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.InputStream; |
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6 | |
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7 | |
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8 | import android.net.Uri; |
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9 | import android.os.Bundle; |
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10 | import android.app.Activity; |
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11 | import android.content.Context; |
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12 | import android.content.Intent; |
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13 | import android.util.Log; |
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14 | import android.view.LayoutInflater; |
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15 | import android.view.View; |
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16 | import android.view.ViewGroup; |
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17 | import android.view.Window; |
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18 | import android.view.View.OnClickListener; |
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19 | import android.widget.AdapterView; |
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20 | import android.widget.BaseAdapter; |
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21 | import android.widget.ImageView; |
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22 | import android.widget.LinearLayout; |
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23 | import android.widget.ListView; |
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24 | import android.widget.TextView; |
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25 | import android.widget.Toast; |
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26 | |
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27 | import java.security.*; |
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28 | import java.security.cert.Certificate; |
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29 | import java.security.cert.CertificateFactory; |
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30 | import java.io.*; |
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31 | import java.lang.reflect.Field; |
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32 | |
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33 | import com.lowagie.text.pdf.*; |
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34 | |
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35 | import ee.sk.digidoc.SignedDoc; |
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36 | import ee.sk.utils.ConvertUtils; |
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37 | |
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38 | import java.util.Calendar; |
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39 | import java.util.ArrayList; |
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40 | import java.util.Random; |
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41 | |
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42 | import java.security.cert.X509Certificate; |
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43 | import java.text.SimpleDateFormat; |
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44 | |
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45 | |
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46 | |
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47 | |
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48 | |
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49 | |
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50 | |
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51 | |
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52 | public class PDFVerifyResultActivity extends Activity { |
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53 | |
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54 | private LinearLayout button_share; |
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55 | private LinearLayout button_finish; |
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56 | |
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57 | // ruta absoluta al archivo a verificar |
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58 | private String pdfToVerify; |
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59 | |
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60 | @Override |
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61 | protected void onCreate(Bundle savedInstanceState) { |
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62 | |
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63 | |
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64 | |
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65 | //Estilando la barra de titulo |
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66 | final boolean customTitleSupported = requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); |
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67 | |
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68 | super.onCreate(savedInstanceState); |
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69 | |
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70 | setContentView(R.layout.activity_verify_result_pdf); |
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71 | |
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72 | //Estilando Barra de titulo |
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73 | if(customTitleSupported) |
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74 | getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.title_bar); |
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75 | |
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76 | // obtener el archivo pdf a verificar |
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77 | Bundle bundle = getIntent().getExtras(); |
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78 | pdfToVerify = bundle.getString("pdfToVerify"); |
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79 | TextView pdfName = (TextView) this.findViewById(R.id.filename_text); |
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80 | pdfName.setText(pdfToVerify); |
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81 | |
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82 | // ejecutar el proceso de verificacion del pdf |
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83 | doVerification(pdfToVerify); |
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84 | |
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85 | // habilitar opciones de botones inferiores |
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86 | button_share = (LinearLayout) this.findViewById(R.id.button_remove_certificate_zone); |
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87 | button_finish = (LinearLayout) this.findViewById(R.id.button_add_certificate_zone); |
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88 | |
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89 | // habilita el click sobre la acción de finalizar la verificacion de firma y regresar |
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90 | button_finish.setOnClickListener(new OnClickListener() |
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91 | { |
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92 | public void onClick(View v) |
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93 | { |
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94 | |
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95 | Intent oIntent = new Intent(PDFVerifyResultActivity.this, TibisayMovilActivity.class); |
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96 | oIntent.setAction(Intent.ACTION_VIEW); |
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97 | oIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); |
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98 | startActivity(oIntent); |
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99 | |
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100 | finish(); |
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101 | } |
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102 | }); |
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103 | |
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104 | // habilita el click sobre la acción de compartir el archivo |
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105 | button_share.setOnClickListener(new OnClickListener() |
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106 | { |
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107 | public void onClick(View v) |
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108 | { |
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109 | shareIt(); |
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110 | } |
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111 | }); |
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112 | |
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113 | |
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114 | |
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115 | } // fin de onCreate |
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116 | |
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117 | |
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118 | /** |
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119 | * Ejecuta la verificacion de la firma del pdf utilizando la biblioteca droidtext |
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120 | * |
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121 | * */ |
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122 | private void doVerification(String pdfToVerify) { |
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123 | |
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124 | |
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125 | try { |
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126 | |
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127 | Random rnd = new Random(); |
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128 | |
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129 | PdfReader reader = new PdfReader(pdfToVerify); |
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130 | Log.d("VerificadorPDF", "new PdfReader"); |
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131 | |
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132 | AcroFields af = reader.getAcroFields(); |
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133 | Log.d("VerificadorPDF", "reader.getAcroFields()"); |
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134 | |
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135 | ArrayList names = af.getSignatureNames(); |
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136 | Log.d("VerificadorPDF", "af.getSignatureNames()"); |
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137 | |
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138 | Toast.makeText(getApplicationContext(), "names.size: "+ Integer.toString(names.size()), Toast.LENGTH_SHORT).show(); |
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139 | Log.d("VerificadorPDF", Integer.toString(names.size())); |
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140 | |
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141 | if (names.size() == 0) { |
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142 | // el archivo no posee firmas |
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143 | TextView signatureMessage = (TextView) this.findViewById(R.id.archivo_original_a_descifrar); |
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144 | signatureMessage.setText("El documento PDF no está firmado electrónicamente."); |
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145 | |
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146 | TextView labelSignature = (TextView) this.findViewById(R.id.label_archivo_original); |
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147 | labelSignature.setText("Documento:"); |
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148 | |
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149 | TextView labelSigners = (TextView) this.findViewById(R.id.label_destinatario_cifrado); |
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150 | labelSigners.setVisibility(View.GONE); |
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151 | |
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152 | ListView listViewSigners = (ListView) this.findViewById(R.id.signatures_list); |
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153 | listViewSigners.setVisibility(View.GONE); |
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154 | return; |
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155 | }else{ |
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156 | // el documento si posee firmas |
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157 | //KeyStore kall = PdfPKCS7.loadCacertsKeyStore(); |
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158 | |
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159 | // crear certificate factory |
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160 | CertificateFactory cf = CertificateFactory.getInstance("X.509"); |
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161 | |
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162 | // crear un KeyStore |
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163 | String keyStoreType = KeyStore.getDefaultType(); |
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164 | KeyStore kall = KeyStore.getInstance(keyStoreType); |
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165 | kall.load(null, null); |
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166 | |
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167 | // obtener vector de campos de /res/raw |
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168 | Field[] fields = R.raw.class.getFields(); |
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169 | |
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170 | InputStream caInput = null; |
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171 | |
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172 | // iterar sobre todos los certificados incluidos en /res/raw y cargarlos |
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173 | // en el KeyStore |
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174 | for (int l=0; l < fields.length; l++) { |
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175 | try { |
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176 | Toast.makeText(getApplicationContext(), "PDFVerifyResultActivity - reading certificate: "+Integer.toString(l)+ " "+ |
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177 | Integer.toString(fields[l].getInt(null)), Toast.LENGTH_SHORT).show(); |
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178 | |
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179 | caInput = new BufferedInputStream(getResources().openRawResource(fields[l].getInt(null))); |
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180 | |
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181 | } catch (IllegalArgumentException e) { |
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182 | |
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183 | Toast.makeText(getApplicationContext(), "PDFVerifyResultActivity: IllegalArgumentException "+e.getMessage(), |
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184 | Toast.LENGTH_SHORT).show(); |
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185 | break; |
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186 | } catch (IllegalAccessException e) { |
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187 | |
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188 | Toast.makeText(getApplicationContext(), "PDFVerifyResultActivity: IllegalAccessException "+e.getMessage(), |
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189 | Toast.LENGTH_SHORT).show(); |
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190 | break; |
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191 | } |
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192 | |
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193 | Certificate ca; |
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194 | try { |
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195 | ca = cf.generateCertificate(caInput); |
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196 | //Log.d("**ca:", ((X509Certificate) ca).getSubjectDN()); |
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197 | |
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198 | //Log.d("*** try: ca.toString()", ca.toString()); |
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199 | } finally { |
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200 | caInput.close(); |
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201 | } |
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202 | kall.setCertificateEntry("ca"+Integer.toString(l), ca); |
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203 | }// fin de la iteracion sobre /res/raw |
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204 | |
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205 | |
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206 | // se crea el adaptador para mostrar los firmantes del contenedor |
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207 | ListView signerListView = (ListView) findViewById(R.id.signatures_list); |
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208 | final ArrayList<SignerFromPDF> signers = new ArrayList<SignerFromPDF>(); |
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209 | |
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210 | boolean invalidSignature = false; |
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211 | |
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212 | for (int i = 0; i < names.size(); i++){ |
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213 | |
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214 | String name = (String)names.get(i); |
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215 | PdfPKCS7 pk = af.verifySignature(name); |
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216 | Calendar cal = pk.getSignDate(); |
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217 | Certificate pkc[] = pk.getCertificates(); |
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218 | |
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219 | X509Certificate cert = (X509Certificate) pk.getSigningCertificate(); |
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220 | |
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221 | String cn = cert.getSubjectDN().toString(); |
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222 | String signerName = ConvertUtils.getCommonName(cn); |
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223 | |
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224 | SimpleDateFormat date_format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SS"); |
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225 | String date = date_format.format(pk.getSignDate().getTime()); |
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226 | |
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227 | String certificateSerial = cert.getSerialNumber().toString(); |
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228 | String validFrom = cert.getNotBefore().toString(); |
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229 | String validUntil = cert.getNotAfter().toString(); |
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230 | String certificateIssuer = cert.getIssuerDN().toString(); |
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231 | |
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232 | Object fails[] = PdfPKCS7.verifyCertificates(pkc, kall, null, cal); |
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233 | if (fails == null) { |
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234 | System.out.print(pk.getSignName()); |
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235 | Toast.makeText(getApplicationContext(), "Firma Válida", Toast.LENGTH_SHORT).show(); |
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236 | } |
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237 | else { |
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238 | System.out.print("Firma no válida"); |
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239 | Toast.makeText(getApplicationContext(), "Firma NO Válida", Toast.LENGTH_SHORT).show(); |
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240 | |
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241 | invalidSignature = true; |
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242 | } |
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243 | |
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244 | // agregar el nombre comun del firmante y la fecha y la hora |
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245 | signers.add(new SignerFromPDF(signerName, cn, date, certificateSerial, validFrom, validUntil, certificateIssuer)); |
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246 | |
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247 | TextView signatureValidation = (TextView) this.findViewById(R.id.archivo_original_a_descifrar); |
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248 | |
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249 | if (invalidSignature){ |
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250 | signatureValidation.setText("Firma Inválida"); |
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251 | }else{ |
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252 | signatureValidation.setText("Firma Válida"); |
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253 | } |
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254 | |
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255 | |
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256 | } |
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257 | |
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258 | SignerFromPDFAdapter signerAdapter = new SignerFromPDFAdapter(PDFVerifyResultActivity.this, signers); |
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259 | signerListView.setAdapter(signerAdapter); |
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260 | signerListView.setOnItemClickListener(new android.widget.AdapterView.OnItemClickListener() { |
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261 | |
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262 | |
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263 | @Override |
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264 | public void onItemClick(AdapterView<?> parent, View view, |
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265 | int position, long id) { |
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266 | |
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267 | Toast.makeText(getApplicationContext(), "SE DEBE MOSTRAR INFORMACIÓN DEL FIRMANTE", Toast.LENGTH_SHORT).show(); |
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268 | showSignatureDetails(position, signers); |
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269 | } |
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270 | |
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271 | }); |
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272 | |
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273 | |
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274 | |
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275 | } // fin de else: el documento posee firmas |
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276 | |
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277 | |
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278 | }catch(Exception e){ |
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279 | Toast.makeText(getApplicationContext(), "Error al verificar pdf:"+e.getMessage(), Toast.LENGTH_LONG).show(); |
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280 | } |
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281 | |
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282 | } |
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283 | |
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284 | |
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285 | // funcion para compartir el documento |
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286 | private void shareIt() { |
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287 | |
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288 | Intent shareIntent = new Intent(); |
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289 | shareIntent.setAction(Intent.ACTION_SEND); |
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290 | File file = new File(pdfToVerify); |
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291 | |
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292 | |
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293 | Uri uri = Uri.fromFile(file); |
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294 | Log.i("DEBUG", file.getPath()); |
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295 | //Log.d("******", getMimeType(file.getPath())); |
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296 | //shareIntent.setDataAndType(uri, getMimeType(file.getPath())); |
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297 | shareIntent.putExtra(Intent.EXTRA_STREAM, uri); |
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298 | shareIntent.setType("application/*"); |
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299 | startActivity(Intent.createChooser(shareIntent, getResources().getText(R.string.share_it_using))); |
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300 | } |
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301 | |
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302 | |
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303 | // class que abstrae un firmante incluido en un contenedor BDOC |
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304 | private class SignerFromPDF { |
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305 | |
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306 | // nombre del firmante |
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307 | private String mName; |
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308 | |
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309 | // nombre comun del firmante |
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310 | private String mCN; |
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311 | |
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312 | // fecha y hora de la firma |
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313 | private String mDate; |
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314 | |
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315 | // serial del certificado |
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316 | private String mCertificateSerial; |
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317 | |
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318 | // fecha de validez inicial |
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319 | private String mValidFrom; |
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320 | |
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321 | // fecha de validez final |
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322 | private String mValidUntil; |
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323 | |
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324 | // emisor del certificado |
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325 | private String mCertificateIssuer; |
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326 | |
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327 | public SignerFromPDF(String name, String cn, String date, String serial, String validFrom, String validUntil, String issuer){ |
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328 | mName = name; |
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329 | mCN = cn; |
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330 | mDate = date; |
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331 | mCertificateSerial = serial; |
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332 | mValidFrom = validFrom; |
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333 | mValidUntil = validUntil; |
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334 | mCertificateIssuer = issuer; |
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335 | } |
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336 | |
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337 | public void setName(String name) { |
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338 | this.mName = name; |
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339 | } |
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340 | |
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341 | public String getName() { |
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342 | return mName; |
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343 | } |
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344 | |
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345 | public void setCN(String cn) { |
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346 | this.mCN = cn; |
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347 | } |
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348 | |
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349 | public String getCN() { |
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350 | return mCN; |
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351 | } |
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352 | |
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353 | public void setDate(String date) { |
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354 | this.mDate = date; |
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355 | } |
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356 | |
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357 | public String getDate() { |
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358 | return mDate; |
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359 | } |
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360 | |
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361 | public void setCertificateSerial(String certSerial) { |
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362 | this.mCertificateSerial = certSerial; |
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363 | } |
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364 | |
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365 | public String getCertificateSerial() { |
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366 | return mCertificateSerial; |
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367 | } |
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368 | |
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369 | public void setValidFrom(String validFrom) { |
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370 | this.mValidFrom = validFrom; |
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371 | } |
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372 | |
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373 | public String getValidFrom() { |
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374 | return mValidFrom; |
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375 | } |
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376 | |
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377 | public void setValidUntil(String validUntil) { |
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378 | this.mValidUntil = validUntil; |
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379 | } |
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380 | |
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381 | public String getValidUntil() { |
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382 | return mValidUntil; |
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383 | } |
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384 | |
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385 | public void setCertificateIssuer(String certIssuer) { |
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386 | this.mCertificateIssuer = certIssuer; |
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387 | } |
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388 | |
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389 | public String getCertificateIssuer() { |
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390 | return mCertificateIssuer; |
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391 | } |
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392 | |
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393 | } // fin de clase SignerFromPDF |
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394 | |
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395 | // clase que abstrae el adaptador para llenar el ListView de documentos que |
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396 | // se encuentran dentro del contenedor BDOC |
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397 | private class SignerFromPDFAdapter extends BaseAdapter { |
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398 | |
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399 | private ArrayList<SignerFromPDF> mSignerFromPDFList; |
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400 | private LayoutInflater lInflater; |
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401 | |
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402 | private SignerFromPDFAdapter(Context context, ArrayList<SignerFromPDF> signers) { |
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403 | this.lInflater = LayoutInflater.from(context); |
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404 | this.mSignerFromPDFList = signers; |
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405 | |
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406 | } |
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407 | |
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408 | |
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409 | @Override |
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410 | public int getCount() { |
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411 | return mSignerFromPDFList.size(); |
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412 | } |
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413 | |
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414 | @Override |
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415 | public Object getItem(int position) { |
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416 | return mSignerFromPDFList.get(position); |
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417 | } |
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418 | |
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419 | @Override |
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420 | public long getItemId(int position) { |
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421 | return position; |
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422 | } |
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423 | |
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424 | @Override |
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425 | public View getView(int position, View convertView, ViewGroup parent) { |
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426 | ViewHolder container = null; |
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427 | |
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428 | if (convertView == null){ |
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429 | container = new ViewHolder(); |
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430 | convertView = lInflater.inflate(R.layout.signer_inside_bdoc_item, null); |
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431 | |
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432 | container.signer_text = (TextView) convertView.findViewById(R.id.signer_info); |
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433 | container.signer_modified = (TextView) convertView.findViewById(R.id.signature_errors); |
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434 | container.type_image = (ImageView) convertView.findViewById(R.id.type_image); |
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435 | convertView.setTag(container); |
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436 | }else{ |
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437 | container = (ViewHolder) convertView.getTag(); |
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438 | } |
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439 | |
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440 | SignerFromPDF doc = (SignerFromPDF) getItem(position); |
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441 | container.signer_text.setText(doc.getName()); |
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442 | container.signer_modified.setText(doc.getName()); |
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443 | container.type_image.setImageResource(R.drawable.ic_pluma); |
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444 | |
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445 | return convertView; |
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446 | } |
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447 | |
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448 | |
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449 | class ViewHolder{ |
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450 | TextView signer_text; |
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451 | TextView signer_modified; |
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452 | ImageView type_image; |
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453 | } |
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454 | |
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455 | } |
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456 | |
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457 | /** |
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458 | * Lanza la actividad para mostrar detalles de un firmante |
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459 | * |
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460 | * */ |
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461 | private void showSignatureDetails(int position, ArrayList<SignerFromPDF> signers) { |
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462 | |
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463 | Log.d("**showSignatureDetails", Integer.toString(position)); |
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464 | Log.d("** nombre", signers.get(position).getName()); |
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465 | Intent intent = new Intent(this, ActivitySignerInfo.class); |
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466 | |
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467 | intent.putExtra("name", signers.get(position).getName()); |
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468 | intent.putExtra("cn", signers.get(position).getCN()); |
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469 | intent.putExtra("date", signers.get(position).getDate()); |
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470 | intent.putExtra("certificateSerial", signers.get(position).getCertificateSerial()); |
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471 | intent.putExtra("validFrom", signers.get(position).getValidFrom()); |
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472 | intent.putExtra("validUntil", signers.get(position).getValidUntil()); |
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473 | intent.putExtra("certificateIssuer", signers.get(position).getCertificateIssuer()); |
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474 | startActivity(intent); |
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475 | } |
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476 | |
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477 | |
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478 | } |
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