Mercurial > traipse_dev
annotate plugins/cherrypy/_cpdefaults.py @ 78:57887ab0df51 ornery-dev
Finishing up Controls GUI. Update Manager's GUI will see refinement later on. Getting ready to add revision controls.
author | sirebral |
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date | Sat, 22 Aug 2009 05:29:56 -0500 |
parents | 4385a7d0efd1 |
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0
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1 """ |
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2 Copyright (c) 2004, CherryPy Team (team@cherrypy.org) |
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3 All rights reserved. |
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4 |
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5 Redistribution and use in source and binary forms, with or without modification, |
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6 are permitted provided that the following conditions are met: |
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7 |
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8 * Redistributions of source code must retain the above copyright notice, |
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9 this list of conditions and the following disclaimer. |
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10 * Redistributions in binary form must reproduce the above copyright notice, |
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11 this list of conditions and the following disclaimer in the documentation |
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12 and/or other materials provided with the distribution. |
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13 * Neither the name of the CherryPy Team nor the names of its contributors |
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14 may be used to endorse or promote products derived from this software |
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15 without specific prior written permission. |
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16 |
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17 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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18 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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19 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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20 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE |
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21 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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22 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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23 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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24 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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25 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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26 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 """ |
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28 |
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29 |
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30 """ |
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31 A module containing a few utility classes/functions used by CherryPy |
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32 """ |
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33 |
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34 import time, thread, os, cpg |
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35 import cPickle as pickle |
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36 |
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37 def _cpLogMessage(msg, context = '', severity = 0): |
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38 """ Default method for logging messages """ |
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39 |
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40 nowTuple = time.localtime(time.time()) |
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41 nowStr = '%04d/%02d/%02d %02d:%02d:%02d' % (nowTuple[:6]) |
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42 if severity == 0: |
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43 level = "INFO" |
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44 elif severity == 1: |
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45 level = "WARNING" |
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46 elif severity == 2: |
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47 level = "ERROR" |
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48 else: |
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49 lebel = "UNKNOWN" |
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50 try: |
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51 logToScreen = int(cpg.configOption.logToScreen) |
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52 except: |
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53 logToScreen = True |
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54 s = nowStr + ' ' + context + ' ' + level + ' ' + msg |
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55 if logToScreen: |
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56 print s |
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57 if cpg.configOption.logFile: |
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58 f = open(cpg.configOption.logFile, 'ab') |
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59 f.write(s + '\n') |
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60 f.close() |
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61 |
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62 def _cpOnError(): |
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63 """ Default _cpOnError method """ |
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64 |
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65 import traceback, StringIO |
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66 bodyFile = StringIO.StringIO() |
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67 traceback.print_exc(file = bodyFile) |
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68 cpg.response.body = [bodyFile.getvalue()] |
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69 cpg.response.headerMap['Content-Type'] = 'text/plain' |
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70 |
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71 def _cpSaveSessionData(sessionId, sessionData, expirationTime, |
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72 threadPool = None, sessionStorageType = None, |
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73 sessionStorageFileDir = None): |
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74 """ Save session data if needed """ |
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75 |
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76 if threadPool is None: |
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77 threadPool = cpg.configOption.threadPool |
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78 if sessionStorageType is None: |
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79 sessionStorageType = cpg.configOption.sessionStorageType |
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80 if sessionStorageFileDir is None: |
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81 sessionStorageFileDir = cpg.configOption.sessionStorageFileDir |
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82 |
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83 t = time.localtime(expirationTime) |
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84 if sessionStorageType == 'file': |
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85 fname=os.path.join(sessionStorageFileDir,sessionId) |
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86 if threadPool > 1: |
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87 cpg._sessionFileLock.acquire() |
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88 f = open(fname,"wb") |
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89 pickle.dump((sessionData, expirationTime), f) |
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90 f.close() |
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91 if threadPool > 1: |
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92 cpg._sessionFileLock.release() |
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93 |
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94 elif sessionStorageType=="ram": |
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95 # Update expiration time |
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96 cpg._sessionMap[sessionId] = (sessionData, expirationTime) |
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97 |
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98 """ TODO: implement cookie storage type |
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99 elif sessionStorageType == "cookie": |
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100 |
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101 TODO: set siteKey in _cpConfig |
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102 # Get site key from config file or compute it |
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103 try: cpg._SITE_KEY_ = configFile.get('server','siteKey') |
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104 except: |
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105 _SITE_KEY_ = '' |
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106 for i in range(30): |
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107 _SITE_KEY_ += random.choice(string.letters) |
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108 |
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109 # Update expiration time |
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110 sessionData = (sessionData, expirationTime) |
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111 dumpStr = pickle.dumps(_sessionData) |
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112 try: dumpStr = zlib.compress(dumpStr) |
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113 except: pass # zlib is not available in all python distros |
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114 dumpStr = binascii.hexlify(dumpStr) # Need to hexlify it because it will be stored in a cookie |
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115 cpg.response.simpleCookie['CSession'] = dumpStr |
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116 cpg.response.simpleCookie['CSession-sig'] = md5.md5(dumpStr + cpg.configOption.siteKey).hexdigest() |
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117 cpg.response.simpleCookie['CSession']['path'] = '/' |
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118 cpg.response.simpleCookie['CSession']['max-age'] = sessionTimeout * 60 |
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119 cpg.response.simpleCookie['CSession-sig']['path'] = '/' |
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120 cpg.response.simpleCookie['CSession-sig']['max-age'] = sessionTimeout * 60 |
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121 """ |
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122 |
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123 def _cpLoadSessionData(sessionId, threadPool = None, sessionStorageType = None, |
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124 sessionStorageFileDir = None): |
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125 """ Return the session data for a given sessionId. |
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126 The _expirationTime will be checked by the caller of this function |
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127 """ |
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128 |
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129 if threadPool is None: |
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130 threadPool = cpg.configOption.threadPool |
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131 if sessionStorageType is None: |
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132 sessionStorageType = cpg.configOption.sessionStorageType |
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133 if sessionStorageFileDir is None: |
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134 sessionStorageFileDir = cpg.configOption.sessionStorageFileDir |
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135 |
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136 if sessionStorageType == "ram": |
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137 if cpg._sessionMap.has_key(sessionId): |
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138 return cpg._sessionMap[sessionId] |
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139 else: return None |
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140 |
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141 elif sessionStorageType == "file": |
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142 fname = os.path.join(sessionStorageFileDir, sessionId) |
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143 if os.path.exists(fname): |
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144 if threadPool > 1: |
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145 cpg._sessionFileLock.acquire() |
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146 f = open(fname, "rb") |
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147 sessionData = pickle.load(f) |
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148 f.close() |
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149 if threadPool > 1: |
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150 cpg._sessionFileLock.release() |
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151 return sessionData |
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152 else: return None |
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153 |
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154 """ TODO: implement cookie storage type |
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155 elif _sessionStorageType == "cookie": |
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156 if request.simpleCookie.has_key('CSession') and request.simpleCookie.has_key('CSession-sig'): |
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157 data = request.simpleCookie['CSession'].value |
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158 sig = request.simpleCookie['CSession-sig'].value |
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159 if md5.md5(data + cpg.configOption.siteKey).hexdigest() == sig: |
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160 try: |
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161 dumpStr = binascii.unhexlify(data) |
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162 try: dumpStr = zlib.decompress(dumpStr) |
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163 except: pass # zlib is not available in all python distros |
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164 dumpStr = pickle.loads(dumpStr) |
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165 return dumpStr |
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166 except: pass |
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167 return None |
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168 """ |
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169 |
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170 def _cpCleanUpOldSessions(threadPool = None, sessionStorageType = None, |
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171 sessionStorageFileDir = None): |
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172 """ Clean up old sessions """ |
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173 |
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174 if threadPool is None: |
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175 threadPool = cpg.configOption.threadPool |
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176 if sessionStorageType is None: |
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177 sessionStorageType = cpg.configOption.sessionStorageType |
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178 if sessionStorageFileDir is None: |
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179 sessionStorageFileDir = cpg.configOption.sessionStorageFileDir |
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180 |
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181 # Clean up old session data |
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182 now = time.time() |
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183 if sessionStorageType == "ram": |
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184 sessionIdToDeleteList = [] |
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185 for sessionId, (dummy, expirationTime) in cpg._sessionMap.items(): |
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186 if expirationTime < now: |
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187 sessionIdToDeleteList.append(sessionId) |
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188 for sessionId in sessionIdToDeleteList: |
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189 del cpg._sessionMap[sessionId] |
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190 |
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191 elif sessionStorageType=="file": |
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192 # This process is very expensive because we go through all files, parse them and then delete them if the session is expired |
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193 # One optimization would be to just store a list of (sessionId, expirationTime) in *one* file |
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194 sessionFileList = os.listdir(sessionStorageFileDir) |
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195 for sessionId in sessionFileList: |
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196 try: |
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197 dummy, expirationTime = _cpLoadSessionData(sessionId) |
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198 if expirationTime < now: |
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199 os.remove(os.path.join(sessionStorageFileDir, sessionId)) |
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200 except: |
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201 pass |
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202 |
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203 elif sessionStorageType == "cookie": |
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204 # Nothing to do in this case: the session data is stored on the client |
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205 pass |
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206 |
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207 _cpFilterList = [] |