1 | package ve.gob.cenditel.tibisaymovil; |
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2 | |
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3 | import java.io.BufferedInputStream; |
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4 | import java.io.File; |
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5 | import java.io.FileInputStream; |
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6 | import java.io.FileNotFoundException; |
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7 | import java.io.FileOutputStream; |
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8 | import java.io.IOException; |
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9 | import java.io.InputStream; |
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10 | import java.security.cert.X509Certificate; |
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11 | import java.text.SimpleDateFormat; |
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12 | import java.util.ArrayList; |
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13 | import java.util.Collections; |
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14 | import java.util.Date; |
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15 | |
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16 | import ee.sk.digidoc.DataFile; |
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17 | import ee.sk.digidoc.DigiDocException; |
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18 | import ee.sk.digidoc.SignedDoc; |
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19 | import ee.sk.digidoc.factory.DigiDocFactory; |
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20 | import ee.sk.digidoc.factory.Pkcs12SignatureFactory; |
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21 | import ee.sk.utils.ConfigManager; |
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22 | import ee.sk.xmlenc.EncryptedData; |
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23 | import ee.sk.xmlenc.factory.EncryptedDataParser; |
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24 | |
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25 | import ve.gob.cenditel.tibisaymovil.R; |
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26 | import android.app.Activity; |
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27 | import android.app.AlertDialog; |
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28 | import android.app.Dialog; |
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29 | import android.content.Context; |
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30 | import android.content.DialogInterface; |
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31 | import android.content.Intent; |
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32 | import android.graphics.drawable.Drawable; |
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33 | import android.net.Uri; |
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34 | import android.os.Bundle; |
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35 | import android.os.Environment; |
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36 | import android.util.Log; |
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37 | import android.view.LayoutInflater; |
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38 | import android.view.View; |
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39 | import android.view.ViewGroup; |
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40 | import android.view.View.OnClickListener; |
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41 | import android.view.Window; |
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42 | import android.webkit.MimeTypeMap; |
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43 | import android.widget.AdapterView; |
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44 | import android.widget.ArrayAdapter; |
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45 | import android.widget.BaseAdapter; |
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46 | import android.widget.Button; |
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47 | import android.widget.EditText; |
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48 | import android.widget.ImageView; |
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49 | import android.widget.LinearLayout; |
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50 | import android.widget.ListView; |
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51 | import android.widget.RadioButton; |
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52 | import android.widget.TextView; |
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53 | import android.widget.AdapterView.OnItemClickListener; |
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54 | import android.widget.Toast; |
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55 | |
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56 | public class PKCS12ToDecryptActivity extends Activity implements OnItemClickListener, OnClickListener { |
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57 | |
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58 | private File cwd; |
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59 | private File selected; |
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60 | private FileBrowserView viewHolder; |
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61 | private FileListAdapter listAdapter; |
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62 | private String filterMImeType = "application/*"; |
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63 | |
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64 | // cadena que mantiene la ruta del archivo descifrar |
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65 | private String fileToDecrypt = null; |
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66 | |
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67 | // cadena que mantiene la ruta del archivo descifrado |
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68 | private String decryptedFile = null; |
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69 | |
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70 | // cadena que mantiene la ruta del archivo PKCS12 |
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71 | private String pkcs12File = null; |
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72 | |
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73 | // contrasena del archivo p12 |
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74 | private String pkcs12Password = null; |
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75 | |
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76 | |
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77 | @Override |
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78 | protected void onCreate(Bundle savedInstanceState) { |
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79 | //Estilando la barra de titulo |
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80 | final boolean customTitleSupported = requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); |
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81 | |
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82 | super.onCreate(savedInstanceState); |
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83 | |
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84 | this.viewHolder = new FileBrowserView(); |
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85 | |
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86 | if (savedInstanceState != null) { |
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87 | if(savedInstanceState.getString("selected") != null) |
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88 | this.selected = new File(savedInstanceState.getString("selected")); |
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89 | |
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90 | if (this.selected != null) { |
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91 | |
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92 | PKCS12ToDecryptActivity.this.updateButton |
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93 | (PKCS12ToDecryptActivity.this.viewHolder.accept,true); |
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94 | |
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95 | } |
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96 | |
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97 | this.cwd = new File(savedInstanceState.getString("cwd")); |
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98 | this.viewHolder.fileList.setAdapter(this.listAdapter = new FileListAdapter(this.cwd.getAbsolutePath(), filterMImeType)); |
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99 | |
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100 | } else { |
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101 | this.selected = null; |
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102 | this.viewHolder.fileList.setAdapter(this.listAdapter = new FileListAdapter()); |
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103 | } |
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104 | |
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105 | |
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106 | boolean enabled = false; |
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107 | if (this.selected != null) |
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108 | enabled = this.viewHolder.accept.isEnabled(); |
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109 | |
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110 | PKCS12ToDecryptActivity.this.updateButton |
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111 | (PKCS12ToDecryptActivity.this.viewHolder.accept,enabled); |
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112 | |
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113 | //Estilando Barra de titulo |
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114 | if(customTitleSupported) |
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115 | getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.title_bar); |
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116 | |
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117 | |
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118 | // chequear si intent tiene data |
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119 | final android.content.Intent intent = getIntent(); |
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120 | final android.net.Uri data = intent.getData(); |
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121 | |
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122 | |
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123 | if (data != null) { |
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124 | // verificar el tipo de scheme |
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125 | String scheme = data.getScheme(); |
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126 | |
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127 | // descifrar un archivo que esta en el dispositivo |
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128 | if (scheme.equals("file")) { |
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129 | Log.d("PKCS12ToDecryptActivity: ", "scheme == file"); |
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130 | Toast.makeText(getApplicationContext(), "Descifrar archivo: "+data.getPath(), Toast.LENGTH_SHORT).show(); |
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131 | |
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132 | // obtener archivo a descifrar |
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133 | if (data.getPath().endsWith("cdoc")){ |
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134 | fileToDecrypt = data.getPath(); |
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135 | |
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136 | |
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137 | }else{ |
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138 | Toast.makeText(getApplicationContext(), "¡Intentando descifrar un archivo distinto de .cdoc!", Toast.LENGTH_SHORT).show(); |
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139 | Log.d("PKCS12ToDecryptActivity: ", "¡Intentando descifrar un archivo distinto de .cdoc!"); |
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140 | finish(); |
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141 | } |
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142 | } |
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143 | }else{ |
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144 | |
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145 | final Bundle bundle = getIntent().getExtras(); |
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146 | // verificacion de archivo desde la Activity principal |
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147 | if (bundle != null) { |
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148 | Log.d("PKCS12ToDecryptActivity: ", "bundle != null"); |
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149 | // Capturando archivo original que se debe descifrar |
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150 | fileToDecrypt = getIntent().getExtras().getString("fileToDecrypt"); |
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151 | } |
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152 | |
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153 | } |
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154 | //Capturando archivo original que se debe descifrar |
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155 | //fileToDecrypt = getIntent().getExtras().getString("fileToDecrypt"); |
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156 | |
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157 | } |
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158 | |
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159 | |
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160 | /** |
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161 | * Provides the data to be shown in the file browser ListView. |
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162 | * |
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163 | * @author José M. Prieto (jmprieto@emergya.com) |
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164 | */ |
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165 | private class FileListAdapter extends BaseAdapter { |
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166 | |
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167 | private final ArrayList<File> directories; |
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168 | private final ArrayList<File> files; |
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169 | |
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170 | private FileListAdapter() { |
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171 | this("/",filterMImeType); |
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172 | } |
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173 | |
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174 | private FileListAdapter(String location) { |
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175 | this(location, ""); |
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176 | } |
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177 | |
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178 | private FileListAdapter(String location, String filterMimeType) { |
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179 | |
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180 | directories = new ArrayList<File>(); |
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181 | files = new ArrayList<File>(); |
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182 | |
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183 | //Obtiene etiqueta que se colocará antes del path que visualizará el usuario |
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184 | String toPathText = PKCS12ToDecryptActivity.this.getString(R.string.pathstring)+": "; |
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185 | //Coloca el texto de la etiqueta en la vista |
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186 | PKCS12ToDecryptActivity.this.viewHolder.pathString.setText(toPathText); |
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187 | //Coloca el texto con el path actual |
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188 | PKCS12ToDecryptActivity.this.viewHolder.path.setText(location); |
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189 | //Crea un objeto file cwd con la ubicacion dada en location |
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190 | PKCS12ToDecryptActivity.this.cwd = new File(location); |
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191 | //Obtiene el directorio padre del objeto file cwd |
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192 | File parent = PKCS12ToDecryptActivity.this.cwd.getParentFile(); |
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193 | //Si tiene un padre, lo agrega en la posición cero de la lista de directorios |
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194 | |
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195 | if (parent != null) { |
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196 | directories.add(0, parent); |
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197 | } |
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198 | |
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199 | //Crea un arreglo con las lista de archivos contenidos en el directorio cwd |
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200 | File[] ls = PKCS12ToDecryptActivity.this.cwd.listFiles(); |
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201 | if (ls != null) { |
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202 | for (File f : ls) { //recorre todos los archivos contenidos en el directorio |
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203 | |
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204 | if (FsUtils.isHiddenOrNotReadable(f)) { // Si son ocultos no hace nada |
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205 | continue; |
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206 | } |
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207 | // Si son directorios los agrega a la lista de directorios a partir de la posición 1 |
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208 | // En la posición 0 se encuentra el directorio padre |
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209 | if (f.isDirectory()) { |
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210 | directories.add(f); |
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211 | } else // De lo contrario lo agrega a la lista de archivos |
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212 | { |
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213 | //Valida tipo de archivo a mostrar |
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214 | Uri selectedUri = Uri.fromFile(f); |
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215 | String fileExtension = MimeTypeMap.getFileExtensionFromUrl(selectedUri.toString()); |
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216 | String mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(fileExtension); |
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217 | |
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218 | // Toast.makeText(PKCS12ToDecryptActivity.this, |
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219 | // "FileExtension: " + fileExtension + "\n" + |
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220 | // "MimeType: " + mimeType, |
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221 | // Toast.LENGTH_LONG).show(); |
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222 | |
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223 | |
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224 | // en principio no filtrar ningun archivo |
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225 | if(filterMimeType.isEmpty() || filterMimeType == mimeType || fileExtension.equals("p12") || fileExtension.equals("pfx")) |
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226 | files.add(f); |
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227 | |
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228 | } |
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229 | } |
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230 | } |
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231 | |
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232 | Collections.sort(directories); // Ordena los directorios alfabeticamente |
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233 | Collections.sort(files); // Ordena los archivos alfabeticamente |
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234 | } |
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235 | |
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236 | /** |
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237 | * Retorna cantidad total de elementos que se listarán en el directorio. |
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238 | */ |
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239 | @Override |
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240 | public int getCount() { |
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241 | |
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242 | return directories.size() + files.size(); |
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243 | |
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244 | } |
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245 | |
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246 | /** |
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247 | * Dada una posición en el listado del directorio, retorna un archivo o directorio |
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248 | * según corresponda. |
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249 | */ |
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250 | @Override |
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251 | public File getItem(int position) { |
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252 | |
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253 | if (position < directories.size()) { |
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254 | return directories.get(position); |
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255 | } else { |
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256 | return files.get(position - directories.size()); |
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257 | } |
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258 | } |
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259 | |
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260 | /** |
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261 | * Retorna un código hash para el archivo, permite comparar si dos archivos son los mismos |
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262 | */ |
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263 | @Override |
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264 | public long getItemId(int position) { |
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265 | |
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266 | return getItem(position).hashCode(); |
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267 | } |
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268 | |
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269 | /** |
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270 | * Crea la visualización de cada item del fileBrowser |
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271 | */ |
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272 | @Override |
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273 | public View getView(int position, View convertView, ViewGroup parent) { |
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274 | |
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275 | //Crea la vista de cada fila del filebrowser a partir del layout |
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276 | if (convertView == null) { |
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277 | LayoutInflater inflater = LayoutInflater.from(PKCS12ToDecryptActivity.this); |
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278 | convertView = inflater.inflate(R.layout.file_to_verify_bdoc_signature_item, parent, false); |
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279 | } |
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280 | |
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281 | // Se enlaza a cada componente del layout |
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282 | ImageView image = (ImageView) convertView.findViewById(R.id.type_image); |
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283 | TextView fileName = (TextView) convertView.findViewById(R.id.filename_text); |
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284 | TextView modified = (TextView) convertView.findViewById(R.id.filename_modified); |
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285 | |
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286 | // Se obtiene el archivo ubicado en position |
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287 | File file = getItem(position); |
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288 | |
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289 | //RadioButton |
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290 | RadioButton radio = (RadioButton) convertView.findViewById(R.id.file_radio); |
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291 | radio.setFocusable(false); |
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292 | |
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293 | // Se asignan los iconos según el tipo de archivo y se oculta el radio en los directorios |
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294 | if (file.isDirectory()) { |
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295 | image.setImageResource(R.drawable.ic_carpeta); |
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296 | radio.setVisibility(View.INVISIBLE); |
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297 | radio.setChecked(false); |
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298 | } else { |
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299 | image.setImageResource(R.drawable.ic_archivo); |
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300 | radio.setVisibility(View.VISIBLE); |
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301 | |
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302 | if (PKCS12ToDecryptActivity.this.selected == null || |
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303 | PKCS12ToDecryptActivity.this.selected.hashCode() != file.hashCode()){ |
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304 | radio.setChecked(false); |
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305 | } else{ |
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306 | radio.setChecked(true); |
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307 | } |
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308 | } |
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309 | |
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310 | // Si es el directorio que hace referencia al padre le coloca como nombre ".." |
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311 | if (file.isDirectory() && position == 0 && ! "/".equals(PKCS12ToDecryptActivity.this.cwd.getAbsolutePath())) { |
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312 | fileName.setText(".."); |
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313 | } else { |
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314 | fileName.setText(file.getName()); |
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315 | } |
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316 | |
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317 | |
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318 | //Datos de modificación del archivo |
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319 | SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy"); |
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320 | Date date = new Date(file.lastModified()); |
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321 | |
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322 | String dateString = PKCS12ToDecryptActivity.this.getString(R.string.modified)+": "; |
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323 | if (file.lastModified()>0) |
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324 | modified.setText(dateString+sdf.format(date)); |
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325 | else |
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326 | modified.setText(dateString+"-"); |
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327 | |
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328 | return convertView; |
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329 | } |
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330 | |
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331 | /** |
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332 | * Controla la selección de cada item del fileBrowser |
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333 | */ |
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334 | public void select(ListView parent, int position) { |
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335 | |
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336 | File item = getItem(position); |
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337 | //Si es un directorio el seleccionado se hace un llamado del fileBrowser del directorio |
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338 | if (item.isDirectory()) { |
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339 | parent.setAdapter(PKCS12ToDecryptActivity.this.listAdapter = new FileListAdapter(item.getAbsolutePath(), filterMImeType)); |
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340 | } else { // Si es un archivo |
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341 | |
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342 | //Se agrega el archivo a la lista de seleccionados si no se encuentra en la misma |
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343 | if (PKCS12ToDecryptActivity.this.selected == null || |
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344 | PKCS12ToDecryptActivity.this.selected.hashCode() != item.hashCode()){ |
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345 | |
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346 | PKCS12ToDecryptActivity.this.selected = item; |
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347 | |
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348 | PKCS12ToDecryptActivity.this.updateButton(PKCS12ToDecryptActivity.this.viewHolder.accept,true); |
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349 | |
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350 | } |
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351 | else{ // De lo contrario se elimina de la lista de seleccionados |
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352 | |
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353 | PKCS12ToDecryptActivity.this.selected = null; |
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354 | PKCS12ToDecryptActivity.this.updateButton(PKCS12ToDecryptActivity.this.viewHolder.accept,false); |
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355 | |
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356 | } |
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357 | notifyDataSetChanged(); |
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358 | } |
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359 | } |
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360 | } |
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361 | |
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362 | |
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363 | |
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364 | |
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365 | @Override |
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366 | protected void onSaveInstanceState(Bundle outState) { |
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367 | super.onSaveInstanceState(outState); |
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368 | |
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369 | outState.putParcelable("intent", this.getIntent()); |
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370 | outState.putString("cwd", this.cwd.getAbsolutePath()); |
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371 | if(this.selected != null) |
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372 | outState.putString("selected", this.selected.getAbsolutePath()); |
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373 | |
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374 | } |
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375 | |
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376 | private void updateButton(View v, boolean bool) { |
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377 | try{ |
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378 | |
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379 | v.setEnabled(bool); |
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380 | if (v instanceof TextView){ |
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381 | Drawable icon = ((TextView)v).getCompoundDrawables()[1]; |
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382 | if (icon!=null) |
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383 | if (bool) |
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384 | icon.setAlpha(255); |
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385 | else |
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386 | icon.setAlpha(127); |
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387 | } |
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388 | if (v instanceof ImageView){ |
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389 | ImageView result = (ImageView) v; |
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390 | if (bool) |
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391 | result.setAlpha(255); |
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392 | else |
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393 | result.setAlpha(127); |
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394 | } |
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395 | |
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396 | }catch(NullPointerException e){} |
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397 | |
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398 | } |
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399 | |
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400 | private void updateButton(LinearLayout layout, boolean bool) { |
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401 | try{ |
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402 | layout.setEnabled(bool); |
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403 | for (int i=0; i<layout.getChildCount();i++){ |
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404 | this.updateButton(layout.getChildAt(i), bool); |
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405 | } |
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406 | }catch(NullPointerException e){} |
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407 | |
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408 | } |
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409 | |
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410 | |
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411 | |
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412 | /** |
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413 | * Holds references to view objects. |
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414 | * |
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415 | * @author José M. Prieto (jmprieto@emergya.com) |
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416 | */ |
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417 | private class FileBrowserView { |
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418 | |
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419 | public ListView fileList; |
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420 | public TextView path; |
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421 | public LinearLayout accept; |
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422 | public LinearLayout clear; |
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423 | public TextView pathString; |
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424 | |
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425 | public FileBrowserView() { |
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426 | |
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427 | setContentView(R.layout.activity_pkcs12_to_decrypt); |
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428 | this.path = (TextView) findViewById(R.id.path); |
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429 | this.pathString = (TextView) findViewById(R.id.pathstring); |
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430 | |
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431 | this.fileList = (ListView) findViewById(R.id.file_list); |
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432 | this.fileList.setOnItemClickListener(PKCS12ToDecryptActivity.this); |
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433 | this.fileList.setItemsCanFocus(true); |
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434 | |
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435 | |
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436 | this.clear = (LinearLayout) findViewById(R.id.button_clear_zone); |
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437 | this.clear.setOnClickListener(PKCS12ToDecryptActivity.this); |
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438 | |
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439 | this.accept = (LinearLayout) findViewById(R.id.button_accept_zone); |
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440 | this.accept.setOnClickListener(PKCS12ToDecryptActivity.this); |
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441 | |
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442 | } |
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443 | } |
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444 | |
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445 | @Override |
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446 | public void onItemClick(AdapterView<?> parent, View view, int position, long id) { |
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447 | |
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448 | |
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449 | if (parent.getId() == R.id.file_list) { // user selects a file |
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450 | this.listAdapter.select((ListView) parent, position); |
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451 | |
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452 | } else { // user de-selects a file |
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453 | //this.listAdapter.addIfSameDirectory(selectedAdapter.doUnselect((ListView) parent, position)); |
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454 | |
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455 | } |
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456 | //this.viewHolder.numSelected.setText(Integer.toString(this.selected.size())); |
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457 | } |
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458 | |
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459 | @Override |
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460 | public void onClick(View v) { |
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461 | |
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462 | switch (v.getId()) { |
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463 | |
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464 | |
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465 | case R.id.button_clear_zone: |
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466 | |
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467 | this.selected = null; |
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468 | this.listAdapter.notifyDataSetChanged(); |
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469 | |
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470 | //this.viewHolder.numSelected.setText(""+this.selected.size()); |
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471 | this.updateButton(this.viewHolder.accept, false); |
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472 | break; |
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473 | |
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474 | |
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475 | |
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476 | case R.id.button_accept_zone: |
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477 | |
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478 | // lanzar intent para compartir el archivo seleccionado |
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479 | pkcs12File = PKCS12ToDecryptActivity.this.selected.getAbsolutePath(); |
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480 | |
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481 | // crear dialogo para solicitar la contrasena del PKCS12 |
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482 | Dialog d = onCreateDialog(); |
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483 | d.show(); |
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484 | |
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485 | Toast.makeText(getApplicationContext(), "PKCS12ToDecryptActivity - PKCS12: "+pkcs12File, Toast.LENGTH_SHORT).show(); |
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486 | |
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487 | break; |
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488 | |
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489 | } |
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490 | } |
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491 | |
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492 | |
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493 | // funcion para compartir el archivo |
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494 | private void shareIt() { |
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495 | |
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496 | Intent shareIntent = new Intent(); |
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497 | shareIntent.setAction(Intent.ACTION_SEND); |
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498 | File file = new File(fileToDecrypt); |
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499 | |
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500 | |
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501 | Uri uri = Uri.fromFile(file); |
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502 | Log.i("DEBUG", file.getPath()); |
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503 | //Log.d("******", getMimeType(file.getPath())); |
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504 | //shareIntent.setDataAndType(uri, getMimeType(file.getPath())); |
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505 | shareIntent.putExtra(Intent.EXTRA_STREAM, uri); |
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506 | shareIntent.setType("application/*"); |
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507 | startActivity(Intent.createChooser(shareIntent, getResources().getText(R.string.share_it_using))); |
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508 | } |
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509 | |
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510 | |
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511 | /** |
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512 | * Selecciona el certificado del destinatario del directorio de certificados |
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513 | * para cifrado |
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514 | * @return void |
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515 | */ |
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516 | // funcion para desplegar el gestor de certificados de destinatarios para cifrar |
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517 | private void selectCertificateToEncrypt(String fileToEncrypt) { |
---|
518 | |
---|
519 | // desplegar la actividad de gestor de certificados de destinatarios |
---|
520 | |
---|
521 | // chequear disponibilidad de directorio de certificados |
---|
522 | if (!checkCertificatesDirectoryAvailability()){ |
---|
523 | Toast.makeText(getApplicationContext(), "PKCS12ToDecryptActivity: directorio no disponible", Toast.LENGTH_SHORT).show(); |
---|
524 | |
---|
525 | finish(); |
---|
526 | return; |
---|
527 | }else{ |
---|
528 | // lanzar el activity SelectCeritificateToEncryptActivity |
---|
529 | Intent intent = new Intent(this, SelectCertificateToEncryptActivity.class); |
---|
530 | intent.putExtra("fileToEncrypt", fileToEncrypt); |
---|
531 | startActivity(intent); |
---|
532 | |
---|
533 | } |
---|
534 | |
---|
535 | |
---|
536 | |
---|
537 | |
---|
538 | |
---|
539 | } // fin de selectRecipientCertificate() |
---|
540 | |
---|
541 | /** |
---|
542 | * Chequea la disponibilidad del directorio de /TibisayMovil/CertificatesToEncrypt |
---|
543 | * @return boolean |
---|
544 | */ |
---|
545 | private boolean checkCertificatesDirectoryAvailability() { |
---|
546 | // verificar acceso al directorio /mnt/sdcard/TibisayMovil/CertificatesToEncrypt |
---|
547 | boolean mExternalStorageAvailable = false; |
---|
548 | boolean mExternalStorageWriteable = false; |
---|
549 | String state = Environment.getExternalStorageState(); |
---|
550 | |
---|
551 | String certificatesDir = Environment.getExternalStorageDirectory().getAbsolutePath() + "/" + |
---|
552 | getResources().getString(R.string.app_name) + "/" + |
---|
553 | getResources().getString(R.string.certificate_dir_files) + "/"; |
---|
554 | |
---|
555 | AlertDialog.Builder builder = new AlertDialog.Builder(PKCS12ToDecryptActivity.this); |
---|
556 | |
---|
557 | |
---|
558 | if (Environment.MEDIA_MOUNTED.equals(state)) { |
---|
559 | // We can read and write the media |
---|
560 | mExternalStorageAvailable = mExternalStorageWriteable = true; |
---|
561 | Toast.makeText(getApplicationContext(), "We can read and write the media", Toast.LENGTH_SHORT).show(); |
---|
562 | |
---|
563 | // Crear directorio CertificatesToEncrypt donde se almacenan los certificados de |
---|
564 | // destinatarios para cifrado |
---|
565 | /* |
---|
566 | String certificatesDir = Environment.getExternalStorageDirectory() + "/" + |
---|
567 | getResources().getString(R.string.app_name) + "/" + |
---|
568 | getResources().getString(R.string.certificates_dir) + "/"; |
---|
569 | */ |
---|
570 | if (prepareDirectory(certificatesDir)){ |
---|
571 | return true; |
---|
572 | }else{ |
---|
573 | builder.setMessage("No existe el directorio "+certificatesDir+" para almacenar certificados.").setTitle("Error:"); |
---|
574 | |
---|
575 | } |
---|
576 | |
---|
577 | } else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) { |
---|
578 | // We can only read the media |
---|
579 | mExternalStorageAvailable = true; |
---|
580 | mExternalStorageWriteable = false; |
---|
581 | Toast.makeText(getApplicationContext(), "We can only read the media", Toast.LENGTH_SHORT).show(); |
---|
582 | |
---|
583 | builder.setMessage("Directorio "+certificatesDir+ " montado de solo lectura. No se pueden almancenar certificados.").setTitle("Error:"); |
---|
584 | |
---|
585 | |
---|
586 | } else { |
---|
587 | // Something else is wrong. It may be one of many other states, but all we need |
---|
588 | // to know is we can neither read nor write |
---|
589 | mExternalStorageAvailable = mExternalStorageWriteable = false; |
---|
590 | Toast.makeText(getApplicationContext(), "we can neither read nor write", Toast.LENGTH_SHORT).show(); |
---|
591 | |
---|
592 | builder.setMessage("Directorio "+certificatesDir+ " no está disponible. No se pueden almancenar certificados.").setTitle("Error:"); |
---|
593 | |
---|
594 | } |
---|
595 | |
---|
596 | |
---|
597 | builder.setNegativeButton("Cancelar", new DialogInterface.OnClickListener() { |
---|
598 | public void onClick(DialogInterface dialog, int id) { |
---|
599 | // User cancelled the dialog |
---|
600 | PKCS12ToDecryptActivity.this.finish(); |
---|
601 | } |
---|
602 | }); |
---|
603 | AlertDialog dialog = builder.create(); |
---|
604 | dialog.show(); |
---|
605 | return false; |
---|
606 | } // fin de checkCertificatesDirectoryAvailability |
---|
607 | |
---|
608 | |
---|
609 | /** |
---|
610 | * Prepara directorio |
---|
611 | * @return boolean |
---|
612 | */ |
---|
613 | boolean prepareDirectory(String dir) |
---|
614 | { |
---|
615 | try |
---|
616 | { |
---|
617 | if (makedirs(dir)) |
---|
618 | { |
---|
619 | return true; |
---|
620 | } else { |
---|
621 | return false; |
---|
622 | } |
---|
623 | } catch (Exception e) |
---|
624 | { |
---|
625 | e.printStackTrace(); |
---|
626 | Toast.makeText(this, "Could not initiate File System.. Is Sdcard mounted properly?", Toast.LENGTH_LONG).show(); |
---|
627 | return false; |
---|
628 | } |
---|
629 | } |
---|
630 | |
---|
631 | /** |
---|
632 | * Crea directorio utilizando la variable tmpDir |
---|
633 | * @return boolean |
---|
634 | */ |
---|
635 | private boolean makedirs(String dir) |
---|
636 | { |
---|
637 | //File tempdir = new File(extractedDirFiles); |
---|
638 | File tempdir = new File(dir); |
---|
639 | if (!tempdir.exists()) |
---|
640 | tempdir.mkdirs(); |
---|
641 | return (tempdir.isDirectory()); |
---|
642 | } |
---|
643 | |
---|
644 | |
---|
645 | /** |
---|
646 | * Crea dialogo para obtener la contrasena del archivo P12 |
---|
647 | * |
---|
648 | * @return Dialog |
---|
649 | */ |
---|
650 | public Dialog onCreateDialog() { |
---|
651 | |
---|
652 | LayoutInflater inflater = LayoutInflater.from(this); |
---|
653 | final View dialogview = inflater.inflate(R.layout.pkcs12_password, null); |
---|
654 | |
---|
655 | AlertDialog dialogDetails = null; |
---|
656 | |
---|
657 | AlertDialog.Builder dialogbuilder = new AlertDialog.Builder(this); |
---|
658 | dialogbuilder.setTitle(R.string.title_pkcs12_password); |
---|
659 | dialogbuilder.setView(dialogview); |
---|
660 | |
---|
661 | |
---|
662 | final EditText password = (EditText) dialogview.findViewById(R.id.password); |
---|
663 | final Button okButton = (Button) dialogview.findViewById(R.id.button_accept); |
---|
664 | okButton.setEnabled(true); |
---|
665 | |
---|
666 | okButton.setOnClickListener(new View.OnClickListener() { |
---|
667 | |
---|
668 | @Override |
---|
669 | public void onClick(View v) { |
---|
670 | |
---|
671 | Toast.makeText(PKCS12ToDecryptActivity.this," Password : "+ password.getText().toString(), Toast.LENGTH_LONG).show(); |
---|
672 | |
---|
673 | // asignar la contrasena |
---|
674 | pkcs12Password = password.getText().toString(); |
---|
675 | |
---|
676 | // ejecutar el proceso de descifrado. |
---|
677 | decryptFile(fileToDecrypt, pkcs12File, pkcs12Password); |
---|
678 | |
---|
679 | // borrar el contenido de pkcs12Password |
---|
680 | pkcs12Password = ""; |
---|
681 | |
---|
682 | } |
---|
683 | }); |
---|
684 | |
---|
685 | dialogDetails = dialogbuilder.create(); |
---|
686 | |
---|
687 | return dialogDetails; |
---|
688 | |
---|
689 | } |
---|
690 | |
---|
691 | |
---|
692 | /** |
---|
693 | * Crea dialogo para obtener la contrasena del archivo P12 |
---|
694 | * |
---|
695 | * @return Dialog |
---|
696 | */ |
---|
697 | private void decryptFile(String fileToDecrypt, String pkcs12File, String pkcs12Password) { |
---|
698 | |
---|
699 | Toast.makeText(getApplicationContext(), "Decrypting file: " + fileToDecrypt, Toast.LENGTH_SHORT).show(); |
---|
700 | |
---|
701 | |
---|
702 | ConfigManager.init("jar://jdigidoc.cfg"); |
---|
703 | /** signed doc object if used */ |
---|
704 | SignedDoc m_sdoc; |
---|
705 | m_sdoc = null; |
---|
706 | |
---|
707 | /** encrypted data object if used */ |
---|
708 | EncryptedData m_cdoc; |
---|
709 | m_cdoc = null; |
---|
710 | |
---|
711 | String outFile = null, keystoreFile = null, keystorePasswd = null, keystoreType="PKCS12"; |
---|
712 | |
---|
713 | keystoreFile = pkcs12File; |
---|
714 | |
---|
715 | keystorePasswd = pkcs12Password; |
---|
716 | |
---|
717 | Log.d("Reading encrypted file: ", fileToDecrypt); |
---|
718 | |
---|
719 | try { |
---|
720 | EncryptedDataParser dencFac = ConfigManager.instance().getEncryptedDataParser(); |
---|
721 | m_cdoc = dencFac.readEncryptedData(fileToDecrypt); |
---|
722 | } catch(Exception ex) { |
---|
723 | System.err.println("ERROR: reading encrypted file: " + fileToDecrypt + " - " + ex); |
---|
724 | Log.d("ERROR: reading encrypted file: ", ex.getMessage()); |
---|
725 | ex.printStackTrace(System.err); |
---|
726 | Toast.makeText(getApplicationContext(), ex.getMessage(), Toast.LENGTH_SHORT).show(); |
---|
727 | |
---|
728 | showDialog("Error:", ex.getMessage(), false); |
---|
729 | return; |
---|
730 | } |
---|
731 | |
---|
732 | int nKey = -1; |
---|
733 | |
---|
734 | try{ |
---|
735 | |
---|
736 | Pkcs12SignatureFactory p12fac = new Pkcs12SignatureFactory(); |
---|
737 | p12fac.init(); |
---|
738 | System.out.println("p12fac.init " ); |
---|
739 | |
---|
740 | p12fac.load(keystoreFile, keystoreType, keystorePasswd); |
---|
741 | System.out.println("p12fac.load()"); |
---|
742 | |
---|
743 | X509Certificate cert = p12fac.getAuthCertificate(0, keystorePasswd); |
---|
744 | System.out.println("p12fac.getAuthCertificate: " + nKey); |
---|
745 | |
---|
746 | nKey = m_cdoc.getRecvIndex(cert); |
---|
747 | System.out.println("Using recipient: " + nKey); |
---|
748 | if (nKey == -1) { |
---|
749 | throw(new ArrayIndexOutOfBoundsException("")); |
---|
750 | } |
---|
751 | |
---|
752 | |
---|
753 | } // fin del try interno |
---|
754 | catch(DigiDocException ex){ |
---|
755 | System.err.println("ERROR: finding cdoc recipient: " + ex); |
---|
756 | |
---|
757 | Log.d("Error finding cdoc recipient: ", ex.getMessage()); |
---|
758 | ex.printStackTrace(System.err); |
---|
759 | Toast.makeText(getApplicationContext(), ex.getMessage(), Toast.LENGTH_SHORT).show(); |
---|
760 | |
---|
761 | |
---|
762 | |
---|
763 | if (ex.getCode() == DigiDocException.ERR_TOKEN_LOGIN) { |
---|
764 | |
---|
765 | // el pasword del PKCS12 no es correcto |
---|
766 | showDialog(getResources().getString(R.string.msg_encryption_error), |
---|
767 | "password incorrecto", false); |
---|
768 | return; |
---|
769 | } |
---|
770 | showDialog(getResources().getString(R.string.msg_encryption_error), ex.getMessage(), false); |
---|
771 | return; |
---|
772 | |
---|
773 | } catch(ArrayIndexOutOfBoundsException ex) { |
---|
774 | showDialog(getResources().getString(R.string.msg_encryption_error), |
---|
775 | getResources().getString(R.string.error_decrypting_file_index_out_of_bounds), false); |
---|
776 | return; |
---|
777 | } |
---|
778 | |
---|
779 | System.err.println("**** antes de ejecutar operacion m_cdoc.decryptPkcs12(nKey, keystoreFile, keystorePasswd, keystoreType)"); |
---|
780 | // ejecutar la operacion de descifrado: |
---|
781 | try { |
---|
782 | |
---|
783 | m_cdoc.decryptPkcs12(nKey, keystoreFile, keystorePasswd, keystoreType); |
---|
784 | |
---|
785 | String [] absolutePathOriginalFile = fileToDecrypt.split(".cdoc"); |
---|
786 | //String fileName = split[0]; |
---|
787 | outFile = absolutePathOriginalFile[0]; |
---|
788 | |
---|
789 | String [] path = absolutePathOriginalFile[0].split("/"); |
---|
790 | |
---|
791 | String originalFileName = path[path.length-1]; |
---|
792 | |
---|
793 | FileOutputStream fos = new FileOutputStream( outFile ); |
---|
794 | |
---|
795 | Log.d("Decrypting file", "antes de escribir archivo " + outFile); |
---|
796 | |
---|
797 | fos.write(m_cdoc.getData()); |
---|
798 | |
---|
799 | Log.d("Decrypting file", "despues de escribir archivo " + outFile); |
---|
800 | |
---|
801 | fos.close(); |
---|
802 | |
---|
803 | Log.d("Decrypting file", "despues de cerrar archivo " + outFile); |
---|
804 | |
---|
805 | DigiDocFactory digFac = ConfigManager.instance().getDigiDocFactory(); |
---|
806 | Log.d("Decrypting file", "despues ConfigManager.instance().getDigiDocFactory()"); |
---|
807 | |
---|
808 | File file = new File(outFile); |
---|
809 | InputStream selectedFile = null; |
---|
810 | selectedFile = new BufferedInputStream(new FileInputStream(file)); |
---|
811 | |
---|
812 | m_sdoc = digFac.readSignedDocFromStreamOfType(selectedFile, false); |
---|
813 | Log.d("----", "leyo el ddoc"); |
---|
814 | Toast.makeText(getApplicationContext(), "leyó el ddoc", Toast.LENGTH_SHORT).show(); |
---|
815 | |
---|
816 | selectedFile.close(); |
---|
817 | |
---|
818 | // ******* |
---|
819 | Log.d("Decrypting file", "antes de m_sdoc.getDataFile(0)"); |
---|
820 | DataFile df = m_sdoc.getDataFile(0); |
---|
821 | Log.d("Decrypting file", "despues de m_sdoc.getDataFile(0)"); |
---|
822 | |
---|
823 | String decryptedDir = Environment.getExternalStorageDirectory().getAbsolutePath() + "/" + |
---|
824 | getResources().getString(R.string.app_name) + "/" + |
---|
825 | getResources().getString(R.string.decrypted_dir_files) + "/"; |
---|
826 | |
---|
827 | decryptedFile = decryptedDir+originalFileName; |
---|
828 | |
---|
829 | fos = new FileOutputStream(decryptedFile); |
---|
830 | InputStream is = df.getBodyAsStream(); |
---|
831 | |
---|
832 | if(is == null) { |
---|
833 | System.err.println("DataFile has no data!"); |
---|
834 | showDialog(getResources().getString(R.string.msg_encryption_error), |
---|
835 | "DataFile has no data!", false); |
---|
836 | return; |
---|
837 | } |
---|
838 | byte[] data = new byte[4096]; |
---|
839 | int n = 0, m = 0; |
---|
840 | while((n = is.read(data)) > 0) { |
---|
841 | fos.write(data, 0, n); |
---|
842 | m += n; |
---|
843 | } |
---|
844 | fos.close(); |
---|
845 | is.close(); |
---|
846 | |
---|
847 | // borrar el archivo ddoc |
---|
848 | File ddocFile = new File(outFile); |
---|
849 | ddocFile.delete(); |
---|
850 | |
---|
851 | |
---|
852 | Toast.makeText(getApplicationContext(), "Descifrado correctamente: " + decryptedFile, Toast.LENGTH_SHORT).show(); |
---|
853 | |
---|
854 | showDialog("Información:", "Archivo descifrado exitosamente.", true); |
---|
855 | |
---|
856 | // TODO lanzar la actividad para mostrar el resultado del cifrado |
---|
857 | //showDecryptionResults(fileToDecrypt, decryptedFile); |
---|
858 | |
---|
859 | |
---|
860 | |
---|
861 | } catch (DigiDocException e) { |
---|
862 | |
---|
863 | showDialog(getResources().getString(R.string.msg_encryption_error), |
---|
864 | e.getMessage(), false); |
---|
865 | return; |
---|
866 | } |
---|
867 | |
---|
868 | catch (FileNotFoundException e) { |
---|
869 | showDialog(getResources().getString(R.string.msg_encryption_error), |
---|
870 | e.getMessage(), false); |
---|
871 | return; |
---|
872 | } catch (IOException e) { |
---|
873 | showDialog(getResources().getString(R.string.msg_encryption_error), |
---|
874 | e.getMessage(), false); |
---|
875 | return; |
---|
876 | } |
---|
877 | |
---|
878 | |
---|
879 | |
---|
880 | |
---|
881 | } // fin de void decryptFile(String fileToDecrypt, String pkcs12File) |
---|
882 | |
---|
883 | |
---|
884 | /** |
---|
885 | * Crea un dialogo con el titulo y mensaje como argumentos y lo despliega |
---|
886 | * |
---|
887 | * @return void |
---|
888 | */ |
---|
889 | public void showDialog(String title, String msg, final boolean success) { |
---|
890 | |
---|
891 | // 1. Instantiate an AlertDialog.Builder with its constructor |
---|
892 | AlertDialog.Builder builder = new AlertDialog.Builder(PKCS12ToDecryptActivity.this); |
---|
893 | |
---|
894 | // 2. Chain together various setter methods to set the dialog characteristics |
---|
895 | builder.setMessage(msg) |
---|
896 | .setTitle(title); |
---|
897 | |
---|
898 | builder.setPositiveButton("Ok", new DialogInterface.OnClickListener() { |
---|
899 | public void onClick(DialogInterface dialog, int id) { |
---|
900 | // User clicked OK button |
---|
901 | Toast.makeText(getApplicationContext(), "User clicked OK button", Toast.LENGTH_LONG).show(); |
---|
902 | finish(); |
---|
903 | |
---|
904 | // TODO lanzar la actividad para mostrar el resultado del cifrado |
---|
905 | if (success){ |
---|
906 | showDecryptionResults(fileToDecrypt, decryptedFile); |
---|
907 | } |
---|
908 | } |
---|
909 | }); |
---|
910 | |
---|
911 | // 3. Get the AlertDialog from create() |
---|
912 | AlertDialog dialog = builder.create(); |
---|
913 | dialog.show(); |
---|
914 | } |
---|
915 | |
---|
916 | |
---|
917 | /** |
---|
918 | * Muestra la actividad de información del proceso de descifrado |
---|
919 | * |
---|
920 | * @return void |
---|
921 | */ |
---|
922 | public void showDecryptionResults(String fileToDecrypt, String decryptedFile) { |
---|
923 | |
---|
924 | // TODO lanzar el activity EncryptionResultActivity |
---|
925 | |
---|
926 | Intent intent = new Intent(this, DecryptionResultActivity.class); |
---|
927 | intent.putExtra("fileToDecrypt", fileToDecrypt); |
---|
928 | intent.putExtra("decryptedFile", decryptedFile); |
---|
929 | startActivity(intent); |
---|
930 | |
---|
931 | |
---|
932 | } |
---|
933 | |
---|
934 | } |
---|
935 | |
---|