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annotate browser_side/tools.py @ 360:9834136b15ed

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added setup.py for the installation with setuptools
author souliane <souliane@mailoo.org>
date Tue, 18 Feb 2014 00:15:43 +0100
parents f488692c4903
children 187126b63170
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # Libervia: a Salut à Toi frontend
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5 # Copyright (C) 2011, 2012, 2013, 2014 Jérôme Poisson <goffi@goffi.org>
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 from pyjamas.ui.DragWidget import DragWidget
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21 from pyjamas.ui.FileUpload import FileUpload
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22 from pyjamas import Window
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23 from nativedom import NativeDOM
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24 from sat_frontends.tools import xmltools
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25 import re
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27 dom = NativeDOM()
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30 def html_sanitize(html):
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31 """Naive sanitization of HTML"""
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32 return html.replace('<', '&lt;').replace('>', '&gt;')
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35 def html_clean(html):
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36 """
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37 Remove HTML markup from the given string.
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38 Copied from nltk.clean_html (http://www.nltk.org/)
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40 @param html: the HTML string to be cleaned
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41 @type html: C{string}
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42 @rtype: C{string}
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43 """
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44
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45 # First we remove inline JavaScript/CSS:
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46 cleaned = re.sub(r"(?is)<(script|style).*?>.*?(</\1>)", "", html.strip())
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47 # Then we remove html comments. This has to be done before removing regular
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48 # tags since comments can contain '>' characters.
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49 cleaned = re.sub(r"(?s)<!--(.*?)-->[\n]?", "", cleaned)
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50 # Next we can remove the remaining tags:
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51 cleaned = re.sub(r"(?s)<.*?>", " ", cleaned)
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52 # Finally, we deal with whitespace
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53 cleaned = re.sub(r"&nbsp;", " ", cleaned)
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54 cleaned = re.sub(r" ", " ", cleaned)
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55 cleaned = re.sub(r" ", " ", cleaned)
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56 return cleaned.strip()
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59 def html_strip(html):
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60 """Strip leading/trailing white spaces, HTML line breaks and &nbsp; sequences."""
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61 cleaned = re.sub(r"^(<br/?>|&nbsp;|\s)+", "", html)
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62 cleaned = re.sub(r"(<br/?>|&nbsp;|\s)+$", "", cleaned)
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63 return cleaned
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66 def inlineRoot(xhtml):
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67 """ make root element inline """
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68 doc = dom.parseString(xhtml)
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69 return xmltools.inlineRoot(doc)
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72 def setPresenceStyle(item, state, base_style="contact"):
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73 """
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74 @item: any UI element
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75 @state: a value from ("", "chat", "away", "dnd", "xa")
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76 """
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77 if not hasattr(item, 'presence_style'):
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78 item.presence_style = None
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79 style = '%s-%s' % (base_style, state or 'connected')
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80 if style == item.presence_style:
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81 return
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82 if item.presence_style is not None:
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83 item.removeStyleName(item.presence_style)
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84 item.addStyleName(style)
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85 item.presence_style = style
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88 class DragLabel(DragWidget):
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89
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90 def __init__(self, text, _type):
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91 DragWidget.__init__(self)
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92 self._text = text
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93 self._type = _type
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95 def onDragStart(self, event):
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96 dt = event.dataTransfer
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97 dt.setData('text/plain', "%s\n%s" % (self._text, self._type))
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98 dt.setDragImage(self.getElement(), 15, 15)
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101 class LiberviaDragWidget(DragLabel):
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102 """ A DragLabel which keep the widget being dragged as class value """
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103 current = None # widget currently dragged
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105 def __init__(self, text, _type, widget):
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106 DragLabel.__init__(self, text, _type)
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107 self.widget = widget
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108
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109 def onDragStart(self, event):
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110 LiberviaDragWidget.current = self.widget
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111 DragLabel.onDragStart(self, event)
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112
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113 def onDragEnd(self, event):
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114 LiberviaDragWidget.current = None
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116
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117 class FilterFileUpload(FileUpload):
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118
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119 def __init__(self, name, max_size, types=None):
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120 """
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121 @param name: the input element name
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122 @param max_size: maximum file size in MB
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123 @param types: allowed types as a list of couples (x, y, z):
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124 - x: MIME content type e.g. "audio/ogg"
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125 - y: file extension e.g. "*.ogg"
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126 - z: description for the user e.g. "Ogg Vorbis Audio"
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127 If types is None, all file format are accepted
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128 """
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129 FileUpload.__init__(self)
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130 self.setName(name)
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131 from pyjamas import DOM
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132 while DOM.getElementById(name):
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133 name = "%s_" % name
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134 self.setID(name)
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135 self._id = name
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136 self.max_size = max_size
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137 self.types = types
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138
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139 def getFileInfo(self):
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140 from __pyjamas__ import JS
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141 JS("var file = top.document.getElementById(this._id).files[0]; return [file.size, file.type]")
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142
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143 def check(self):
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144 if self.getFilename() == "":
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145 return False
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146 (size, filetype) = self.getFileInfo()
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147 if self.types and filetype not in [x for (x, y, z) in self.types]:
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148 types = ["- %s (%s)" % (z, y) for (x, y, z) in self.types]
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149 Window.alert('This file type is not accepted.\nAccepted file types are:\n\n%s' % "\n".join(types))
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150 return False
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151 if size > self.max_size * pow(2, 20):
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152 Window.alert('This file is too big!\nMaximum file size: %d MB.' % self.max_size)
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153 return False
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154 return True