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 if (time == 'year')
 162                     d.setSeconds (d.getSeconds() + 29030400);
 163                 else
 164                     return;
 165                 show_link (url, res[0], res[1], res[2], d.toString());
 166             }
 167             else
 168                 show_link (url, res[0], res[1], res[2]);
 169         }
 170     }
 171     req.open ("POST", url + 'script.php' , true);
 172
 173     var form = new FormData();
 174     form.append ("file", file);
 175     if (time)
 176         form.append ("time", time);
 177     if (password)
 178         form.append ("key", password);
 179     if (one_time)
 180         form.append ("one_time_download", '1');
 181     if (upload_password.length > 0)
 182         form.append ("upload_password", upload_password);
 183
 184     req.send (form);
 185 }
 186
 187 function check_html5_file_api ()
 188 {
 189     if (window.File && window.FileReader && window.FileList && window.Blob)
 190         return true;
 191     return false;
 192 }
 193
 194 var async_global_transfered = 0;
 195 var async_global_url = '';
 196 var async_global_file;
 197 var async_global_ref = '';
 198 var async_global_max_size = 0;
 199 var async_global_time;
 200 var async_global_transfering = 0;
 201
 202 function async_upload_start (url, max_size, file, time, password, one_time, upload_password)
 203 {
 204     async_global_transfered = 0;
 205     async_global_url = url;
 206     async_global_file = file;
 207     async_global_max_size = max_size;
 208     async_global_time = time;
 209
 210     var req = new XMLHttpRequest ();
 211     req.addEventListener ("error", upload_failed, false);
 212     req.addEventListener ("abort", upload_failed, false);
 213     req.onreadystatechange = function ()
 214     {
 215         if (req.readyState == 4 && req.status == 200)
 216         {
 217             var res = req.responseText;
 218             if (res == "Error")
 219                 return;
 220             res = res.split ("\n");
 221             async_global_ref = res[0];
 222             var code = res[1];
 223             async_upload_push (code);
 224         }
 225     }
 226     req.open ("POST", async_global_url + 'script.php?init_async' , true);
 227
 228     var form = new FormData();
 229     form.append ("filename", async_global_file.name);
 230     form.append ("type", async_global_file.type);
 231     if (time)
 232         form.append ("time", time);
 233     if (password)
 234         form.append ("key", password);
 235     if (one_time)
 236         form.append ("one_time_download", '1');
 237     if (upload_password.length > 0)
 238         form.append ("upload_password", upload_password);
 239
 240     req.send (form);
 241 }
 242
 243 function async_upload_progress (e)
 244 {
 245     if (!e.lengthComputable && async_global_file.size != 0)
 246         return;
 247     var p = Math.round ((e.loaded + async_global_transfered) * 100 / (async_global_file.size));
 248     if (p == 100)
 249         show_upload_progression (' ');
 250     else
 251         show_upload_progression (p.toString() + '%');
 252 }
 253
 254 function async_upload_push (code)
 255 {
 256     if (async_global_transfered == async_global_file.size)
 257     {
 258         async_upload_end (code);
 259         return;
 260     }
 261     var req = new XMLHttpRequest ();
 262     req.upload.addEventListener ("progress", async_upload_progress, false);
 263     req.addEventListener ("error", upload_failed, false);
 264     req.addEventListener ("abort", upload_failed, false);
 265     req.onreadystatechange = function ()
 266     {
 267         if (req.readyState == 4 && req.status == 200)
 268         {
 269             var res = req.responseText;
 270             if (res == "Error")
 271                 return;
 272             res = res.split ("\n");
 273             var code = res[0]
 274             async_global_transfered = async_global_transfering;
 275             async_upload_push (code);
 276         }
 277     }
 278     req.open ("POST", async_global_url + 'script.php?push_async' , true);
 279
 280     var chunk_size = parseInt (async_global_max_size * 0.50);
 281     var start = async_global_transfered;
 282     var end = start + chunk_size;
 283     if (end >= async_global_file.size)
 284         end = async_global_file.size;
 285     var blob = async_global_file.slice (start, end);
 286     async_global_transfering = end;
 287
 288     var form = new FormData();
 289     form.append ("ref", async_global_ref);
 290     form.append ("data", blob);
 291     form.append ("code", code);
 292     req.send (form);
 293 }
 294
 295 function async_upload_end (code)
 296 {
 297     var req = new XMLHttpRequest ();
 298     req.addEventListener ("error", upload_failed, false);
 299     req.addEventListener ("abort", upload_failed, false);
 300     req.onreadystatechange = function ()
 301     {
 302         if (req.readyState == 4 && req.status == 200)
 303         {
 304             var res = req.responseText;
 305             if (res == "Error")
 306                 return;
 307             res = res.split ("\n");
 308             if (async_global_time != 'none')
 309             {
 310                 var d = new Date();
 311                 if (async_global_time == 'minute')
 312                     d.setSeconds (d.getSeconds() + 60);
 313                 else if (async_global_time == 'hour')
 314                     d.setSeconds (d.getSeconds() + 3600);
 315                 else if (async_global_time == 'day')
 316                     d.setSeconds (d.getSeconds() + 86400);
 317                 else if (async_global_time == 'week')
 318                     d.setSeconds (d.getSeconds() + 604800);
 319                 else if (async_global_time == 'month')
 320                     d.setSeconds (d.getSeconds() + 2419200);
 321                 else if (async_global_time == 'year')
 322                     d.setSeconds (d.getSeconds() + 29030400);
 323                 else
 324                     return;
 325                 show_link (async_global_url, res[0], res[1], res[2], d.toString());
 326             }
 327             else
 328                 show_link (async_global_url, res[0], res[1], res[2]);
 329         }
 330     }
 331     req.open ("POST", async_global_url + 'script.php?end_async' , true);
 332
 333     var form = new FormData();
 334     form.append ("ref", async_global_ref);
 335     form.append ("code", code);
 336     req.send (form);
 337 }
 338
 339 function upload (url, max_size)
 340 {
 341     if (check_html5_file_api ()
 342         && document.getElementById('file_select').files[0].size >= max_size)
 343     {
 344         async_upload_start (url,
 345             max_size,
 346             document.getElementById('file_select').files[0],
 347             document.getElementById('select_time').value,
 348             document.getElementById('input_key').value,
 349             document.getElementById('one_time_download').checked,
 350             document.getElementById('upload_password').value
 351             );
 352     }
 353     else
 354     {
 355         classic_upload (url,
 356             document.getElementById('file_select').files[0],
 357             document.getElementById('select_time').value,
 358             document.getElementById('input_key').value,
 359             document.getElementById('one_time_download').checked,
 360             document.getElementById('upload_password').value
 361             );
 362     }
 363 }