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, date)
  20 {
  21     var download_link = url + 'file.php?h=' + reference;
  22     var delete_link = download_link + '&amp;d=' + delete_code;
  23     var delete_link_href = download_link + '&d=' + delete_code;
  24     document.getElementById('upload_link').innerHTML = download_link;
  25     document.getElementById('upload_link').href = download_link;
  26     document.getElementById('delete_link').innerHTML = delete_link;
  27     document.getElementById('delete_link').href = delete_link_href;
  28     if (date)
  29     {
  30         document.getElementById('date').innerHTML = date;
  31         document.getElementById('validity').style.display = '';
  32     }
  33     else
  34         document.getElementById('validity').style.display = 'none';
  35
  36     document.getElementById('uploading').style.display = 'none';
  37     document.getElementById('upload').style.display = 'none';
  38     document.getElementById('upload_finished').style.display = '';
  39     document.title = 'Jirafeau - 100%';
  40 }
  41
  42 function show_upload_progression (p)
  43 {
  44     document.getElementById('uploaded_percentage').innerHTML = p;
  45     document.title = 'Jirafeau - ' + p;
  46 }
  47
  48 function upload_progress (e)
  49 {
  50     if (!e.lengthComputable)
  51         return;
  52     /* Show the user the operation do not reach 100%, the server need time
  53      * to give a response before providing the link.
  54      */
  55     var p = Math.round (e.loaded * 99 / e.total);
  56     show_upload_progression (p.toString() + '%');
  57 }
  58
  59 function upload_failed (e)
  60 {
  61     /* Todo: Considere showing a error div. */
  62     alert ('Sorry, upload failed');
  63 }
  64
  65 function classic_upload (url, file, time, password, one_time)
  66 {
  67     var req = new XMLHttpRequest ();
  68     req.upload.addEventListener ("progress", upload_progress, false);
  69     req.addEventListener ("error", upload_failed, false);
  70     req.addEventListener ("abort", upload_failed, false);
  71     req.onreadystatechange = function ()
  72     {
  73         if (req.readyState == 4 && req.status == 200)
  74         {
  75             var res = req.responseText;
  76             if (res == "Error")
  77                 return;
  78             res = res.split ("\n");
  79             if (time != 'none')
  80             {
  81                 var d = new Date();
  82                 if (time == 'minute')
  83                     d.setSeconds (d.getSeconds() + 60);
  84                 else if (time == 'hour')
  85                     d.setSeconds (d.getSeconds() + 3600);
  86                 else if (time == 'day')
  87                     d.setSeconds (d.getSeconds() + 86400);
  88                 else if (time == 'week')
  89                     d.setSeconds (d.getSeconds() + 604800);
  90                 else if (time == 'month')
  91                     d.setSeconds (d.getSeconds() + 2419200);
  92                 else
  93                     return;
  94                 show_link (url, res[0], res[1], d.toString());
  95             }
  96             else
  97                 show_link (url, res[0], res[1]);
  98         }
  99     }
 100     req.open ("POST", url + 'script.php' , true);
 101
 102     var form = new FormData();
 103     form.append ("file", file);
 104     if (time)
 105         form.append ("time", time);
 106     if (password)
 107         form.append ("key", password);
 108     if (one_time)
 109         form.append ("one_time_download", '1');
 110     req.send (form);
 111 }
 112
 113 function check_html5_file_api ()
 114 {
 115     if (window.File && window.FileReader && window.FileList && window.Blob)
 116         return true;
 117     return false;
 118 }
 119
 120 var async_global_transfered = 0;
 121 var async_global_url = '';
 122 var async_global_file;
 123 var async_global_ref = '';
 124 var async_global_max_size = 0;
 125 var async_global_time;
 126 var async_global_transfering = 0;
 127
 128 function async_upload_start (url, max_size, file, time, password, one_time)
 129 {
 130     async_global_transfered = 0;
 131     async_global_url = url;
 132     async_global_file = file;
 133     async_global_max_size = max_size;
 134     async_global_time = time;
 135
 136     var req = new XMLHttpRequest ();
 137     req.addEventListener ("error", upload_failed, false);
 138     req.addEventListener ("abort", upload_failed, false);
 139     req.onreadystatechange = function ()
 140     {
 141         if (req.readyState == 4 && req.status == 200)
 142         {
 143             var res = req.responseText;
 144             if (res == "Error")
 145                 return;
 146             res = res.split ("\n");
 147             async_global_ref = res[0];
 148             var code = res[1];
 149             async_upload_push (code);
 150         }
 151     }
 152     req.open ("POST", async_global_url + 'script.php?init_async' , true);
 153
 154     var form = new FormData();
 155     form.append ("filename", async_global_file.name);
 156     form.append ("type", async_global_file.type);
 157     if (time)
 158         form.append ("time", time);
 159     if (password)
 160         form.append ("key", password);
 161     if (one_time)
 162         form.append ("one_time_download", '1');
 163     req.send (form);
 164 }
 165
 166 function async_upload_progress (e)
 167 {
 168     if (!e.lengthComputable && async_global_file.size != 0)
 169         return;
 170     var p = Math.round ((e.loaded + async_global_transfered) * 99 / (async_global_file.size));
 171     show_upload_progression (p.toString() + '%');
 172 }
 173
 174 function async_upload_push (code)
 175 {
 176     if (async_global_transfered == async_global_file.size)
 177     {
 178         async_upload_end (code);
 179         return;
 180     }
 181     var req = new XMLHttpRequest ();
 182     req.upload.addEventListener ("progress", async_upload_progress, false);
 183     req.addEventListener ("error", upload_failed, false);
 184     req.addEventListener ("abort", upload_failed, false);
 185     req.onreadystatechange = function ()
 186     {
 187         if (req.readyState == 4 && req.status == 200)
 188         {
 189             var res = req.responseText;
 190             if (res == "Error")
 191                 return;
 192             res = res.split ("\n");
 193             var code = res[0]
 194             async_global_transfered = async_global_transfering;
 195             async_upload_push (code);
 196         }
 197     }
 198     req.open ("POST", async_global_url + 'script.php?push_async' , true);
 199
 200     var chunk_size = parseInt (async_global_max_size * 0.90);
 201     var start = async_global_transfered;
 202     var end = start + chunk_size;
 203     if (end >= async_global_file.size)
 204         end = async_global_file.size;
 205     var blob = async_global_file.slice (start, end);
 206     async_global_transfering = end;
 207
 208     var form = new FormData();
 209     form.append ("ref", async_global_ref);
 210     form.append ("data", blob);
 211     form.append ("code", code);
 212     req.send (form);
 213 }
 214
 215 function async_upload_end (code)
 216 {
 217     var req = new XMLHttpRequest ();
 218     req.addEventListener ("error", upload_failed, false);
 219     req.addEventListener ("abort", upload_failed, false);
 220     req.onreadystatechange = function ()
 221     {
 222         if (req.readyState == 4 && req.status == 200)
 223         {
 224             var res = req.responseText;
 225             if (res == "Error")
 226                 return;
 227             res = res.split ("\n");
 228             if (async_global_time != 'none')
 229             {
 230                 var d = new Date();
 231                 if (async_global_time == 'minute')
 232                     d.setSeconds (d.getSeconds() + 60);
 233                 else if (async_global_time == 'hour')
 234                     d.setSeconds (d.getSeconds() + 3600);
 235                 else if (async_global_time == 'day')
 236                     d.setSeconds (d.getSeconds() + 86400);
 237                 else if (async_global_time == 'week')
 238                     d.setSeconds (d.getSeconds() + 604800);
 239                 else if (async_global_time == 'month')
 240                     d.setSeconds (d.getSeconds() + 2419200);
 241                 else
 242                     return;
 243                 show_link (async_global_url, res[0], res[1], d.toString());
 244             }
 245             else
 246                 show_link (async_global_url, res[0], res[1]);
 247         }
 248     }
 249     req.open ("POST", async_global_url + 'script.php?end_async' , true);
 250
 251     var form = new FormData();
 252     form.append ("ref", async_global_ref);
 253     form.append ("code", code);
 254     req.send (form);
 255 }
 256
 257 function upload (url, max_size)
 258 {
 259     if (check_html5_file_api ()
 260         && document.getElementById('file_select').files[0].size >= max_size)
 261     {
 262         async_upload_start (url,
 263             max_size,
 264             document.getElementById('file_select').files[0],
 265             document.getElementById('select_time').value,
 266             document.getElementById('input_key').value,
 267             document.getElementById('one_time_download').checked
 268             );
 269     }
 270     else
 271     {
 272         classic_upload (url,
 273             document.getElementById('file_select').files[0],
 274             document.getElementById('select_time').value,
 275             document.getElementById('input_key').value,
 276             document.getElementById('one_time_download').checked
 277             );
 278     }
 279 }