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Changes between Version 3 and Version 4 of TracModPython


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Timestamp:
04/23/13 20:18:20 (5 years ago)
Author:
trac
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  • TracModPython

    v3 v4  
    44Trac supports [http://www.modpython.org/ mod_python], which speeds up Trac's response times considerably, especially compared to [TracCgi CGI], and permits use of many Apache features not possible with [wiki:TracStandalone tracd]/mod_proxy. 
    55 
    6 These instructions are for Apache 2; if you are still using Apache 1.3, you may have some luck with [trac:wiki:TracModPython2.7 TracModPython2.7]. 
    7  
    8 == A Word of Warning == 
     6{{{#!div class="important" 
     7** A Word of Warning ** 
    98 
    109As of 16^th^ June 2010, the mod_python project is officially dead.  If you are considering using mod_python for a new installation, '''please don't'''!  There are known issues which will not be fixed and there are now better alternatives.  Check out the main TracInstall pages for your target version for more information. 
    11  
    12 == Simple configuration == 
     10}}} 
     11 
     12 
     13These instructions are for Apache 2; if you are still using Apache 1.3, you may have some luck with [trac:wiki:TracModPython2.7 TracModPython2.7], but you'll be totally on your own. 
     14 
     15[[PageOutline(2-3,Overview,inline)]] 
     16 
     17== Simple configuration: single project == #Simpleconfiguration 
    1318 
    1419If you just installed mod_python, you may have to add a line to load the module in the Apache configuration: 
     
    3843   PythonInterpreter main_interpreter 
    3944   PythonHandler mod_python.testhandler 
     45   Order allow,deny 
     46   Allow from all 
    4047</Location> 
    4148}}} 
     
    5057   PythonOption TracEnv /var/trac/myproject 
    5158   PythonOption TracUriRoot /projects/myproject 
     59   Order allow,deny 
     60   Allow from all 
    5261</Location> 
    5362}}} 
     
    5968    # For a single project 
    6069    PythonOption TracEnv /var/trac/myproject 
     70 
    6171    # For multiple projects 
    6272    PythonOption TracEnvParentDir /var/trac/myprojects 
     73 
    6374    # For the index of multiple projects 
    6475    PythonOption TracEnvIndexTemplate /srv/www/htdocs/trac/project_list_template.html 
     76 
    6577    # A space delimitted list, with a "," between key and value pairs. 
    6678    PythonOption TracTemplateVars key1,val1 key2,val2 
     79 
    6780    # Useful to get the date in the wanted order 
    6881    PythonOption TracLocale en_GB.UTF8 
     82 
    6983    # See description above         
    7084    PythonOption TracUriRoot /projects/myproject 
     
    7993 
    8094or you can uncompress the Genshi egg to resolve problems extracting from it. 
     95 
    8196=== Configuring Authentication === 
    8297 
    83 Creating password files and configuring authentication works similar to the process for [wiki:TracCgi#AddingAuthentication CGI]: 
    84 {{{ 
    85 #!xml 
    86 <Location /projects/myproject/login> 
    87   AuthType Basic 
    88   AuthName "myproject" 
    89   AuthUserFile /var/trac/myproject/.htpasswd 
    90   Require valid-user 
    91 </Location> 
    92 }}} 
    93  
    94 Configuration for mod_ldap authentication in Apache is a bit tricky (httpd 2.2.x and OpenLDAP: slapd 2.3.19) 
    95  
    96 1. You need to load the following modules in Apache httpd.conf 
    97 {{{ 
    98 LoadModule ldap_module modules/mod_ldap.so 
    99 LoadModule authnz_ldap_module modules/mod_authnz_ldap.so 
    100 }}} 
    101  
    102 2. Your httpd.conf also needs to look something like: 
    103  
    104 {{{ 
    105 #!xml 
    106 <Location /trac/> 
    107   SetHandler mod_python 
    108   PythonInterpreter main_interpreter 
    109   PythonHandler trac.web.modpython_frontend 
    110   PythonOption TracEnv /home/trac/ 
    111   PythonOption TracUriRoot /trac/ 
    112   Order deny,allow 
    113   Deny from all 
    114   Allow from 192.168.11.0/24 
    115   AuthType Basic 
    116   AuthName "Trac" 
    117   AuthBasicProvider "ldap" 
    118   AuthLDAPURL "ldap://127.0.0.1/dc=example,dc=co,dc=ke?uid?sub?(objectClass=inetOrgPerson)" 
    119   authzldapauthoritative Off 
    120   require valid-user 
    121 </Location> 
    122 }}} 
    123  
    124 Or the LDAP interface to a Microsoft Active Directory: 
    125  
    126 {{{ 
    127 #!xml 
    128 <Location /trac/> 
    129   SetHandler mod_python 
    130   PythonInterpreter main_interpreter 
    131   PythonHandler trac.web.modpython_frontend 
    132   PythonOption TracEnv /home/trac/ 
    133   PythonOption TracUriRoot /trac/ 
    134   Order deny,allow 
    135   Deny from all 
    136   Allow from 192.168.11.0/24 
    137   AuthType Basic 
    138   AuthName "Trac" 
    139   AuthBasicProvider "ldap" 
    140   AuthLDAPURL "ldap://adserver.company.com:3268/DC=company,DC=com?sAMAccountName?sub?(objectClass=user)" 
    141   AuthLDAPBindDN       ldap-auth-user@company.com 
    142   AuthLDAPBindPassword "the_password" 
    143   authzldapauthoritative Off 
    144   # require valid-user 
    145   require ldap-group CN=Trac Users,CN=Users,DC=company,DC=com 
    146 </Location> 
    147 }}} 
    148  
    149 Note 1: This is the case where the LDAP search will get around the multiple OUs, conecting to Global Catalog Server portion of AD (Notice the port is 3268, not the normal LDAP 389). The GCS is basically a "flattened" tree which allows searching for a user without knowing to which OU they belong. 
    150  
    151 Note 2: Active Directory requires an authenticating user/password to access records (AuthLDAPBindDN and AuthLDAPBindPassword). 
    152  
    153 Note 3: The directive "require ldap-group ..."  specifies an AD group whose members are allowed access. 
    154  
     98See corresponding section in the [wiki:TracModWSGI#ConfiguringAuthentication] page. 
     99 
     100 
     101== Advanced Configuration 
    155102 
    156103=== Setting the Python Egg Cache === 
     
    182129Be careful about using the !PythonPath directive, and ''not'' `SetEnv PYTHONPATH`, as the latter won't work. 
    183130 
    184 == Setting up multiple projects == 
     131=== Setting up multiple projects === 
    185132 
    186133The Trac mod_python handler supports a configuration option similar to Subversion's `SvnParentPath`, called `TracEnvParentDir`: 
     
    217164}}} 
    218165 
    219 == Virtual Host Configuration == 
     166=== Virtual Host Configuration === 
    220167 
    221168Below is the sample configuration required to set up your trac as a virtual server (i.e. when you access it at the URLs like 
     
    265212For multiple projects, try restarting the server as well. 
    266213 
     214=== Login Not Working === 
     215If you've used `<Location />` directive, it will override any other directives, as well as `<Location /login>`. 
     216The workaround is to use negation expression as follows (for multi project setups): 
     217{{{ 
     218#!xml 
     219#this one for other pages 
     220<Location ~ "/*(?!login)"> 
     221   SetHandler mod_python 
     222   PythonHandler trac.web.modpython_frontend 
     223   PythonOption TracEnvParentDir /projects 
     224   PythonOption TracUriRoot / 
     225 
     226</Location> 
     227#this one for login page 
     228<Location ~ "/[^/]+/login"> 
     229   SetHandler mod_python 
     230   PythonHandler trac.web.modpython_frontend 
     231   PythonOption TracEnvParentDir /projects 
     232   PythonOption TracUriRoot / 
     233 
     234   #remove these if you don't want to force SSL 
     235   RewriteEngine On  
     236   RewriteCond %{HTTPS} off 
     237   RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} 
     238 
     239   AuthType Basic 
     240   AuthName "Trac" 
     241   AuthUserFile /projects/.htpasswd 
     242   Require valid-user 
     243</Location> 
     244}}} 
     245 
    267246=== Expat-related segmentation faults === #expat 
    268247 
     
    300279 
    301280A success story: For me it worked out-of-box, with following trivial config: 
    302 {{{ 
     281{{{#!xml 
    303282SetHandler mod_python 
    304283PythonInterpreter main_interpreter 
     
    325304}}} 
    326305 
    327  
    328 === Win32 Issues === 
     306=== Platform specific issues 
     307==== Win32 Issues ==== 
    329308If you run trac with mod_python < 3.2 on Windows, uploading attachments will '''not''' work. This problem is resolved in mod_python 3.1.4 or later, so please upgrade mod_python to fix this. 
    330309 
    331310 
    332 === OS X issues === 
     311==== OS X issues ==== 
    333312 
    334313When using mod_python on OS X you will not be able to restart Apache using `apachectl restart`. This is apparently fixed in mod_python 3.2, but there's also a patch available for earlier versions [http://www.dscpl.com.au/projects/vampire/patches.html here]. 
    335314 
    336 === SELinux issues === 
     315==== SELinux issues ==== 
    337316 
    338317If Trac reports something like: ''Cannot get shared lock on db.lock'' 
     
    345324See also [http://subversion.tigris.org/faq.html#reposperms] 
    346325 
    347 === FreeBSD issues === 
     326==== FreeBSD issues ==== 
    348327Pay attention to the version of the installed mod_python and sqlite packages. Ports have both the new and old ones, but earlier versions of pysqlite and mod_python won't integrate as the former requires threaded support in python, and the latter requires a threadless install. 
    349328 
     
    354333export LD_PRELOAD=/usr/lib/libc_r.so 
    355334}}} 
     335 
     336 
     337==== Fedora 7 Issues ==== 
     338Make sure you install the 'python-sqlite2' package as it seems to be required for TracModPython but not for tracd 
     339 
    356340 
    357341=== Subversion issues === 
     
    395379}}} 
    396380 
    397 === Fedora 7 Issues === 
    398 Make sure you install the 'python-sqlite2' package as it seems to be required for TracModPython but not for tracd 
    399  
    400381 
    401382=== Segmentation fault with php5-mhash or other php5 modules ===