1 | /*
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2 | * To change this template, choose Tools | Templates
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3 | * and open the template in the editor.
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4 | */
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5 | package web.servlets;
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6 |
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7 | import java.io.BufferedReader;
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8 | import java.io.BufferedWriter;
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9 | import java.io.File;
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10 | import java.io.FileInputStream;
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11 | import java.io.FileOutputStream;
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12 | import java.io.IOException;
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13 | import java.io.InputStreamReader;
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14 | import java.io.OutputStreamWriter;
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15 | import java.io.Reader;
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16 | import java.io.Writer;
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17 | import javax.servlet.RequestDispatcher;
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18 | import javax.servlet.ServletConfig;
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19 | import javax.servlet.ServletException;
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20 | import javax.servlet.http.HttpServlet;
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21 | import javax.servlet.http.HttpServletRequest;
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22 | import javax.servlet.http.HttpServletResponse;
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23 | import monogram.plugin.PluginConfiguration;
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24 | import monogram.plugin.PluginManager;
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25 | import org.apache.log4j.*;
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26 |
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27 | /**
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28 | *
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29 | * @author OEM
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30 | */
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31 | public class DirectInput extends HttpServlet {
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32 |
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33 | private final String UNEXPECTED_ERROR = "An unexpected error has occurred. Please try again or contact the web administrator if the problem persists.";
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34 | private final String UTF8_ENCODING = "utf-8";
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35 | public static boolean DI; // This will be used in a test in the mongramRestorer to add html to highlight the changes on the webpage output.
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36 | private File tmpdir;
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37 | //Create an instance of the Logger object created for this class in log4j.properties
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38 | static Logger logger = Logger.getLogger(web.servlets.DirectInput.class.getName());
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39 |
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40 | @Override
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41 | public void init(ServletConfig config) throws ServletException {
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42 | super.init(config);
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43 | tmpdir = new File((String) config.getServletContext().getAttribute("tmpdir"));
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44 | }
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45 |
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46 | /**
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47 | * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
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48 | * @param request servlet request
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49 | * @param response servlet response
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50 | * @throws ServletException if a servlet-specific error occurs
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51 | * @throws IOException if an I/O error occurs
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52 | */
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53 | protected void processRequest(HttpServletRequest request, HttpServletResponse response)
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54 | throws ServletException, IOException {
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55 | }
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56 |
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57 | // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
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58 | /**
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59 | * Handles the HTTP <code>GET</code> method.
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60 | * @param request servlet request
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61 | * @param response servlet response
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62 | * @throws ServletException if a servlet-specific error occurs
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63 | * @throws IOException if an I/O error occurs
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64 | */
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65 | @Override
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66 | protected void doGet(HttpServletRequest request, HttpServletResponse response)
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67 | throws ServletException, IOException {
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68 | processRequest(request, response);
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69 | }
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70 |
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71 | /**
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72 | * Handles the HTTP <code>POST</code> method.
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73 | * @param request servlet request
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74 | * @param response servlet response
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75 | * @throws ServletException if a servlet-specific error occurs
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76 | * @throws IOException if an I/O error occurs
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77 | */
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78 | @Override
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79 | protected void doPost(HttpServletRequest request, HttpServletResponse response)
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80 | throws ServletException, IOException {
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81 | request.setCharacterEncoding("utf-8");
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82 | DI = true;
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83 | final String fragment = request.getParameter("fragment");
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84 | final String lang = request.getParameter("lang");
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85 | final String preserveMacrons = request.getParameter("preserveExistingMacrons") != null ? request.getParameter("preserveExistingMacrons") : "false";
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86 | final String options = request.getParameter("options");
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87 | final String path = "/jsp" + (lang.equals("en") ? "/en" : "/mi");
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88 | //Write the input to a temporary file.
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89 | File file = File.createTempFile("mi-tmp-", ".txt", tmpdir);
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90 | write(file, "utf-8", fragment);
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91 |
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92 | //Create a fileview
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93 | PluginConfiguration configuration = new PluginConfiguration();
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94 | configuration.setFile(file);
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95 | configuration.setCharsetEncoding("utf-8");
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96 | configuration.setFileType(".txt");
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97 | configuration.setPreserveExistingMacrons(preserveMacrons.equals("true"));
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98 | //Restore the file.
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99 | PluginManager pluginManager = new PluginManager(tmpdir);
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100 | File restoredFile = null;
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101 | try {
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102 | restoredFile = pluginManager.run(configuration);
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103 | //Read the file into a String then delete
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104 | String restoredFragment = read(restoredFile, "utf-8");
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105 |
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106 | request.setAttribute("fragment2", restoredFragment);
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107 | request.setAttribute("old", fragment);
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108 | request.setAttribute("options", options);
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109 | request.setAttribute("preserveMacrons", preserveMacrons);
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110 | RequestDispatcher dispatcher = this.getServletContext().getRequestDispatcher(path + "/main.jsp");
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111 | dispatcher.forward(request, response);
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112 | //Generate an "info" level logger message including the input('fragment') and output('restoredFragment')
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113 | logger.info("Input:"+fragment+"Output: "+restoredFragment);
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114 | } catch (Exception e) {
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115 | request.setAttribute("errorMessage", UNEXPECTED_ERROR);
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116 | forward(path + "/error.jsp", request, response);
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117 | } finally {
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118 | file.delete();
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119 | if (restoredFile != null) {
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120 | restoredFile.delete();
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121 | }
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122 | }
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123 | }
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124 |
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125 | /**
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126 | * Forwards a request from a servlet to another resource on the server.
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127 | * @param path Path to forward to.
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128 | * @param request
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129 | * @param response
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130 | * @throws ServletException
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131 | * @throws IOException
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132 | */
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133 | private void forward(String path, HttpServletRequest request, HttpServletResponse response)
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134 | throws ServletException, IOException {
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135 | final RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(path);
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136 | dispatcher.forward(request, response);
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137 | }
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138 |
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139 | /**
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140 | * Writes the fragment to the file.
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141 | * @param file The file to write to.
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142 | * @param fragment The String to write to the file.
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143 | */
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144 | private void write(File file, String charsetEncoding, String fragment) {
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145 | BufferedWriter out = null;
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146 | try {
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147 | out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file), charsetEncoding));
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148 | out.write(fragment);
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149 | } catch (IOException e) {
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150 | e.printStackTrace();
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151 | } finally {
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152 | close(out);
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153 | }
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154 | }
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155 |
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156 | /**
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157 | * Reads the contents of the file.
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158 | * @param file The file to read.
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159 | * @param charsetEncoding The character set encoding of the file.
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160 | * @return The contents of the file.
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161 | */
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162 | private String read(File file, String charsetEncoding) {
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163 | final StringBuilder buffer = new StringBuilder();
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164 | BufferedReader reader = null;
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165 | try {
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166 | reader = new BufferedReader(new InputStreamReader(new FileInputStream(file), charsetEncoding));
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167 | final char[] chars = new char[1024];
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168 | int numRead = 0;
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169 | while ((numRead = reader.read(chars)) > -1) {
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170 | buffer.append(String.valueOf(chars, 0, numRead));
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171 | }
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172 | } catch (IOException e) {
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173 | e.printStackTrace();
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174 | } finally {
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175 | close(reader);
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176 | }
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177 | return buffer.toString();
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178 | }
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179 |
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180 | /**
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181 | * Close the writer.
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182 | * @param writer The Writer to close.
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183 | */
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184 | private void close(Writer writer) {
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185 | if (writer != null) {
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186 | try {
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187 | writer.close();
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188 | } catch (IOException e) {
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189 | e.printStackTrace();
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190 | }
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191 | }
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192 | }
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193 |
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194 | /**
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195 | * Close the reader.
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196 | * @param reader The Reader to close.
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197 | */
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198 | private void close(Reader reader) {
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199 | if (reader != null) {
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200 | try {
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201 | reader.close();
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202 | } catch (IOException e) {
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203 | e.printStackTrace();
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204 | }
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205 | }
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206 | }
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207 |
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208 | /**
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209 | * Returns a short description of the servlet.
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210 | * @return a String containing servlet description
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211 | */
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212 | @Override
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213 | public String getServletInfo() {
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214 | return "Short description";
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215 | }// </editor-fold>
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216 | }
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