Mercurial > traipse_dev
annotate orpg/networking/meta_server_lib.py @ 100:7ed4979cc1cf beta
Traipse Beta 'OpenRPG' {090925-00}
Traipse is a distribution of OpenRPG that is designed to be easy to setup and go. Traipse also makes it easy for developers to work on code without fear of sacrifice. 'Ornery-Orc' continues the trend of 'Grumpy' and adds fixes to the code. 'Ornery-Orc''s main goal is to offer more advanced features and enhance the productivity of the user.
Update Summary:
090925-00:
Adds menu changes to draw attention to important updates, errors, or other events. (image info coming soon)
Traipse URL is not included in the repos tab and is set as default.
Fixes Copy for Windows and Linux (finally!!) users.
Fixes incomplete update to Grid and List nodes.
Fixes incomplete update to Chat Commands.
Fixes problems with Remote Image Upload.
Fixes Drop and Drag of Minis to Map.
CherryPy can now use any image in the webfiles/ folder and sub-folders.
CherryPy can now Drop and Drag Minis to the Map.
Minor changes to Update Manager's GUI.
Expert recommendation warning added to Revision Update.
Step down compatibility with open_rpg & component added to orpgCore.
Fixes CherryPit misspelling.
Makes Traipse Suite 'Attention' item portable, and executes it on 'Critical' debug notices.
Adds incomplete Shift + Enter to Text Entry, currently creates a 'Critical' warning.
New default Lobby Map, designed for Traipse. Feel free to change it.
Updates to Server GUI:
* Admin can Ban from Backend.
* Admin can Modify Ban List and Un Ban users.
* Server GUI finds your Lobby Name
* New users default as Lurker unless a Role is set
Cleaner TraipseSuiteAttention portability and clean up in Main.
Die Roll Commands addition from Core code allowing Math Ordering with ()'s
New About Dialog. A more uniform About Dialog.
Corrects image loading of duplicate images.
| author | sirebral |
|---|---|
| date | Fri, 25 Sep 2009 20:46:02 -0500 |
| parents | 68c7bd272f27 |
| children | 9314d63c0941 dcf4fbe09b70 |
| rev | line source |
|---|---|
|
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1 #!/usr/bin/python2.1 |
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2 # Copyright (C) 2000-2001 The OpenRPG Project |
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3 # |
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4 # openrpg-dev@lists.sourceforge.net |
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5 # |
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6 # This program is free software; you can redistribute it and/or modify |
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7 # it under the terms of the GNU General Public License as published by |
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8 # the Free Software Foundation; either version 2 of the License, or |
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9 # (at your option) any later version. |
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10 # |
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11 # This program is distributed in the hope that it will be useful, |
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 # GNU General Public License for more details. |
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15 # |
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16 # You should have received a copy of the GNU General Public License |
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17 # along with this program; if not, write to the Free Software |
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18 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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19 # -- |
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20 # |
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21 # File: meta_server_lib.py |
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22 # Author: Chris Davis |
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23 # Maintainer: |
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24 # Version: |
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25 # $Id: meta_server_lib.py,v 1.40 2007/04/04 01:18:42 digitalxero Exp $ |
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26 # |
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27 # Description: A collection of functions to communicate with the meta server. |
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28 # |
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29 |
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30 |
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31 #added debug flag for meta messages to cut console server spam --Snowdog |
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32 META_DEBUG = 0 |
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33 |
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34 __version__ = "$Id: meta_server_lib.py,v 1.40 2007/04/04 01:18:42 digitalxero Exp $" |
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35 |
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36 from orpg.orpg_version import PROTOCOL_VERSION |
| 100 | 37 from orpg.orpgCore import component |
| 38 from orpg.tools.validate import validate | |
| 39 from orpg.dirpath import dir_struct | |
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40 import urllib |
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41 import orpg.minidom |
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42 from threading import * |
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43 import time |
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44 import sys |
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45 import random |
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46 import traceback |
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47 import re |
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48 |
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49 metacache_lock = RLock() |
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50 |
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51 def get_server_dom(data=None,path=None): |
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52 # post data at server and get the resulting DOM |
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53 |
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54 if path == None: |
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55 # get meta server URI |
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56 path = getMetaServerBaseURL() |
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57 |
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58 # POST the data |
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59 if META_DEBUG: |
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60 print |
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61 print "Sending the following POST info to Meta at " + path + ":" |
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62 print "==========================================" |
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63 print data |
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64 print |
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65 file = urllib.urlopen(path, data) |
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66 data = file.read() |
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67 file.close() |
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68 |
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69 # Remove any leading or trailing data. This can happen on some satellite connections |
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70 p = re.compile('(<servers>.*?</servers>)',re.DOTALL|re.IGNORECASE) |
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71 mo = p.search(data) |
| 100 | 72 if mo: data = mo.group(0) |
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73 |
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74 if META_DEBUG: |
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75 print |
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76 print "Got this string from the Meta at " + path + ":" |
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77 print "===============================================" |
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78 print data |
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79 print |
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80 # build dom |
| 100 | 81 xml = component.get('xml') |
| 66 | 82 xml_dom = xml.parseXml(data) |
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83 xml_dom = xml_dom._get_documentElement() |
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84 return xml_dom |
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85 |
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86 def post_server_data( name, realHostName=None): |
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87 if realHostName: |
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88 data = urllib.urlencode( {"server_data[name]":name, |
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89 "server_data[version]":PROTOCOL_VERSION, |
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90 "act":"new", |
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91 "REMOTE_ADDR": realHostName } ) |
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92 |
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93 else: |
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94 #print "Letting meta server decide the hostname to list..." |
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95 data = urllib.urlencode( {"server_data[name]":name, |
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96 "server_data[version]":PROTOCOL_VERSION, |
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97 "act":"new"} ) |
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98 |
| 100 | 99 #xml_dom = get_server_dom( data , "http://openrpg.sf.net/openrpg_servers.php")#Sourceforge still? |
| 100 path = component.get('settings').get_setting('MetaServerBaseURL') #getMetaServerBaseURL() | |
| 101 xml_dom = get_server_dom(data, path) | |
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102 ret_val = int( xml_dom.getAttribute( "id" ) ) |
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103 return ret_val |
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104 |
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105 def post_failed_connection(id,meta=None,address=None,port=None): |
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106 # For now, turning this off. This needs to be re-vamped for |
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107 # handling multiple Metas. |
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108 return 0 |
| 100 | 109 #data = urllib.urlencode({"id":id,"act":"failed"}); |
| 110 #xml_dom = get_server_dom(data) | |
| 111 #ret_val = int(xml_dom.getAttribute("return")) | |
| 112 #return ret_val | |
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113 |
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114 def remove_server(id): |
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115 data = urllib.urlencode({"id":id,"act":"del"}); |
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116 xml_dom = get_server_dom(data) |
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117 ret_val = int(xml_dom.getAttribute("return")) |
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118 return ret_val |
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119 |
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120 |
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121 def byStartAttribute(first,second): |
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122 # This function is used to easily sort a list of nodes |
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123 # by their start time |
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124 |
| 100 | 125 if first.hasAttribute("start"): first_start = int(first.getAttribute("start")) |
| 126 else: first_start = 0 | |
|
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127 |
| 100 | 128 if second.hasAttribute("start"): second_start = int(second.getAttribute("start")) |
| 129 else: second_start = 0 | |
|
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130 |
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131 # Return the result of the cmp function on the two strings |
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132 return cmp(first_start,second_start) |
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133 |
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134 def byNameAttribute(first,second): |
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135 # This function is used to easily sort a list of nodes |
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136 # by their name attribute |
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137 |
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138 # Ensure there is something to sort with for each |
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139 |
| 100 | 140 if first.hasAttribute("name"): first_name = str(first.getAttribute("name")).lower() |
| 141 else: first_name = "" | |
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142 |
| 100 | 143 if second.hasAttribute("name"): second_name = str(second.getAttribute("name")).lower() |
| 144 else: second_name = "" | |
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145 |
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146 # Return the result of the cmp function on the two strings |
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147 return cmp(first_name,second_name) |
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148 |
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149 |
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150 def get_server_list(versions = None,sort_by="start"): |
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151 data = urllib.urlencode({"version":PROTOCOL_VERSION,"ports":"%"}) |
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152 all_metas = getMetaServers(versions,1) # get the list of metas |
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153 base_meta = getMetaServerBaseURL() |
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154 |
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155 #all_metas.reverse() # The last one checked will take precedence, so reverse the order |
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156 # so that the top one on the actual list is checked last |
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157 |
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158 return_hash = {} # this will end up with an amalgamated list of servers |
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159 |
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160 for meta in all_metas: # check all of the metas |
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161 |
| 100 | 162 #get the server's xml from the current meta |
|
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163 bad_meta = 0 |
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164 #print "Getting server list from " + meta + "..." |
| 100 | 165 try: xml_dom = get_server_dom(data=data,path=meta) |
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166 except: |
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167 #print "Trouble getting servers from " + meta + "..." |
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168 bad_meta = 1 |
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169 |
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170 if bad_meta: |
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171 continue |
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172 |
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173 if base_meta == meta: |
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174 #print "This is our base meta: " + meta |
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175 updateMetaCache(xml_dom) |
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176 |
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177 node_list = xml_dom.getElementsByTagName('server') |
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178 |
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179 if len(node_list): # if there are entries in the node list |
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180 # otherwise, just loop to next meta |
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181 |
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182 # for each node found, we're going to check the nodes from prior |
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183 # metas in the list. If a match is found, then use the new values. |
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184 for n in node_list: |
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185 |
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186 # set them from current node |
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187 |
| 100 | 188 if not n.hasAttribute('name'): n.setAttribute('name','NO_NAME_GIVEN') |
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189 name = n.getAttribute('name') |
| 100 | 190 if not n.hasAttribute('num_users'): n.setAttribute('num_users','N/A') |
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191 num_users = n.getAttribute('num_users') |
| 100 | 192 if not n.hasAttribute('address'): n.setAttribute('address','NO_ADDRESS_GIVEN') |
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193 address = n.getAttribute('address') |
| 100 | 194 if not n.hasAttribute('port'): n.setAttribute('port','6774') |
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195 port = n.getAttribute('port') |
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196 n.setAttribute('meta',meta) |
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197 end_point = str(address) + ":" + str(port) |
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198 if return_hash.has_key(end_point): |
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199 if META_DEBUG: print "Replacing duplicate server entry at " + end_point |
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200 return_hash[end_point] = n |
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201 |
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202 # At this point, we have an amalgamated list of servers |
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203 # Now, we have to construct a new DOM to pass back. |
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204 |
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205 # Create a servers element |
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206 return_dom = orpg.minidom.Element("servers") |
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207 |
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208 # get the nodes stored in return_hash |
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209 return_list = return_hash.values() |
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210 |
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211 # sort them by their name attribute. Uses byNameAttribute() |
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212 # defined above as a comparison function |
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213 |
| 100 | 214 if sort_by == "start": return_list.sort(byStartAttribute) |
| 215 elif sort_by == "name": return_list.sort(byNameAttribute) | |
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216 |
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217 # Add each node to the DOM |
| 100 | 218 for n in return_list: return_dom.appendChild(n) |
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219 return return_dom |
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220 |
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221 ## List Format: |
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222 ## <servers> |
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223 ## <server address=? id=? name=? failed_count=? > |
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224 ## </servers> |
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225 |
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226 def updateMetaCache(xml_dom): |
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227 try: |
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228 if META_DEBUG: print "Updating Meta Server Cache" |
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229 metaservers = xml_dom.getElementsByTagName( 'metaservers' ) # pull out the metaservers bit |
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230 if len(metaservers) == 0: |
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231 cmetalist = getRawMetaList() |
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232 xml_dom = get_server_dom(cmetalist[0]) |
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233 metaservers = xml_dom.getElementsByTagName( 'metaservers' ) |
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234 authoritative = metaservers[0].getAttribute('auth') |
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235 if META_DEBUG: print " Authoritive Meta: "+str(authoritative) |
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236 metas = metaservers[0].getElementsByTagName("meta") # get the list of metas |
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237 if META_DEBUG: print " Meta List ("+str(len(metas))+" servers)" |
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238 try: |
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239 metacache_lock.acquire() |
| 100 | 240 ini = open(dir_struct["user"]+"metaservers.cache","w") |
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241 for meta in metas: |
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242 if META_DEBUG: print " Writing: "+str(meta.getAttribute('path')) |
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243 ini.write(str(meta.getAttribute('path')) + " " + str(meta.getAttribute('versions')) + "\n") |
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244 ini.close() |
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245 finally: |
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246 metacache_lock.release() |
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247 except Exception, e: |
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248 if META_DEBUG: traceback.print_exc() |
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249 print "Meta Server Lib: UpdateMetaCache(): " + str(e) |
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250 |
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251 def getRawMetaList(): |
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252 try: |
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253 try: |
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254 metacache_lock.acquire() |
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255 # Read in the metas |
| 100 | 256 validate.config_file("metaservers.cache","metaservers.cache") |
| 257 ini = open(dir_struct["user"]+"metaservers.cache","r") | |
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258 metas = ini.readlines() |
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259 ini.close() |
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260 return metas |
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261 finally: |
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262 metacache_lock.release() |
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263 except Exception, e: |
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264 if META_DEBUG: traceback.print_exc() |
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265 print "Meta Server Lib: getRawMetaList(): " + str(e) |
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266 return [] |
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267 |
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268 def getMetaServers(versions = None, pick_random=0): |
| 100 | 269 """ |
| 270 get meta server URLs as a list | |
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271 |
| 100 | 272 versions is a list of acceptable version numbers. |
| 273 A False truth value will use getMetaServerBaseURL() | |
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274 |
| 100 | 275 set a default if we have weird reading problems |
| 276 default_url = "http://www.openrpg.com/openrpg_servers.php" | |
| 277 """ | |
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278 |
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279 meta_names = [] |
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280 |
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281 if(versions): # If versions are supplied, then look in metaservers.conf |
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282 try: |
| 100 | 283 """ |
| 284 read in the metas from file | |
| 285 format of file is one meta entry per line | |
| 286 each entry will be the meta url, followed by one or more version numbers that it | |
| 287 handle. Generally, this will be either a 1 for the original Meta format, or | |
| 288 2 for the new one. | |
| 289 """ | |
|
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290 |
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291 # Read in the metas |
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292 metas = getRawMetaList() |
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293 #print str(metas) |
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294 |
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295 # go through each one to check if it should be returned, based on the |
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296 # version numbers allowed. |
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297 for meta in metas: |
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298 |
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299 # split the line on whitespace |
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300 # obviously, your meta servers urls shouldn't contain whitespace. duh. |
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301 words = meta.split() |
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302 success = 0 # init success flag for version check |
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303 for version in versions: # run through each allowed version from caller |
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304 if version in words[1:]: # if the allowed version token was found |
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305 success += 1 # then increment the success indicator |
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306 if success: # if the meta entry is acceptable to the caller |
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307 meta_names.append(words[0]) # add the entry |
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308 if META_DEBUG: print "adding metaserver " + meta |
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309 |
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310 # at this point, we should have at least one name from the cache. If not ... |
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311 if not meta_names: |
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312 default_meta = getMetaServerBaseURL() # grab the meta from ini.xml |
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313 meta_names.append(default_meta) # add it to the return list |
| 100 | 314 # print "Warning!!\nNo valid metaservers cached." |
| 315 # print "Using meta from MetaServerBaseURL: " + default_meta + "\n" | |
|
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316 # if we have more than one and want a random one |
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317 elif pick_random: |
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318 if META_DEBUG: print "choosing random meta from: " + str(meta_names) |
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319 i = int(random.uniform(0,len(meta_names))) |
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320 #meta = meta_names[i] |
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321 meta_names = [meta_names[i]] |
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322 if META_DEBUG: print "using: " + str(meta_names) |
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323 else: |
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324 if META_DEBUG: print "using all metas: " + str(meta_names) |
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325 return meta_names |
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326 except Exception,e: |
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327 print e |
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328 #print "using default meta server URI: " + default_url |
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329 metas = [] |
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330 #metas.append(default_url) |
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331 return metas # return an empty list |
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332 else: # otherwise, use MetaServerBaseURL() |
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333 url = getMetaServerBaseURL() |
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334 meta_names.append(url) |
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335 return meta_names |
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336 |
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337 def getMetaServerBaseURL(): |
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338 # get meta server URL |
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339 url = "http://www.openrpg.com/openrpg_servers.php" |
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340 try: |
| 100 | 341 component.get('validate').config_file("settings.xml","default_settings.xml") |
| 342 ini = open(dir_struct["user"]+"settings.xml","r") | |
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343 txt = ini.read() |
| 100 | 344 xml = component.get('xml') |
| 66 | 345 tree = xml.parseXml(txt)._get_documentElement() |
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346 ini.close() |
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347 node_list = tree.getElementsByTagName("MetaServerBaseURL") |
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348 if node_list: |
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349 url = node_list[0].getAttribute("value") |
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350 |
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351 # allow tree to be collected |
| 100 | 352 try: tree.unlink() |
| 353 except: pass | |
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354 |
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355 except Exception,e: |
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356 print e |
| 100 | 357 #print "using meta server URI: " + url |
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358 return url |
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359 |
| 100 | 360 """ |
| 361 Beginning of Class registerThread | |
| 362 | |
| 363 A Class to Manage Registration with the Meta2 | |
| 364 Create an instance and call it's start() method | |
| 365 if you want to be (and stay) registered. This class | |
| 366 will take care of registering and re-registering as | |
| 367 often as necessary to stay in the Meta list. | |
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368 |
| 100 | 369 You may call register() yourself if you wish to change your |
| 370 server's name. It will immediately update the Meta. There | |
| 371 is no need to unregister first. | |
| 372 | |
| 373 Call unregister() when you no longer want to be registered. | |
| 374 This will result in the registerThread dying after | |
| 375 attempting to immediately remove itself from the Meta. | |
| 376 | |
| 377 If you need to become registered again after that, you | |
| 378 must create a new instance of class registerThread. Don't | |
| 379 just try to call register() on the old, dead thread class. | |
| 380 """ | |
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381 |
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382 class registerThread(Thread): |
| 100 | 383 """ |
| 384 Originally, I wrote this as a sub-class of wxThread, but | |
| 385 A) I couldn't get it to import right | |
| 386 B) I realized that I want this to be used in a server, | |
| 387 which I don't want needing wxWindows to run! | |
| 388 | |
| 389 Because of this fact, there are some methods from wxThread | |
| 390 that I implemented to minimize changes to the code I had | |
| 391 just written, i.e. TestDeleteStatus() and Delete() | |
| 392 """ | |
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393 |
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394 def __init__(self,name=None,realHostName=None,num_users = "Hmmm",MetaPath=None,port=6774,register_callback=None): |
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395 |
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396 Thread.__init__(self,name="registerThread") |
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397 self.rlock = RLock() # Re-entrant lock used to make this class thread safe |
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398 self.die_event = Event() # The main loop in run() will wait with timeout on this |
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399 if name: |
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400 self.name = name # Name that the server want's displayed on the Meta |
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401 else: |
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402 self.name = "Unnamed server" # But use this if for some crazy reason no name is |
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403 # passed to the constructor |
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404 self.num_users = num_users # the number of users currently on this server |
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405 self.realHostName = realHostName # Name to advertise for connection |
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406 self.id = "0" # id returned from Meta. Defaults to "0", which |
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407 # indicates a new registration. |
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408 self.cookie = "0" # cookie returned from Meta. Defaults to "0",which |
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409 # indicates a new registration. |
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410 self.interval = 0 # interval returned from Meta. Is how often to |
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411 # re-register, in minutes. |
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412 self.destroy = 0 # Used to flag that this thread should die |
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413 self.port = str(port) |
| 100 | 414 self.register_callback = register_callback # set a method to call to report result of register |
| 415 """ | |
| 416 This thread will communicate with one and only one | |
| 417 Meta. If the Meta in ini.xml is changed after | |
| 418 instantiation, then this instance must be | |
| 419 unregistered and a new instance instantiated. | |
| 420 | |
| 421 Also, if MetaPath is specified, then use that. Makes | |
| 422 it easier to have multiple registerThreads going to keep the server registered | |
| 423 on multiple (compatible) Metas. | |
| 424 """ | |
|
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425 |
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426 if MetaPath == None: |
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427 self.path = getMetaServerBaseURL() # Do this if no Meta specified |
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428 else: |
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429 self.path = MetaPath |
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430 |
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431 def getIdAndCookie(self): |
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432 return self.id, self.cookie |
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433 |
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434 def TestDeleteStatus(self): |
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435 try: |
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436 self.rlock.acquire() |
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437 return self.die_event.isSet() |
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438 finally: |
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439 self.rlock.release() |
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440 |
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441 def Delete(self): |
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442 try: |
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443 self.rlock.acquire() |
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444 self.die_event.set() |
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445 finally: |
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446 self.rlock.release() |
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447 |
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448 def run(self): |
| 100 | 449 """ |
| 450 This method gets called by Thread implementation | |
| 451 when self.start() is called to begin the thread's | |
| 452 execution | |
| 453 | |
| 454 We will basically enter a loop that continually | |
| 455 re-registers this server and sleeps Interval | |
| 456 minutes until the thread is ordered to die in place | |
| 457 """ | |
|
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458 while(not self.TestDeleteStatus()): # Loop while until told to die |
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459 # Otherwise, call thread safe register(). |
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460 self.register(self.name, self.realHostName, self.num_users) |
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461 if META_DEBUG: print "Sent Registration Data" |
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462 # register() will end up setting the state variables |
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463 # for us, including self.interval. |
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464 try: |
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465 self.rlock.acquire() # Serialize access to this state information |
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466 |
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467 if self.interval >= 3: # If the number of minutes is one or greater |
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468 self.interval -= 1 # wake up with 30 seconds left to re-register |
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469 else: |
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470 self.interval = .5 # Otherwise, we probably experienced some kind |
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471 # of error from the Meta in register(). Sleep |
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472 # for 6 seconds and start from scratch. |
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473 |
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474 finally: # no matter what, release the lock |
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475 self.rlock.release() |
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476 # Wait interval minutes for a command to die |
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477 die_signal = self.die_event.wait(self.interval*60) |
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478 |
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479 # If we get past the while loop, it's because we've been asked to die, |
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480 # so just let run() end. Once this occurs, the thread is dead and |
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481 # calls to Thread.isAlive() return False. |
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482 |
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483 def unregister(self): |
| 100 | 484 """ |
| 485 This method can (I hope) be called from both within the thread | |
| 486 and from other threads. It will attempt to unregister this | |
| 487 server from the Meta database | |
| 488 When this is either accomplished or has been tried hard enough | |
| 489 (after which it just makes sense to let the Meta remove the | |
| 490 entry itself when we don't re-register using this id), | |
| 491 this method will either cause the thread to immediately die | |
| 492 (if called from this thread's context) or set the Destroy flag | |
| 493 (if called from the main thread), a positive test for which will cause | |
| 494 the code in Entry() to exit() when the thread wakes up and | |
| 495 checks TestDeleteStatus(). | |
| 496 lock the critical section. The unlock will | |
| 497 automatically occur at the end of the function in the finally clause | |
| 498 """ | |
|
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499 try: |
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500 self.rlock.acquire() |
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501 if not self.isAlive(): # check to see if this thread is dead |
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502 return 1 # If so, return an error result |
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503 # Do the actual unregistering here |
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504 data = urllib.urlencode( {"server_data[id]":self.id, |
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505 "server_data[cookie]":self.cookie, |
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506 "server_data[version]":PROTOCOL_VERSION, |
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507 "act":"unregister"} ) |
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508 try: |
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509 xml_dom = get_server_dom(data=data, path=self.path) # this POSTS the request and returns the result |
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510 if xml_dom.hasAttribute("errmsg"): |
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511 print "Error durring unregistration: " + xml_dom.getAttribute("errmsg") |
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512 except: |
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513 if META_DEBUG: print "Problem talking to Meta. Will go ahead and die, letting Meta remove us." |
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514 # If there's an error, echo it to the console |
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515 |
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516 # No special handling is required. If the de-registration worked we're done. If |
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517 # not, then it's because we've already been removed or have a bad cookie. Either |
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518 # way, we can't do anything else, so die. |
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519 self.Delete() # This will cause the registerThread to die in register() |
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520 # prep xml_dom for garbage collection |
| 100 | 521 try: xml_dom.unlink() |
| 522 except: pass | |
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523 return 0 |
| 100 | 524 finally: self.rlock.release() |
|
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525 |
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526 def register(self, name=None, realHostName=None, num_users=None): |
| 100 | 527 """ |
| 528 Designed to handle the registration, both new and | |
| 529 repeated. | |
| 530 | |
| 531 It is intended to be called once every interval | |
| 532 (or interval - delta) minutes. | |
|
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533 |
| 100 | 534 lock the critical section. The unlock will |
| 535 automatically occur at the end of the function in the finally clause | |
| 536 """ | |
|
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537 try: |
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538 self.rlock.acquire() |
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539 if not self.isAlive(): # check to see if this thread is dead |
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540 return 1 # If so, return an error result |
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541 |
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542 # Set the server's attibutes, if specified. |
| 100 | 543 if name: self.name = name |
| 544 if num_users != None: self.num_users = num_users | |
| 545 if realHostName: self.realHostName = realHostName | |
|
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546 # build POST data |
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547 if self.realHostName: |
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548 data = urllib.urlencode( {"server_data[id]":self.id, |
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549 "server_data[cookie]":self.cookie, |
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550 "server_data[name]":self.name, |
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551 "server_data[port]":self.port, |
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552 "server_data[version]":PROTOCOL_VERSION, |
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553 "server_data[num_users]":self.num_users, |
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554 "act":"register", |
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555 "server_data[address]": self.realHostName } ) |
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556 else: |
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557 if META_DEBUG: print "Letting meta server decide the hostname to list..." |
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558 data = urllib.urlencode( {"server_data[id]":self.id, |
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559 "server_data[cookie]":self.cookie, |
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560 "server_data[name]":self.name, |
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561 "server_data[port]":self.port, |
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562 "server_data[version]":PROTOCOL_VERSION, |
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563 "server_data[num_users]":self.num_users, |
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564 "act":"register"} ) |
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565 try: |
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566 xml_dom = get_server_dom(data=data,path=self.path) # this POSTS the request and returns the result |
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567 except: |
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568 if META_DEBUG: print "Problem talking to server. Setting interval for retry ..." |
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569 if META_DEBUG: print data |
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570 if META_DEBUG: print |
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571 self.interval = 0 |
| 100 | 572 """ |
| 573 If we are in the registerThread thread, then setting interval to 0 | |
| 574 will end up causing a retry in about 6 seconds (see self.run()) | |
| 575 If we are in the main thread, then setting interval to 0 will do one | |
| 576 of two things: | |
| 577 1) Do the same as if we were in the registerThread | |
| 578 2) Cause the next, normally scheduled register() call to use the values | |
| 579 provided in this call. | |
| 580 | |
| 581 Which case occurs depends on where the registerThread thread is when | |
| 582 the main thread calls register(). | |
| 583 """ | |
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584 return 0 # indicates that it was okay to call, not that no errors occurred |
| 100 | 585 |
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586 # If there is a DOM returned .... |
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587 if xml_dom: |
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588 # If there's an error, echo it to the console |
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589 if xml_dom.hasAttribute("errmsg"): |
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590 print "Error durring registration: " + xml_dom.getAttribute("errmsg") |
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591 if META_DEBUG: print data |
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592 if META_DEBUG: print |
| 100 | 593 """ |
| 594 No special handling is required. If the registration worked, id, cookie, and interval | |
| 595 can be stored and used for the next time. | |
| 596 If an error occurred, then the Meta will delete us and we need to re-register as | |
| 597 a new server. The way to indicate this is with a "0" id and "0" cookie sent to | |
| 598 the server during the next registration. Since that's what the server returns to | |
| 599 us on an error anyway, we just store them and the next registration will | |
| 600 automatically be set up as a new one. | |
| 601 | |
| 602 Unless the server calls register() itself in the meantime. Of course, that's okay | |
| 603 too, because a success on THAT register() call will set up the next one to use | |
| 604 the issued id and cookie. | |
| 605 | |
| 606 The interval is stored unconditionally for similar reasons. If there's an error, | |
| 607 the interval will be less than 1, and the main thread's while loop will reset it | |
| 608 to 6 seconds for the next retry. | |
| 609 Is it wrong to have a method where there's more comments than code? :) | |
| 610 """ | |
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611 try: |
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612 self.interval = int(xml_dom.getAttribute("interval")) |
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613 self.id = xml_dom.getAttribute("id") |
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614 self.cookie = xml_dom.getAttribute("cookie") |
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615 if not xml_dom.hasAttribute("errmsg"): |
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616 updateMetaCache(xml_dom) |
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617 except: |
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618 if META_DEBUG: print |
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619 if META_DEBUG: print "OOPS! Is the Meta okay? It should be returning an id, cookie, and interval." |
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620 if META_DEBUG: print "Check to see what it really returned.\n" |
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621 # Let xml_dom get garbage collected |
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622 try: |
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623 xml_dom.unlink() |
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624 except: |
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625 pass |
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626 else: # else if no DOM is returned from get_server_dom() |
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627 print "Error - no DOM constructed from Meta message!" |
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628 return 0 # Let caller know it was okay to call us |
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629 finally: |
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630 self.rlock.release() |
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631 # End of class registerThread |
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632 ################################################################################ |