74
75
chown_to_webserver(path)
76
def rebuild_svn_config(store, config):
77
def rebuild_svn_config(store):
77
78
"""Build the complete SVN configuration file.
78
@param config: An ivle.config.Config object.
80
80
users = store.find(ivle.database.User)
82
# TODO: Populate groups with per-offering tutors/lecturers/etc.
83
conf_name = config['paths']['svn']['conf']
84
temp_name = conf_name + ".new"
85
f = open(temp_name, "w")
84
if role not in groups:
86
groups[role].append(u.login)
87
f = open(ivle.conf.svn_conf + ".new", "w")
86
88
f.write("# IVLE SVN Repositories Configuration\n")
87
89
f.write("# Auto-generated on %s\n" % time.asctime())
98
100
#f.write("@admin = rw\n")
101
os.rename(temp_name, conf_name)
102
chown_to_webserver(conf_name)
103
os.rename(ivle.conf.svn_conf + ".new", ivle.conf.svn_conf)
104
chown_to_webserver(ivle.conf.svn_conf)
104
def rebuild_svn_group_config(store, config):
106
def rebuild_svn_group_config(store):
105
107
"""Build the complete SVN configuration file for groups
106
@param config: An ivle.config.Config object.
108
conf_name = config['paths']['svn']['group_conf']
109
temp_name = conf_name + ".new"
110
f = open(temp_name, "w")
109
f = open(ivle.conf.svn_group_conf + ".new", "w")
111
110
f.write("# IVLE SVN Group Repositories Configuration\n")
112
111
f.write("# Auto-generated on %s\n" % time.asctime())
122
121
f.write("%s = rw\n" % user.login)
125
os.rename(temp_name, conf_name)
126
chown_to_webserver(conf_name)
124
os.rename(ivle.conf.svn_group_conf + ".new", ivle.conf.svn_group_conf)
125
chown_to_webserver(ivle.conf.svn_group_conf)
128
def make_svn_auth(store, login, config, throw_on_error=True):
127
def make_svn_auth(store, login, throw_on_error=True):
129
128
"""Setup svn authentication for the given user.
130
129
Uses the given DB store object. Does not commit to the db.
132
# filename is, eg, /var/lib/ivle/svn/ivle.auth
133
filename = config['paths']['svn']['auth_ivle']
134
passwd = hashlib.md5(uuid.uuid4().bytes).hexdigest()
135
if os.path.exists(filename):
131
passwd = md5.new(uuid.uuid4().bytes).digest().encode('hex')
132
if os.path.exists(ivle.conf.svn_auth_ivle):
140
137
user = ivle.database.User.get_by_login(store, login)
141
138
user.svn_pass = unicode(passwd)
143
res = os.system("htpasswd -%smb %s %s %s" % (create, filename,
140
res = os.system("htpasswd -%smb %s %s %s" % (create,
141
ivle.conf.svn_auth_ivle,
145
143
if res != 0 and throw_on_error:
146
144
raise Exception("Unable to create ivle-auth for %s" % login)
148
146
# Make sure the file is owned by the web server
149
147
if create == "c":
150
chown_to_webserver(filename)
148
chown_to_webserver(ivle.conf.svn_auth_ivle)
199
197
raise Exception("Must run make_jail as root")
201
199
# tempdir is for putting backup homes in
202
jail_src_base = config['paths']['jails']['src']
203
tempdir = os.path.join(jail_src_base, '__temp__')
200
tempdir = os.path.join(ivle.conf.jail_base, '__temp__')
204
201
if not os.path.exists(tempdir):
205
202
os.makedirs(tempdir)
206
203
elif not os.path.isdir(tempdir):
207
204
os.unlink(tempdir)
208
205
os.mkdir(tempdir)
209
userdir = os.path.join(jail_src_base, user.login)
206
userdir = os.path.join(ivle.conf.jail_src_base, user.login)
210
207
homedir = os.path.join(userdir, 'home')
211
208
userhomedir = os.path.join(homedir, user.login) # Return value
220
217
warnings.simplefilter('ignore')
221
218
homebackup = os.tempnam(tempdir)
222
219
warnings.resetwarnings()
223
# Back up the /home directory, delete the entire jail, recreate the
224
# jail directory tree, then copy the /home back
225
# NOTE that shutil.move changed in Python 2.6, it now moves a
226
# directory INTO the target (like `mv`), which it didn't use to do.
227
# This code works regardless.
220
# Note: shutil.move does not behave like "mv" - it does not put a file
221
# into a directory if it already exists, just fails. Therefore it is
222
# not susceptible to tmpnam symlink attack.
228
223
shutil.move(homedir, homebackup)
229
224
shutil.rmtree(userdir)
231
226
shutil.move(homebackup, homedir)
232
227
# Change the ownership of all the files to the right unixid
233
228
logging.debug("chown %s's home directory files to uid %d"
234
229
%(user.login, user.unixid))
235
os.spawnvp(os.P_WAIT, 'chown', ['chown', '-R', '%d:%d' % (user.unixid,
236
user.unixid), userhomedir])
230
os.chown(userhomedir, user.unixid, user.unixid)
231
for root, dirs, files in os.walk(userhomedir):
232
for fsobj in dirs + files:
233
os.chown(os.path.join(root, fsobj), user.unixid, user.unixid)
238
235
# No user jail exists
239
236
# Set up the user's home directory
243
240
# Chmod to rwxr-xr-x (755)
244
241
os.chmod(userhomedir, 0755)
246
make_ivle_conf(user.login, userdir, user.svn_pass, config)
247
make_etc_passwd(user.login, userdir, config['paths']['jails']['template'],
243
make_conf_py(user.login, userdir, user.svn_pass)
244
make_etc_passwd(user.login, userdir, ivle.conf.jail_system, user.unixid)
250
246
return userhomedir
252
def make_ivle_conf(username, user_jail_dir, svn_pass, sys_config):
248
def make_conf_py(username, user_jail_dir, svn_pass):
254
250
Creates (overwriting any existing file, and creating directories) a
255
file /etc/ivle/ivle.conf in a given user's jail.
256
@param username: Username.
257
@param user_jail_dir: User's jail dir, ie. ['jails']['src'] + username
258
@param svn_pass: User's SVN password.
259
@param sys_config: An ivle.config.Config object (the system-wide config).
251
file ${python_site_packages}/ivle/conf/conf.py in a given user's jail.
253
user_jail_dir: User's jail dir, ie. ivle.conf.jail_base + username
254
svn_pass: User's SVN password.
261
conf_path = os.path.join(user_jail_dir, "etc/ivle/ivle.conf")
256
conf_path = os.path.join(user_jail_dir,
257
ivle.conf.python_site_packages[1:], "ivle/conf/conf.py")
262
258
os.makedirs(os.path.dirname(conf_path))
264
260
# In the "in-jail" version of conf, we don't need MOST of the details
265
261
# (it would be a security risk to have them here).
266
# So we just write root_dir.
267
conf_obj = ivle.config.Config(blank=True)
268
conf_obj.filename = conf_path
269
conf_obj['urls']['root'] = sys_config['urls']['root']
270
conf_obj['urls']['public_host'] = sys_config['urls']['public_host']
271
conf_obj['urls']['svn_addr'] = sys_config['urls']['svn_addr']
272
conf_obj['user_info']['login'] = username
273
conf_obj['user_info']['svn_pass'] = svn_pass
262
# So we just write root_dir, and jail_base is "/".
263
# (jail_base being "/" means "jail-relative" paths are relative to "/"
264
# when inside the jail.)
266
# XXX: jail_base is wrong and shouldn't be here. Unfortunately, jail code
267
# uses ivle.studpath.url_to_{local,jailpaths}, both of which use
268
# jail_base. Note that they don't use the bits of the return value
269
# that depend on jail_base, so it can be any string.
270
conf_file = open(conf_path, "w")
271
conf_file.write("""# IVLE jail configuration
273
# In URL space, where in the site is IVLE located. (All URLs will be prefixed
275
# eg. "/" or "/ivle".
276
root_dir = %(root_dir)r
278
# This value is not relevant inside the jail, but must remain for now. See
279
# the XXX in ivle.makeuser.make_conf_py.
282
# The hostname for serving publicly accessible pages
283
public_host = %(public_host)r
285
# The URL under which the Subversion repositories are located.
286
svn_addr = %(svn_addr)r
288
# The login name for the owner of the jail
291
# The subversion-only password for the owner of the jail
292
svn_pass = %(svn_pass)r
293
""" % {'root_dir': ivle.conf.root_dir,
294
'public_host': ivle.conf.public_host,
295
'svn_addr': ivle.conf.svn_addr,
296
'username': username,
297
'svn_pass': svn_pass,
276
301
# Make this file world-readable
277
302
# (chmod 644 conf_path)
294
319
% (username, unixid, unixid, username))
295
320
passwd_file.close()
297
def mount_jail(login, config):
322
def mount_jail(login):
298
323
# This is where we'll mount to...
299
destdir = os.path.join(config['paths']['jails']['mounts'], login)
324
destdir = os.path.join(ivle.conf.jail_base, login)
300
325
# ... and this is where we'll get the user bits.
301
srcdir = os.path.join(config['paths']['jails']['src'], login)
326
srcdir = os.path.join(ivle.conf.jail_src_base, login)
303
328
if not os.path.exists(destdir):
304
329
os.mkdir(destdir)
305
330
if os.system('/bin/mount -t aufs -o dirs=%s:%s=ro none %s'
306
% (srcdir, config['paths']['jails']['template'],
331
% (srcdir, ivle.conf.jail_system, destdir)) == 0:
308
332
logging.info("mounted user %s's jail." % login)
310
334
logging.error("failed to mount user %s's jail!" % login)