lib/functions.js

   1 /*
   2  *  Jirafeau, your web file repository
   3  *  Copyright (C) 2012  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     var download_link = url + 'file.php?h=' + reference;
  22     var download_link_href = url + 'file.php?h=' + reference;
  23     if (crypt_key.length > 0)
  24     {
  25         download_link += '&amp;k=' + crypt_key;
  26         download_link_href += '&k=' + crypt_key;
  27     }
  28
  29     var delete_link = url + 'file.php?h=' + reference + '&amp;d=' + delete_code;
  30     var delete_link_href = url + 'file.php?h=' + reference + '&d=' + delete_code;
  31
  32     document.getElementById('upload_link').innerHTML = download_link;
  33     document.getElementById('upload_link').href = download_link_href;
  34     document.getElementById('delete_link').innerHTML = delete_link;
  35     document.getElementById('delete_link').href = delete_link_href;
  36     if (date)
  37     {
  38         document.getElementById('date').innerHTML = date;
  39         document.getElementById('validity').style.display = '';
  40     }
  41     else
  42         document.getElementById('validity').style.display = 'none';
  43
  44     document.getElementById('uploading').style.display = 'none';
  45     document.getElementById('upload').style.display = 'none';
  46     document.getElementById('upload_finished').style.display = '';
  47     document.title = 'Jirafeau - 100%';
  48 }
  49
  50 function show_upload_progression (p)
  51 {
  52     document.getElementById('uploaded_percentage').innerHTML = p;
  53     document.title = 'Jirafeau - ' + p;
  54 }
  55
  56 function upload_progress (e)
  57 {
  58     if (!e.lengthComputable)
  59         return;
  60     /* Show the user the operation do not reach 100%, the server need time
  61      * to give a response before providing the link.
  62      */
  63     var p = Math.round (e.loaded * 100 / e.total);
  64     if (p == 100)
  65         show_upload_progression ('Finalizing ...');
  66     else
  67         show_upload_progression (p.toString() + '%');
  68 }
  69
  70 function upload_failed (e)
  71 {
  72     /* Todo: Considere showing a error div. */
  73     alert ('Sorry, upload failed');
  74 }
  75
  76 function classic_upload (url, file, time, password, one_time)
  77 {
  78     var req = new XMLHttpRequest ();
  79     req.upload.addEventListener ("progress", upload_progress, false);
  80     req.addEventListener ("error", upload_failed, false);
  81     req.addEventListener ("abort", upload_failed, false);
  82     req.onreadystatechange = function ()
  83     {
  84         if (req.readyState == 4 && req.status == 200)
  85         {
  86             var res = req.responseText;
  87             if (res == "Error")
  88                 return;
  89             res = res.split ("\n");
  90             if (time != 'none')
  91             {
  92                 var d = new Date();
  93                 if (time == 'minute')
  94                     d.setSeconds (d.getSeconds() + 60);
  95                 else if (time == 'hour')
  96                     d.setSeconds (d.getSeconds() + 3600);
  97                 else if (time == 'day')
  98                     d.setSeconds (d.getSeconds() + 86400);
  99                 else if (time == 'week')
 100                     d.setSeconds (d.getSeconds() + 604800);
 101                 else if (time == 'month')
 102                     d.setSeconds (d.getSeconds() + 2419200);
 103                 else
 104                     return;
 105                 show_link (url, res[0], res[1], res[2], d.toString());
 106             }
 107             else
 108                 show_link (url, res[0], res[1], res[2]);
 109         }
 110     }
 111     req.open ("POST", url + 'script.php' , true);
 112
 113     var form = new FormData();
 114     form.append ("file", file);
 115     if (time)
 116         form.append ("time", time);
 117     if (password)
 118         form.append ("key", password);
 119     if (one_time)
 120         form.append ("one_time_download", '1');
 121     req.send (form);
 122 }
 123
 124 function check_html5_file_api ()
 125 {
 126     if (window.File && window.FileReader && window.FileList && window.Blob)
 127         return true;
 128     return false;
 129 }
 130
 131 var async_global_transfered = 0;
 132 var async_global_url = '';
 133 var async_global_file;
 134 var async_global_ref = '';
 135 var async_global_max_size = 0;
 136 var async_global_time;
 137 var async_global_transfering = 0;
 138
 139 function async_upload_start (url, max_size, file, time, password, one_time)
 140 {
 141     async_global_transfered = 0;
 142     async_global_url = url;
 143     async_global_file = file;
 144     async_global_max_size = max_size;
 145     async_global_time = time;
 146
 147     var req = new XMLHttpRequest ();
 148     req.addEventListener ("error", upload_failed, false);
 149     req.addEventListener ("abort", upload_failed, false);
 150     req.onreadystatechange = function ()
 151     {
 152         if (req.readyState == 4 && req.status == 200)
 153         {
 154             var res = req.responseText;
 155             if (res == "Error")
 156                 return;
 157             res = res.split ("\n");
 158             async_global_ref = res[0];
 159             var code = res[1];
 160             async_upload_push (code);
 161         }
 162     }
 163     req.open ("POST", async_global_url + 'script.php?init_async' , true);
 164
 165     var form = new FormData();
 166     form.append ("filename", async_global_file.name);
 167     form.append ("type", async_global_file.type);
 168     if (time)
 169         form.append ("time", time);
 170     if (password)
 171         form.append ("key", password);
 172     if (one_time)
 173         form.append ("one_time_download", '1');
 174     req.send (form);
 175 }
 176
 177 function async_upload_progress (e)
 178 {
 179     if (!e.lengthComputable && async_global_file.size != 0)
 180         return;
 181     var p = Math.round ((e.loaded + async_global_transfered) * 100 / (async_global_file.size));
 182     if (p == 100)
 183         show_upload_progression ('Finalizing...');
 184     else
 185         show_upload_progression (p.toString() + '%');
 186 }
 187
 188 function async_upload_push (code)
 189 {
 190     if (async_global_transfered == async_global_file.size)
 191     {
 192         async_upload_end (code);
 193         return;
 194     }
 195     var req = new XMLHttpRequest ();
 196     req.upload.addEventListener ("progress", async_upload_progress, false);
 197     req.addEventListener ("error", upload_failed, false);
 198     req.addEventListener ("abort", upload_failed, false);
 199     req.onreadystatechange = function ()
 200     {
 201         if (req.readyState == 4 && req.status == 200)
 202         {
 203             var res = req.responseText;
 204             if (res == "Error")
 205                 return;
 206             res = res.split ("\n");
 207             var code = res[0]
 208             async_global_transfered = async_global_transfering;
 209             async_upload_push (code);
 210         }
 211     }
 212     req.open ("POST", async_global_url + 'script.php?push_async' , true);
 213
 214     var chunk_size = parseInt (async_global_max_size * 0.50);
 215     var start = async_global_transfered;
 216     var end = start + chunk_size;
 217     if (end >= async_global_file.size)
 218         end = async_global_file.size;
 219     var blob = async_global_file.slice (start, end);
 220     async_global_transfering = end;
 221
 222     var form = new FormData();
 223     form.append ("ref", async_global_ref);
 224     form.append ("data", blob);
 225     form.append ("code", code);
 226     req.send (form);
 227 }
 228
 229 function async_upload_end (code)
 230 {
 231     var req = new XMLHttpRequest ();
 232     req.addEventListener ("error", upload_failed, false);
 233     req.addEventListener ("abort", upload_failed, false);
 234     req.onreadystatechange = function ()
 235     {
 236         if (req.readyState == 4 && req.status == 200)
 237         {
 238             var res = req.responseText;
 239             if (res == "Error")
 240                 return;
 241             res = res.split ("\n");
 242             if (async_global_time != 'none')
 243             {
 244                 var d = new Date();
 245                 if (async_global_time == 'minute')
 246                     d.setSeconds (d.getSeconds() + 60);
 247                 else if (async_global_time == 'hour')
 248                     d.setSeconds (d.getSeconds() + 3600);
 249                 else if (async_global_time == 'day')
 250                     d.setSeconds (d.getSeconds() + 86400);
 251                 else if (async_global_time == 'week')
 252                     d.setSeconds (d.getSeconds() + 604800);
 253                 else if (async_global_time == 'month')
 254                     d.setSeconds (d.getSeconds() + 2419200);
 255                 else
 256                     return;
 257                 show_link (async_global_url, res[0], res[1], res[2], d.toString());
 258             }
 259             else
 260                 show_link (async_global_url, res[0], res[1], res[2]);
 261         }
 262     }
 263     req.open ("POST", async_global_url + 'script.php?end_async' , true);
 264
 265     var form = new FormData();
 266     form.append ("ref", async_global_ref);
 267     form.append ("code", code);
 268     req.send (form);
 269 }
 270
 271 function upload (url, max_size)
 272 {
 273     if (check_html5_file_api ()
 274         && document.getElementById('file_select').files[0].size >= max_size)
 275     {
 276         async_upload_start (url,
 277             max_size,
 278             document.getElementById('file_select').files[0],
 279             document.getElementById('select_time').value,
 280             document.getElementById('input_key').value,
 281             document.getElementById('one_time_download').checked
 282             );
 283     }
 284     else
 285     {
 286         classic_upload (url,
 287             document.getElementById('file_select').files[0],
 288             document.getElementById('select_time').value,
 289             document.getElementById('input_key').value,
 290             document.getElementById('one_time_download').checked
 291             );
 292     }
 293 }