23
23
# This is a command-line application, for use by the administrator.
24
# This program is a frontend for the modules in the setup packages that
25
# build and install IVLE in separate steps.
24
# This program configures, builds and installs IVLE in three separate steps.
26
25
# It is called with at least one argument, which specifies which operation to
28
# setup.py listmake (for developer use only)
29
# Recurses through the source tree and builds a list of all files which should
30
# be copied upon installation. This should be run by the developer before
31
# cutting a distribution, and the listfile it generates should be included in
32
# the distribution, avoiding the administrator having to run it.
34
# setup.py config [args]
35
# Configures IVLE with machine-specific details, most notably, various paths.
36
# Either prompts the administrator for these details or accepts them as
38
# Creates lib/conf/conf.py and trampoline/conf.h.
41
# Compiles all files and sets up a jail template in the source directory.
43
# Compiles (GCC) trampoline/trampoline.c to trampoline/trampoline.
45
# Creates standard subdirs inside the jail, eg bin, opt, home, tmp.
46
# Copies console/ to a location within the jail.
47
# Copies OS programs and files to corresponding locations within the jail
48
# (eg. python and Python libs, ld.so, etc).
49
# Generates .pyc files for all the IVLE .py files.
51
# setup.py install [--nojail] [--dry|n]
53
# Create target install directory ($target).
55
# Copy trampoline/trampoline to $target/bin.
56
# chown and chmod the installed trampoline.
57
# Copy www/ to $target.
58
# Copy jail/ to jails template directory (unless --nojail specified).
71
# Import modules from the website is tricky since they're in the www
73
sys.path.append(os.path.join(os.getcwd(), 'lib'))
75
import common.makeuser
77
# Determine which Python version (2.4 or 2.5, for example) we are running,
78
# and use that as the filename to the Python directory.
79
# Just get the first 3 characters of sys.version.
80
PYTHON_VERSION = sys.version[0:3]
82
# Operating system files to copy over into the jail.
83
# These will be copied from the given place on the OS file system into the
84
# same place within the jail.
87
'/lib/tls/i686/cmov/libc.so.6',
88
'/lib/tls/i686/cmov/libdl.so.2',
89
'/lib/tls/i686/cmov/libm.so.6',
90
'/lib/tls/i686/cmov/libpthread.so.0',
91
'/lib/tls/i686/cmov/libutil.so.1',
94
# These 2 files do not exist in Ubuntu
95
#'/etc/ld.so.preload',
96
#'/etc/ld.so.nohwcap',
102
'/usr/bin/python%s' % PYTHON_VERSION,
103
# Needed by fileservice
104
'/lib/libcom_err.so.2',
105
'/lib/libcrypt.so.1',
106
'/lib/libkeyutils.so.1',
107
'/lib/libresolv.so.2',
110
'/usr/lib/libapr-1.so.0',
111
'/usr/lib/libaprutil-1.so.0',
112
'/usr/lib/libdb-4.4.so',
113
'/usr/lib/libexpat.so.1',
114
'/usr/lib/libgcrypt.so.11',
115
'/usr/lib/libgnutls.so.13',
116
'/usr/lib/libgpg-error.so.0',
117
'/usr/lib/libgssapi_krb5.so.2',
118
'/usr/lib/libk5crypto.so.3',
119
'/usr/lib/libkrb5.so.3',
120
'/usr/lib/libkrb5support.so.0',
121
'/usr/lib/liblber.so.2',
122
'/usr/lib/libldap_r.so.2',
123
'/usr/lib/libneon.so.26',
124
'/usr/lib/libpq.so.5',
125
'/usr/lib/libsasl2.so.2',
126
'/usr/lib/libsqlite3.so.0',
127
'/usr/lib/libsvn_client-1.so.1',
128
'/usr/lib/libsvn_delta-1.so.1',
129
'/usr/lib/libsvn_diff-1.so.1',
130
'/usr/lib/libsvn_fs-1.so.1',
131
'/usr/lib/libsvn_fs_base-1.so.1',
132
'/usr/lib/libsvn_fs_fs-1.so.1',
133
'/usr/lib/libsvn_ra-1.so.1',
134
'/usr/lib/libsvn_ra_dav-1.so.1',
135
'/usr/lib/libsvn_ra_local-1.so.1',
136
'/usr/lib/libsvn_ra_svn-1.so.1',
137
'/usr/lib/libsvn_repos-1.so.1',
138
'/usr/lib/libsvn_subr-1.so.1',
139
'/usr/lib/libsvn_wc-1.so.1',
140
'/usr/lib/libtasn1.so.3',
141
'/usr/lib/libxml2.so.2',
142
# Needed by matplotlib
143
'/usr/lib/i686/cmov/libssl.so.0.9.8',
144
'/usr/lib/i686/cmov/libcrypto.so.0.9.8',
145
'/lib/tls/i686/cmov/libnsl.so.1',
146
'/usr/lib/libz.so.1',
147
'/usr/lib/atlas/liblapack.so.3',
148
'/usr/lib/atlas/libblas.so.3',
149
'/usr/lib/libg2c.so.0',
150
'/usr/lib/libstdc++.so.6',
151
'/usr/lib/libfreetype.so.6',
152
'/usr/lib/libpng12.so.0',
153
'/usr/lib/libBLT.2.4.so.8.4',
154
'/usr/lib/libtk8.4.so.0',
155
'/usr/lib/libtcl8.4.so.0',
156
'/usr/lib/tcl8.4/init.tcl',
157
'/usr/lib/libX11.so.6',
158
'/usr/lib/libXau.so.6',
159
'/usr/lib/libXdmcp.so.6',
160
'/lib/libgcc_s.so.1',
163
# Symlinks to make within the jail. Src mapped to dst.
165
'python%s' % PYTHON_VERSION: 'jail/usr/bin/python',
167
# Trees to copy. Src mapped to dst (these will be passed to action_copytree).
169
'/usr/lib/python%s' % PYTHON_VERSION:
170
'jail/usr/lib/python%s' % PYTHON_VERSION,
171
'/usr/share/matplotlib': 'jail/usr/share/matplotlib',
172
'/etc/ld.so.conf.d': 'jail/etc/ld.so.conf.d',
176
"""A configuration option; one of the things written to conf.py."""
177
def __init__(self, option_name, default, prompt, comment):
178
"""Creates a configuration option.
179
option_name: Name of the variable in conf.py. Also name of the
180
command-line argument to setup.py conf.
181
default: Default value for this variable.
182
prompt: (Short) string presented during the interactive prompt in
184
comment: (Long) comment string stored in conf.py. Each line of this
185
string should begin with a '#'.
187
self.option_name = option_name
188
self.default = default
190
self.comment = comment
192
# Configuration options, defaults and descriptions
194
config_options.append(ConfigOption("root_dir", "/ivle",
195
"""Root directory where IVLE is located (in URL space):""",
197
# In URL space, where in the site is IVLE located. (All URLs will be prefixed
199
# eg. "/" or "/ivle"."""))
200
config_options.append(ConfigOption("ivle_install_dir", "/opt/ivle",
201
'Root directory where IVLE will be installed (on the local file '
204
# In the local file system, where IVLE is actually installed.
205
# This directory should contain the "www" and "bin" directories."""))
206
config_options.append(ConfigOption("jail_base", "/home/informatics/jails",
207
"""Root directory where the jails (containing user files) are stored
208
(on the local file system):""",
210
# In the local file system, where are the student/user file spaces located.
211
# The user jails are expected to be located immediately in subdirectories of
212
# this location."""))
213
config_options.append(ConfigOption("subjects_base",
214
"/home/informatics/subjects",
215
"""Root directory where the subject directories (containing worksheets
216
and other per-subject files) are stored (on the local file system):""",
218
# In the local file system, where are the per-subject file spaces located.
219
# The individual subject directories are expected to be located immediately
220
# in subdirectories of this location."""))
221
config_options.append(ConfigOption("problems_base",
222
"/home/informatics/problems",
223
"""Root directory where the problem directories (containing
224
subject-independent problem sheets) are stored (on the local file
227
# In the local file system, where are the subject-independent problem sheet
228
# file spaces located."""))
229
config_options.append(ConfigOption("public_host", "public.localhost",
230
"""Hostname which will cause the server to go into "public mode",
231
providing login-free access to student's published work:""",
233
# The server goes into "public mode" if the browser sends a request with this
234
# host. This is for security reasons - we only serve public student files on a
235
# separate domain to the main IVLE site.
236
# Public mode does not use cookies, and serves only public content.
237
# Private mode (normal mode) requires login, and only serves files relevant to
238
# the logged-in user."""))
239
config_options.append(ConfigOption("allowed_uids", "33",
240
"""UID of the web server process which will run IVLE.
241
Only this user may execute the trampoline. May specify multiple users as
242
a comma-separated list.
245
# The User-ID of the web server process which will run IVLE, and any other
246
# users who are allowed to run the trampoline. This is stores as a string of
247
# comma-separated integers, simply because it is not used within Python, only
248
# used by the setup program to write to conf.h (see setup.py config)."""))
249
config_options.append(ConfigOption("db_host", "localhost",
250
"""PostgreSQL Database config
251
==========================
252
Hostname of the DB server:""",
254
### PostgreSQL Database config ###
255
# Database server hostname"""))
256
config_options.append(ConfigOption("db_port", "5432",
257
"""Port of the DB server:""",
259
# Database server port"""))
260
config_options.append(ConfigOption("db_dbname", "ivle",
261
"""Database name:""",
264
config_options.append(ConfigOption("db_user", "postgres",
265
"""Username for DB server login:""",
267
# Database username"""))
268
config_options.append(ConfigOption("db_password", "",
269
"""Password for DB server login:
270
(Caution: This password is stored in plaintext in lib/conf/conf.py)""",
272
# Database password"""))
273
config_options.append(ConfigOption("svn_conf", "/opt/ivle/svn/svn.conf",
274
"""The location of the subversion configuration file used by apache
275
to host the user repositories:""",
277
# The location of the subversion configuration file used by
278
# apache to host the user repositories."""))
279
config_options.append(ConfigOption("svn_repo_path", "/home/informatics/repositories",
280
"""The root directory for the subversion repositories:""",
282
# The root directory for the subversion repositories."""))
283
config_options.append(ConfigOption("svn_auth_ivle", "/opt/ivle/svn/ivle.auth",
284
"""The location of the password file used to authenticate users
285
of the subversion repository from the ivle server:""",
287
# The location of the password file used to authenticate users
288
# of the subversion repository from the ivle server."""))
289
config_options.append(ConfigOption("svn_auth_local", "/opt/ivle/svn/local.auth",
290
"""The location of the password file used to authenticate local users
291
of the subversion repository:""",
293
# The location of the password file used to authenticate local users
294
# of the subversion repository."""))
295
config_options.append(ConfigOption("usrmgt_host", "localhost",
296
"""The hostname where the usrmgt-server runs:""",
298
# The hostname where the usrmgt-server runs."""))
299
config_options.append(ConfigOption("usrmgt_port", "2178",
300
"""The port where the usrmgt-server runs:""",
302
# The port where the usrmgt-server runs."""))
303
config_options.append(ConfigOption("usrmgt_magic", "",
304
"""The password for the usrmgt-server:""",
306
# The password for the usrmgt-server."""))
308
# Try importing existing conf, but if we can't just set up defaults
309
# The reason for this is that these settings are used by other phases
310
# of setup besides conf, so we need to know them.
311
# Also this allows you to hit Return to accept the existing value.
313
confmodule = __import__("lib/conf/conf")
314
for opt in config_options:
316
globals()[opt.option_name] = confmodule.__dict__[opt.option_name]
318
globals()[opt.option_name] = opt.default
320
# Just set reasonable defaults
321
for opt in config_options:
322
globals()[opt.option_name] = opt.default
324
# Try importing install_list, but don't fail if we can't, because listmake can
325
# function without it.
331
# Mime types which will automatically be placed in the list by listmake.
332
# Note that listmake is not intended to be run by the final user (the system
333
# administrator who installs this), so the developers can customize the list
334
# as necessary, and include it in the distribution.
335
listmake_mimetypes = ['text/x-python', 'text/html',
336
'application/x-javascript', 'application/javascript',
337
'text/css', 'image/png', 'application/xml']
339
# Main function skeleton from Guido van Rossum
340
# http://www.artima.com/weblogs/viewpost.jsp?thread=4829
33
342
def main(argv=None):
56
oper_func = call_operator(operation)
57
return oper_func(argv[2:])
61
print """Usage: python setup.py operation [options]
67
For help and options for a specific operation use 'help [operation]'."""
70
oper_func = call_operator(operator)
71
oper_func(['operator','--help'])
73
def call_operator(operation):
365
# Disallow run as root unless installing
366
if (operation != 'install' and operation != 'updatejails'
367
and os.geteuid() == 0):
368
print >>sys.stderr, "I do not want to run this stage as root."
369
print >>sys.stderr, "Please run as a normal user."
74
371
# Call the requested operation's function
78
'build' : setup.build.build,
79
'install' : setup.install.install,
377
'listmake' : listmake,
379
'updatejails' : updatejails,
82
382
print >>sys.stderr, (
83
383
"""Invalid operation '%s'. Try python setup.py help."""
386
return oper_func(argv[2:])
388
# Operation functions
392
print """Usage: python setup.py operation [args]
393
Operation (and args) can be:
395
listmake (developer use only)
398
install [--nojail] [--nosubjects] [-n|--dry]
402
print """Usage: python setup.py help [operation]"""
407
if operation == 'help':
408
print """python setup.py help [operation]
409
Prints the usage message or detailed help on an operation, then exits."""
410
elif operation == 'listmake':
411
print """python setup.py listmake
412
(For developer use only)
413
Recurses through the source tree and builds a list of all files which should
414
be copied upon installation. This should be run by the developer before
415
cutting a distribution, and the listfile it generates should be included in
416
the distribution, avoiding the administrator having to run it."""
417
elif operation == 'config':
418
print """python setup.py config [args]
419
Configures IVLE with machine-specific details, most notably, various paths.
420
Either prompts the administrator for these details or accepts them as
421
command-line args. Will be interactive only if there are no arguments given.
422
Takes defaults from existing conf file if it exists.
424
To run IVLE out of the source directory (allowing development without having
425
to rebuild/install), just provide ivle_install_dir as the IVLE trunk
426
directory, and run build/install one time.
428
Creates lib/conf/conf.py and trampoline/conf.h.
431
for opt in config_options:
432
print " --" + opt.option_name
433
print """As explained in the interactive prompt or conf.py.
435
elif operation == 'build':
436
print """python -O setup.py build [--dry|-n]
437
Compiles all files and sets up a jail template in the source directory.
438
-O is recommended to cause compilation to be optimised.
440
Compiles (GCC) trampoline/trampoline.c to trampoline/trampoline.
442
Creates standard subdirs inside the jail, eg bin, opt, home, tmp.
443
Copies console/ to a location within the jail.
444
Copies OS programs and files to corresponding locations within the jail
445
(eg. python and Python libs, ld.so, etc).
446
Generates .pyc or .pyo files for all the IVLE .py files.
448
--dry | -n Print out the actions but don't do anything."""
449
elif operation == 'install':
450
print """sudo python setup.py install [--nojail] [--nosubjects][--dry|-n]
452
Create target install directory ($target).
454
Copy trampoline/trampoline to $target/bin.
455
chown and chmod the installed trampoline.
456
Copy www/ to $target.
457
Copy jail/ to jails template directory (unless --nojail specified).
458
Copy subjects/ to subjects directory (unless --nosubjects specified).
460
--nojail Do not copy the jail.
461
--nosubjects Do not copy the subjects and problems directories.
462
--dry | -n Print out the actions but don't do anything."""
463
elif operation == 'updatejails':
464
print """sudo python setup.py updatejails [--dry|-n]
466
Copy jail/ to each subdirectory in jails directory.
468
--dry | -n Print out the actions but don't do anything."""
470
print >>sys.stderr, (
471
"""Invalid operation '%s'. Try python setup.py help."""
476
# We build two separate lists, by walking www and console
477
list_www = build_list_py_files('www')
478
list_lib = build_list_py_files('lib')
479
list_subjects = build_list_py_files('subjects', no_top_level=True)
480
list_problems = build_list_py_files('problems', no_top_level=True)
482
"scripts/python-console",
483
"scripts/fileservice",
484
"scripts/usrmgt-server",
486
# Make sure that the files generated by conf are in the list
487
# (since listmake is typically run before conf)
488
if "lib/conf/conf.py" not in list_lib:
489
list_lib.append("lib/conf/conf.py")
490
# Write these out to a file
492
# the files that will be created/overwritten
493
listfile = os.path.join(cwd, "install_list.py")
496
file = open(listfile, "w")
498
file.write("""# IVLE Configuration File
500
# Provides lists of all files to be installed by `setup.py install' from
501
# certain directories.
502
# Note that any files with the given filename plus 'c' or 'o' (that is,
503
# compiled .pyc or .pyo files) will be copied as well.
505
# List of all installable files in www directory.
507
writelist_pretty(file, list_www)
509
# List of all installable files in lib directory.
511
writelist_pretty(file, list_lib)
513
# List of all installable files in scripts directory.
515
writelist_pretty(file, list_scripts)
517
# List of all installable files in subjects directory.
518
# This is to install sample subjects and material.
520
writelist_pretty(file, list_subjects)
522
# List of all installable files in problems directory.
523
# This is to install sample exercise material.
525
writelist_pretty(file, list_problems)
528
except IOError, (errno, strerror):
529
print "IO error(%s): %s" % (errno, strerror)
532
print "Successfully wrote install_list.py"
535
print ("You may modify the set of installable files before cutting the "
542
def build_list_py_files(dir, no_top_level=False):
543
"""Builds a list of all py files found in a directory and its
544
subdirectories. Returns this as a list of strings.
545
no_top_level=True means the file paths will not include the top-level
549
for (dirpath, dirnames, filenames) in os.walk(dir):
550
# Exclude directories beginning with a '.' (such as '.svn')
551
filter_mutate(lambda x: x[0] != '.', dirnames)
552
# All *.py files are added to the list
553
pylist += [os.path.join(dirpath, item) for item in filenames
554
if mimetypes.guess_type(item)[0] in listmake_mimetypes]
556
for i in range(0, len(pylist)):
557
_, pylist[i] = pylist[i].split(os.sep, 1)
560
def writelist_pretty(file, list):
561
"""Writes a list one element per line, to a file."""
567
file.write(' %s,\n' % repr(elem))
572
# Set up some variables
575
# the files that will be created/overwritten
576
conffile = os.path.join(cwd, "lib/conf/conf.py")
577
jailconffile = os.path.join(cwd, "lib/conf/jailconf.py")
578
conf_hfile = os.path.join(cwd, "trampoline/conf.h")
580
# Get command-line arguments to avoid asking questions.
583
for opt in config_options:
584
optnames.append(opt.option_name + "=")
585
(opts, args) = getopt.gnu_getopt(args, "", optnames)
588
print >>sys.stderr, "Invalid arguments:", string.join(args, ' ')
592
# Interactive mode. Prompt the user for all the values.
594
print """This tool will create the following files:
598
prompting you for details about your configuration. The file will be
599
overwritten if it already exists. It will *not* install or deploy IVLE.
601
Please hit Ctrl+C now if you do not wish to do this.
602
""" % (conffile, jailconffile, conf_hfile)
604
# Get information from the administrator
605
# If EOF is encountered at any time during the questioning, just exit
608
for opt in config_options:
609
globals()[opt.option_name] = \
610
query_user(globals()[opt.option_name], opt.prompt)
613
# Non-interactive mode. Parse the options.
614
for opt in config_options:
615
if '--' + opt.option_name in opts:
616
globals()[opt.option_name] = opts['--' + opt.option_name]
618
# Error handling on input values
620
allowed_uids_list = map(int, allowed_uids.split(','))
622
print >>sys.stderr, (
623
"Invalid UID list (%s).\n"
624
"Must be a comma-separated list of integers." % allowed_uids)
627
db_port = int(db_port)
628
if db_port < 0 or db_port >= 65536: raise ValueError()
630
print >>sys.stderr, (
631
"Invalid DB port (%s).\n"
632
"Must be an integer between 0 and 65535." % repr(db_port))
635
# Write lib/conf/conf.py
638
conf = open(conffile, "w")
640
conf.write("""# IVLE Configuration File
642
# Miscellaneous application settings
645
for opt in config_options:
646
conf.write('%s\n%s = %s\n' % (opt.comment, opt.option_name,
647
repr(globals()[opt.option_name])))
650
except IOError, (errno, strerror):
651
print "IO error(%s): %s" % (errno, strerror)
654
print "Successfully wrote lib/conf/conf.py"
656
# Write conf/jailconf.py
659
conf = open(jailconffile, "w")
661
# In the "in-jail" version of conf, we don't need MOST of the details
662
# (it would be a security risk to have them here).
663
# So we just write root_dir, and jail_base is "/".
664
# (jail_base being "/" means "jail-relative" paths are relative to "/"
665
# when inside the jail.)
666
conf.write("""# IVLE Configuration File
668
# Miscellaneous application settings
669
# (User jail version)
672
# In URL space, where in the site is IVLE located. (All URLs will be prefixed
674
# eg. "/" or "/ivle".
677
# In the local file system, where are the student/user file spaces located.
678
# The user jails are expected to be located immediately in subdirectories of
682
# The hostname for serving publicly accessible pages
684
""" % (repr(root_dir),repr(public_host)))
687
except IOError, (errno, strerror):
688
print "IO error(%s): %s" % (errno, strerror)
691
print "Successfully wrote lib/conf/jailconf.py"
693
# Write trampoline/conf.h
696
conf = open(conf_hfile, "w")
698
conf.write("""/* IVLE Configuration File
700
* Administrator settings required by trampoline.
701
* Note: trampoline will have to be rebuilt in order for changes to this file
705
/* In the local file system, where are the jails located.
706
* The trampoline does not allow the creation of a jail anywhere besides
707
* jail_base or a subdirectory of jail_base.
709
static const char* jail_base = "%s";
711
/* Which user IDs are allowed to run the trampoline.
712
* This list should be limited to the web server user.
713
* (Note that root is an implicit member of this list).
715
static const int allowed_uids[] = { %s };
716
""" % (repr(jail_base)[1:-1], repr(allowed_uids_list)[1:-1]))
717
# Note: The above uses PYTHON reprs, not C reprs
718
# However they should be the same with the exception of the outer
719
# characters, which are stripped off and replaced
722
except IOError, (errno, strerror):
723
print "IO error(%s): %s" % (errno, strerror)
726
print "Successfully wrote trampoline/conf.h"
729
print "You may modify the configuration at any time by editing"
737
# Get "dry" variable from command line
738
(opts, args) = getopt.gnu_getopt(args, "n", ['dry'])
740
dry = '-n' in opts or '--dry' in opts
743
print "Dry run (no actions will be executed\n"
745
# Compile the trampoline
747
os.chdir('trampoline')
748
action_runprog('make', [], dry)
751
# Create the jail and its subdirectories
752
# Note: Other subdirs will be made by copying files
753
action_mkdir('jail', dry)
754
action_mkdir('jail/home', dry)
755
action_mkdir('jail/tmp', dry)
757
# Copy all console and operating system files into the jail
758
action_copylist(install_list.list_scripts, 'jail/opt/ivle', dry)
759
copy_os_files_jail(dry)
760
# Chmod the python console
761
action_chmod_x('jail/opt/ivle/scripts/python-console', dry)
762
action_chmod_x('jail/opt/ivle/scripts/fileservice', dry)
764
# Also copy the IVLE lib directory into the jail
765
# This is necessary for running certain scripts
766
action_copylist(install_list.list_lib, 'jail/opt/ivle', dry)
767
# IMPORTANT: The file jail/opt/ivle/lib/conf/conf.py contains details
768
# which could compromise security if left in the jail (such as the DB
770
# The "safe" version is in jailconf.py. Delete conf.py and replace it with
772
action_copyfile('lib/conf/jailconf.py',
773
'jail/opt/ivle/lib/conf/conf.py', dry)
775
# Compile .py files into .pyc or .pyo files
776
compileall.compile_dir('www', quiet=True)
777
compileall.compile_dir('lib', quiet=True)
778
compileall.compile_dir('scripts', quiet=True)
779
compileall.compile_dir('jail/opt/ivle/lib', quiet=True)
781
# Set up ivle.pth inside the jail
782
# Need to set /opt/ivle/lib to be on the import path
784
"jail/usr/lib/python%s/site-packages/ivle.pth" % PYTHON_VERSION
785
f = open(ivle_pth, 'w')
786
f.write('/opt/ivle/lib\n')
791
def copy_os_files_jail(dry):
792
"""Copies necessary Operating System files from their usual locations
793
into the jail/ directory of the cwd."""
794
# Currently source paths are configured for Ubuntu.
795
for filename in JAIL_FILES:
796
copy_file_to_jail(filename, dry)
797
for src, dst in JAIL_LINKS.items():
798
action_symlink(src, dst, dry)
799
for src, dst in JAIL_COPYTREES.items():
800
action_copytree(src, dst, dry)
802
def copy_file_to_jail(src, dry):
803
"""Copies a single file from an absolute location into the same location
804
within the jail. src must begin with a '/'. The jail will be located
805
in a 'jail' subdirectory of the current path."""
806
action_copyfile(src, 'jail' + src, dry)
809
# Get "dry" and "nojail" variables from command line
810
(opts, args) = getopt.gnu_getopt(args, "n",
811
['dry', 'nojail', 'nosubjects'])
813
dry = '-n' in opts or '--dry' in opts
814
nojail = '--nojail' in opts
815
nosubjects = '--nosubjects' in opts
818
print "Dry run (no actions will be executed\n"
820
if not dry and os.geteuid() != 0:
821
print >>sys.stderr, "Must be root to run install"
822
print >>sys.stderr, "(I need to chown some files)."
825
# Create the target (install) directory
826
action_mkdir(ivle_install_dir, dry)
828
# Create bin and copy the compiled files there
829
action_mkdir(os.path.join(ivle_install_dir, 'bin'), dry)
830
tramppath = os.path.join(ivle_install_dir, 'bin/trampoline')
831
action_copyfile('trampoline/trampoline', tramppath, dry)
832
# chown trampoline to root and set setuid bit
833
action_chown_setuid(tramppath, dry)
835
# Copy the www and lib directories using the list
836
action_copylist(install_list.list_www, ivle_install_dir, dry)
837
action_copylist(install_list.list_lib, ivle_install_dir, dry)
840
# Copy the local jail directory built by the build action
841
# to the jails template directory (it will be used as a template
842
# for all the students' jails).
843
action_copytree('jail', os.path.join(jail_base, 'template'), dry)
845
# Copy the subjects and problems directories across
846
action_copylist(install_list.list_subjects, subjects_base, dry,
848
action_copylist(install_list.list_problems, problems_base, dry,
851
# Append IVLE path to ivle.pth in python site packages
852
# (Unless it's already there)
853
ivle_pth = os.path.join(sys.prefix,
854
"lib/python%s/site-packages/ivle.pth" % PYTHON_VERSION)
855
ivle_www = os.path.join(ivle_install_dir, "www")
856
ivle_lib = os.path.join(ivle_install_dir, "lib")
857
write_ivle_pth = True
858
write_ivle_lib_pth = True
860
file = open(ivle_pth, 'r')
862
if line.strip() == ivle_www:
863
write_ivle_pth = False
864
elif line.strip() == ivle_lib:
865
write_ivle_lib_pth = False
867
except (IOError, OSError):
870
action_append(ivle_pth, ivle_www)
871
if write_ivle_lib_pth:
872
action_append(ivle_pth, ivle_lib)
876
def updatejails(args):
877
# Get "dry" variable from command line
878
(opts, args) = getopt.gnu_getopt(args, "n", ['dry'])
880
dry = '-n' in opts or '--dry' in opts
883
print "Dry run (no actions will be executed\n"
885
if not dry and os.geteuid() != 0:
886
print >>sys.stderr, "Must be root to run install"
887
print >>sys.stderr, "(I need to chown some files)."
890
# Update the template jail directory in case it hasn't been installed
892
action_copytree('jail', os.path.join(jail_base, 'template'), dry)
894
# Re-link all the files in all students jails.
895
for dir in os.listdir(jail_base):
896
if dir == 'template': continue
897
# First back up the student's home directory
898
temp_home = os.tmpnam()
899
action_rename(os.path.join(jail_base, dir, 'home'), temp_home, dry)
900
# Delete the student's jail and relink the jail files
901
action_linktree(os.path.join(jail_base, 'template'),
902
os.path.join(jail_base, dir), dry)
903
# Restore the student's home directory
904
action_rename(temp_home, os.path.join(jail_base, dir, 'home'), dry)
905
# Set up the user's home directory just in case they don't have a
906
# directory for this yet
907
action_mkdir(os.path.join(jail_base, dir, 'home', dir), dry)
911
# The actions call Python os functions but print actions and handle dryness.
912
# May still throw os exceptions if errors occur.
915
"""Represents an error when running a program (nonzero return)."""
916
def __init__(self, prog, retcode):
918
self.retcode = retcode
920
return str(self.prog) + " returned " + repr(self.retcode)
922
def action_runprog(prog, args, dry):
923
"""Runs a unix program. Searches in $PATH. Synchronous (waits for the
924
program to return). Runs in the current environment. First prints the
925
action as a "bash" line.
927
Throws a RunError with a retcode of the return value of the program,
928
if the program did not return 0.
930
prog: String. Name of the program. (No path required, if in $PATH).
931
args: [String]. Arguments to the program.
932
dry: Bool. If True, prints but does not execute.
934
print prog, string.join(args, ' ')
936
ret = os.spawnvp(os.P_WAIT, prog, args)
938
raise RunError(prog, ret)
940
def action_remove(path, dry):
941
"""Calls rmtree, deleting the target file if it exists."""
945
shutil.rmtree(path, True)
946
except OSError, (err, msg):
947
if err != errno.EEXIST:
949
# Otherwise, didn't exist, so we don't care
951
def action_rename(src, dst, dry):
952
"""Calls rename. Deletes the target if it already exists."""
953
action_remove(dst, dry)
954
print "mv ", src, dst
958
except OSError, (err, msg):
959
if err != errno.EEXIST:
962
def action_mkdir(path, dry):
963
"""Calls mkdir. Silently ignored if the directory already exists.
964
Creates all parent directories as necessary."""
965
print "mkdir -p", path
969
except OSError, (err, msg):
970
if err != errno.EEXIST:
973
def action_copytree(src, dst, dry):
974
"""Copies an entire directory tree. Symlinks are seen as normal files and
975
copies of the entire file (not the link) are made. Creates all parent
976
directories as necessary.
978
See shutil.copytree."""
979
action_remove(dst, dry)
980
print "cp -r", src, dst
982
shutil.copytree(src, dst, True)
984
def action_linktree(src, dst, dry):
985
"""Hard-links an entire directory tree. Same as copytree but the created
986
files are hard-links not actual copies. Removes the existing destination.
988
action_remove(dst, dry)
989
print "<cp with hardlinks> -r", src, dst
991
common.makeuser.linktree(src, dst)
993
def action_copylist(srclist, dst, dry, srcdir="."):
994
"""Copies all files in a list to a new location. The files in the list
995
are read relative to the current directory, and their destinations are the
996
same paths relative to dst. Creates all parent directories as necessary.
997
srcdir is "." by default, can be overridden.
999
for srcfile in srclist:
1000
dstfile = os.path.join(dst, srcfile)
1001
srcfile = os.path.join(srcdir, srcfile)
1002
dstdir = os.path.split(dstfile)[0]
1003
if not os.path.isdir(dstdir):
1004
action_mkdir(dstdir, dry)
1005
print "cp -f", srcfile, dstfile
1008
shutil.copyfile(srcfile, dstfile)
1009
shutil.copymode(srcfile, dstfile)
1010
except shutil.Error:
1013
def action_copyfile(src, dst, dry):
1014
"""Copies one file to a new location. Creates all parent directories
1016
Warn if file not found.
1018
dstdir = os.path.split(dst)[0]
1019
if not os.path.isdir(dstdir):
1020
action_mkdir(dstdir, dry)
1021
print "cp -f", src, dst
1024
shutil.copyfile(src, dst)
1025
shutil.copymode(src, dst)
1026
except (shutil.Error, IOError), e:
1027
print "Warning: " + str(e)
1029
def action_symlink(src, dst, dry):
1030
"""Creates a symlink in a given location. Creates all parent directories
1033
dstdir = os.path.split(dst)[0]
1034
if not os.path.isdir(dstdir):
1035
action_mkdir(dstdir, dry)
1036
# Delete existing file
1037
if os.path.exists(dst):
1039
print "ln -fs", src, dst
1041
os.symlink(src, dst)
1043
def action_append(ivle_pth, ivle_www):
1044
file = open(ivle_pth, 'a+')
1045
file.write(ivle_www + '\n')
1048
def action_chown_setuid(file, dry):
1049
"""Chowns a file to root, and sets the setuid bit on the file.
1050
Calling this function requires the euid to be root.
1051
The actual mode of path is set to: rws--s--s
1053
print "chown root:root", file
1055
os.chown(file, 0, 0)
1056
print "chmod a+xs", file
1057
print "chmod u+rw", file
1059
os.chmod(file, stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
1060
| stat.S_ISUID | stat.S_IRUSR | stat.S_IWUSR)
1062
def action_chmod_x(file, dry):
1063
"""Chmod 755 a file (sets permissions to rwxr-xr-x)."""
1064
print "chmod 755", file
1066
os.chmod(file, stat.S_IXUSR | stat.S_IRUSR | stat.S_IWUSR
1067
| stat.S_IXGRP | stat.S_IRGRP | stat.S_IXOTH | stat.S_IROTH)
1069
def query_user(default, prompt):
1070
"""Prompts the user for a string, which is read from a line of stdin.
1071
Exits silently if EOF is encountered. Returns the string, with spaces
1072
removed from the beginning and end.
1074
Returns default if a 0-length line (after spaces removed) was read.
1076
sys.stdout.write('%s\n (default: "%s")\n>' % (prompt, default))
1078
val = sys.stdin.readline()
1079
except KeyboardInterrupt:
1081
sys.stdout.write("\n")
1083
sys.stdout.write("\n")
1085
if val == '': sys.exit(1)
1086
# If empty line, return default
1088
if val == '': return default
1091
def filter_mutate(function, list):
1092
"""Like built-in filter, but mutates the given list instead of returning a
1093
new one. Returns None."""
1096
# Delete elements which do not match
1097
if not function(list[i]):
88
1101
if __name__ == "__main__":
added
removed
setup.py
