1 | #include <iostream>
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2 | #include <fstream>
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3 | #include <iomanip>
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4 |
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5 | using namespace std;
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6 |
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7 | #include "mywrapper.h"
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8 |
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9 | bool extract_bundled_file( const char[], int, char*, bool );
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10 |
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11 | int main(int argc, char** argv) {
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12 |
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13 | string tempdir = (string)argv[0] + ".tmp"; //temporary directory where we will store extracted files
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14 | string jarfile = tempdir + "/greenstone2.jar"; //where we will store the jar file
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15 | string search4jfile = tempdir + "/search4j"; //where we will store the jar file
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16 | string javafile = tempdir + "/@java.installer@"; //where we will store the java tar file
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17 | bool succeeded = false;
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18 |
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19 | //create the temp folder
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20 | cout << "Creating temp directory..." << endl;
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21 | succeeded = ( 0 == system( ("mkdir " + tempdir).c_str() ) );
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22 | if ( !succeeded ) {
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23 | cout << "Failed to write to create the temp directory '" << tempdir << "'" << endl;
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24 | cout << "Check that it does not already exist and try again" << endl;
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25 | cout << "Exiting" << endl;
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26 | return 1;
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27 | }
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28 |
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29 | //extract files
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30 | cout << "Extracting installer jar..." << endl;
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31 | succeeded = extract_bundled_file( greenstone2jar, sizeof(greenstone2jar), (char*)jarfile.c_str(), false);
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32 |
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33 | cout << "Extracting search4j tool..." << endl;
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34 | succeeded = extract_bundled_file( search4j, sizeof(search4j), (char*)search4jfile.c_str(), true ) && succeeded;
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35 |
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36 | #ifdef java_is_bundled
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37 | cout << "Extracting bundled java..." << endl;
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38 | succeeded = extract_bundled_file( java, sizeof(java), (char*)javafile.c_str(), true ) && succeeded;
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39 | #endif
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40 |
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41 | if ( !succeeded ) {
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42 | cout << "Failed to extract one or more resources" << endl;
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43 | cout << "This installer may not have sufficient file permissions to write it to disk" << endl;
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44 | cout << "Or, the files may be corrupt or missing from this executable" << endl;
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45 | cout << "Exiting" << endl;
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46 | return 1;
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47 | }
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48 |
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49 | //change to the temp directory
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50 | chdir( tempdir.c_str() );
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51 |
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52 | #ifdef java_is_bundled
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53 | succeeded = (system( "tar -xzf @java.installer@" ) == 0);
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54 | if ( !succeeded ) {
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55 | cout << "Failed to extract the bundled java archive to the temp directory" << endl;
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56 | cout << "You need the tar program on your PATH" << endl;
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57 | cout << "Exiting" << endl;
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58 | return 1;
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59 | }
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60 | #endif
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61 |
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62 | //check if an appropriate java is found
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63 | bool jvmFound = (system( "./search4j -m @java.min.version@ -h ./@java.extracted@" ) == 0);
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64 |
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65 | //if the jvm was not found, report not found
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66 | if ( !jvmFound ) {
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67 |
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68 | //did not find a good java
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69 | cout << "Greenstone requires java @java.min.version@ or greater." << endl;
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70 |
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71 | //tell them if java is absent or just too old
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72 | if ( system( "./search4j -h ./@java.extracted@" ) == 0 ) {
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73 | cout << "You have java, but it is too old." << endl;
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74 | } else {
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75 | cout << "Could not find java on your system." << endl;
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76 | }
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77 |
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78 | cout << "Install java (@java.min.version@ or greater) and set JAVA_HOME or JRE_HOME, and try again" << endl;
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79 | #ifndef java_is_bundled
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80 | cout << "Or, download a greentsone3 installer with bundled java and use that instead of this one" << endl;
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81 | #endif
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82 |
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83 | //if we have found it, launch the installer
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84 | } else {
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85 |
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86 | cout << "Launching Installer ..." << endl;
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87 | int launch_exit_code = 0;
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88 | launch_exit_code = system("./search4j -m @java.min.version@ -l greenstone2.jar -h ./@java.extracted@");
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89 |
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90 | //report how it went
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91 | if ( launch_exit_code == 0 ) {
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92 | cout << "Setup complete" << endl;
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93 | } else {
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94 | cout << "The installer exited with an error" << endl;
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95 | cout << "Greenstone may not be correctly installed" << endl;
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96 | }
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97 |
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98 | }
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99 |
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100 | //change back to the original directory
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101 | chdir("..");
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102 |
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103 | //delete the temp files
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104 | cout << "Deleting the temp directory" << endl;
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105 | system( ("rm -rf " + tempdir).c_str() );
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106 |
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107 | return 0;
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108 |
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109 | }
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110 |
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111 | bool extract_bundled_file( const char data[], int size, char* filename, bool make_executable) {
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112 |
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113 | if ( size == 0 ) return false;
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114 |
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115 | //delete the file if it exists
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116 | remove( filename );
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117 |
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118 | //open the file
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119 | fstream binary_file( filename, ios::out|ios::binary );
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120 | if ( !binary_file.good() ) {
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121 | binary_file.close();
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122 | return false;
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123 | }
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124 |
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125 | //write the file
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126 | binary_file.write( data, size );
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127 | if ( !binary_file.good() ) {
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128 | binary_file.close();
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129 | return false;
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130 | }
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131 |
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132 | //close the file
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133 | binary_file.close();
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134 | if ( !binary_file.good() ) {
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135 | binary_file.close();
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136 | return false;
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137 | }
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138 |
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139 | if ( make_executable ) {
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140 | string command = "chmod a+x " + string(filename);
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141 | system( command.c_str() );
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142 | }
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143 |
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144 | return true;
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145 |
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146 | }
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