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