Mercurial > libervia-web
annotate src/browser/sat_browser/file_tools.py @ 712:bf562fb9c273
server_side: use Jinja2 template engine for static blog
author | souliane <souliane@mailoo.org> |
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date | Mon, 13 Jul 2015 18:11:38 +0200 |
parents | 9877607c719a |
children | f8a7a046ff9c |
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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 |
685 | 5 # Copyright (C) 2011, 2012, 2013, 2014, 2015 Jérôme Poisson <goffi@goffi.org> |
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6 |
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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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11 |
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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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16 |
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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 constants import Const as C |
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23 from sat.core.i18n import _, D_ |
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24 from pyjamas.ui.FileUpload import FileUpload |
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25 from pyjamas.ui.FormPanel import FormPanel |
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26 from pyjamas import Window |
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27 from pyjamas import DOM |
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28 from pyjamas.ui.VerticalPanel import VerticalPanel |
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29 from pyjamas.ui.HTML import HTML |
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30 from pyjamas.ui.HorizontalPanel import HorizontalPanel |
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31 from pyjamas.ui.Button import Button |
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32 from pyjamas.ui.Label import Label |
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33 |
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34 |
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35 class FilterFileUpload(FileUpload): |
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36 |
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37 def __init__(self, name, max_size, types=None): |
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38 """ |
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39 @param name: the input element name and id |
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40 @param max_size: maximum file size in MB |
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41 @param types: allowed types as a list of couples (x, y, z): |
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42 - x: MIME content type e.g. "audio/ogg" |
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43 - y: file extension e.g. "*.ogg" |
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44 - z: description for the user e.g. "Ogg Vorbis Audio" |
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45 If types is None, all file format are accepted |
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46 """ |
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47 FileUpload.__init__(self) |
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48 self.setName(name) |
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49 while DOM.getElementById(name): |
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50 name = "%s_" % name |
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51 self.setID(name) |
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52 self._id = name |
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53 self.max_size = max_size |
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54 self.types = types |
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55 |
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56 def getFileInfo(self): |
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57 from __pyjamas__ import JS |
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58 JS("var file = top.document.getElementById(this._id).files[0]; return [file.size, file.type]") |
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59 |
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60 def check(self): |
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61 if self.getFilename() == "": |
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62 return False |
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63 (size, filetype) = self.getFileInfo() |
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64 if self.types and filetype not in [x for (x, y, z) in self.types]: |
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65 types = [] |
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66 for type_ in ["- %s (%s)" % (z, y) for (x, y, z) in self.types]: |
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67 if type_ not in types: |
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68 types.append(type_) |
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69 Window.alert('This file type is not accepted.\nAccepted file types are:\n\n%s' % "\n".join(types)) |
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70 return False |
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71 if size > self.max_size * pow(2, 20): |
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72 Window.alert('This file is too big!\nMaximum file size: %d MB.' % self.max_size) |
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73 return False |
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74 return True |
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75 |
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76 |
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77 class FileUploadPanel(FormPanel): |
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78 |
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79 def __init__(self, action_url, input_id, max_size, texts=None, close_cb=None): |
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80 """Build a form panel to upload a file. |
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81 @param action_url: the form action URL |
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82 @param input_id: the input element name and id |
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83 @param max_size: maximum file size in MB |
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84 @param texts: a dict to ovewrite the default textual values |
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85 @param close_cb: the close button callback method |
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86 """ |
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87 FormPanel.__init__(self) |
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88 self.texts = {'ok_button': D_('Upload file'), |
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89 'cancel_button': D_('Cancel'), |
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90 'body': D_('Please select a file.'), |
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91 'submitting': D_('<strong>Submitting, please wait...</strong>'), |
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92 'errback': D_("Your file has been rejected..."), |
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93 'body_errback': D_('Please select another file.'), |
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94 'callback': D_("Your file has been accepted!")} |
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95 if isinstance(texts, dict): |
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96 self.texts.update(texts) |
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97 self.close_cb = close_cb |
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98 self.setEncoding(FormPanel.ENCODING_MULTIPART) |
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99 self.setMethod(FormPanel.METHOD_POST) |
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100 self.setAction(action_url) |
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101 self.vPanel = VerticalPanel() |
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102 self.message = HTML(self.texts['body']) |
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103 self.vPanel.add(self.message) |
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104 |
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105 hPanel = HorizontalPanel() |
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106 hPanel.setSpacing(5) |
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107 hPanel.setStyleName('marginAuto') |
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108 self.file_upload = FilterFileUpload(input_id, max_size) |
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109 self.vPanel.add(self.file_upload) |
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110 |
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111 self.upload_btn = Button(self.texts['ok_button'], getattr(self, "onSubmitBtnClick")) |
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112 hPanel.add(self.upload_btn) |
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113 hPanel.add(Button(self.texts['cancel_button'], getattr(self, "onCloseBtnClick"))) |
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114 |
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115 self.status = Label() |
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116 hPanel.add(self.status) |
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117 |
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118 self.vPanel.add(hPanel) |
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119 |
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120 self.add(self.vPanel) |
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121 self.addFormHandler(self) |
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122 |
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123 def setCloseCb(self, close_cb): |
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124 self.close_cb = close_cb |
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125 |
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126 def onCloseBtnClick(self): |
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127 if self.close_cb: |
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128 self.close_cb() |
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129 else: |
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130 log.warning("no close method defined") |
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131 |
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132 def onSubmitBtnClick(self): |
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133 if not self.file_upload.check(): |
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134 return |
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135 self.message.setHTML(self.texts['submitting']) |
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136 self.upload_btn.setEnabled(False) |
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137 self.submit() |
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138 |
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139 def onSubmit(self, event): |
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140 pass |
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141 |
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142 def onSubmitComplete(self, event): |
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143 result = event.getResults() |
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144 if result == C.UPLOAD_KO: |
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145 Window.alert(self.texts['errback']) |
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146 self.message.setHTML(self.texts['body_errback']) |
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147 self.upload_btn.setEnabled(True) |
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148 elif result == C.UPLOAD_OK: |
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149 Window.alert(self.texts['callback']) |
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150 self.close_cb() |
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151 else: |
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152 Window.alert(_('Submit error: %s' % result)) |
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153 self.upload_btn.setEnabled(True) |
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154 |
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155 |
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156 class AvatarUpload(FileUploadPanel): |
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157 def __init__(self): |
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158 texts = {'ok_button': 'Upload avatar', |
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159 'body': 'Please select an image to show as your avatar...<br>Your picture must be a square and will be resized to 64x64 pixels if necessary.', |
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160 'errback': "Can't open image... did you actually submit an image?", |
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161 'body_errback': 'Please select another image file.', |
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162 'callback': "Your new profile picture has been set!"} |
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163 FileUploadPanel.__init__(self, 'upload_avatar', 'avatar_path', 2, texts) |