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 control_selected_file_size(max_size, error_str)
 129 {
 130     f_size = document.getElementById('file_select').files[0].size;
 131     if (max_size > 0 && f_size > max_size * 1024 * 1024)
 132     {
 133         pop_failure(error_str);
 134         document.getElementById('send').style.display = 'none';
 135     }
 136     else
 137     {
 138         document.getElementById('options').style.display = '';
 139         document.getElementById('send').style.display = '';
 140         document.getElementById('error_pop').style.display = 'none';
 141     }
 142 }
 143
 144 function pop_failure (e)
 145 {
 146     var text = "An error occured";
 147     if (typeof e !== 'undefined')
 148         text = e;
 149     text = "<p>" + text + "</p>";
 150     document.getElementById('error_pop').innerHTML = e;
 151
 152     document.getElementById('uploading').style.display = 'none';
 153     document.getElementById('error_pop').style.display = '';
 154     document.getElementById('upload').style.display = '';
 155     document.getElementById('send').style.display = '';
 156 }
 157
 158 function classic_upload (url, file, time, password, one_time, upload_password)
 159 {
 160     var req = new XMLHttpRequest ();
 161     req.upload.addEventListener ("progress", upload_progress, false);
 162     req.addEventListener ("error", pop_failure, false);
 163     req.addEventListener ("abort", pop_failure, false);
 164     req.onreadystatechange = function ()
 165     {
 166         if (req.readyState == 4 && req.status == 200)
 167         {
 168             var res = req.responseText;
 169             if (res == "Error")
 170             {
 171                 pop_failure ();
 172                 return;
 173             }
 174             res = res.split ("\n");
 175             if (time != 'none')
 176             {
 177                 var d = new Date();
 178                 if (time == 'minute')
 179                     d.setSeconds (d.getSeconds() + 60);
 180                 else if (time == 'hour')
 181                     d.setSeconds (d.getSeconds() + 3600);
 182                 else if (time == 'day')
 183                     d.setSeconds (d.getSeconds() + 86400);
 184                 else if (time == 'week')
 185                     d.setSeconds (d.getSeconds() + 604800);
 186                 else if (time == 'month')
 187                     d.setSeconds (d.getSeconds() + 2419200);
 188                 else if (time == 'year')
 189                     d.setSeconds (d.getSeconds() + 29030400);
 190                 else
 191                     return;
 192                 show_link (url, res[0], res[1], res[2], d.toString());
 193             }
 194             else
 195                 show_link (url, res[0], res[1], res[2]);
 196         }
 197     }
 198     req.open ("POST", url + 'script.php' , true);
 199
 200     var form = new FormData();
 201     form.append ("file", file);
 202     if (time)
 203         form.append ("time", time);
 204     if (password)
 205         form.append ("key", password);
 206     if (one_time)
 207         form.append ("one_time_download", '1');
 208     if (upload_password.length > 0)
 209         form.append ("upload_password", upload_password);
 210
 211     req.send (form);
 212 }
 213
 214 function check_html5_file_api ()
 215 {
 216     if (window.File && window.FileReader && window.FileList && window.Blob)
 217         return true;
 218     return false;
 219 }
 220
 221 var async_global_transfered = 0;
 222 var async_global_url = '';
 223 var async_global_file;
 224 var async_global_ref = '';
 225 var async_global_max_size = 0;
 226 var async_global_time;
 227 var async_global_transfering = 0;
 228
 229 function async_upload_start (url, max_size, file, time, password, one_time, upload_password)
 230 {
 231     async_global_transfered = 0;
 232     async_global_url = url;
 233     async_global_file = file;
 234     async_global_max_size = max_size;
 235     async_global_time = time;
 236
 237     var req = new XMLHttpRequest ();
 238     req.addEventListener ("error", pop_failure, false);
 239     req.addEventListener ("abort", pop_failure, false);
 240     req.onreadystatechange = function ()
 241     {
 242         if (req.readyState == 4 && req.status == 200)
 243         {
 244             var res = req.responseText;
 245             if (res == "Error")
 246             {
 247                 pop_failure ();
 248                 return;
 249             }
 250             res = res.split ("\n");
 251             async_global_ref = res[0];
 252             var code = res[1];
 253             async_upload_push (code);
 254         }
 255     }
 256     req.open ("POST", async_global_url + 'script.php?init_async' , true);
 257
 258     var form = new FormData();
 259     form.append ("filename", async_global_file.name);
 260     form.append ("type", async_global_file.type);
 261     if (time)
 262         form.append ("time", time);
 263     if (password)
 264         form.append ("key", password);
 265     if (one_time)
 266         form.append ("one_time_download", '1');
 267     if (upload_password.length > 0)
 268         form.append ("upload_password", upload_password);
 269
 270     req.send (form);
 271 }
 272
 273 function async_upload_progress (e)
 274 {
 275     if (!e.lengthComputable && async_global_file.size != 0)
 276         return;
 277     var p = Math.round ((e.loaded + async_global_transfered) * 100 / (async_global_file.size));
 278     if (p == 100)
 279         show_upload_progression (' ');
 280     else
 281         show_upload_progression (p.toString() + '%');
 282 }
 283
 284 function async_upload_push (code)
 285 {
 286     if (async_global_transfered == async_global_file.size)
 287     {
 288         async_upload_end (code);
 289         return;
 290     }
 291     var req = new XMLHttpRequest ();
 292     req.upload.addEventListener ("progress", async_upload_progress, false);
 293     req.addEventListener ("error", pop_failure, false);
 294     req.addEventListener ("abort", pop_failure, false);
 295     req.onreadystatechange = function ()
 296     {
 297         if (req.readyState == 4 && req.status == 200)
 298         {
 299             var res = req.responseText;
 300             if (res == "Error")
 301             {
 302                 pop_failure ();
 303                 return;
 304             }
 305             res = res.split ("\n");
 306             var code = res[0]
 307             async_global_transfered = async_global_transfering;
 308             async_upload_push (code);
 309         }
 310     }
 311     req.open ("POST", async_global_url + 'script.php?push_async' , true);
 312
 313     var chunk_size = parseInt (async_global_max_size * 0.50);
 314     var start = async_global_transfered;
 315     var end = start + chunk_size;
 316     if (end >= async_global_file.size)
 317         end = async_global_file.size;
 318     var blob = async_global_file.slice (start, end);
 319     async_global_transfering = end;
 320
 321     var form = new FormData();
 322     form.append ("ref", async_global_ref);
 323     form.append ("data", blob);
 324     form.append ("code", code);
 325     req.send (form);
 326 }
 327
 328 function async_upload_end (code)
 329 {
 330     var req = new XMLHttpRequest ();
 331     req.addEventListener ("error", pop_failure, false);
 332     req.addEventListener ("abort", pop_failure, false);
 333     req.onreadystatechange = function ()
 334     {
 335         if (req.readyState == 4 && req.status == 200)
 336         {
 337             var res = req.responseText;
 338             if (res == "Error")
 339             {
 340                 pop_failure ();
 341                 return;
 342             }
 343             res = res.split ("\n");
 344             if (async_global_time != 'none')
 345             {
 346                 var d = new Date();
 347                 if (async_global_time == 'minute')
 348                     d.setSeconds (d.getSeconds() + 60);
 349                 else if (async_global_time == 'hour')
 350                     d.setSeconds (d.getSeconds() + 3600);
 351                 else if (async_global_time == 'day')
 352                     d.setSeconds (d.getSeconds() + 86400);
 353                 else if (async_global_time == 'week')
 354                     d.setSeconds (d.getSeconds() + 604800);
 355                 else if (async_global_time == 'month')
 356                     d.setSeconds (d.getSeconds() + 2419200);
 357                 else if (async_global_time == 'year')
 358                     d.setSeconds (d.getSeconds() + 29030400);
 359                 else
 360                     return;
 361                 show_link (async_global_url, res[0], res[1], res[2], d.toString());
 362             }
 363             else
 364                 show_link (async_global_url, res[0], res[1], res[2]);
 365         }
 366     }
 367     req.open ("POST", async_global_url + 'script.php?end_async' , true);
 368
 369     var form = new FormData();
 370     form.append ("ref", async_global_ref);
 371     form.append ("code", code);
 372     req.send (form);
 373 }
 374
 375 function upload (url, max_size)
 376 {
 377     if (check_html5_file_api ()
 378         && document.getElementById('file_select').files[0].size >= max_size)
 379     {
 380         async_upload_start (url,
 381             max_size,
 382             document.getElementById('file_select').files[0],
 383             document.getElementById('select_time').value,
 384             document.getElementById('input_key').value,
 385             document.getElementById('one_time_download').checked,
 386             document.getElementById('upload_password').value
 387             );
 388     }
 389     else
 390     {
 391         classic_upload (url,
 392             document.getElementById('file_select').files[0],
 393             document.getElementById('select_time').value,
 394             document.getElementById('input_key').value,
 395             document.getElementById('one_time_download').checked,
 396             document.getElementById('upload_password').value
 397             );
 398     }
 399 }