root / image_creator / dialog_util.py @ 12c97404
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1 | 121f3bc0 | Nikos Skalkotos | # -*- coding: utf-8 -*-
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2 | 121f3bc0 | Nikos Skalkotos | #
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3 | 023e1217 | Nikos Skalkotos | # Copyright 2012 GRNET S.A. All rights reserved.
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4 | 023e1217 | Nikos Skalkotos | #
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5 | 023e1217 | Nikos Skalkotos | # Redistribution and use in source and binary forms, with or
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6 | 023e1217 | Nikos Skalkotos | # without modification, are permitted provided that the following
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7 | 023e1217 | Nikos Skalkotos | # conditions are met:
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8 | 023e1217 | Nikos Skalkotos | #
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9 | 023e1217 | Nikos Skalkotos | # 1. Redistributions of source code must retain the above
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10 | 023e1217 | Nikos Skalkotos | # copyright notice, this list of conditions and the following
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11 | 023e1217 | Nikos Skalkotos | # disclaimer.
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12 | 023e1217 | Nikos Skalkotos | #
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13 | 023e1217 | Nikos Skalkotos | # 2. Redistributions in binary form must reproduce the above
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14 | 023e1217 | Nikos Skalkotos | # copyright notice, this list of conditions and the following
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15 | 023e1217 | Nikos Skalkotos | # disclaimer in the documentation and/or other materials
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16 | 023e1217 | Nikos Skalkotos | # provided with the distribution.
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17 | 023e1217 | Nikos Skalkotos | #
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18 | 023e1217 | Nikos Skalkotos | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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19 | 023e1217 | Nikos Skalkotos | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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20 | 023e1217 | Nikos Skalkotos | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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21 | 023e1217 | Nikos Skalkotos | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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22 | 023e1217 | Nikos Skalkotos | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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23 | 023e1217 | Nikos Skalkotos | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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24 | 023e1217 | Nikos Skalkotos | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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25 | 023e1217 | Nikos Skalkotos | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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26 | 023e1217 | Nikos Skalkotos | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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27 | 023e1217 | Nikos Skalkotos | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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28 | 023e1217 | Nikos Skalkotos | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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29 | 023e1217 | Nikos Skalkotos | # POSSIBILITY OF SUCH DAMAGE.
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30 | 023e1217 | Nikos Skalkotos | #
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31 | 023e1217 | Nikos Skalkotos | # The views and conclusions contained in the software and
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32 | 023e1217 | Nikos Skalkotos | # documentation are those of the authors and should not be
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33 | 023e1217 | Nikos Skalkotos | # interpreted as representing official policies, either expressed
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34 | 023e1217 | Nikos Skalkotos | # or implied, of GRNET S.A.
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35 | 023e1217 | Nikos Skalkotos | |
36 | 121f3bc0 | Nikos Skalkotos | """Module providing useful functions for the dialog-based version of
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37 | 121f3bc0 | Nikos Skalkotos | snf-image-creator.
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38 | 121f3bc0 | Nikos Skalkotos | """
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39 | 121f3bc0 | Nikos Skalkotos | |
40 | 023e1217 | Nikos Skalkotos | import os |
41 | 49c07ce3 | Nikos Skalkotos | import re |
42 | 8e58e699 | Nikos Skalkotos | import json |
43 | 0a116b9d | Nikos Skalkotos | from image_creator.output.dialog import GaugeOutput |
44 | 0a116b9d | Nikos Skalkotos | from image_creator.util import MD5 |
45 | 49c07ce3 | Nikos Skalkotos | from image_creator.kamaki_wrapper import Kamaki |
46 | 023e1217 | Nikos Skalkotos | |
47 | 023e1217 | Nikos Skalkotos | SMALL_WIDTH = 60
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48 | 023e1217 | Nikos Skalkotos | WIDTH = 70
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49 | 023e1217 | Nikos Skalkotos | |
50 | 023e1217 | Nikos Skalkotos | |
51 | 023e1217 | Nikos Skalkotos | def update_background_title(session): |
52 | 88f83027 | Nikos Skalkotos | """Update the backgroud title of the dialog page"""
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53 | 023e1217 | Nikos Skalkotos | d = session['dialog']
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54 | b044e29e | Nikos Skalkotos | disk = session['disk']
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55 | f5174d2c | Nikos Skalkotos | image = session['image']
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56 | 023e1217 | Nikos Skalkotos | |
57 | 023e1217 | Nikos Skalkotos | MB = 2 ** 20 |
58 | 023e1217 | Nikos Skalkotos | |
59 | f5174d2c | Nikos Skalkotos | size = (image.size + MB - 1) // MB
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60 | 023e1217 | Nikos Skalkotos | shrinked = 'shrinked' in session and session['shrinked'] |
61 | 023e1217 | Nikos Skalkotos | postfix = " (shrinked)" if shrinked else '' |
62 | 023e1217 | Nikos Skalkotos | |
63 | b044e29e | Nikos Skalkotos | title = "OS: %s, Distro: %s, Size: %dMB%s, Source: %s" % \
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64 | f5174d2c | Nikos Skalkotos | (image.ostype, image.distro, size, postfix, |
65 | b044e29e | Nikos Skalkotos | os.path.abspath(disk.source)) |
66 | 023e1217 | Nikos Skalkotos | |
67 | 023e1217 | Nikos Skalkotos | d.setBackgroundTitle(title) |
68 | 023e1217 | Nikos Skalkotos | |
69 | 023e1217 | Nikos Skalkotos | |
70 | 023e1217 | Nikos Skalkotos | def confirm_exit(d, msg=''): |
71 | 88f83027 | Nikos Skalkotos | """Ask the user to confirm when exiting the program"""
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72 | 023e1217 | Nikos Skalkotos | return not d.yesno("%s Do you want to exit?" % msg, width=SMALL_WIDTH) |
73 | 023e1217 | Nikos Skalkotos | |
74 | 023e1217 | Nikos Skalkotos | |
75 | 023e1217 | Nikos Skalkotos | def confirm_reset(d): |
76 | 88f83027 | Nikos Skalkotos | """Ask the user to confirm a reset action"""
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77 | 023e1217 | Nikos Skalkotos | return not d.yesno("Are you sure you want to reset everything?", |
78 | 023e1217 | Nikos Skalkotos | width=SMALL_WIDTH, defaultno=1)
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79 | 023e1217 | Nikos Skalkotos | |
80 | 023e1217 | Nikos Skalkotos | |
81 | 023e1217 | Nikos Skalkotos | class Reset(Exception): |
82 | 88f83027 | Nikos Skalkotos | """Exception used to reset the program"""
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83 | 023e1217 | Nikos Skalkotos | pass
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84 | 023e1217 | Nikos Skalkotos | |
85 | 023e1217 | Nikos Skalkotos | |
86 | 0a116b9d | Nikos Skalkotos | def extract_metadata_string(session): |
87 | 88f83027 | Nikos Skalkotos | """Convert image metadata to text"""
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88 | 8e58e699 | Nikos Skalkotos | metadata = {} |
89 | 8e58e699 | Nikos Skalkotos | metadata.update(session['metadata'])
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90 | 0a116b9d | Nikos Skalkotos | if 'task_metadata' in session: |
91 | 8e58e699 | Nikos Skalkotos | for key in session['task_metadata']: |
92 | 8e58e699 | Nikos Skalkotos | metadata[key] = 'yes'
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93 | 0a116b9d | Nikos Skalkotos | |
94 | 8e58e699 | Nikos Skalkotos | return unicode(json.dumps({'properties': metadata, |
95 | 8e58e699 | Nikos Skalkotos | 'disk-format': 'diskdump'}, ensure_ascii=False)) |
96 | 0a116b9d | Nikos Skalkotos | |
97 | 0a116b9d | Nikos Skalkotos | |
98 | 023e1217 | Nikos Skalkotos | def extract_image(session): |
99 | 88f83027 | Nikos Skalkotos | """Dump the image to a local file"""
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100 | 023e1217 | Nikos Skalkotos | d = session['dialog']
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101 | 023e1217 | Nikos Skalkotos | dir = os.getcwd() |
102 | 023e1217 | Nikos Skalkotos | while 1: |
103 | 023e1217 | Nikos Skalkotos | if dir and dir[-1] != os.sep: |
104 | 023e1217 | Nikos Skalkotos | dir = dir + os.sep
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105 | 023e1217 | Nikos Skalkotos | |
106 | 023e1217 | Nikos Skalkotos | (code, path) = d.fselect(dir, 10, 50, title="Save image as...") |
107 | 023e1217 | Nikos Skalkotos | if code in (d.DIALOG_CANCEL, d.DIALOG_ESC): |
108 | 023e1217 | Nikos Skalkotos | return False |
109 | 023e1217 | Nikos Skalkotos | |
110 | 023e1217 | Nikos Skalkotos | if os.path.isdir(path):
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111 | 023e1217 | Nikos Skalkotos | dir = path |
112 | 023e1217 | Nikos Skalkotos | continue
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113 | 023e1217 | Nikos Skalkotos | |
114 | 023e1217 | Nikos Skalkotos | if os.path.isdir("%s.meta" % path): |
115 | 023e1217 | Nikos Skalkotos | d.msgbox("Can't overwrite directory `%s.meta'" % path,
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116 | 023e1217 | Nikos Skalkotos | width=SMALL_WIDTH) |
117 | 023e1217 | Nikos Skalkotos | continue
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118 | 023e1217 | Nikos Skalkotos | |
119 | 023e1217 | Nikos Skalkotos | if os.path.isdir("%s.md5sum" % path): |
120 | 023e1217 | Nikos Skalkotos | d.msgbox("Can't overwrite directory `%s.md5sum'" % path,
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121 | 023e1217 | Nikos Skalkotos | width=SMALL_WIDTH) |
122 | 023e1217 | Nikos Skalkotos | continue
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123 | 023e1217 | Nikos Skalkotos | |
124 | 023e1217 | Nikos Skalkotos | basedir = os.path.dirname(path) |
125 | 023e1217 | Nikos Skalkotos | name = os.path.basename(path) |
126 | 023e1217 | Nikos Skalkotos | if not os.path.exists(basedir): |
127 | 023e1217 | Nikos Skalkotos | d.msgbox("Directory `%s' does not exist" % basedir,
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128 | 023e1217 | Nikos Skalkotos | width=SMALL_WIDTH) |
129 | 023e1217 | Nikos Skalkotos | continue
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130 | 023e1217 | Nikos Skalkotos | |
131 | 023e1217 | Nikos Skalkotos | dir = basedir |
132 | 023e1217 | Nikos Skalkotos | if len(name) == 0: |
133 | 023e1217 | Nikos Skalkotos | continue
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134 | 023e1217 | Nikos Skalkotos | |
135 | 023e1217 | Nikos Skalkotos | files = ["%s%s" % (path, ext) for ext in ('', '.meta', '.md5sum')] |
136 | 023e1217 | Nikos Skalkotos | overwrite = filter(os.path.exists, files)
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137 | 023e1217 | Nikos Skalkotos | |
138 | 023e1217 | Nikos Skalkotos | if len(overwrite) > 0: |
139 | 023e1217 | Nikos Skalkotos | if d.yesno("The following file(s) exist:\n" |
140 | 023e1217 | Nikos Skalkotos | "%s\nDo you want to overwrite them?" %
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141 | 023e1217 | Nikos Skalkotos | "\n".join(overwrite), width=SMALL_WIDTH):
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142 | 023e1217 | Nikos Skalkotos | continue
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143 | 023e1217 | Nikos Skalkotos | |
144 | 023e1217 | Nikos Skalkotos | gauge = GaugeOutput(d, "Image Extraction", "Extracting image...") |
145 | 023e1217 | Nikos Skalkotos | try:
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146 | f5174d2c | Nikos Skalkotos | image = session['image']
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147 | f5174d2c | Nikos Skalkotos | out = image.out |
148 | 023e1217 | Nikos Skalkotos | out.add(gauge) |
149 | 023e1217 | Nikos Skalkotos | try:
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150 | 023e1217 | Nikos Skalkotos | if "checksum" not in session: |
151 | 023e1217 | Nikos Skalkotos | md5 = MD5(out) |
152 | f5174d2c | Nikos Skalkotos | session['checksum'] = md5.compute(image.device, image.size)
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153 | 023e1217 | Nikos Skalkotos | |
154 | 023e1217 | Nikos Skalkotos | # Extract image file
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155 | f5174d2c | Nikos Skalkotos | image.dump(path) |
156 | 023e1217 | Nikos Skalkotos | |
157 | 023e1217 | Nikos Skalkotos | # Extract metadata file
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158 | 3afe6b44 | Nikos Skalkotos | out.output("Extracting metadata file ...")
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159 | 023e1217 | Nikos Skalkotos | with open('%s.meta' % path, 'w') as f: |
160 | 023e1217 | Nikos Skalkotos | f.write(extract_metadata_string(session)) |
161 | 023e1217 | Nikos Skalkotos | out.success('done')
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162 | 023e1217 | Nikos Skalkotos | |
163 | 023e1217 | Nikos Skalkotos | # Extract md5sum file
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164 | 3afe6b44 | Nikos Skalkotos | out.output("Extracting md5sum file ...")
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165 | 023e1217 | Nikos Skalkotos | md5str = "%s %s\n" % (session['checksum'], name) |
166 | 023e1217 | Nikos Skalkotos | with open('%s.md5sum' % path, 'w') as f: |
167 | 023e1217 | Nikos Skalkotos | f.write(md5str) |
168 | 023e1217 | Nikos Skalkotos | out.success("done")
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169 | 023e1217 | Nikos Skalkotos | finally:
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170 | 023e1217 | Nikos Skalkotos | out.remove(gauge) |
171 | 023e1217 | Nikos Skalkotos | finally:
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172 | 023e1217 | Nikos Skalkotos | gauge.cleanup() |
173 | 023e1217 | Nikos Skalkotos | d.msgbox("Image file `%s' was successfully extracted!" % path,
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174 | 023e1217 | Nikos Skalkotos | width=SMALL_WIDTH) |
175 | 023e1217 | Nikos Skalkotos | break
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176 | 023e1217 | Nikos Skalkotos | |
177 | 023e1217 | Nikos Skalkotos | return True |
178 | 023e1217 | Nikos Skalkotos | |
179 | 49c07ce3 | Nikos Skalkotos | |
180 | 49c07ce3 | Nikos Skalkotos | def _check_cloud(session, name, description, url, token): |
181 | 49c07ce3 | Nikos Skalkotos | """Checks if the provided info for a cloud are valid"""
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182 | 49c07ce3 | Nikos Skalkotos | d = session['dialog']
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183 | 49c07ce3 | Nikos Skalkotos | regexp = re.compile('^[a-zA-Z0-9_]+$')
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184 | 49c07ce3 | Nikos Skalkotos | |
185 | 49c07ce3 | Nikos Skalkotos | if not re.match(regexp, name): |
186 | 49c07ce3 | Nikos Skalkotos | d.msgbox("Allowed characters for name: [a-zA-Z0-9_]", width=WIDTH)
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187 | 49c07ce3 | Nikos Skalkotos | return False |
188 | 49c07ce3 | Nikos Skalkotos | |
189 | 49c07ce3 | Nikos Skalkotos | if len(url) == 0: |
190 | 49c07ce3 | Nikos Skalkotos | d.msgbox("Url cannot be empty!", width=WIDTH)
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191 | 49c07ce3 | Nikos Skalkotos | return False |
192 | 49c07ce3 | Nikos Skalkotos | |
193 | 49c07ce3 | Nikos Skalkotos | if len(token) == 0: |
194 | 49c07ce3 | Nikos Skalkotos | d.msgbox("Token cannot be empty!", width=WIDTH)
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195 | 49c07ce3 | Nikos Skalkotos | return False |
196 | 49c07ce3 | Nikos Skalkotos | |
197 | 49c07ce3 | Nikos Skalkotos | if Kamaki.create_account(url, token) is None: |
198 | 49c07ce3 | Nikos Skalkotos | d.msgbox("The cloud info you provided is not valid. Please check the "
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199 | 49c07ce3 | Nikos Skalkotos | "Authentication URL and the token values again!", width=WIDTH)
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200 | 49c07ce3 | Nikos Skalkotos | return False |
201 | 49c07ce3 | Nikos Skalkotos | |
202 | 49c07ce3 | Nikos Skalkotos | return True |
203 | 49c07ce3 | Nikos Skalkotos | |
204 | 49c07ce3 | Nikos Skalkotos | |
205 | 49c07ce3 | Nikos Skalkotos | def add_cloud(session): |
206 | 49c07ce3 | Nikos Skalkotos | """Add a new cloud account"""
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207 | 49c07ce3 | Nikos Skalkotos | |
208 | 49c07ce3 | Nikos Skalkotos | d = session['dialog']
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209 | 49c07ce3 | Nikos Skalkotos | |
210 | 49c07ce3 | Nikos Skalkotos | name = ""
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211 | 49c07ce3 | Nikos Skalkotos | description = ""
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212 | 49c07ce3 | Nikos Skalkotos | url = ""
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213 | 49c07ce3 | Nikos Skalkotos | token = ""
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214 | 49c07ce3 | Nikos Skalkotos | |
215 | 49c07ce3 | Nikos Skalkotos | while 1: |
216 | 49c07ce3 | Nikos Skalkotos | fields = [ |
217 | 49c07ce3 | Nikos Skalkotos | ("Name:", name, 60), |
218 | 49c07ce3 | Nikos Skalkotos | ("Description (optional): ", description, 80), |
219 | 49c07ce3 | Nikos Skalkotos | ("Authentication URL: ", url, 200), |
220 | 49c07ce3 | Nikos Skalkotos | ("Token:", token, 100)] |
221 | 49c07ce3 | Nikos Skalkotos | |
222 | 49c07ce3 | Nikos Skalkotos | (code, output) = d.form("Add a new cloud account:", height=13, |
223 | 49c07ce3 | Nikos Skalkotos | width=WIDTH, form_height=4, fields=fields)
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224 | 49c07ce3 | Nikos Skalkotos | |
225 | 49c07ce3 | Nikos Skalkotos | if code in (d.DIALOG_CANCEL, d.DIALOG_ESC): |
226 | 49c07ce3 | Nikos Skalkotos | return False |
227 | 49c07ce3 | Nikos Skalkotos | |
228 | 49c07ce3 | Nikos Skalkotos | name, description, url, token = output |
229 | 49c07ce3 | Nikos Skalkotos | |
230 | 49c07ce3 | Nikos Skalkotos | name = name.strip() |
231 | 49c07ce3 | Nikos Skalkotos | description = description.strip() |
232 | 49c07ce3 | Nikos Skalkotos | url = url.strip() |
233 | 49c07ce3 | Nikos Skalkotos | token = token.strip() |
234 | 49c07ce3 | Nikos Skalkotos | |
235 | 49c07ce3 | Nikos Skalkotos | if _check_cloud(session, name, description, url, token):
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236 | 49c07ce3 | Nikos Skalkotos | if name in Kamaki.get_clouds().keys(): |
237 | 49c07ce3 | Nikos Skalkotos | d.msgbox("A cloud with name `%s' already exists. If you want "
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238 | 49c07ce3 | Nikos Skalkotos | "to edit the existing cloud account, use the edit "
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239 | 49c07ce3 | Nikos Skalkotos | "menu." % name, width=WIDTH)
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240 | 49c07ce3 | Nikos Skalkotos | else:
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241 | 49c07ce3 | Nikos Skalkotos | Kamaki.save_cloud(name, url, token, description) |
242 | 49c07ce3 | Nikos Skalkotos | break
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243 | 49c07ce3 | Nikos Skalkotos | |
244 | 49c07ce3 | Nikos Skalkotos | continue
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245 | 49c07ce3 | Nikos Skalkotos | |
246 | 49c07ce3 | Nikos Skalkotos | return True |
247 | 49c07ce3 | Nikos Skalkotos | |
248 | 49c07ce3 | Nikos Skalkotos | |
249 | 49c07ce3 | Nikos Skalkotos | def edit_cloud(session, name): |
250 | 49c07ce3 | Nikos Skalkotos | """Edit a cloud account"""
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251 | 49c07ce3 | Nikos Skalkotos | |
252 | 49c07ce3 | Nikos Skalkotos | info = Kamaki.get_cloud_by_name(name) |
253 | 49c07ce3 | Nikos Skalkotos | |
254 | 49c07ce3 | Nikos Skalkotos | assert info, "Cloud: `%s' does not exist" % name |
255 | 49c07ce3 | Nikos Skalkotos | |
256 | 49c07ce3 | Nikos Skalkotos | description = info['description'] if 'description' in info else "" |
257 | 5a380da9 | Nikos Skalkotos | url = info['url'] if 'url' in info else "" |
258 | 5a380da9 | Nikos Skalkotos | token = info['token'] if 'token' in info else "" |
259 | 49c07ce3 | Nikos Skalkotos | |
260 | 49c07ce3 | Nikos Skalkotos | d = session['dialog']
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261 | 49c07ce3 | Nikos Skalkotos | |
262 | 49c07ce3 | Nikos Skalkotos | while 1: |
263 | 49c07ce3 | Nikos Skalkotos | fields = [ |
264 | 49c07ce3 | Nikos Skalkotos | ("Description (optional): ", description, 80), |
265 | 49c07ce3 | Nikos Skalkotos | ("Authentication URL: ", url, 200), |
266 | 49c07ce3 | Nikos Skalkotos | ("Token:", token, 100)] |
267 | 49c07ce3 | Nikos Skalkotos | |
268 | 49c07ce3 | Nikos Skalkotos | (code, output) = d.form("Edit cloud account: `%s'" % name, height=13, |
269 | 49c07ce3 | Nikos Skalkotos | width=WIDTH, form_height=3, fields=fields)
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270 | 49c07ce3 | Nikos Skalkotos | |
271 | 49c07ce3 | Nikos Skalkotos | if code in (d.DIALOG_CANCEL, d.DIALOG_ESC): |
272 | 49c07ce3 | Nikos Skalkotos | return False |
273 | 49c07ce3 | Nikos Skalkotos | |
274 | 49c07ce3 | Nikos Skalkotos | description, url, token = output |
275 | 49c07ce3 | Nikos Skalkotos | |
276 | 49c07ce3 | Nikos Skalkotos | description = description.strip() |
277 | 49c07ce3 | Nikos Skalkotos | url = url.strip() |
278 | 49c07ce3 | Nikos Skalkotos | token = token.strip() |
279 | 49c07ce3 | Nikos Skalkotos | |
280 | 49c07ce3 | Nikos Skalkotos | if _check_cloud(session, name, description, url, token):
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281 | 49c07ce3 | Nikos Skalkotos | Kamaki.save_cloud(name, url, token, description) |
282 | 49c07ce3 | Nikos Skalkotos | break
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283 | 49c07ce3 | Nikos Skalkotos | |
284 | 49c07ce3 | Nikos Skalkotos | continue
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285 | 49c07ce3 | Nikos Skalkotos | |
286 | 49c07ce3 | Nikos Skalkotos | return True |
287 | 49c07ce3 | Nikos Skalkotos | |
288 | 023e1217 | Nikos Skalkotos | # vim: set sta sts=4 shiftwidth=4 sw=4 et ai : |