Mercurial > libervia-web

annotate src/browser/sat_browser/file_tools.py @ 467:97c72fe4a5f2

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browser_side: import fixes: - moved browser modules in a sat_browser packages, to avoid import conflicts with std lib (e.g. logging), and let pyjsbuild work normaly - refactored bad import practices: classes are most of time not imported directly, module is imported instead.
author Goffi <goffi@goffi.org>
date Mon, 09 Jun 2014 22:15:26 +0200
parents src/browser/file_tools.py@981ed669d3b3
children bbdc5357dc00
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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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19
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20 from sat.core.log import getLogger
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21 log = getLogger(__name__)
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22 from pyjamas.ui.FileUpload import FileUpload
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23 from pyjamas.ui.FormPanel import FormPanel
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24 from pyjamas import Window
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25 from pyjamas import DOM
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26 from pyjamas.ui.VerticalPanel import VerticalPanel
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27 from pyjamas.ui.HTML import HTML
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28 from pyjamas.ui.HorizontalPanel import HorizontalPanel
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29 from pyjamas.ui.Button import Button
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30 from pyjamas.ui.Label import Label
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32
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33 class FilterFileUpload(FileUpload):
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34
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35 def __init__(self, name, max_size, types=None):
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36 """
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37 @param name: the input element name and id
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38 @param max_size: maximum file size in MB
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39 @param types: allowed types as a list of couples (x, y, z):
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40 - x: MIME content type e.g. "audio/ogg"
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41 - y: file extension e.g. "*.ogg"
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42 - z: description for the user e.g. "Ogg Vorbis Audio"
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43 If types is None, all file format are accepted
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44 """
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45 FileUpload.__init__(self)
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46 self.setName(name)
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47 while DOM.getElementById(name):
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48 name = "%s_" % name
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49 self.setID(name)
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50 self._id = name
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51 self.max_size = max_size
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52 self.types = types
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53
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54 def getFileInfo(self):
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55 from __pyjamas__ import JS
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56 JS("var file = top.document.getElementById(this._id).files[0]; return [file.size, file.type]")
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57
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58 def check(self):
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59 if self.getFilename() == "":
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60 return False
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61 (size, filetype) = self.getFileInfo()
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62 if self.types and filetype not in [x for (x, y, z) in self.types]:
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63 types = []
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64 for type_ in ["- %s (%s)" % (z, y) for (x, y, z) in self.types]:
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65 if type_ not in types:
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66 types.append(type_)
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67 Window.alert('This file type is not accepted.\nAccepted file types are:\n\n%s' % "\n".join(types))
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68 return False
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69 if size > self.max_size * pow(2, 20):
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70 Window.alert('This file is too big!\nMaximum file size: %d MB.' % self.max_size)
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71 return False
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72 return True
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75 class FileUploadPanel(FormPanel):
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76
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77 def __init__(self, action_url, input_id, max_size, texts=None, close_cb=None):
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78 """Build a form panel to upload a file.
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79 @param action_url: the form action URL
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80 @param input_id: the input element name and id
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81 @param max_size: maximum file size in MB
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82 @param texts: a dict to ovewrite the default textual values
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83 @param close_cb: the close button callback method
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84 """
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85 FormPanel.__init__(self)
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86 self.texts = {'ok_button': 'Upload file',
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87 'cancel_button': 'Cancel',
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88 'body': 'Please select a file.',
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89 'submitting': '<strong>Submitting, please wait...</strong>',
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90 'errback': "Your file has been rejected...",
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91 'body_errback': 'Please select another file.',
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92 'callback': "Your file has been accepted!"}
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93 if isinstance(texts, dict):
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94 self.texts.update(texts)
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95 self.close_cb = close_cb
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96 self.setEncoding(FormPanel.ENCODING_MULTIPART)
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97 self.setMethod(FormPanel.METHOD_POST)
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98 self.setAction(action_url)
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99 self.vPanel = VerticalPanel()
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100 self.message = HTML(self.texts['body'])
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101 self.vPanel.add(self.message)
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102
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103 hPanel = HorizontalPanel()
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104 hPanel.setSpacing(5)
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105 hPanel.setStyleName('marginAuto')
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106 self.file_upload = FilterFileUpload(input_id, max_size)
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107 self.vPanel.add(self.file_upload)
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108
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109 self.upload_btn = Button(self.texts['ok_button'], getattr(self, "onSubmitBtnClick"))
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110 hPanel.add(self.upload_btn)
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111 hPanel.add(Button(self.texts['cancel_button'], getattr(self, "onCloseBtnClick")))
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112
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113 self.status = Label()
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114 hPanel.add(self.status)
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115
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116 self.vPanel.add(hPanel)
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117
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118 self.add(self.vPanel)
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119 self.addFormHandler(self)
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120
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121 def setCloseCb(self, close_cb):
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122 self.close_cb = close_cb
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123
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124 def onCloseBtnClick(self):
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125 if self.close_cb:
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126 self.close_cb()
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127 else:
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128 log.warning("no close method defined")
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129
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130 def onSubmitBtnClick(self):
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131 if not self.file_upload.check():
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132 return
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133 self.message.setHTML(self.texts['submitting'])
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134 self.upload_btn.setEnabled(False)
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135 self.submit()
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136
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137 def onSubmit(self, event):
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138 pass
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139
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140 def onSubmitComplete(self, event):
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141 result = event.getResults()
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142 if result != "OK":
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143 Window.alert(self.texts['errback'])
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144 self.message.setHTML(self.texts['body_errback'])
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145 self.upload_btn.setEnabled(True)
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146 else:
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147 Window.alert(self.texts['callback'])
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148 self.close_cb()