lib/functions.js

   1 /*
   2  *  Jirafeau, your web file repository
   3  *  Copyright (C) 2015  Jerome Jutteau <j.jutteau@gmail.com>
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU Affero General Public License as
   7  *  published by the Free Software Foundation, either version 3 of the
   8  *  License, or (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU Affero General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU Affero General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 function show_link (url, reference, delete_code, crypt_key, date)
  20 {
  21     // Download page if element exists
  22     var download_link = url + 'f.php?h=' + reference;
  23     var download_link_href = url + 'f.php?h=' + reference;
  24     if (crypt_key.length > 0)
  25     {
  26         download_link += '&amp;k=' + crypt_key;
  27         download_link_href += '&k=' + crypt_key;
  28     }
  29     if (!!document.getElementById('upload_finished_download_page'))
  30     {
  31         document.getElementById('upload_link').innerHTML = download_link;
  32         document.getElementById('upload_link').href = download_link_href;
  33     }
  34
  35     // Is the preview allowed ?
  36     if (!!document.getElementById('preview_link'))
  37     {
  38         document.getElementById('upload_finished_preview').style.display = 'none';
  39         var preview_link = url + 'f.php?h=' + reference + '&amp;p=1';
  40         var preview_link_href = url + 'f.php?h=' + reference + '&p=1';
  41         if (crypt_key.length > 0)
  42         {
  43             preview_link += '&amp;k=' + crypt_key;
  44             preview_link_href += '&k=' + crypt_key;
  45         }
  46
  47         // Test if content can be previewed
  48          type = document.getElementById('file_select').files[0].type;
  49          if (type.indexOf("image") > -1 ||
  50              type.indexOf("audio") > -1 ||
  51              type.indexOf("text") > -1 ||
  52              type.indexOf("video") > -1)
  53          {
  54             document.getElementById('preview_link').innerHTML = preview_link;
  55             document.getElementById('preview_link').href = preview_link_href;
  56             document.getElementById('upload_finished_preview').style.display = '';
  57          }
  58     }
  59
  60     // Only show link to password page if password is set
  61     document.getElementById('upload_password_page').style.display = 'none';
  62     if (document.getElementById('input_key').value.length > 0)
  63     {
  64         if (!!document.getElementById('upload_finished_download_page'))
  65             document.getElementById('upload_finished_download_page').style.display = 'none';
  66         document.getElementById('upload_password_page').style.display = '';
  67         if (!!document.getElementById('upload_finished_preview'))
  68             document.getElementById('upload_finished_preview').style.display = 'none';
  69         document.getElementById('upload_direct_download').style.display = 'none';
  70
  71         document.getElementById('password_link').innerHTML = download_link;
  72         document.getElementById('password_link').href = download_link_href;
  73     }
  74     // Direct download link
  75     else
  76     {
  77         var direct_download_link = url + 'f.php?h=' + reference + '&amp;d=1';
  78         var direct_download_link_href = url + 'f.php?h=' + reference + '&d=1';
  79         if (crypt_key.length > 0)
  80         {
  81             direct_download_link += '&amp;k=' + crypt_key;
  82             direct_download_link_href += '&k=' + crypt_key;
  83         }
  84         document.getElementById('direct_link').innerHTML = direct_download_link;
  85         document.getElementById('direct_link').href = direct_download_link_href;
  86     }
  87
  88     // Delete link
  89     var delete_link = url + 'f.php?h=' + reference + '&amp;d=' + delete_code;
  90     var delete_link_href = url + 'f.php?h=' + reference + '&d=' + delete_code;
  91     document.getElementById('delete_link').innerHTML = delete_link;
  92     document.getElementById('delete_link').href = delete_link_href;
  93
  94     if (date)
  95     {
  96         document.getElementById('date').innerHTML = date;
  97         document.getElementById('validity').style.display = '';
  98     }
  99     else
 100         document.getElementById('validity').style.display = 'none';
 101
 102     document.getElementById('uploading').style.display = 'none';
 103     document.getElementById('upload').style.display = 'none';
 104     document.getElementById('upload_finished').style.display = '';
 105     document.title = 'Jirafeau - 100%';
 106 }
 107
 108 function show_upload_progression (p)
 109 {
 110     document.getElementById('uploaded_percentage').innerHTML = p;
 111     document.title = 'Jirafeau - ' + p;
 112 }
 113
 114 function upload_progress (e)
 115 {
 116     if (!e.lengthComputable)
 117         return;
 118     /* Show the user the operation do not reach 100%, the server need time
 119      * to give a response before providing the link.
 120      */
 121     var p = Math.round (e.loaded * 100 / e.total);
 122     if (p == 100)
 123         show_upload_progression (' ');
 124     else
 125         show_upload_progression (p.toString() + '%');
 126 }
 127
 128 function upload_failed (e)
 129 {
 130     /* Todo: Considere showing a error div. */
 131     alert ('Sorry, upload failed');
 132 }
 133
 134 function classic_upload (url, file, time, password, one_time, upload_password)
 135 {
 136     var req = new XMLHttpRequest ();
 137     req.upload.addEventListener ("progress", upload_progress, false);
 138     req.addEventListener ("error", upload_failed, false);
 139     req.addEventListener ("abort", upload_failed, false);
 140     req.onreadystatechange = function ()
 141     {
 142         if (req.readyState == 4 && req.status == 200)
 143         {
 144             var res = req.responseText;
 145             if (res == "Error")
 146                 return;
 147             res = res.split ("\n");
 148             if (time != 'none')
 149             {
 150                 var d = new Date();
 151                 if (time == 'minute')
 152                     d.setSeconds (d.getSeconds() + 60);
 153                 else if (time == 'hour')
 154                     d.setSeconds (d.getSeconds() + 3600);
 155                 else if (time == 'day')
 156                     d.setSeconds (d.getSeconds() + 86400);
 157                 else if (time == 'week')
 158                     d.setSeconds (d.getSeconds() + 604800);
 159                 else if (time == 'month')
 160                     d.setSeconds (d.getSeconds() + 2419200);
 161                 else
 162                     return;
 163                 show_link (url, res[0], res[1], res[2], d.toString());
 164             }
 165             else
 166                 show_link (url, res[0], res[1], res[2]);
 167         }
 168     }
 169     req.open ("POST", url + 'script.php' , true);
 170
 171     var form = new FormData();
 172     form.append ("file", file);
 173     if (time)
 174         form.append ("time", time);
 175     if (password)
 176         form.append ("key", password);
 177     if (one_time)
 178         form.append ("one_time_download", '1');
 179     if (upload_password.length > 0)
 180         form.append ("upload_password", upload_password);
 181
 182     req.send (form);
 183 }
 184
 185 function check_html5_file_api ()
 186 {
 187     if (window.File && window.FileReader && window.FileList && window.Blob)
 188         return true;
 189     return false;
 190 }
 191
 192 var async_global_transfered = 0;
 193 var async_global_url = '';
 194 var async_global_file;
 195 var async_global_ref = '';
 196 var async_global_max_size = 0;
 197 var async_global_time;
 198 var async_global_transfering = 0;
 199
 200 function async_upload_start (url, max_size, file, time, password, one_time, upload_password)
 201 {
 202     async_global_transfered = 0;
 203     async_global_url = url;
 204     async_global_file = file;
 205     async_global_max_size = max_size;
 206     async_global_time = time;
 207
 208     var req = new XMLHttpRequest ();
 209     req.addEventListener ("error", upload_failed, false);
 210     req.addEventListener ("abort", upload_failed, false);
 211     req.onreadystatechange = function ()
 212     {
 213         if (req.readyState == 4 && req.status == 200)
 214         {
 215             var res = req.responseText;
 216             if (res == "Error")
 217                 return;
 218             res = res.split ("\n");
 219             async_global_ref = res[0];
 220             var code = res[1];
 221             async_upload_push (code);
 222         }
 223     }
 224     req.open ("POST", async_global_url + 'script.php?init_async' , true);
 225
 226     var form = new FormData();
 227     form.append ("filename", async_global_file.name);
 228     form.append ("type", async_global_file.type);
 229     if (time)
 230         form.append ("time", time);
 231     if (password)
 232         form.append ("key", password);
 233     if (one_time)
 234         form.append ("one_time_download", '1');
 235     if (upload_password.length > 0)
 236         form.append ("upload_password", upload_password);
 237
 238     req.send (form);
 239 }
 240
 241 function async_upload_progress (e)
 242 {
 243     if (!e.lengthComputable && async_global_file.size != 0)
 244         return;
 245     var p = Math.round ((e.loaded + async_global_transfered) * 100 / (async_global_file.size));
 246     if (p == 100)
 247         show_upload_progression (' ');
 248     else
 249         show_upload_progression (p.toString() + '%');
 250 }
 251
 252 function async_upload_push (code)
 253 {
 254     if (async_global_transfered == async_global_file.size)
 255     {
 256         async_upload_end (code);
 257         return;
 258     }
 259     var req = new XMLHttpRequest ();
 260     req.upload.addEventListener ("progress", async_upload_progress, false);
 261     req.addEventListener ("error", upload_failed, false);
 262     req.addEventListener ("abort", upload_failed, false);
 263     req.onreadystatechange = function ()
 264     {
 265         if (req.readyState == 4 && req.status == 200)
 266         {
 267             var res = req.responseText;
 268             if (res == "Error")
 269                 return;
 270             res = res.split ("\n");
 271             var code = res[0]
 272             async_global_transfered = async_global_transfering;
 273             async_upload_push (code);
 274         }
 275     }
 276     req.open ("POST", async_global_url + 'script.php?push_async' , true);
 277
 278     var chunk_size = parseInt (async_global_max_size * 0.50);
 279     var start = async_global_transfered;
 280     var end = start + chunk_size;
 281     if (end >= async_global_file.size)
 282         end = async_global_file.size;
 283     var blob = async_global_file.slice (start, end);
 284     async_global_transfering = end;
 285
 286     var form = new FormData();
 287     form.append ("ref", async_global_ref);
 288     form.append ("data", blob);
 289     form.append ("code", code);
 290     req.send (form);
 291 }
 292
 293 function async_upload_end (code)
 294 {
 295     var req = new XMLHttpRequest ();
 296     req.addEventListener ("error", upload_failed, false);
 297     req.addEventListener ("abort", upload_failed, false);
 298     req.onreadystatechange = function ()
 299     {
 300         if (req.readyState == 4 && req.status == 200)
 301         {
 302             var res = req.responseText;
 303             if (res == "Error")
 304                 return;
 305             res = res.split ("\n");
 306             if (async_global_time != 'none')
 307             {
 308                 var d = new Date();
 309                 if (async_global_time == 'minute')
 310                     d.setSeconds (d.getSeconds() + 60);
 311                 else if (async_global_time == 'hour')
 312                     d.setSeconds (d.getSeconds() + 3600);
 313                 else if (async_global_time == 'day')
 314                     d.setSeconds (d.getSeconds() + 86400);
 315                 else if (async_global_time == 'week')
 316                     d.setSeconds (d.getSeconds() + 604800);
 317                 else if (async_global_time == 'month')
 318                     d.setSeconds (d.getSeconds() + 2419200);
 319                 else
 320                     return;
 321                 show_link (async_global_url, res[0], res[1], res[2], d.toString());
 322             }
 323             else
 324                 show_link (async_global_url, res[0], res[1], res[2]);
 325         }
 326     }
 327     req.open ("POST", async_global_url + 'script.php?end_async' , true);
 328
 329     var form = new FormData();
 330     form.append ("ref", async_global_ref);
 331     form.append ("code", code);
 332     req.send (form);
 333 }
 334
 335 function upload (url, max_size)
 336 {
 337     if (check_html5_file_api ()
 338         && document.getElementById('file_select').files[0].size >= max_size)
 339     {
 340         async_upload_start (url,
 341             max_size,
 342             document.getElementById('file_select').files[0],
 343             document.getElementById('select_time').value,
 344             document.getElementById('input_key').value,
 345             document.getElementById('one_time_download').checked,
 346             document.getElementById('upload_password').value
 347             );
 348     }
 349     else
 350     {
 351         classic_upload (url,
 352             document.getElementById('file_select').files[0],
 353             document.getElementById('select_time').value,
 354             document.getElementById('input_key').value,
 355             document.getElementById('one_time_download').checked,
 356             document.getElementById('upload_password').value
 357             );
 358     }
 359 }