1 | """TurboGears middleware initialization""" |
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2 | from sipbmp3web.config.app_cfg import base_config |
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3 | from sipbmp3web.config.environment import load_environment |
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4 | import subprocess, os |
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5 | from pylons import config |
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6 | |
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7 | #Use base_config to setup the necessary WSGI App factory. |
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8 | #make_base_app will wrap the TG2 app with all the middleware it needs. |
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9 | make_base_app = base_config.setup_tg_wsgi_app(load_environment) |
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10 | |
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11 | class FastCGIFixMiddleware(object): |
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12 | """Remove dispatch.fcgi from the SCRIPT_NAME |
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13 | |
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14 | mod_rewrite doesn't do a perfect job of hiding it's actions to the |
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15 | underlying script, which causes TurboGears to get confused and tack |
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16 | on dispatch.fcgi when it really shouldn't. This fixes that problem as a |
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17 | Middleware that fiddles with the appropriate environment variable |
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18 | before any processing takes place. |
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19 | """ |
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20 | def __init__(self, app, global_conf=None): |
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21 | self.app = app |
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22 | def __call__(self, environ, start_response): |
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23 | environ['SCRIPT_NAME'] = environ['SCRIPT_NAME'].replace('/dispatch.fcgi', '') |
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24 | return self.app(environ, start_response) |
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25 | |
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26 | class KinitMiddleware(object): |
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27 | """Performs Kerberos authentication with a keytab""" |
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28 | def __init__(self, app, global_conf=None): |
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29 | self.app = app |
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30 | self.keytab = config["keytab"] |
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31 | def __call__(self, environ, start_response): |
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32 | if self.keytab: |
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33 | subprocess.call(["/usr/kerberos/bin/kinit", "ezyang/extra", "-k", "-t", self.keytab]) |
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34 | return self.app(environ, start_response) |
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35 | |
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36 | def make_app(global_conf, full_stack=True, **app_conf): |
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37 | app = make_base_app(global_conf, full_stack=True, **app_conf) |
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38 | app = FastCGIFixMiddleware(app, global_conf) |
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39 | app = KinitMiddleware(app, global_conf) |
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40 | return app |
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41 | |
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42 | |
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