eu.cloud4soa.c4sgitservice.utils.Util.java Source code

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Here is the source code for eu.cloud4soa.c4sgitservice.utils.Util.java

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/*
 *  Copyright 2013 Cloud4SOA, www.cloud4soa.eu
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package eu.cloud4soa.c4sgitservice.utils;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.stereotype.Component;

import java.io.*;

/**
 * Created with IntelliJ IDEA.
 * User: pgouvas
 * Date: 8/21/12
 * Time: 12:54 PM
 * To change this template use File | Settings | File Templates.
 */
@Component
public class Util {

    protected final Log logger = LogFactory.getLog(getClass());

    public static String readfile(String filename) throws Exception {
        String ret = "";
        File file = new File(filename);
        int ch;
        StringBuffer strContent = new StringBuffer("");
        FileInputStream fin = null;
        try {
            fin = new FileInputStream(file);
            while ((ch = fin.read()) != -1)
                strContent.append((char) ch);
            fin.close();
        } catch (Exception e) {
            throw e;
        }
        ret = strContent.toString();
        return ret;
    }

    public static String createAuthorizedKeysSegment(String proxyexecutable, String key, String pubkey) {
        //TODO add this command="/home/ubitech/proxy-git username",no-X11-forwarding,no-pty,no-port-forwarding,no-agent-forwarding
        String ret = "";
        String command = " command=\"" + proxyexecutable
                + " username\",no-X11-forwarding,no-pty,no-port-forwarding,no-agent-forwarding ";
        ret = "#" + key + "\n" + command + " " + pubkey + "\n" + "#" + key + "end" + "\n";
        return ret;
    }

    public static String createProxyGitSegment(String proxyid, String proxyname, String url, String reponame) {
        String ret = "";
        ret = "#proxy" + proxyid
                + "                                                                                             \n"
                + "REPO=\"" + reponame
                + "\"                                                                                         \n"
                + "if [ \"$repo\" == \"'" + proxyname
                + "'\" ]; then                                                                 \n"
                + "        exec /usr/bin/ssh -oBatchMode=yes -i \"$C4SSERVER_KEY\" " + url
                + " \"$cmd\" \"'$REPO'\"                  \n"
                + "fi                                                                                                            \n"
                + "#proxy" + proxyid
                + "end                                                                                         \n";
        return ret;
    }

    public static synchronized void appendToFile(String filename, String text) {
        FileWriter fWriter = null;
        BufferedWriter writer = null;
        try {
            fWriter = new FileWriter(filename, true);
            writer = new BufferedWriter(fWriter);
            writer.append(text);
            writer.newLine();
            writer.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static String createSedBlockForAuthorizedKeys(String pubkeyid) {
        String ret = "";
        ret = " /^#" + pubkeyid + "/,/" + "#" + pubkeyid + "end" + "/d ";
        return ret;
    }

    public static String createSedBlockForProxyGit(String tag) {
        String ret = "";
        ret = " /^#proxy" + tag + "/,/" + "#proxy" + tag + "end" + "/d ";
        return ret;
    }

    public static synchronized int replaceBlockWithSedForAuthorizedKeys(String filename, String pubkeyid) {
        int retvalue = 1; //1=ERROR 0=OK

        try {
            String sedblock = createSedBlockForAuthorizedKeys(pubkeyid);
            System.out.println(" sed -e " + sedblock + " " + filename);
            String[] command = new String[] { "sed", "-i", // -i is for replace // -e is used for piping
                    sedblock, filename };
            System.out.println(command.toString());
            Process child = Runtime.getRuntime().exec(command);
            child.waitFor();
            //Get the input stream and read from it
            InputStream in = child.getInputStream();
            int c;
            while ((c = in.read()) != -1) {
                System.out.print((char) c);
            }
            in.close();
            retvalue = child.exitValue();
            System.out.println("Replace file returned: " + retvalue);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return retvalue;
    }

    public static synchronized int replaceBlockWithSedForProxyGit(String filename, String tag) {
        int retvalue = 1; //1=ERROR 0=OK

        try {
            String sedblock = createSedBlockForProxyGit(tag);
            System.out.println(" sed -e " + sedblock + " " + filename);
            String[] command = new String[] { "sed", "-i", // -i is for replace // -e is used for piping
                    sedblock, filename };
            System.out.println(command.toString());
            Process child = Runtime.getRuntime().exec(command);
            child.waitFor();
            //Get the input stream and read from it
            InputStream in = child.getInputStream();
            int c;
            while ((c = in.read()) != -1) {
                System.out.print((char) c);
            }
            in.close();
            retvalue = child.exitValue();
            System.out.println("Replace file returned: " + retvalue);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return retvalue;
    }

}