diff options
Diffstat (limited to 'src/de/blinkt/openvpn/ConfigParser.java')
-rw-r--r-- | src/de/blinkt/openvpn/ConfigParser.java | 559 |
1 files changed, 0 insertions, 559 deletions
diff --git a/src/de/blinkt/openvpn/ConfigParser.java b/src/de/blinkt/openvpn/ConfigParser.java deleted file mode 100644 index dc605bbc..00000000 --- a/src/de/blinkt/openvpn/ConfigParser.java +++ /dev/null @@ -1,559 +0,0 @@ -package de.blinkt.openvpn; - -import java.io.BufferedReader; -import java.io.IOException; -import java.io.Reader; -import java.util.HashMap; -import java.util.Locale; -import java.util.Vector; - -//! Openvpn Config FIle Parser, probably not 100% accurate but close enough - -// And rember, this is valid :) -// --<foo> -// bar -// </foo> -public class ConfigParser { - - - private HashMap<String, Vector<Vector<String>>> options = new HashMap<String, Vector<Vector<String>>>(); - public void parseConfig(Reader reader) throws IOException, ConfigParseError { - - - BufferedReader br =new BufferedReader(reader); - - @SuppressWarnings("unused") - int lineno=0; - - while (true){ - String line = br.readLine(); - if(line==null) - break; - lineno++; - Vector<String> args = parseline(line); - if(args.size() ==0) - continue; - - - if(args.get(0).startsWith("--")) - args.set(0, args.get(0).substring(2)); - - checkinlinefile(args,br); - - String optionname = args.get(0); - if(!options.containsKey(optionname)) { - options.put(optionname, new Vector<Vector<String>>()); - } - options.get(optionname).add(args); - } - } - - private void checkinlinefile(Vector<String> args, BufferedReader br) throws IOException, ConfigParseError { - String arg0 = args.get(0); - // CHeck for <foo> - if(arg0.startsWith("<") && arg0.endsWith(">")) { - String argname = arg0.substring(1, arg0.length()-1); - String inlinefile = VpnProfile.INLINE_TAG; - - String endtag = String.format("</%s>",argname); - do { - String line = br.readLine(); - if(line==null){ - throw new ConfigParseError(String.format("No endtag </%s> for starttag <%s> found",argname,argname)); - } - if(line.equals(endtag)) - break; - else { - inlinefile+=line; - inlinefile+= "\n"; - } - } while(true); - - args.clear(); - args.add(argname); - args.add(inlinefile); - } - - } - - enum linestate { - initial, - readin_single_quote - , reading_quoted, reading_unquoted, done} - - private boolean space(char c) { - // I really hope nobody is using zero bytes inside his/her config file - // to sperate parameter but here we go: - return Character.isWhitespace(c) || c == '\0'; - - } - - public class ConfigParseError extends Exception { - private static final long serialVersionUID = -60L; - - public ConfigParseError(String msg) { - super(msg); - } - } - - - // adapted openvpn's parse function to java - private Vector<String> parseline(String line) throws ConfigParseError { - Vector<String> parameters = new Vector<String>(); - - if (line.length()==0) - return parameters; - - - linestate state = linestate.initial; - boolean backslash = false; - char out=0; - - int pos=0; - String currentarg=""; - - do { - // Emulate the c parsing ... - char in; - if(pos < line.length()) - in = line.charAt(pos); - else - in = '\0'; - - if (!backslash && in == '\\' && state != linestate.readin_single_quote) - { - backslash = true; - } - else - { - if (state == linestate.initial) - { - if (!space (in)) - { - if (in == ';' || in == '#') /* comment */ - break; - if (!backslash && in == '\"') - state = linestate.reading_quoted; - else if (!backslash && in == '\'') - state = linestate.readin_single_quote; - else - { - out = in; - state = linestate.reading_unquoted; - } - } - } - else if (state == linestate.reading_unquoted) - { - if (!backslash && space (in)) - state = linestate.done; - else - out = in; - } - else if (state == linestate.reading_quoted) - { - if (!backslash && in == '\"') - state = linestate.done; - else - out = in; - } - else if (state == linestate.readin_single_quote) - { - if (in == '\'') - state = linestate.done; - else - out = in; - } - - if (state == linestate.done) - { - /* ASSERT (parm_len > 0); */ - state = linestate.initial; - parameters.add(currentarg); - currentarg = ""; - out =0; - } - - if (backslash && out!=0) - { - if (!(out == '\\' || out == '\"' || space (out))) - { - throw new ConfigParseError("Options warning: Bad backslash ('\\') usage"); - } - } - backslash = false; - } - - /* store parameter character */ - if (out!=0) - { - currentarg+=out; - } - } while (pos++ < line.length()); - - return parameters; - } - - - final String[] unsupportedOptions = { "config", - "connection", - "proto-force", - "remote-random", - "tls-server" - - }; - - // Ignore all scripts - // in most cases these won't work and user who wish to execute scripts will - // figure out themselves - final String[] ignoreOptions = { "tls-client", - "askpass", - "auth-nocache", - "up", - "down", - "route-up", - "ipchange", - "route-up", - "route-pre-down", - "auth-user-pass-verify", - "dhcp-release", - "dhcp-renew", - "dh", - "management-hold", - "management", - "management-query-passwords", - "pause-exit", - "persist-key", - "register-dns", - "route-delay", - "route-gateway", - "route-metric", - "route-method", - "status", - "script-security", - "show-net-up", - "suppress-timestamps", - "tmp-dir", - "tun-ipv6", - "topology", - "win-sys", - }; - - - // This method is far too long - public VpnProfile convertProfile() throws ConfigParseError{ - boolean noauthtypeset=true; - VpnProfile np = new VpnProfile("converted Profile"); - // Pull, client, tls-client - np.clearDefaults(); - - if(options.containsKey("client") || options.containsKey("pull")) { - np.mUsePull=true; - options.remove("pull"); - options.remove("client"); - } - - Vector<String> secret = getOption("secret", 1, 2); - if(secret!=null) - { - np.mAuthenticationType=VpnProfile.TYPE_STATICKEYS; - noauthtypeset=false; - np.mUseTLSAuth=true; - np.mTLSAuthFilename=secret.get(1); - if(secret.size()==3) - np.mTLSAuthDirection=secret.get(2); - - } - - Vector<Vector<String>> routes = getAllOption("route", 1, 4); - if(routes!=null) { - String routeopt = ""; - for(Vector<String> route:routes){ - String netmask = "255.255.255.255"; - if(route.size() >= 3) - netmask = route.get(2); - String net = route.get(1); - try { - CIDRIP cidr = new CIDRIP(net, netmask); - routeopt+=cidr.toString() + " "; - } catch (ArrayIndexOutOfBoundsException aioob) { - throw new ConfigParseError("Could not parse netmask of route " + netmask); - } catch (NumberFormatException ne) { - throw new ConfigParseError("Could not parse netmask of route " + netmask); - } - - } - np.mCustomRoutes=routeopt; - } - - // Also recognize tls-auth [inline] direction ... - Vector<Vector<String>> tlsauthoptions = getAllOption("tls-auth", 1, 2); - if(tlsauthoptions!=null) { - for(Vector<String> tlsauth:tlsauthoptions) { - if(tlsauth!=null) - { - if(!tlsauth.get(1).equals("[inline]")) { - np.mTLSAuthFilename=tlsauth.get(1); - np.mUseTLSAuth=true; - } - if(tlsauth.size()==3) - np.mTLSAuthDirection=tlsauth.get(2); - } - } - } - - Vector<String> direction = getOption("key-direction", 1, 1); - if(direction!=null) - np.mTLSAuthDirection=direction.get(1); - - - if(getAllOption("redirect-gateway", 0, 5) != null) - np.mUseDefaultRoute=true; - - Vector<String> dev =getOption("dev",1,1); - Vector<String> devtype =getOption("dev-type",1,1); - - if( (devtype !=null && devtype.get(1).equals("tun")) || - (dev!=null && dev.get(1).startsWith("tun")) || - (devtype ==null && dev == null) ) { - //everything okay - } else { - throw new ConfigParseError("Sorry. Only tun mode is supported. See the FAQ for more detail"); - } - - - - Vector<String> mode =getOption("mode",1,1); - if (mode != null){ - if(!mode.get(1).equals("p2p")) - throw new ConfigParseError("Invalid mode for --mode specified, need p2p"); - } - - Vector<String> port = getOption("port", 1,1); - if(port!=null){ - np.mServerPort = port.get(1); - } - - Vector<String> proto = getOption("proto", 1,1); - if(proto!=null){ - np.mUseUdp=isUdpProto(proto.get(1));; - } - - // Parse remote config - Vector<String> remote = getOption("remote",1,3); - if(remote != null){ - switch (remote.size()) { - case 4: - np.mUseUdp=isUdpProto(remote.get(3)); - case 3: - np.mServerPort = remote.get(2); - case 2: - np.mServerName = remote.get(1); - } - } - - Vector<Vector<String>> dhcpoptions = getAllOption("dhcp-option", 2, 2); - if(dhcpoptions!=null) { - for(Vector<String> dhcpoption:dhcpoptions) { - String type=dhcpoption.get(1); - String arg = dhcpoption.get(2); - if(type.equals("DOMAIN")) { - np.mSearchDomain=dhcpoption.get(2); - } else if(type.equals("DNS")) { - np.mOverrideDNS=true; - if(np.mDNS1.equals(VpnProfile.DEFAULT_DNS1)) - np.mDNS1=arg; - else - np.mDNS2=arg; - } - } - } - - Vector<String> ifconfig = getOption("ifconfig", 2, 2); - if(ifconfig!=null) { - CIDRIP cidr = new CIDRIP(ifconfig.get(1), ifconfig.get(2)); - np.mIPv4Address=cidr.toString(); - } - - if(getOption("remote-random-hostname", 0, 0)!=null) - np.mUseRandomHostname=true; - - if(getOption("float", 0, 0)!=null) - np.mUseFloat=true; - - if(getOption("comp-lzo", 0, 1)!=null) - np.mUseLzo=true; - - Vector<String> cipher = getOption("cipher", 1, 1); - if(cipher!=null) - np.mCipher= cipher.get(1); - - Vector<String> ca = getOption("ca",1,1); - if(ca!=null){ - np.mCaFilename = ca.get(1); - } - - Vector<String> cert = getOption("cert",1,1); - if(cert!=null){ - np.mClientCertFilename = cert.get(1); - np.mAuthenticationType = VpnProfile.TYPE_CERTIFICATES; - noauthtypeset=false; - } - Vector<String> key= getOption("key",1,1); - if(key!=null) - np.mClientKeyFilename=key.get(1); - - Vector<String> pkcs12 = getOption("pkcs12",1,1); - if(pkcs12!=null) { - np.mPKCS12Filename = pkcs12.get(1); - np.mAuthenticationType = VpnProfile.TYPE_KEYSTORE; - noauthtypeset=false; - } - - Vector<String> tlsremote = getOption("tls-remote",1,1); - if(tlsremote!=null){ - np.mRemoteCN = tlsremote.get(1); - np.mCheckRemoteCN=true; - } - - Vector<String> verb = getOption("verb",1,1); - if(verb!=null){ - np.mVerb=verb.get(1); - } - - - if(getOption("nobind", 0, 0) != null) - np.mNobind=true; - - if(getOption("persist-tun", 0,0) != null) - np.mPersistTun=true; - - Vector<String> connectretry = getOption("connect-retry", 1, 1); - if(connectretry!=null) - np.mConnectRetry =connectretry.get(1); - - Vector<String> connectretrymax = getOption("connect-retry-max", 1, 1); - if(connectretrymax!=null) - np.mConnectRetryMax =connectretrymax.get(1); - - Vector<Vector<String>> remotetls = getAllOption("remote-cert-tls", 1, 1); - if(remotetls!=null) - if(remotetls.get(0).get(1).equals("server")) - np.mExpectTLSCert=true; - else - options.put("remotetls",remotetls); - - Vector<String> authuser = getOption("auth-user-pass",0,1); - if(authuser !=null){ - if(noauthtypeset) { - np.mAuthenticationType=VpnProfile.TYPE_USERPASS; - } else if(np.mAuthenticationType==VpnProfile.TYPE_CERTIFICATES) { - np.mAuthenticationType=VpnProfile.TYPE_USERPASS_CERTIFICATES; - } else if(np.mAuthenticationType==VpnProfile.TYPE_KEYSTORE) { - np.mAuthenticationType=VpnProfile.TYPE_USERPASS_KEYSTORE; - } - if(authuser.size()>1) { - // Set option value to password get to get canche to embed later. - np.mUsername=null; - np.mPassword=authuser.get(1); - useEmbbedUserAuth(np,authuser.get(1)); - } - - } - - - // Check the other options - - checkIgnoreAndInvalidOptions(np); - fixup(np); - - return np; - } - - private boolean isUdpProto(String proto) throws ConfigParseError { - boolean isudp; - if(proto.equals("udp") || proto.equals("udp6")) - isudp=true; - else if (proto.equals("tcp-client") || - proto.equals("tcp") || - proto.equals("tcp6") || - proto.endsWith("tcp6-client")) - isudp =false; - else - throw new ConfigParseError("Unsupported option to --proto " + proto); - return isudp; - } - - static public void useEmbbedUserAuth(VpnProfile np,String inlinedata) - { - String data = inlinedata.replace(VpnProfile.INLINE_TAG, ""); - String[] parts = data.split("\n"); - if(parts.length >= 2) { - np.mUsername=parts[0]; - np.mPassword=parts[1]; - } - } - - private void checkIgnoreAndInvalidOptions(VpnProfile np) throws ConfigParseError { - for(String option:unsupportedOptions) - if(options.containsKey(option)) - throw new ConfigParseError(String.format("Unsupported Option %s encountered in config file. Aborting",option)); - - for(String option:ignoreOptions) - // removing an item which is not in the map is no error - options.remove(option); - - if(options.size()> 0) { - String custom = "# These Options were found in the config file do not map to config settings:\n"; - - for(Vector<Vector<String>> option:options.values()) { - for(Vector<String> optionsline: option) { - for (String arg : optionsline) - custom+= VpnProfile.openVpnEscape(arg) + " "; - } - custom+="\n"; - - } - np.mCustomConfigOptions = custom; - np.mUseCustomConfig=true; - - } - } - - - private void fixup(VpnProfile np) { - if(np.mRemoteCN.equals(np.mServerName)) { - np.mRemoteCN=""; - } - } - - private Vector<String> getOption(String option, int minarg, int maxarg) throws ConfigParseError { - Vector<Vector<String>> alloptions = getAllOption(option, minarg, maxarg); - if(alloptions==null) - return null; - else - return alloptions.lastElement(); - } - - - private Vector<Vector<String>> getAllOption(String option, int minarg, int maxarg) throws ConfigParseError { - Vector<Vector<String>> args = options.get(option); - if(args==null) - return null; - - for(Vector<String> optionline:args) - - if(optionline.size()< (minarg+1) || optionline.size() > maxarg+1) { - String err = String.format(Locale.getDefault(),"Option %s has %d parameters, expected between %d and %d", - option,optionline.size()-1,minarg,maxarg ); - throw new ConfigParseError(err); - } - options.remove(option); - return args; - } - -} - - - - |