diff options
Diffstat (limited to 'paramiko/config.py')
| -rw-r--r-- | paramiko/config.py | 92 |
1 files changed, 57 insertions, 35 deletions
diff --git a/paramiko/config.py b/paramiko/config.py index 96ec9ef..20ca4aa 100644 --- a/paramiko/config.py +++ b/paramiko/config.py @@ -27,7 +27,6 @@ import re import socket SSH_PORT = 22 -proxy_re = re.compile(r"^(proxycommand)\s*=*\s*(.*)", re.I) class SSHConfig (object): @@ -41,6 +40,8 @@ class SSHConfig (object): .. versionadded:: 1.6 """ + SETTINGS_REGEX = re.compile(r'(\w+)(?:\s*=\s*|\s+)(.+)') + def __init__(self): """ Create a new OpenSSH config object. @@ -53,44 +54,39 @@ class SSHConfig (object): :param file file_obj: a file-like object to read the config file from """ + host = {"host": ['*'], "config": {}} for line in file_obj: line = line.rstrip('\r\n').lstrip() - if (line == '') or (line[0] == '#'): + if not line or line.startswith('#'): continue - if '=' in line: - # Ensure ProxyCommand gets properly split - if line.lower().strip().startswith('proxycommand'): - match = proxy_re.match(line) - key, value = match.group(1).lower(), match.group(2) - else: - key, value = line.split('=', 1) - key = key.strip().lower() - else: - # find first whitespace, and split there - i = 0 - while (i < len(line)) and not line[i].isspace(): - i += 1 - if i == len(line): - raise Exception('Unparsable line: %r' % line) - key = line[:i].lower() - value = line[i:].lstrip() + match = re.match(self.SETTINGS_REGEX, line) + if not match: + raise Exception("Unparsable line %s" % line) + key = match.group(1).lower() + value = match.group(2) + if key == 'host': self._config.append(host) - value = value.split() - host = {key: value, 'config': {}} - #identityfile, localforward, remoteforward keys are special cases, since they are allowed to be - # specified multiple times and they should be tried in order - # of specification. - - elif key in ['identityfile', 'localforward', 'remoteforward']: - if key in host['config']: - host['config'][key].append(value) - else: - host['config'][key] = [value] - elif key not in host['config']: - host['config'].update({key: value}) + host = { + 'host': self._get_hosts(value), + 'config': {} + } + else: + if value.startswith('"') and value.endswith('"'): + value = value[1:-1] + + #identityfile, localforward, remoteforward keys are special cases, since they are allowed to be + # specified multiple times and they should be tried in order + # of specification. + if key in ['identityfile', 'localforward', 'remoteforward']: + if key in host['config']: + host['config'][key].append(value) + else: + host['config'][key] = [value] + elif key not in host['config']: + host['config'][key] = value self._config.append(host) def lookup(self, hostname): @@ -111,8 +107,10 @@ class SSHConfig (object): :param str hostname: the hostname to lookup """ - matches = [config for config in self._config if - self._allowed(hostname, config['host'])] + matches = [ + config for config in self._config + if self._allowed(config['host'], hostname) + ] ret = {} for match in matches: @@ -128,7 +126,7 @@ class SSHConfig (object): ret = self._expand_variables(ret, hostname) return ret - def _allowed(self, hostname, hosts): + def _allowed(self, hosts, hostname): match = False for host in hosts: if host.startswith('!') and fnmatch.fnmatch(hostname, host[1:]): @@ -208,6 +206,30 @@ class SSHConfig (object): config[k] = config[k].replace(find, str(replace)) return config + def _get_hosts(self, host): + """ + Return a list of host_names from host value. + """ + i, length = 0, len(host) + hosts = [] + while i < length: + if host[i] == '"': + end = host.find('"', i + 1) + if end < 0: + raise Exception("Unparsable host %s" % host) + hosts.append(host[i + 1:end]) + i = end + 1 + elif not host[i].isspace(): + end = i + 1 + while end < length and not host[end].isspace() and host[end] != '"': + end += 1 + hosts.append(host[i:end]) + i = end + else: + i += 1 + + return hosts + class LazyFqdn(object): """ |