template::register_urn (public)
template::register_urn -urn urn -resource resource \ [ -csp_list csp_list ]
Defined in packages/acs-templating/tcl/head-procs.tcl
Register a URN for a resource. These URNs provide a single place for e.g. updating references to external resources when switching between a CDN and a local resource, or when a resource should be updated. We could consider a dns-prefetch for CDN requests. When the url-check is performed at register time, the performance for processing the url can be neglected.
- Switches:
- -urn
(required)- -resource
(required)- -csp_list
(optional)- Partial Call Graph (max 5 caller/called nodes):
- Testcases:
- urn_api
Source code: set key ::template::head::urn($urn) if {[info exists $key]} { set old_resource [set $key] # # Prefer local URLs over non-local ones (starting with http*:) # if {[string match //* $old_resource] || [string match http* $old_resource]} { ns_log notice "overwrite URN: $urn <$old_resource> with <$resource>" set $key $resource set ::template::head::urn_csp($urn) $csp_list } else { ns_log notice "keep old URN: $urn <$old_resource> instead of <$resource>" } } else { set $key $resource set ::template::head::urn_csp($urn) $csp_list ns_log notice "add URN: $urn <$resource>" }XQL Not present: Generic, PostgreSQL, Oracle