = f[l:] if "/" in remain: short = remain[:remain.find("/") + 1] # bleah files[short] = (f, None) else: short = os.path.basename(remain) files[short] = (f, n) def filelist(**map): parity = 0 fl = files.keys() fl.sort() for f in fl: full, fnode = files[f] if not fnode: continue yield {"file": full, "manifest": mnode, "filenode": hex(fnode), "parity": parity, "basename": f, "permissions": mff[full]} parity = 1 - parity def dirlist(**map): parity = 0 fl = files.keys() fl.sort() for f in fl: full, fnode = files[f] if fnode: continue yield {"parity": parity, "path": os.path.join(path, f), "manifest": mnode, "basename": f[:-1]} parity = 1 - parity yield self.t("manifest", manifest=mnode, rev=rev, node=hex(node), path=path, up=up(path), fentries=filelist, dentries=dirlist, archives=self.archivelist(hex(node))) def tags(self): cl = self.repo.changelog mf = cl.read(cl.tip())[0] i = self.repo.tagslist() i.reverse() def entries(notip=False, **map): parity = 0 for k,n in i: if notip and k == "tip": continue yield {"parity": parity, "tag": k, "tagmanifest": hex(cl.read(n)[0]), "date": cl.read(n)[2], "node": hex(n)} parity = 1 - parity yield self.t("tags", manifest=hex(mf), entries=lambda **x: entries(False, **x), entriesnotip=lambda **x: entries(True, **x)) def summary(self): cl = self.repo.changelog mf = cl.read(cl.tip())[0] i = self.repo.tagslist() i.reverse() def tagentries(**map): parity = 0 count = 0 for k,n in i: if k == "tip": # skip tip continue; count += 1 if count > 10: # limit to 10 tags break; c = cl.read(n) m = c[0] t = c[2] yield self.t("tagentry", parity = parity, tag = k, node = hex(n), date = t, tagmanifest = hex(m)) parity = 1 - parity def changelist(**map): parity = 0 cl = self.repo.changelog l = [] # build a list in forward order for efficiency for i in range(start, end): n = cl.node(i) changes = cl.read(n) hn = hex(n) t = changes[2] l.insert(0, self.t( 'shortlogentry', parity = parity, author = changes[1], manifest = hex(changes[0]), desc = changes[4], date = t, rev = i, node = hn)) parity = 1 - parity yield l cl = self.repo.changelog mf = cl.read(cl.tip())[0] count = cl.count() start = max(0, count - self.maxchanges) end = min(count, start + self.maxchanges) pos = end - 1 yield self.t("summary", desc = self.repo.ui.config("web", "description", "unknown"), owner = (self.repo.ui.config("ui", "username") or # preferred self.repo.ui.config("web", "contact") or # deprecated self.repo.ui.config("web", "author", "unknown")), # also lastchange = (0, 0), # FIXME manifest = hex(mf), tags = tagentries, shortlog = changelist) def filediff(self, file, changeset): cl = self.repo.changelog n = self.repo.lookup(changeset) changeset = hex(n) p1 = cl.parents(n)[0] cs = cl.read(n) mf = self.repo.manifest.read(cs[0]) def diff(**map): yield self.diff(p1, n, [file]) yield self.t("filediff", file=file, filenode=hex(mf.get(file, nullid)), node=changeset, rev=self.repo.changelog.rev(n), parent=self.siblings(cl.parents(n), cl.rev), child=self.siblings(cl.children(n), cl.rev), diff=diff) archive_specs = { 'bz2': ('application/x-tar', 'tbz2', '.tar.bz2', 'x-bzip2'), 'gz': ('application/x-tar', 'tgz', '.tar.gz', 'x-gzip'), 'zip': ('application/zip', 'zip', '.zip', None), } def archive(self, req, cnode, type): reponame = re.sub(r"\W+", "-", os.path.basename(self.reponame)) name = "%s-%s" % (reponame, short(cnode)) mimetype, artype, extension, encoding = self.archive_specs[type] headers = [('Content-type', mimetype), ('Content-disposition', 'attachment; filename=%s%s' % (name, extension))] if encoding: headers.append(('Content-encoding', encoding)) req.header(headers) archival.archive(self.repo, req.out, cnode, artype, prefix=name) # add tags to things # tags -> list of changesets corresponding to tags # find tag, changeset, file def run(self, req=hgrequest()): def clean(path): p = util.normpath(path) if p[:2] == "..": raise "suspicious path" return p def header(**map): yield self.t("header", **map) def footer(**map): yield self.t("footer", motd=self.repo.ui.config("web", "motd", ""), **map) def expand_form(form): shortcuts = { 'cl': [('cmd', ['changelog']), ('rev', None)], 'cs': [('cmd', ['changeset']), ('node', None)], 'f': [('cmd', ['file']), ('filenode', None)], 'fl': [('cmd', ['filelog']), ('filenode', None)], 'fd': [('cmd', ['filediff']), ('node', None)], 'fa': [('cmd', ['annotate']), ('filenode', None)], 'mf': [('cmd', ['manifest']), ('manifest', None)], 'ca': [('cmd', ['archive']), ('node', None)], 'tags': [('cmd', ['tags'])], 'tip': [('cmd', ['changeset']), ('node', ['tip'])], 'static': [('cmd', ['static']), ('file', None)] } for k in shortcuts.iterkeys(): if form.has_key(k): for name, value in shortcuts[k]: if value is None: value = form[k] form[name] = value del form[k] self.refresh() expand_form(req.form) t = self.repo.ui.config("web", "templates", templater.templatepath()) static = self.repo.ui.config("web", "static", os.path.join(t,"static")) m = os.path.join(t, "map") style = self.repo.ui.config("web", "style", "") if req.form.has_key('style'): style = req.form['style'][0] if style: b = os.path.basename("map-" + style) p = os.path.join(t, b) if os.path.isfile(p): m = p port = req.env["SERVER_PORT"] port = port != "80" and (":" + port) or "" uri = req.env["REQUEST_URI"] if "?" in uri: uri = uri.split("?")[0] url = "http://%s%s%s" % (req.env["SERVER_NAME"], port, uri) if not self.reponame: self.reponame = (self.repo.ui.config("web", "name") or uri.strip('/') or self.repo.root) self.t = templater.templater(m, templater.common_filters, defaults={"url": url, "repo": self.reponame, "header": header, "footer": footer, }) if not req.form.has_key('cmd'): req.form['cmd'] = [self.t.cache['default'],] cmd = req.form['cmd'][0] if cmd == 'changelog': hi = self.repo.changelog.count() - 1 if req.form.has_key('rev'): hi = req.form['rev'][0] try: hi = self.repo.changelog.rev(self.repo.lookup(hi)) except hg.RepoError: req.write(self.search(hi)) # XXX redirect to 404 page? return req.write(self.changelog(hi)) elif cmd == 'changeset': req.write(self.changeset(req.form['node'][0])) elif cmd == 'manifest': req.write(self.manifest(req.form['manifest'][0], clean(req.form['path'][0]))) elif cmd == 'tags': req.write(self.tags()) elif cmd == 'summary': req.write(self.summary()) elif cmd == 'filediff': req.write(self.filediff(clean(req.form['file'][0]), req.form['node'][0])) elif cmd == 'file': req.write(self.filerevision(clean(req.form['file'][0]), req.form['filenode'][0])) elif cmd == 'annotate': req.write(self.fileannotate(clean(req.form['file'][0]), req.form['filenode'][0])) elif cmd == 'filelog': req.write(self.filelog(clean(req.form['file'][0]), req.form['filenode'][0])) elif cmd == 'heads': req.httphdr("application/mercurial-0.1") h = self.repo.heads() req.write(" ".join(map(hex, h)) + "\n") elif cmd == 'branches': req.httphdr("application/mercurial-0.1") nodes = [] if req.form.has_key('nodes'): nodes = map(bin, req.form['nodes'][0].split(" ")) for b in self.repo.branches(nodes): req.write(" ".join(map(hex, b)) + "\n") elif cmd == 'between': req.httphdr("application/mercurial-0.1") nodes = [] if req.form.has_key('pairs'): pairs = [map(bin, p.split("-")) for p in req.form['pairs'][0].split(" ")] for b in self.repo.between(pairs): req.write(" ".join(map(hex, b)) + "\n") elif cmd == 'changegroup': req.httphdr("application/mercurial-0.1") nodes = [] if not self.allowpull: return if req.form.has_key('roots'): nodes = map(bin, req.form['roots'][0].split(" ")) z = zlib.compressobj() f = self.repo.changegroup(nodes, 'serve') while 1: chunk = f.read(4096) if not chunk: break req.write(z.compress(chunk)) req.write(z.flush()) elif cmd == 'archive': changeset = self.repo.lookup(req.form['node'][0]) type = req.form['type'][0] if (type in self.archives and self.repo.ui.configbool("web", "allow" + type, False)): self.archive(req, changeset, type) return req.write(self.t("error")) elif cmd == 'static': fname = req.form['file'][0] req.write(staticfile(static, fname) or self.t("error", error="%r not found" % fname)) else: req.write(self.t("error")) # This is a stopgap class hgwebdir(object): def __init__(self, config): def cleannames(items): return [(name.strip(os.sep), path) for name, path in items] self.motd = "" self.repos_sorted = ('name', False) if isinstance(config, (list, tuple)): self.repos = cleannames(config) self.repos_sorted = ('', False) elif isinstance(config, dict): self.repos = cleannames(config.items()) self.repos.sort() else: cp = ConfigParser.SafeConfigParser() cp.read(config) self.repos = [] if cp.has_section('web') and cp.has_option('web', 'motd'): self.motd = cp.get('web', 'motd') if cp.has_section('paths'): self.repos.extend(cleannames(cp.items('paths'))) if cp.has_section('collections'): for prefix, root in cp.items('collections'): for path in util.walkrepos(root): repo = os.path.normpath(path) name = repo if name.startswith(prefix): name = name[len(prefix):] self.repos.append((name.lstrip(os.sep), repo)) self.repos.sort() def run(self, req=hgrequest()): def header(**map): yield tmpl("header", **map) def footer(**map): yield tmpl("footer", motd=self.motd, **map) m = os.path.join(templater.templatepath(), "map") tmpl = templater.templater(m, templater.common_filters, defaults={"header": header, "footer": footer}) def archivelist(ui, nodeid, url): for i in ['zip', 'gz', 'bz2']: if ui.configbool("web", "allow" + i, False): yield {"type" : i, "node": nodeid, "url": url} def entries(sortcolumn="", descending=False, **map): rows = [] parity = 0 for name, path in self.repos: u = ui.ui() try: u.readconfig(os.path.join(path, '.hg', 'hgrc')) except IOError: pass get = u.config url = ('/'.join([req.env["REQUEST_URI"].split('?')[0], name]) .replace("//", "/")) # update time with local timezone try: d = (get_mtime(path), util.makedate()[1]) except OSError: continue contact = (get("ui", "username") or # preferred get("web", "contact") or # deprecated get("web", "author", "")) # also description = get("web", "description", "") name = get("web", "name", name) row = dict(contact=contact or "unknown", contact_sort=contact.upper() or "unknown", name=name, name_sort=name, url=url, description=description or "unknown", description_sort=description.upper() or "unknown", lastchange=d, lastchange_sort=d[1]-d[0], archives=archivelist(u, "tip", url)) if (not sortcolumn or (sortcolumn, descending) == self.repos_sorted): # fast path for unsorted output row['parity'] = parity parity = 1 - parity yield row else: rows.append((row["%s_sort" % sortcolumn], row)) if rows: rows.sort() if descending: rows.reverse() for key, row in rows: row['parity'] = parity parity = 1 - parity yield row virtual = req.env.get("PATH_INFO", "").strip('/') if virtual: real = dict(self.repos).get(virtual) if real: try: hgweb(real).run(req) except IOError, inst: req.write(tmpl("error", error=inst.strerror)) except hg.RepoError, inst: req.write(tmpl("error", error=str(inst))) else: req.write(tmpl("notfound", repo=virtual)) else: if req.form.has_key('static'): static = os.path.join(templater.templatepath(), "static") fname = req.form['static'][0] req.write(staticfile(static, fname) or tmpl("error", error="%r not found" % fname)) else: sortable = ["name", "description", "contact", "lastchange"] sortcolumn, descending = self.repos_sorted if req.form.has_key('sort'): sortcolumn = req.form['sort'][0] descending = sortcolumn.startswith('-') if descending: sortcolumn = sortcolumn[1:] if sortcolumn not in sortable: sortcolumn = "" sort = [("sort_%s" % column, "%s%s" % ((not descending and column == sortcolumn) and "-" or "", column)) for column in sortable] req.write(tmpl("index", entries=entries, sortcolumn=sortcolumn, descending=descending, **dict(sort)))