Mercurial > hg
view mercurial/hgweb/protocol.py @ 5993:948a41e77902
hgweb: explicit response status
author | Dirkjan Ochtman <dirkjan@ochtman.nl> |
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date | Fri, 01 Feb 2008 10:31:13 +0100 |
parents | 5be210afe1b8 |
children | c050548307a4 |
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# # Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net> # Copyright 2005-2007 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 cStringIO, zlib, bz2, tempfile, errno, os, sys from mercurial import util, streamclone from mercurial.i18n import gettext as _ from mercurial.node import * from common import HTTP_OK, HTTP_NOT_FOUND, HTTP_SERVER_ERROR # __all__ is populated with the allowed commands. Be sure to add to it if # you're adding a new command, or the new command won't work. __all__ = [ 'lookup', 'heads', 'branches', 'between', 'changegroup', 'changegroupsubset', 'capabilities', 'unbundle', 'stream_out', ] HGTYPE = 'application/mercurial-0.1' def lookup(web, req): try: r = hex(web.repo.lookup(req.form['key'][0])) success = 1 except Exception,inst: r = str(inst) success = 0 resp = "%s %s\n" % (success, r) req.respond(HTTP_OK, HGTYPE, length=len(resp)) req.write(resp) def heads(web, req): resp = " ".join(map(hex, web.repo.heads())) + "\n" req.respond(HTTP_OK, HGTYPE, length=len(resp)) req.write(resp) def branches(web, req): nodes = [] if 'nodes' in req.form: nodes = map(bin, req.form['nodes'][0].split(" ")) resp = cStringIO.StringIO() for b in web.repo.branches(nodes): resp.write(" ".join(map(hex, b)) + "\n") resp = resp.getvalue() req.respond(HTTP_OK, HGTYPE, length=len(resp)) req.write(resp) def between(web, req): if 'pairs' in req.form: pairs = [map(bin, p.split("-")) for p in req.form['pairs'][0].split(" ")] resp = cStringIO.StringIO() for b in web.repo.between(pairs): resp.write(" ".join(map(hex, b)) + "\n") resp = resp.getvalue() req.respond(HTTP_OK, HGTYPE, length=len(resp)) req.write(resp) def changegroup(web, req): req.respond(HTTP_OK, HGTYPE) nodes = [] if not web.allowpull: return if 'roots' in req.form: nodes = map(bin, req.form['roots'][0].split(" ")) z = zlib.compressobj() f = web.repo.changegroup(nodes, 'serve') while 1: chunk = f.read(4096) if not chunk: break req.write(z.compress(chunk)) req.write(z.flush()) def changegroupsubset(web, req): req.respond(HTTP_OK, HGTYPE) bases = [] heads = [] if not web.allowpull: return if 'bases' in req.form: bases = [bin(x) for x in req.form['bases'][0].split(' ')] if 'heads' in req.form: heads = [bin(x) for x in req.form['heads'][0].split(' ')] z = zlib.compressobj() f = web.repo.changegroupsubset(bases, heads, 'serve') while 1: chunk = f.read(4096) if not chunk: break req.write(z.compress(chunk)) req.write(z.flush()) def capabilities(web, req): caps = ['lookup', 'changegroupsubset'] if web.configbool('server', 'uncompressed'): caps.append('stream=%d' % web.repo.changelog.version) # XXX: make configurable and/or share code with do_unbundle: unbundleversions = ['HG10GZ', 'HG10BZ', 'HG10UN'] if unbundleversions: caps.append('unbundle=%s' % ','.join(unbundleversions)) resp = ' '.join(caps) req.respond(HTTP_OK, HGTYPE, length=len(resp)) req.write(resp) def unbundle(web, req): def bail(response, headers={}): length = int(req.env['CONTENT_LENGTH']) for s in util.filechunkiter(req, limit=length): # drain incoming bundle, else client will not see # response when run outside cgi script pass req.header(headers.items()) req.respond(HTTP_OK, HGTYPE) req.write('0\n') req.write(response) # require ssl by default, auth info cannot be sniffed and # replayed ssl_req = web.configbool('web', 'push_ssl', True) if ssl_req: if req.env.get('wsgi.url_scheme') != 'https': bail(_('ssl required\n')) return proto = 'https' else: proto = 'http' # do not allow push unless explicitly allowed if not web.check_perm(req, 'push', False): bail(_('push not authorized\n'), headers={'status': '401 Unauthorized'}) return their_heads = req.form['heads'][0].split(' ') def check_heads(): heads = map(hex, web.repo.heads()) return their_heads == [hex('force')] or their_heads == heads # fail early if possible if not check_heads(): bail(_('unsynced changes\n')) return req.respond(HTTP_OK, HGTYPE) # do not lock repo until all changegroup data is # streamed. save to temporary file. fd, tempname = tempfile.mkstemp(prefix='hg-unbundle-') fp = os.fdopen(fd, 'wb+') try: length = int(req.env['CONTENT_LENGTH']) for s in util.filechunkiter(req, limit=length): fp.write(s) try: lock = web.repo.lock() try: if not check_heads(): req.write('0\n') req.write(_('unsynced changes\n')) return fp.seek(0) header = fp.read(6) if not header.startswith("HG"): # old client with uncompressed bundle def generator(f): yield header for chunk in f: yield chunk elif not header.startswith("HG10"): req.write("0\n") req.write(_("unknown bundle version\n")) return elif header == "HG10GZ": def generator(f): zd = zlib.decompressobj() for chunk in f: yield zd.decompress(chunk) elif header == "HG10BZ": def generator(f): zd = bz2.BZ2Decompressor() zd.decompress("BZ") for chunk in f: yield zd.decompress(chunk) elif header == "HG10UN": def generator(f): for chunk in f: yield chunk else: req.write("0\n") req.write(_("unknown bundle compression type\n")) return gen = generator(util.filechunkiter(fp, 4096)) # send addchangegroup output to client old_stdout = sys.stdout sys.stdout = cStringIO.StringIO() try: url = 'remote:%s:%s' % (proto, req.env.get('REMOTE_HOST', '')) try: ret = web.repo.addchangegroup( util.chunkbuffer(gen), 'serve', url) except util.Abort, inst: sys.stdout.write("abort: %s\n" % inst) ret = 0 finally: val = sys.stdout.getvalue() sys.stdout = old_stdout req.write('%d\n' % ret) req.write(val) finally: del lock except (OSError, IOError), inst: req.write('0\n') filename = getattr(inst, 'filename', '') # Don't send our filesystem layout to the client if filename.startswith(web.repo.root): filename = filename[len(web.repo.root)+1:] else: filename = '' error = getattr(inst, 'strerror', 'Unknown error') if inst.errno == errno.ENOENT: code = HTTP_NOT_FOUND else: code = HTTP_SERVER_ERROR req.respond(code) req.write('%s: %s\n' % (error, filename)) finally: fp.close() os.unlink(tempname) def stream_out(web, req): req.respond(HTTP_OK, HGTYPE) streamclone.stream_out(web.repo, req, untrusted=True)