UID resolution doesn't seem to work quite right, switch to path temporarily.

[wizard.git] / plugins / scripts / wizard_scripts.py

diff --git a/plugins/scripts/wizard_scripts.py b/plugins/scripts/wizard_scripts.py
index 45fadbd62fcc744362ca5b7a6afde3495634ebd2..1dde2bd55b7eb73ee705c8153cfec749e9e023bb 100644 (file)
--- a/plugins/scripts/wizard_scripts.py
+++ b/plugins/scripts/wizard_scripts.py
@@ -9,29 +9,35 @@ import logging
 import urlparse
 import time
 import errno
+import sqlalchemy
 
 import wizard
-from wizard import shell, util
+from wizard import deploy, shell, install, util, user
 
 def deploy_web(dir):
     # try the directory
     homedir, _, web_path = dir.partition("/web_scripts")
     if web_path:
+        # XXX: To be truly correct, we should emulate the logic of suexec; but
+        # looking at the home directory is a pretty good stopgap for now
+        name = homedir.rpartition("/")[2]
         yield urlparse.ParseResult(
                 "http",
-                util.get_dir_owner(homedir) + ".scripts.mit.edu",
+                name + ".scripts.mit.edu",
                 web_path.rstrip('/'),
                 "", "", "")
         yield urlparse.ParseResult(
                 "http",
                 "scripts.mit.edu",
-                "/~" + util.get_dir_owner(homedir) + web_path.rstrip('/'),
+                "/~" + name + web_path.rstrip('/'),
                 "", "", "")
+    else:
+        logging.info("Directory location did not contain web_scripts: %s", dir)
 
 def user_quota(dir=None):
     """
     Returns a tuple (quota usage, quota limit).  Works only for scripts
-    servers.  Values are in KiB.  Returns ``(0, None)`` if we couldn't figure it out.
+    servers.  Values are in bytes.  Returns ``(0, None)`` if we couldn't figure it out.
     """
     end = 2
     # sometimes the volume is busy; so we try several times
@@ -82,9 +88,10 @@ def _user_quota(dir=None):
             return unknown
     except shell.CallError:
         return unknown
+    logging.debug("vos examine output was:\n\n" + "\n".join(result))
     try:
-        usage = int(result[0].split()[3])
-        limit = int(result[3].split()[1]) # XXX: FRAGILE
+        usage = int(result[0].split()[3]) * 1024
+        limit = int(result[3].split()[1]) * 1024 # XXX: FRAGILE
     except ValueError:
         raise QuotaParseError("vos examine output was:\n\n" + "\n".join(result))
     return (usage, limit)
@@ -107,3 +114,83 @@ def sql_auth(url):
         except shell.CallError:
             pass
     return None
+
+def user_email(name):
+    # XXX: simplistic install which doesn't work most of the time
+    return "%s@scripts.mit.edu" % name
+
+def user_operator():
+    """
+    Returns username of the person operating this script based
+    off of the :envvar:`SSH_GSSAPI_NAME` environment variable.
+
+    .. note::
+
+        :envvar:`SSH_GSSAPI_NAME` is not set by a vanilla OpenSSH
+        distributions.  Scripts servers are patched to support this
+        environment variable.
+    """
+    principal = os.getenv("SSH_GSSAPI_NAME")
+    if not principal:
+        return None
+    instance, _, _ = principal.partition("@")
+    if instance.endswith("/root"):
+        username, _, _ = principal.partition("/")
+    else:
+        username = instance
+    return username
+
+def user_passwd(dir, uid):
+    # XXX: simplistic heuristic for detecting AFS.  The correct thing to
+    # is either to statfs and match magic number, use one of the
+    # vos tools or check mounted directories.
+    if not dir.startswith("/afs/"):
+        return None
+    try:
+        result = shell.eval("hesinfo", str(uid), "uid")
+    except shell.CallError:
+        return None
+    name, password, uid, gid, gecos, homedir, console = result.split(":")
+    realname = gecos.split(",")[0]
+    return user.Info(name, uid, gid, realname, homedir, console)
+
+class MysqlStrategy(install.Strategy):
+    """
+    Performs scripts specific guesses for MySQL variables.  This
+    may create an appropriate database for the user.
+    """
+    side_effects = True
+    provides = frozenset(["dsn"])
+    def prepare(self):
+        """Uses the SQL programs in the scripts locker"""
+        if self.application.database != "mysql":
+            raise install.StrategyFailed
+        try:
+            self._triplet = shell.eval("/mit/scripts/sql/bin/get-password").split()
+        except shell.CallError:
+            raise install.StrategyFailed
+        if len(self._triplet) != 3:
+            raise install.StrategyFailed
+        self._username = os.getenv('USER')
+        if self._username is None:
+            raise install.StrategyFailed
+    def execute(self, options):
+        """Creates a new database for the user using ``get-next-database`` and ``create-database``."""
+        host, username, password = self._triplet
+        # race condition
+        name = shell.eval("/mit/scripts/sql/bin/get-next-database", os.path.basename(self.dir))
+        database = shell.eval("/mit/scripts/sql/bin/create-database", name)
+        options.dsn = sqlalchemy.engine.url.URL("mysql", username=username, password=password, host=host, database=database)
+
+class EmailStrategy(install.Strategy):
+    """Performs script specific guess for email."""
+    provides = frozenset(["email"])
+    def prepare(self):
+        """Uses :envvar:`USER` and assumes you are an MIT affiliate."""
+        # XXX: This might be buggy, because locker might be set to USER
+        self._user = os.getenv("USER")
+        if self._user is None:
+            raise install.StrategyFailed
+    def execute(self, options):
+        """No-op."""
+        options.email = self._user + "@mit.edu"