206 lines
6.6 KiB
Python
206 lines
6.6 KiB
Python
#
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# Copyright 21 May 2005 - (c) 2005 Jake Edge <jake@edge2.net>
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2, incorporated herein by reference.
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import cStringIO, zlib, tempfile, errno, os, sys, urllib
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from mercurial import util, streamclone
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from mercurial.node import bin, hex
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from mercurial import changegroup as changegroupmod
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from common import ErrorResponse, HTTP_OK, HTTP_NOT_FOUND, HTTP_SERVER_ERROR
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# __all__ is populated with the allowed commands. Be sure to add to it if
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# you're adding a new command, or the new command won't work.
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__all__ = [
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'lookup', 'heads', 'branches', 'between', 'changegroup',
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'changegroupsubset', 'capabilities', 'unbundle', 'stream_out',
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'branchmap',
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]
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HGTYPE = 'application/mercurial-0.1'
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def lookup(repo, req):
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try:
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r = hex(repo.lookup(req.form['key'][0]))
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success = 1
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except Exception, inst:
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r = str(inst)
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success = 0
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resp = "%s %s\n" % (success, r)
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req.respond(HTTP_OK, HGTYPE, length=len(resp))
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yield resp
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def heads(repo, req):
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resp = " ".join(map(hex, repo.heads())) + "\n"
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req.respond(HTTP_OK, HGTYPE, length=len(resp))
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yield resp
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def branchmap(repo, req):
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branches = repo.branchmap()
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heads = []
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for branch, nodes in branches.iteritems():
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branchname = urllib.quote(branch)
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branchnodes = [hex(node) for node in nodes]
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heads.append('%s %s' % (branchname, ' '.join(branchnodes)))
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resp = '\n'.join(heads)
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req.respond(HTTP_OK, HGTYPE, length=len(resp))
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yield resp
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def branches(repo, req):
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nodes = []
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if 'nodes' in req.form:
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nodes = map(bin, req.form['nodes'][0].split(" "))
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resp = cStringIO.StringIO()
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for b in repo.branches(nodes):
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resp.write(" ".join(map(hex, b)) + "\n")
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resp = resp.getvalue()
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req.respond(HTTP_OK, HGTYPE, length=len(resp))
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yield resp
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def between(repo, req):
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if 'pairs' in req.form:
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pairs = [map(bin, p.split("-"))
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for p in req.form['pairs'][0].split(" ")]
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resp = cStringIO.StringIO()
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for b in repo.between(pairs):
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resp.write(" ".join(map(hex, b)) + "\n")
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resp = resp.getvalue()
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req.respond(HTTP_OK, HGTYPE, length=len(resp))
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yield resp
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def changegroup(repo, req):
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req.respond(HTTP_OK, HGTYPE)
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nodes = []
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if 'roots' in req.form:
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nodes = map(bin, req.form['roots'][0].split(" "))
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z = zlib.compressobj()
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f = repo.changegroup(nodes, 'serve')
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while 1:
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chunk = f.read(4096)
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if not chunk:
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break
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yield z.compress(chunk)
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yield z.flush()
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def changegroupsubset(repo, req):
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req.respond(HTTP_OK, HGTYPE)
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bases = []
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heads = []
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if 'bases' in req.form:
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bases = [bin(x) for x in req.form['bases'][0].split(' ')]
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if 'heads' in req.form:
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heads = [bin(x) for x in req.form['heads'][0].split(' ')]
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z = zlib.compressobj()
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f = repo.changegroupsubset(bases, heads, 'serve')
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while 1:
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chunk = f.read(4096)
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if not chunk:
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break
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yield z.compress(chunk)
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yield z.flush()
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def capabilities(repo, req):
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caps = ['lookup', 'changegroupsubset', 'branchmap']
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if repo.ui.configbool('server', 'uncompressed', untrusted=True):
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caps.append('stream=%d' % repo.changelog.version)
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if changegroupmod.bundlepriority:
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caps.append('unbundle=%s' % ','.join(changegroupmod.bundlepriority))
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rsp = ' '.join(caps)
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req.respond(HTTP_OK, HGTYPE, length=len(rsp))
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yield rsp
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def unbundle(repo, req):
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proto = req.env.get('wsgi.url_scheme') or 'http'
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their_heads = req.form['heads'][0].split(' ')
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def check_heads():
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heads = map(hex, repo.heads())
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return their_heads == [hex('force')] or their_heads == heads
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# fail early if possible
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if not check_heads():
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req.drain()
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raise ErrorResponse(HTTP_OK, 'unsynced changes')
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# do not lock repo until all changegroup data is
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# streamed. save to temporary file.
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fd, tempname = tempfile.mkstemp(prefix='hg-unbundle-')
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fp = os.fdopen(fd, 'wb+')
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try:
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length = int(req.env['CONTENT_LENGTH'])
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for s in util.filechunkiter(req, limit=length):
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fp.write(s)
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try:
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lock = repo.lock()
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try:
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if not check_heads():
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raise ErrorResponse(HTTP_OK, 'unsynced changes')
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fp.seek(0)
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header = fp.read(6)
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if header.startswith('HG') and not header.startswith('HG10'):
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raise ValueError('unknown bundle version')
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elif header not in changegroupmod.bundletypes:
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raise ValueError('unknown bundle compression type')
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gen = changegroupmod.unbundle(header, fp)
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# send addchangegroup output to client
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oldio = sys.stdout, sys.stderr
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sys.stderr = sys.stdout = cStringIO.StringIO()
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try:
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url = 'remote:%s:%s:%s' % (
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proto,
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urllib.quote(req.env.get('REMOTE_HOST', '')),
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urllib.quote(req.env.get('REMOTE_USER', '')))
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try:
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ret = repo.addchangegroup(gen, 'serve', url)
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except util.Abort, inst:
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sys.stdout.write("abort: %s\n" % inst)
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ret = 0
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finally:
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val = sys.stdout.getvalue()
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sys.stdout, sys.stderr = oldio
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req.respond(HTTP_OK, HGTYPE)
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return '%d\n%s' % (ret, val),
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finally:
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lock.release()
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except ValueError, inst:
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raise ErrorResponse(HTTP_OK, inst)
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except (OSError, IOError), inst:
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filename = getattr(inst, 'filename', '')
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# Don't send our filesystem layout to the client
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if filename.startswith(repo.root):
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filename = filename[len(repo.root)+1:]
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else:
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filename = ''
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error = getattr(inst, 'strerror', 'Unknown error')
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if inst.errno == errno.ENOENT:
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code = HTTP_NOT_FOUND
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else:
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code = HTTP_SERVER_ERROR
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raise ErrorResponse(code, '%s: %s' % (error, filename))
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finally:
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fp.close()
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os.unlink(tempname)
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def stream_out(repo, req):
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req.respond(HTTP_OK, HGTYPE)
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try:
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for chunk in streamclone.stream_out(repo, untrusted=True):
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yield chunk
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except streamclone.StreamException, inst:
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yield str(inst)
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