1 | /**********************************************************************
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2 | *
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3 | * langaction.cpp --
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4 | * Copyright (C) 1999 The New Zealand Digital Library Project
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5 | *
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6 | * A component of the Greenstone digital library software
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7 | * from the New Zealand Digital Library Project at the
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8 | * University of Waikato, New Zealand.
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9 | *
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10 | * This program is free software; you can redistribute it and/or modify
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11 | * it under the terms of the GNU General Public License as published by
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12 | * the Free Software Foundation; either version 2 of the License, or
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13 | * (at your option) any later version.
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14 | *
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15 | * This program is distributed in the hope that it will be useful,
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16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 | * GNU General Public License for more details.
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19 | *
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20 | * You should have received a copy of the GNU General Public License
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21 | * along with this program; if not, write to the Free Software
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22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 | *
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24 | *********************************************************************/
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25 |
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26 |
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27 | #include <ctype.h>
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28 | #include <stdio.h>
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29 | #include <fstream.h>
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30 | #include <unistd.h>
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31 | #include "langaction.h"
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32 | #include "fileutil.h"
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33 | #include "gsdltimes.h"
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34 | #include "gsdltools.h"
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35 | #include "gsdlunicode.h"
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36 | #include "langdb.h"
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37 | #include "receptionist.h"
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38 | #include "errno.h"
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39 | #include <sys/utsname.h>
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40 |
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41 |
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42 | /*====================*
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43 | * GLOBAL DEFINITIONS *
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44 | *====================*/
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45 |
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46 | // text file reading buffer
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47 | const int LINESIZE = 1024;
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48 |
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49 |
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50 | /*========================*
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51 | * LOCAL UTILITY ROUTINES *
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52 | *========================*/
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53 |
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54 | bool text_t_substring (text_t &text, text_t &substr)
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55 | {
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56 | int SIZE = substr.size();
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57 |
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58 | if (text.size() >= SIZE) {
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59 | if (substr <= text) {
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60 | if (text[0] == substr[0]) {
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61 | text_t temp = "";
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62 | // copy first SIZE elements of 'text' into 'temp'
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63 | for (int size = 0; size < SIZE; size++) {
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64 | temp.push_back(text[size]);
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65 | }
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66 | if (temp == substr)
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67 | return true;
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68 | }
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69 | }
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70 | }
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71 |
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72 | return false;
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73 | }
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74 |
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75 |
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76 | /*====================*
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77 | * CLASS DEFINITIONS *
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78 | *====================*/
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79 |
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80 | langaction::langaction () {
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81 |
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82 | package = "";
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83 |
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84 | cgiarginfo arg_ainfo;
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85 |
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86 | arg_ainfo.shortname = "l";
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87 | arg_ainfo.longname = "interface language";
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88 | arg_ainfo.multiplechar = true;
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89 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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90 | arg_ainfo.argdefault = "en";
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91 | arg_ainfo.savedarginfo = cgiarginfo::must;
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92 | argsinfo.addarginfo (&cerr, arg_ainfo);
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93 |
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94 | arg_ainfo.shortname = "bl";
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95 | arg_ainfo.longname = "base language";
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96 | arg_ainfo.multiplechar = true;
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97 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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98 | arg_ainfo.argdefault = "english";
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99 | arg_ainfo.savedarginfo = cgiarginfo::must;
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100 | argsinfo.addarginfo (&cerr, arg_ainfo);
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101 |
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102 | arg_ainfo.shortname = "tlng";
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103 | arg_ainfo.longname = "translation language";
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104 | arg_ainfo.multiplechar = true;
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105 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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106 | arg_ainfo.argdefault = "french";
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107 | arg_ainfo.savedarginfo = cgiarginfo::must;
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108 | argsinfo.addarginfo (&cerr, arg_ainfo);
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109 | }
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110 |
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111 |
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112 | langaction::~langaction () {
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113 | // Nothing to do in destructor
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114 | }
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115 |
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116 |
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117 | // set_navbarmacros sets _navigationbar_ and _httpbrowseXXX_ macros
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118 | // reponse contains 1 metadata field (Title)
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119 | bool langaction::init (ostream & /*logout*/)
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120 | {
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121 | // set up GSDLOS, GSDLHOME and PATH environment variables
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122 | text_t gsdlos, path;
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123 | unsigned int path_separator = ':';
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124 | #if defined (__WIN32__)
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125 | gsdlos = "windows";
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126 | path_separator = ';';
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127 |
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128 | path = filename_cat (gsdlhome, "bin", "windows", "perl", "bin;");
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129 |
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130 | #else
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131 | struct utsname *buf = new struct utsname();
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132 | int i = uname (buf);
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133 | if (i == -1) gsdlos = "linux"; // uname failed
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134 | else gsdlos.setcstr (buf->sysname);
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135 | delete buf;
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136 | lc (gsdlos);
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137 | #endif
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138 |
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139 | pathc = getenv ("PATH");
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140 | path += filename_cat (gsdlhome, "bin", gsdlos);
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141 | path.push_back (path_separator);
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142 | path += filename_cat (gsdlhome, "bin", "script");
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143 | if (pathc != NULL) {
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144 | path.push_back (path_separator);
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145 | path += pathc;
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146 | }
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147 | path = "PATH=" + path;
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148 |
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149 | gsdlos = "GSDLOS=" + gsdlos;
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150 | text_t setgsdlhome = "GSDLHOME=" + gsdlhome;
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151 |
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152 | // these will be cleaned up in the destructor
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153 | gsdlosc = gsdlos.getcstr();
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154 | gsdlhomec = setgsdlhome.getcstr();
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155 | pathc = path.getcstr();
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156 |
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157 | putenv (gsdlosc);
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158 | putenv (gsdlhomec);
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159 | putenv (pathc);
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160 |
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161 | return true;
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162 | }
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163 |
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164 |
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165 | bool langaction::check_cgiargs (cgiargsinfoclass &/*argsinfo*/, cgiargsclass &args,
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166 | recptprotolistclass* /*protos*/, ostream &logout)
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167 | {
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168 | // Authenticate the user before allowing modifications
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169 | args["uan"] = 1;
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170 | args["ug"] = "langadmin";
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171 | return true;
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172 | }
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173 |
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174 |
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175 | void langaction::get_cgihead_info (cgiargsclass &/*args*/, recptprotolistclass* /*protos*/,
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176 | response_t &response, text_t &response_data,
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177 | ostream &logout)
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178 | {
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179 | response = content;
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180 | response_data = "text/html";
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181 | }
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182 |
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183 |
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184 | void langaction::define_internal_macros (displayclass &disp, cgiargsclass &args,
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185 | recptprotolistclass *protos, ostream &logout)
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186 | {
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187 | text_t text = "";
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188 | text_t cmd = "";
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189 | text_t dir = filename_cat(gsdlhome, "tmp", "lang");
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190 | text_t page = "";
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191 | text_t sourcelang = "";
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192 | text_t targetlang = "";
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193 |
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194 | // Get the source language from the CGI arguments
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195 | if (args["bl"] != "") {
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196 | sourcelang = args["bl"];
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197 | }
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198 |
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199 | // Get the target language from the CGI arguments
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200 | if (args["ownchoice"] != "") {
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201 | targetlang = args["ownchoice"];
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202 | }
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203 | else if (args["language"] != "") {
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204 | targetlang = args["language"];
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205 | }
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206 | else if (args["tlng"] != "") {
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207 | targetlang = args["tlng"];
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208 | }
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209 |
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210 | // Case fold both languages
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211 | for (int i = 0; i < strlen(sourcelang.getcstr()); i++) {
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212 | sourcelang[i] = tolower(sourcelang[i]);
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213 | }
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214 | for (int i = 0; i < strlen(targetlang.getcstr()); i++) {
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215 | targetlang[i] = tolower(targetlang[i]);
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216 | }
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217 |
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218 | // overwrite the global content (which should be overwritten by package)
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219 | // makes it obvious that package macros aren't defined, compared to "oops..."
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220 | disp.setmacro("content", "Global", "\\_translang:content\\_");
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221 |
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222 | // Make sure the source and target languages are different!
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223 | if (sourcelang == targetlang) {
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224 | logout << "Same language!" << endl;
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225 | args["p"] = "translang";
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226 | page = "picklanguage";
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227 | define_webpage(disp, sourcelang, targetlang, dir, page, -1, true, logout);
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228 | return;
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229 | }
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230 |
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231 | // logout << "Source lang: " << sourcelang << " Target lang: " << targetlang << endl;
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232 | text_t translation = sourcelang + "-" + targetlang;
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233 | logout << "Translation: " << translation << endl;
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234 | text_t trans_dir = filename_cat(dir, translation);
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235 |
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236 | // argument for page is of the form 'macrofile_pageno' so
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237 | // we need to split the argument to get the proper page content
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238 | text_t &arg_p = args["p"];
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239 | text_tarray splitarray;
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240 | splitchar(arg_p.begin(), arg_p.end(), '_', splitarray);
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241 |
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242 | arg_p = splitarray[0];
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243 | if (splitarray.size() > 1)
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244 | page = splitarray[splitarray.size()-1];
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245 |
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246 | //if are entering page from macro search
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247 | if (args["macroname"] != "") {
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248 | text_t macroname = args["macroname"];
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249 |
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250 | // !! TO DO !!
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251 | cmd = "perl " + filename_cat(gsdlhome, "bin", "script", "fromsearch.pl") + " " + sourcelang + " " + targetlang + " " + macroname;
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252 | logout << "COMMAND: " << cmd <<endl;
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253 |
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254 | if ((gsdl_system(cmd, true, logout)) != 0) {
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255 | logout << "Process " << cmd << " did not execute.../;-D\n";
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256 | return;
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257 | }
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258 |
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259 | define_webpage(disp, sourcelang, targetlang, trans_dir, page, -1, false, logout);
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260 | return;
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261 | }
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262 |
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263 | if (page == "fromsearch")
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264 | page = "thankyou";
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265 |
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266 | if (page == "picklanguage") {
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267 | page = "1";
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268 |
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269 | //calls the translator file to create HTML files
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270 | cmd = "perl " + filename_cat(gsdlhome, "bin", "script", "translator.pl") + " " + sourcelang + " " + targetlang;
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271 | int ret=gsdl_system(cmd, true, logout);
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272 | if (ret != 0) {
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273 | ret = ret >> 8;
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274 | text_t errmsg="<H1>Error</H1>\nrunning translator.pl: ";
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275 | if (ret==1) errmsg += "GSDLHOME unset";
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276 | else if (ret==2) errmsg += "missing arguments";
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277 | else if (ret==3) errmsg += "translation not yet initialised";
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278 | else if (ret==4) errmsg += "no source macro found";
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279 | errmsg+= " (error " + text_t(ret) + ")\n";
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280 | disp.setmacro("content", "translang", errmsg);
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281 | logout << "Process " << cmd << " did not execute.../;-D\n";
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282 | return;
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283 | }
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284 |
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285 | const recptconf &rcinfo = recpt->get_configinfo();
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286 |
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287 | // Use sendmail.pl perl script to send email events
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288 | text_t tmpmailfile = filename_cat (gsdlhome, "tmp", "lang", "email.txt");
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289 | char *tmpmailfilec = tmpmailfile.getcstr();
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290 | ofstream tmpfile (tmpmailfilec);
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291 | if (tmpfile) {
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292 | tmpfile << "[Translator Event]\n"
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293 | << "Date: " << get_date (true) << "\n"
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294 | << "Greenstone Username: " << args["un"] << "\n";
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295 | tmpfile << "The " << targetlang << " language translation was entered.\n";
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296 | tmpfile.close();
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297 |
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298 | text_t sendmail_cmd = "perl -S sendmail.pl";
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299 | sendmail_cmd += " -to \"" + rcinfo.maintainer + "\"";
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300 | sendmail_cmd += " -from \"[email protected]\"";
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301 | sendmail_cmd += " -smtp \"" + rcinfo.MailServer + "\"";
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302 | sendmail_cmd += " -subject \"Greenstone Translator Event\"";
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303 | sendmail_cmd += " -msgfile \"" + tmpmailfile + "\"";
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304 | // logout << "Sendmail command: " << sendmail_cmd << endl;
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305 | gsdl_system (sendmail_cmd, true, logout);
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306 | unlink(tmpmailfilec);
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307 | }
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308 | else {
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309 | logout << "translatoraction:: ERROR: Couldn't open "
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310 | << "temporary event log file " << tmpmailfile << " for email event.\n";
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311 | }
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312 | delete tmpmailfilec;
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313 | }
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314 |
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315 | //generates the picklanguage page
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316 | if (page.empty()) {
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317 | page = "picklanguage";
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318 | cmd = "perl " + filename_cat(gsdlhome, "bin", "script", "picklanguage.pl");
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319 | logout << cmd << endl;
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320 | int ret=gsdl_system(cmd,true,logout);
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321 | if (ret != 0) { // determine error
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322 | /*
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323 | // ret=-1 => we couldn't run the script.
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324 | // ret=1 => GSDLHOME not set.
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325 | // >=2 implies some file IO error:
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326 | // ret=2 => can't read etc/main.cfg
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327 | // ret=3 => "can't create directory $GSDLHOME/tmp/lang/
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328 | // ret=4 => can't write $dir/picklanguage.lang
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329 | **/
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330 | // maybe this should be a "real" macro for translation?!
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331 | text_t errmsg="<H1>Error</H1>\nPermissions problem: picklanguage.pl failed ";
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332 |
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333 | ret = ret >> 8; // man perlfunc for the reason for this
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334 | if (ret==255) errmsg+="running script";
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335 | else if (ret==1) errmsg+="GSDLHOME not set";
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336 | else if (ret==2) errmsg+="reading etc/main.cfg";
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337 | else if (ret==3) errmsg+="creating tmp/lang/";
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338 | else if (ret==4) errmsg+="writing picklanguage.lang";
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339 | errmsg += " (error="; errmsg += text_t(ret); errmsg += ")";
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340 | disp.setmacro("content", "translang", errmsg);
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341 |
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342 | return;
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343 | }
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344 | define_webpage(disp, sourcelang, targetlang, dir, page, -1, false, logout);
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345 | return;
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346 | }
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347 |
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348 | // Read the number of translation pages from numpages.log
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349 | text_t numpagesfilepath = filename_cat(trans_dir, "numpages.log");
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350 | ifstream numpagesfile(numpagesfilepath.getcstr(), ios::in);
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351 |
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352 | // Check file opened OK
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353 | if (!numpagesfile) {
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354 | text_t errmsg="Error: File " + numpagesfilepath + " could not be opened.";
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355 | logout << errmsg << endl;
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356 | disp.setmacro("content", "translang", errmsg);
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357 | return;
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358 | }
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359 |
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360 | // Read the number of pages from the file
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361 | int numpages;
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362 | char line[LINESIZE];
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363 | if (numpagesfile.getline(line, LINESIZE-1)) {
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364 | numpages = atoi(line);
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365 | }
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366 | numpagesfile.close();
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367 |
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368 | // if (pagenos.empty() && pageno == "")
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369 | if (numpages == 0)
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370 | page = "thankyou";
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371 |
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372 | text_t &submitargs = args[page];
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373 | text_t submit = "SUBMIT TRANSLATION";
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374 |
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375 | //if the SUBMIT TRANSLATION >> button has been pushed
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376 | if (text_t_substring(submitargs,submit)) {
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377 | //creates output stream to argsfile
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378 | text_t argsfile = filename_cat(trans_dir, "arguments.arg");
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379 | logout << "Argsfile: " << argsfile << endl;
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380 | write_args_file(args, argsfile, logout);
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381 |
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382 | //create the command line for submitting the translation
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383 | cmd = "perl " + filename_cat(gsdlhome, "bin", "script", "submit_translation.pl") + " ";
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384 | cmd += (sourcelang + " " + targetlang + " " + "arguments.arg");
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385 |
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386 | //give command to system to execute submission of translation
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387 | if((gsdl_system(cmd, true, logout)) != 0)
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388 | logout << "Process " << cmd << " did not execute\n";
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389 |
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390 | //increments which page is displayed when translation is submitted
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391 | int pageno = atoi(page.getcstr());
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392 | if (pageno >= numpages)
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393 | page = "thankyou";
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394 | else
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395 | page = (pageno + 1);
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396 | }
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397 |
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398 | define_webpage(disp, sourcelang, targetlang, trans_dir, page, numpages, false, logout);
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399 | }
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400 |
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401 |
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402 | void langaction::write_args_file (cgiargsclass &args, text_t argsfile, ostream &logout)
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403 | {
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404 | ofstream argsout(argsfile.getcstr(), ios::out);
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405 |
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406 | // Informs user and returns if output stream not opened
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407 | if (!argsout) {
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408 | logout << "Error: File " << argsfile << " could not be opened." << endl;
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409 | return;
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410 | }
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411 |
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412 | // Make the file world writable
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413 | text_t changemode = "chmod a+w " + argsfile;
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414 | gsdl_system(changemode, false, logout);
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415 |
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416 | // Write out the cgiargsclass variable to the argsout file
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417 | argsout << args;
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418 | argsout.close();
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419 | }
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420 |
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421 |
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422 | void langaction::define_webpage (displayclass &disp, text_t sourcelang, text_t targetlang,
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423 | text_t dir, text_t page, int numpages, bool error,
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424 | ostream &logout)
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425 | {
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426 | // produces HTML page with the current pages contents
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427 | // formfile is the file that contains web-form for the
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428 | // current package whose name is stored in 'package'
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429 |
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430 | text_t formfile = filename_cat(dir, page + ".lang");
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431 | ifstream readfile(formfile.getcstr(), ios::in);
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432 | if (!readfile) {
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433 | logout << "File " << formfile << " could not be found.\n";
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434 | return;
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435 | }
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436 |
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437 |
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438 | /* ============================ START WEB-FORM HTML CODE ============================ */
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439 | text_t text = "";
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440 | text += "<html><head><meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"></head><body>\n";
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441 |
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442 | text += "<input type=hidden name=\"a\" value=\"lang\">\n";
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443 | text += "<input type=hidden name=\"p\" value=\"translang_" + page + "\">\n";
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444 | text += "<input type=hidden name=\"e\" value=\"_decodedcompressedoptions_\">\n";
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445 |
|
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446 | text += "_texttranshead_";
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447 |
|
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448 | // If not a special case page display "Page x of y" and Next button
|
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449 | if ((page != "thankyou") && (page != "picklanguage") && (page != "fromsearch")) {
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450 | text += "<center><strong>";
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451 | text += " _textcurrpage_ " + page + " _textof_ " + numpages;
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452 | text += "</strong>";
|
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453 |
|
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454 | int pageno = atoi(page.getcstr());
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455 | text += " <a href=\"_gwcgi_?e=_compressedoptions_&a=lang&p=translang_";
|
---|
456 | if (pageno >= numpages)
|
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457 | text += "thankyou";
|
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458 | else
|
---|
459 | text += (pageno + 1);
|
---|
460 | text += "&baselanguage=" + sourcelang;
|
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461 | text += "&language=" + targetlang;
|
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462 | text += "\">";
|
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463 | text += "<strong>NEXT>></strong></a></center>\n";
|
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464 | }
|
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465 |
|
---|
466 | // Read in HTML from file
|
---|
467 | char line[LINESIZE];
|
---|
468 | while (readfile.getline(line, LINESIZE-1)) {
|
---|
469 | text_t temp = line;
|
---|
470 | text += temp + "\n";
|
---|
471 | }
|
---|
472 | readfile.close();
|
---|
473 |
|
---|
474 | if (page == "picklanguage" && error) {
|
---|
475 | text += "<center><strong>_textchoosedifferent_</strong></center>";
|
---|
476 | }
|
---|
477 |
|
---|
478 | // If not a special case page display "Page x of y" and Next button
|
---|
479 | if ((page != "thankyou") && (page != "picklanguage") && (page != "fromsearch")) {
|
---|
480 | text += "<center><strong>";
|
---|
481 | text += " _textcurrpage_ " + page + " _textof_ " + numpages;
|
---|
482 | text += "</strong>";
|
---|
483 |
|
---|
484 | int pageno = atoi(page.getcstr());
|
---|
485 | text += " <a href=\"_gwcgi_?e=_compressedoptions_&a=lang&p=translang_";
|
---|
486 | if (pageno >= numpages)
|
---|
487 | text += "thankyou";
|
---|
488 | else
|
---|
489 | text += (pageno + 1);
|
---|
490 | text += "&baselanguage=" + sourcelang;
|
---|
491 | text += "&language=" + targetlang;
|
---|
492 | text += "\">";
|
---|
493 | text += "<strong>NEXT>></strong></a></center>\n";
|
---|
494 | }
|
---|
495 |
|
---|
496 | if (page == "fromsearch")
|
---|
497 | text += "<center><strong> _textcurrpage_ 1 _textof_ 1</strong><br>\n";
|
---|
498 |
|
---|
499 | text += "</body></html>\n";
|
---|
500 |
|
---|
501 |
|
---|
502 | /* ============================ END WEB-FORM HTML CODE ============================ */
|
---|
503 |
|
---|
504 |
|
---|
505 | // THE FOLLOWING MACROS ARE DEFINED IN translang.dm MACRO FILE
|
---|
506 | // set the formcontent as the content of the form-page
|
---|
507 |
|
---|
508 | disp.setmacro("formcontent", "translang", text);
|
---|
509 |
|
---|
510 | // set the action for the form
|
---|
511 | disp.setmacro("formaction", "translang", "_gwcgi_");
|
---|
512 |
|
---|
513 | text_t navigationbar = "<!-- Navigation Bar -->\n";
|
---|
514 | navigationbar += "<table width=\"100%\" cellspacing=0 cellpadding=0>";
|
---|
515 | navigationbar += "<tr valign=top><td rowspan=2 align=left>_imagecollection_</td>";
|
---|
516 | navigationbar += "<td align=right>_javalinks_</td><td>";
|
---|
517 |
|
---|
518 | // if (page != "picklanguage") {
|
---|
519 | // navigationbar += "_imageserch_";
|
---|
520 | // }
|
---|
521 | navigationbar += "</td></tr></table>\n</nobr>\n";
|
---|
522 | navigationbar += "<!-- End of Navigation Bar -->\n";
|
---|
523 | disp.setmacro ("navigationbar", "translang", navigationbar);
|
---|
524 | }
|
---|
525 |
|
---|
526 |
|
---|
527 | bool langaction::do_action (cgiargsclass &args, recptprotolistclass * /*protos*/,
|
---|
528 | browsermapclass * /*browsers*/, displayclass &disp,
|
---|
529 | outconvertclass &outconvert, ostream &textout,
|
---|
530 | ostream &logout) {
|
---|
531 | text_t &arg_p = args["p"];
|
---|
532 | // logout << "Arg P: " << arg_p << endl;
|
---|
533 |
|
---|
534 | outconvertclass text2utf8;
|
---|
535 |
|
---|
536 | textout << text2utf8 << disp << ("_" + arg_p + ":header_\n")
|
---|
537 | << ("_" + arg_p + ":content_\n")
|
---|
538 | << ("_" + arg_p + ":footer_\n");
|
---|
539 |
|
---|
540 | return true;
|
---|
541 | }
|
---|