X-Git-Url: https://scripts.mit.edu/gitweb/wizard.git/blobdiff_plain/927306192de34246cb2babe858262e8184a1b57d..ab821ded0093db5f0f2b70e161542292c4f5c7c5:/wizard/app/mediawiki.py

diff --git a/wizard/app/mediawiki.py b/wizard/app/mediawiki.py
index d0888e8..3fdec14 100644
--- a/wizard/app/mediawiki.py
+++ b/wizard/app/mediawiki.py
@@ -1,44 +1,72 @@
 import re
+import distutils.version
 import os
+import datetime
+import logging
+import shlex
+import shutil
 
-from wizard import app, deploy, install, util
+from wizard import app, deploy, install, scripts, shell, util
 from wizard.app import php
 
 def make_filename_regex(var):
-    return 'LocalSettings.php', re.compile('^(\$' + re.escape(var) + r'''\s*=\s*)(.*)(;)$''', re.M)
+    return 'LocalSettings.php', re.compile('^(\$' + app.expand_re(var) + r'''\s*=\s*)(.*)(;)''', re.M)
 
 make_extractor = app.filename_regex_extractor(make_filename_regex)
+make_substitution = app.filename_regex_substitution(make_filename_regex)
+seed = {
+        'WIZARD_IP': 'IP', # obsolete, remove after we're done
+        'WIZARD_SITENAME': 'wgSitename',
+        'WIZARD_SCRIPTPATH': 'wgScriptPath',
+        'WIZARD_EMERGENCYCONTACT': ('wgEmergencyContact', 'wgPasswordSender'),
+        'WIZARD_DBSERVER': 'wgDBserver',
+        'WIZARD_DBNAME': 'wgDBname',
+        'WIZARD_DBUSER': 'wgDBuser',
+        'WIZARD_DBPASSWORD': 'wgDBpassword',
+        'WIZARD_SECRETKEY': ('wgSecretKey', 'wgProxyKey'),
+        }
 
 class Application(deploy.Application):
     parametrized_files = ['LocalSettings.php', 'php.ini']
+    deprecated_keys = set(['WIZARD_IP']) | php.deprecated_keys
     @property
     def extractors(self):
         if not self._extractors:
-            self._extractors = util.dictmap(make_extractor,
-                {'WIZARD_IP': 'IP' # obsolete, remove after we're done
-                ,'WIZARD_SITENAME': 'wgSitename'
-                ,'WIZARD_SCRIPTPATH': 'wgScriptPath'
-                ,'WIZARD_EMERGENCYCONTACT': 'wgEmergencyContact'
-                ,'WIZARD_DBSERVER': 'wgDBserver'
-                ,'WIZARD_DBNAME': 'wgDBname'
-                ,'WIZARD_DBUSER': 'wgDBuser'
-                ,'WIZARD_DBPASSWORD': 'wgDBpassword'
-                ,'WIZARD_PROXYKEY': 'wgProxyKey'
-                })
+            self._extractors = util.dictmap(make_extractor, seed)
             self._extractors.update(php.extractors)
         return self._extractors
     @property
+    def substitutions(self):
+        if not self._substitutions:
+            self._substitutions = util.dictkmap(make_substitution, seed)
+            self._substitutions.update(php.substitutions)
+        return self._substitutions
+    @property
     def install_handler(self):
         handler = install.ArgHandler("mysql", "admin", "email")
         handler.add(install.Arg("title", help="Title of your new MediaWiki install"))
         return handler
-    def install(self, options):
+    def checkConfig(self, deployment):
+        return os.path.isfile(os.path.join(deployment.location, "LocalSettings.php"))
+    def detectVersion(self, deployment):
+        contents = deployment.read("includes/DefaultSettings.php")
+        regex = make_filename_regex("wgVersion")[1]
+        match = regex.search(contents)
+        if not match: return None
+        return distutils.version.LooseVersion(match.group(2)[1:-1])
+    def checkWeb(self, d, out=None):
+        page = d.fetch("/index.php?title=Main_Page")
+        if type(out) is list:
+            out.append(page)
+        return page.find("<!-- Served") != -1
+    def install(self, version, options):
         try:
             os.unlink("LocalSettings.php")
         except OSError:
             pass
 
         os.chmod("config", 0777) # XXX: vaguely sketchy
+
         postdata = {
             'Sitename': options.title,
             'EmergencyContact': options.email,
@@ -53,9 +81,62 @@ class Application(deploy.Application):
             'SysopPass': options.admin_password,
             'SysopPass2': options.admin_password,
             }
-        result = install.fetch(options, 'config/index.php', post=postdata)
+        result = install.fetch(options, '/config/index.php', post=postdata)
         if options.verbose: print result
         if result.find("Installation successful") == -1:
             raise install.Failure()
         os.rename('config/LocalSettings.php', 'LocalSettings.php')
+    def upgrade(self, d, version, options):
+        sh = shell.Shell()
+        if not os.path.isfile("AdminSettings.php"):
+            sh.call("git", "checkout", "-q", "mediawiki-" + str(version), "--", "AdminSettings.php")
+        try:
+            result = sh.eval("php", "maintenance/update.php", "--quick", log=True)
+        except shell.CallError as e:
+            raise app.UpgradeFailure("Update script returned non-zero exit code\nSTDOUT: %s\nSTDERR: %s" % (e.stdout, e.stderr))
+        results = result.rstrip().split()
+        if not results or not results[-1] == "Done.":
+            raise app.UpgradeFailure(result)
+    def backup(self, deployment, options):
+        sh = shell.Shell()
+        # XXX: duplicate code, refactor, also, race condition
+        backupdir = os.path.join(".scripts", "backups")
+        backup = str(deployment.version) + "-" + datetime.date.today().isoformat()
+        outdir = os.path.join(backupdir, backup)
+        if not os.path.exists(backupdir):
+            os.mkdir(backupdir)
+        if os.path.exists(outdir):
+            util.safe_unlink(outdir)
+        os.mkdir(outdir)
+        outfile = os.path.join(outdir, "db.sql")
+        try:
+            sh.call("mysqldump", "--compress", "-r", outfile, *get_mysql_args(deployment))
+            sh.call("gzip", "--best", outfile)
+        except shell.CallError as e:
+            shutil.rmtree(outdir)
+            raise app.BackupFailure(e.stderr)
+        return backup
+    def restore(self, deployment, backup, options):
+        sh = shell.Shell()
+        backup_dir = os.path.join(".scripts", "backups", backup)
+        if not os.path.exists(backup_dir):
+            raise app.RestoreFailure("Backup %s doesn't exist", backup)
+        sql = open(os.path.join(backup_dir, "db.sql"), 'w+')
+        sh.call("gunzip", "-c", os.path.join(backup_dir, "db.sql.gz"), stdout=sql)
+        sql.seek(0)
+        sh.call("mysql", *get_mysql_args(deployment), stdin=sql)
+        sql.close()
 
+def get_mysql_args(d):
+    # XXX: add support for getting these out of options
+    vars = d.extract()
+    if 'WIZARD_DBNAME' not in vars:
+        raise app.BackupFailure("Could not determine database name")
+    triplet = scripts.get_sql_credentials(vars)
+    args = []
+    if triplet is not None:
+        server, user, password = triplet
+        args += ["-h", server, "-u", user, "-p" + password]
+    name = shlex.split(vars['WIZARD_DBNAME'])[0]
+    args.append(name)
+    return args