wizard/app/mediawiki.py

   1 import re
   2 import distutils.version
   3 import os
   4 import lxml.cssselect
   5 import lxml.etree
   6 import StringIO
   7 import logging
   8
   9 from wizard import app, install, resolve, shell, sql, util
  10 from wizard.app import php
  11
  12 # Note: Maintenance script exit codes
  13 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  14 # MediaWiki has notoriously spotty support for exit codes.  It has
  15 # gotten better, but there are still always cases that slip through,
  16 # such as <https://bugzilla.wikimedia.org/show_bug.cgi?id=29588>.
  17 # As a result, we check both for exit codes AND for the "success"
  18 # message in stdout.
  19
  20 def make_filename_regex(var):
  21     """See :ref:`versioning config <seed>` for more information."""
  22     return 'LocalSettings.php', php.re_var(var)
  23
  24 seed = util.dictmap(make_filename_regex, {
  25         'WIZARD_IP': 'IP', # obsolete, remove after we're done
  26         'WIZARD_SITENAME': 'wgSitename',
  27         'WIZARD_SCRIPTPATH': 'wgScriptPath',
  28         'WIZARD_EMERGENCYCONTACT': ('wgEmergencyContact', 'wgPasswordSender'),
  29         'WIZARD_DBSERVER': 'wgDBserver',
  30         'WIZARD_DBNAME': 'wgDBname',
  31         'WIZARD_DBUSER': 'wgDBuser',
  32         'WIZARD_DBPASSWORD': 'wgDBpassword',
  33         'WIZARD_SECRETKEY': ('wgSecretKey', 'wgProxyKey'),
  34         'WIZARD_UPGRADEKEY': 'wgUpgradeKey',
  35         })
  36
  37 class Application(app.Application):
  38     database = "mysql"
  39     parametrized_files = ['LocalSettings.php'] + php.parametrized_files
  40     deprecated_keys = set(['WIZARD_IP']) | php.deprecated_keys
  41     extractors = app.make_extractors(seed)
  42     extractors.update(php.extractors)
  43     substitutions = app.make_substitutions(seed)
  44     substitutions.update(php.substitutions)
  45     install_schema = install.ArgSchema("db", "admin", "email", "title")
  46     random_keys = set(['WIZARD_SECRETKEY', 'WIZARD_UPGRADEKEY'])
  47     def download(self, version):
  48         series = ".".join(str(version).split(".")[:2])
  49         return "http://download.wikimedia.org/mediawiki/%s/mediawiki-%s.tar.gz" % (series, version)
  50     def checkConfig(self, deployment):
  51         return os.path.isfile("LocalSettings.php")
  52     def detectVersion(self, deployment):
  53         return self.detectVersionFromFile("includes/DefaultSettings.php", php.re_var("wgVersion"))
  54     def checkWeb(self, deployment):
  55         return self.checkWebPage(deployment, "/index.php?title=Main_Page", outputs=["<!-- Served"])
  56     def install(self, version, options):
  57         php.ini_replace_vars()
  58         if version >= distutils.version.LooseVersion("1.17.0"):
  59             self.install_1_17_0(options)
  60         else:
  61             self.install_old(options)
  62     def install_1_17_0(self, options):
  63         util.soft_unlink("LocalSettings.php")
  64         with util.ChangeDirectory("math"):
  65             shell.call("make")
  66         try:
  67             result = shell.eval(
  68                     "php", "maintenance/install.php",
  69                     "--dbname", options.dsn.database,
  70                     "--dbpass", options.dsn.password,
  71                     "--dbserver", options.dsn.host,
  72                     "--dbuser", options.dsn.username,
  73                     "--email", options.email,
  74                     "--pass", options.admin_password,
  75                     "--server", "http://" + options.web_host,
  76                     "--scriptpath", options.web_path,
  77                     options.title, options.admin_name,
  78                     log=True)
  79         except shell.CallError as e:
  80             raise app.RecoverableInstallFailure("Install script returned non-zero exit code\nSTDOUT: %s\nSTDERR: %s" % (e.stdout, e.stderr))
  81         logging.debug("Install script output:\n\n" + result)
  82         # See [Note: Maintenance script exit codes]
  83         results = result.rstrip().split()
  84         if not results or not results[-1] == "done":
  85             raise app.RecoverableInstallFailure(result)
  86
  87     def install_old(self, options):
  88         util.soft_unlink("LocalSettings.php")
  89         os.chmod("config", 0777) # XXX: vaguely sketchy
  90
  91         postdata = {
  92             'Sitename': options.title,
  93             'EmergencyContact': options.email,
  94             'LanguageCode': 'en',
  95             'DBserver': options.dsn.host,
  96             'DBname': options.dsn.database,
  97             'DBuser': options.dsn.username,
  98             'DBpassword': options.dsn.password,
  99             'DBpassword2': options.dsn.password,
 100             'defaultEmail': options.email,
 101             'SysopName': options.admin_name,
 102             'SysopPass': options.admin_password,
 103             'SysopPass2': options.admin_password,
 104             }
 105         result = install.fetch(options, '/config/index.php', post=postdata)
 106         result_etree = lxml.etree.parse(StringIO.StringIO(result), lxml.etree.HTMLParser())
 107         selector = lxml.cssselect.CSSSelector(".error")
 108         error_messages = [e.text for e in selector(result_etree)]
 109         logging.debug("Installation output:\n\n" + result)
 110         if result.find("Installation successful") == -1:
 111             if not error_messages:
 112                 raise app.InstallFailure()
 113             else:
 114                 raise app.RecoverableInstallFailure(error_messages)
 115         os.rename('config/LocalSettings.php', 'LocalSettings.php')
 116
 117     def upgrade(self, d, version, options):
 118         if not os.path.isfile("AdminSettings.php"):
 119             shell.call("git", "checkout", "-q", "mediawiki-" + str(version), "--", "AdminSettings.php")
 120         with util.ChangeDirectory("math"):
 121             shell.call("make")
 122         try:
 123             result = shell.eval("php", "maintenance/update.php", "--quick", log=True)
 124         except shell.CallError as e:
 125             raise app.UpgradeFailure("Update script returned non-zero exit code\nSTDOUT: %s\nSTDERR: %s" % (e.stdout, e.stderr))
 126         logging.debug("Upgrade script output:\n\n" + result)
 127         # See [Note: Maintenance script exit codes]
 128         results = result.rstrip().split()
 129         if not results or not results[-1] == "Done.":
 130             raise app.UpgradeFailure(result)
 131     @app.throws_database_errors
 132     def backup(self, deployment, backup_dir, options):
 133         sql.backup(backup_dir, deployment)
 134     @app.throws_database_errors
 135     def restore(self, deployment, backup_dir, options):
 136         sql.restore(backup_dir, deployment)
 137     @app.throws_database_errors
 138     def remove(self, deployment, options):
 139         sql.drop(deployment.dsn)
 140     def researchFilter(self, filename, added, deleted):
 141         if filename == "LocalSettings.php":
 142             return added == deleted == 10 or added == deleted == 9
 143         elif filename == "AdminSettings.php":
 144             return added == 0 and deleted == 20
 145         elif filename == "config/index.php" or filename == "config/index.php5":
 146             return added == 0
 147         return False
 148
 149 Application.resolutions = {
 150 'LocalSettings.php': [
 151     ("""
 152 <<<<<<<
 153 ***1***
 154 =======
 155 ## The URL base path to the directory containing the wiki;
 156 ## defaults for all runtime URL paths are based off of this.
 157 ## For more information on customizing the URLs please see:
 158 ## http://www.mediawiki.org/wiki/Manual:Short_URL
 159 ***2***
 160 $wgScriptExtension  = ".php";
 161
 162 ## UPO means: this is also a user preference option
 163 >>>>>>>
 164 """, [-1]),
 165     ("""
 166 <<<<<<<
 167 ***1***
 168 =======
 169
 170 # MySQL specific settings
 171 $wgDBprefix         = "";
 172 >>>>>>>
 173 """, ["\n# MySQL specific settings", 1]),
 174     ("""
 175 <<<<<<<
 176 ## is writable, then uncomment this:
 177 ***1***
 178 =======
 179 ## is writable, then set this to true:
 180 $wgEnableUploads       = false;
 181 >>>>>>>
 182 """, [-1]),
 183     ("""
 184 <<<<<<<
 185 ***1***
 186 $wgMathPath         = "{$wgUploadPath}/math";
 187 $wgMathDirectory    = "{$wgUploadDirectory}/math";
 188 $wgTmpDirectory     = "{$wgUploadDirectory}/tmp";
 189 =======
 190 $wgUseTeX           = false;
 191 >>>>>>>
 192 """, [1]),
 193     # order of these rules is important
 194     ("""
 195 <<<<<<<
 196 $configdate = gmdate( 'YmdHis', @filemtime( __FILE__ ) );
 197 $wgCacheEpoch = max( $wgCacheEpoch, $configdate );
 198 ***1***
 199 ?>
 200 =======
 201 $wgCacheEpoch = max( $wgCacheEpoch, gmdate( 'YmdHis', @filemtime( __FILE__ ) ) );
 202 >>>>>>>
 203 """, [0, 1]),
 204     ("""
 205 <<<<<<<
 206 $configdate = gmdate( 'YmdHis', @filemtime( __FILE__ ) );
 207 $wgCacheEpoch = max( $wgCacheEpoch, $configdate );
 208 ***1***
 209 =======
 210 $wgCacheEpoch = max( $wgCacheEpoch, gmdate( 'YmdHis', @filemtime( __FILE__ ) ) );
 211 >>>>>>>
 212 """, [0, 1]),
 213     ("""
 214 <<<<<<<
 215 ?>
 216 =======
 217 # When you make changes to this configuration file, this will make
 218 # sure that cached pages are cleared.
 219 $wgCacheEpoch = max( $wgCacheEpoch, gmdate( 'YmdHis', @filemtime( __FILE__ ) ) );
 220 >>>>>>>
 221 """, [0]),
 222     ("""
 223 <<<<<<<
 224 ***1***
 225 ?>
 226 =======
 227 # When you make changes to this configuration file, this will make
 228 # sure that cached pages are cleared.
 229 $wgCacheEpoch = max( $wgCacheEpoch, gmdate( 'YmdHis', @filemtime( __FILE__ ) ) );
 230 >>>>>>>
 231 """, [1, 0]),
 232     ("""
 233 <<<<<<<
 234 ***1***
 235 =======
 236 # When you make changes to this configuration file, this will make
 237 # sure that cached pages are cleared.
 238 $wgCacheEpoch = max( $wgCacheEpoch, gmdate( 'YmdHis', @filemtime( __FILE__ ) ) );
 239 >>>>>>>
 240 """, [1, 0]),
 241     ]
 242 }
 243