#!/usr/local/bin/python
# This CGI script can be placed anywhere that a webserver will execute it.
# Access to all Flamenco instances is provided through this one script.
# Ka-Ping Yee <ping@sims.berkeley.edu>, September 21, 2005
# --------------------------------------------------------------------------
# The following line should specify the Flamenco installation directory.
FLAMENCO_DIR='/usr/local/flamenco'
# --------------------------------------------------------------------------
import sys, os, time, cgitb
cgitb.enable()
thisfile = os.path.basename(__file__)
INSTANCES_DIR = os.path.join(FLAMENCO_DIR, 'instances')
path = os.environ.get('PATH_INFO', '').replace('/', ' ').split()
instance = path and path[0] or ''
os.environ['PATH_INFO'] = '/' + '/'.join(path[1:])
def exists(instance):
instdir = os.path.join(INSTANCES_DIR, instance)
return os.path.isdir(instdir)
def running(instance):
instdir = os.path.join(INSTANCES_DIR, instance)
pidfile = os.path.join(instdir, 'appserverpid.txt')
if os.path.isfile(pidfile):
pid = open(pidfile).read().strip()
for line in os.popen('ps -o pid -p %s' % pid, 'r'):
if line.strip() == pid:
return 1
return 0
def quit(*text):
print 'Content-Type: text/html\n\n'
print '''<head><style>
body { font-family: lucida grande, verdana, sans-serif; margin: 0; }
h1, h2 { padding: 16px; color: #fd4; background: #248; margin: 0; }
h1 a, h2 a { color: #fd4; }
h1 { font-size: 24px; padding-bottom: 0; }
h2 { font-size: 10px; font-weight: normal; padding-top: 0; }
div { font-size: 12px; padding: 16px; }
pre { padding-left: 32px; }
</style></head>
<h1><a href="http://flamenco.berkeley.edu/">Flamenco</a></h1>
<h2>University of California, Berkeley</h2>
<div>%s</div>''' % '\n'.join(text)
sys.exit(0)
#try:
sys.path.insert(1, os.path.join(FLAMENCO_DIR, 'python'))
import MySQLdb
#except:
# quit('''The MySQLdb module for Python could not be loaded. Flamenco
# needs this module in order to work. Please reinstall Flamenco
# or <a href="http://sf.net/projects/mysql-python/">download the
# module from SourceForge</a>.''')
if instance:
launchable = os.access(os.path.join(
INSTANCES_DIR, instance, 'flamenco-%s' % instance), os.X_OK)
if exists(instance):
if not running(instance):
if not launchable:
quit('The %r instance is not running ' % instance,
'and autostart is not enabled for this instance.')
server = os.path.join(FLAMENCO_DIR, 'bin', 'flamenco-server')
os.system('%s "%s" &' % (server, instance))
for i in range(15):
time.sleep(1)
if running(instance):
break
if running(instance):
WEBWARE_DIR = os.path.join(FLAMENCO_DIR, 'webware')
sys.path.insert(1, WEBWARE_DIR)
from WebKit.Adapters import CGIAdapter
CGIAdapter.main(os.path.join(INSTANCES_DIR, instance))
else:
LOG_PATH = os.path.join(INSTANCES_DIR, instance, 'log.txt')
log = '<p>Check the log file at %r for more details. ' % LOG_PATH
try:
loglines = os.popen('tail -25 "%s"' % LOG_PATH).read()
loglines = loglines.replace('&', '&').replace('<', '<')
log += 'Here are the last few lines: <pre>%s</pre>' % loglines
except:
pass
quit('The %r instance failed to start. %s' % (instance, log))
else:
quit('There is no Flamenco instance named %r.' % instance)
else:
items = []
if not os.path.isdir(INSTANCES_DIR):
quit('The instance directory %r is missing.' % INSTANCES_DIR)
for instance in os.listdir(INSTANCES_DIR):
dir = os.path.join(INSTANCES_DIR, instance)
url = '%s/%s/Flamenco' % (thisfile, instance)
if os.path.isdir(dir):
if os.access(os.path.join(dir, 'flamenco-%s' % instance), os.X_OK):
items.append('<li><a href="%s">%s</a>' % (url, instance))
if not running(instance):
items.append('(not running, click to start)')
elif running(instance):
items.append('<li><a href="%s">%s</a>' % (url, instance))
else:
items.append('<li>%s (not running, not startable)' % instance)
if items:
quit('Choose a Flamenco instance:', '<ul>%s</ul>' % '\n'.join(items))
else:
quit('There are no Flamenco instances yet. ',
'To create one, use the command:',
'<pre>%s/bin/flamenco import</pre>' % FLAMENCO_DIR)