99
103
os.rename(ivle.conf.svn_conf + ".new", ivle.conf.svn_conf)
100
104
chown_to_webserver(ivle.conf.svn_conf)
102
def rebuild_svn_group_config(store):
106
def rebuild_svn_group_config():
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107
"""Build the complete SVN configuration file for groups
110
groups = conn.get_all('project_group',
111
['groupid', 'groupnm', 'projectsetid'])
105
112
f = open(ivle.conf.svn_group_conf + ".new", "w")
106
113
f.write("# IVLE SVN Group Repositories Configuration\n")
107
114
f.write("# Auto-generated on %s\n" % time.asctime())
109
for group in store.find(ProjectGroup):
110
offering = group.project_set.offering
111
reponame = "_".join([offering.subject.short_name,
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offering.semester.year,
113
offering.semester.semester,
117
projectsetid = g['projectsetid']
118
offeringinfo = conn.get_offering_info(projectsetid)
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subj_short_name = offeringinfo['subj_short_name']
120
year = offeringinfo['year']
121
semester = offeringinfo['semester']
122
reponame = "_".join([subj_short_name, year, semester, g['groupnm']])
115
123
f.write("[%s:/]\n"%reponame)
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for user in group.members:
117
f.write("%s = rw\n" % user.login)
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users = conn.get_projectgroup_members(g['groupid'])
126
f.write("%s = rw\n"%u['login'])
120
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os.rename(ivle.conf.svn_group_conf + ".new", ivle.conf.svn_group_conf)
186
196
Chowns the user's directory within the jail to the given UID.
198
Note: This takes separate username and uid arguments. The UID need not
199
*necessarily* correspond to a Unix username at all, if all you are
200
planning to do is setuid to it. This allows the caller the freedom of
201
deciding the binding between username and uid, if any.
188
203
force: If false, exception if jail already exists for this user.
189
204
If true (default), overwrites it, but preserves home directory.
206
svn_pass: If provided this will be a string, the randomly-generated
207
Subversion password for this user (if you happen to already have it).
208
If not provided, it will be read from the database.
191
210
# MUST run as root or some of this may fail
192
211
if os.getuid() != 0:
193
212
raise Exception("Must run make_jail as root")
195
214
# tempdir is for putting backup homes in
196
tempdir = os.path.join(ivle.conf.jail_src_base, '__temp__')
215
tempdir = os.path.join(ivle.conf.jail_base, '__temp__')
197
216
if not os.path.exists(tempdir):
198
217
os.makedirs(tempdir)
199
218
elif not os.path.isdir(tempdir):
200
219
os.unlink(tempdir)
201
220
os.mkdir(tempdir)
202
userdir = os.path.join(ivle.conf.jail_src_base, user.login)
221
userdir = os.path.join(ivle.conf.jail_src_base, username)
203
222
homedir = os.path.join(userdir, 'home')
204
userhomedir = os.path.join(homedir, user.login) # Return value
223
userhomedir = os.path.join(homedir, username) # Return value
206
225
if os.path.exists(userdir):
213
232
warnings.simplefilter('ignore')
214
233
homebackup = os.tempnam(tempdir)
215
234
warnings.resetwarnings()
216
# Back up the /home directory, delete the entire jail, recreate the
217
# jail directory tree, then copy the /home back
218
# NOTE that shutil.move changed in Python 2.6, it now moves a
219
# directory INTO the target (like `mv`), which it didn't use to do.
220
# This code works regardless.
235
# Note: shutil.move does not behave like "mv" - it does not put a file
236
# into a directory if it already exists, just fails. Therefore it is
237
# not susceptible to tmpnam symlink attack.
221
238
shutil.move(homedir, homebackup)
222
239
shutil.rmtree(userdir)
224
241
shutil.move(homebackup, homedir)
225
242
# Change the ownership of all the files to the right unixid
226
243
logging.debug("chown %s's home directory files to uid %d"
227
%(user.login, user.unixid))
228
os.spawnvp(os.P_WAIT, 'chown', ['chown', '-R', '%d:%d' % (user.unixid,
229
user.unixid), userhomedir])
245
os.chown(userhomedir, uid, uid)
246
for root, dirs, files in os.walk(userhomedir):
247
for fsobj in dirs + files:
248
os.chown(os.path.join(root, fsobj), uid, uid)
231
250
# No user jail exists
232
251
# Set up the user's home directory
233
252
os.makedirs(userhomedir)
234
253
# Chown (and set the GID to the same as the UID).
235
os.chown(userhomedir, user.unixid, user.unixid)
254
os.chown(userhomedir, uid, uid)
236
255
# Chmod to rwxr-xr-x (755)
237
256
os.chmod(userhomedir, 0755)
239
make_ivle_conf(user.login, userdir, user.svn_pass)
240
make_etc_passwd(user.login, userdir, ivle.conf.jail_system, user.unixid)
258
# There are 2 special files which need to be generated specific to this
259
# user: ${python_site_packages}/lib/conf/conf.py and /etc/passwd.
260
# "__" username "__" users are exempt (special)
261
if not (username.startswith("__") and username.endswith("__")):
262
make_conf_py(username, userdir, ivle.conf.jail_system, svn_pass)
263
make_etc_passwd(username, userdir, ivle.conf.jail_system, uid)
242
265
return userhomedir
244
def make_ivle_conf(username, user_jail_dir, svn_pass):
267
def make_conf_py(username, user_jail_dir, staging_dir, svn_pass=None):
246
269
Creates (overwriting any existing file, and creating directories) a
247
file /etc/ivle/ivle.conf in a given user's jail.
270
file ${python_site_packages}/ivle/conf/conf.py in a given user's jail.
248
271
username: Username.
249
272
user_jail_dir: User's jail dir, ie. ivle.conf.jail_base + username
250
svn_pass: User's SVN password.
273
staging_dir: The dir with the staging copy of the jail. (With the
274
template conf.py file).
275
svn_pass: As with make_jail. User's SVN password, but if not supplied,
276
will look up in the DB.
252
conf_path = os.path.join(user_jail_dir, "etc/ivle/ivle.conf")
278
template_conf_path = os.path.join(staging_dir,
279
ivle.conf.python_site_packages[1:], "ivle/conf/conf.py")
280
conf_path = os.path.join(user_jail_dir,
281
ivle.conf.python_site_packages[1:], "ivle/conf/conf.py")
253
282
os.makedirs(os.path.dirname(conf_path))
255
# In the "in-jail" version of conf, we don't need MOST of the details
256
# (it would be a security risk to have them here).
257
# So we just write root_dir.
258
conf_obj = ivle.config.Config(blank=True)
259
conf_obj.filename = conf_path
260
conf_obj['urls']['root'] = ivle.conf.root_dir
261
conf_obj['urls']['public_host'] = ivle.conf.public_host
262
conf_obj['urls']['svn_addr'] = ivle.conf.svn_addr
263
conf_obj['user_info']['login'] = username
264
conf_obj['user_info']['svn_pass'] = svn_pass
284
# If svn_pass isn't supplied, grab it from the DB
286
dbconn = ivle.db.DB()
287
svn_pass = dbconn.get_user(username).svn_pass
290
# Read the contents of the template conf file
292
template_conf_file = open(template_conf_path, "r")
293
template_conf_data = template_conf_file.read()
294
template_conf_file.close()
296
# Couldn't open template conf.py for some reason
297
# Just treat it as empty file
298
template_conf_data = ("# Warning: Problem building config script.\n"
299
"# Could not find template conf.py file.\n")
301
conf_file = open(conf_path, "w")
302
conf_file.write(template_conf_data)
303
conf_file.write("\n# The login name for the owner of the jail\n")
304
conf_file.write("login = %s\n" % repr(username))
305
conf_file.write("\n")
306
conf_file.write("# The subversion-only password for the owner of "
308
conf_file.write("svn_pass = %s\n" % repr(svn_pass))
267
311
# Make this file world-readable
268
312
# (chmod 644 conf_path)
285
329
% (username, unixid, unixid, username))
286
330
passwd_file.close()
332
def make_user_db(throw_on_error = True, **kwargs):
333
"""Creates a user's entry in the database, filling in all the fields.
334
All arguments must be keyword args. They are the fields in the table.
335
However, instead of supplying a "passhash", you must supply a
336
"password" argument, which will be hashed internally.
337
Also do not supply a state. All users are created in the "no_agreement"
339
Also pulls the user's subjects using the configured subject pulldown
340
module, and adds enrolments to the DB.
341
Throws an exception if the user already exists.
343
dbconn = ivle.db.DB()
344
dbconn.create_user(**kwargs)
347
if kwargs['password']:
348
if os.path.exists(ivle.conf.svn_auth_local):
352
res = os.system("htpasswd -%smb %s %s %s" % (create,
353
ivle.conf.svn_auth_local,
356
if res != 0 and throw_on_error:
357
raise Exception("Unable to create local-auth for %s" % kwargs['login'])
359
# Make sure the file is owned by the web server
361
chown_to_webserver(ivle.conf.svn_auth_local)
363
# Pulldown subjects and add enrolments
364
ivle.pulldown_subj.enrol_user(kwargs['login'])
288
366
def mount_jail(login):
289
367
# This is where we'll mount to...
290
368
destdir = os.path.join(ivle.conf.jail_base, login)