# # Copyright 21 May 2005 - (c) 2005 Jake Edge # Copyright 2005-2007 Matt Mackall # # This software may be used and distributed according to the terms # of the GNU General Public License, incorporated herein by reference. import cStringIO, zlib, tempfile, errno, os, sys from mercurial import util, streamclone from mercurial.node import bin, hex from mercurial import changegroup as changegroupmod 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): resp = ' '.join(web.capabilities()) 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 header.startswith('HG') and not header.startswith('HG10'): raise ValueError('unknown bundle version') elif header not in changegroupmod.bundletypes: raise ValueError('unknown bundle compression type') gen = changegroupmod.unbundle(header, fp) # send addchangegroup output to client oldio = sys.stdout, sys.stderr sys.stderr = sys.stdout = cStringIO.StringIO() try: url = 'remote:%s:%s' % (proto, req.env.get('REMOTE_HOST', '')) try: ret = web.repo.addchangegroup(gen, 'serve', url) except util.Abort, inst: sys.stdout.write("abort: %s\n" % inst) ret = 0 finally: val = sys.stdout.getvalue() sys.stdout, sys.stderr = oldio req.write('%d\n' % ret) req.write(val) finally: del lock except ValueError, inst: req.write('0\n') req.write(str(inst) + '\n') 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)