xo::lti::LTI method form_render (public)

 <instance of xo::lti::LTI[i]> form_render [ -height height ] \
    [ -sandbox sandbox ] [ -style style ] \
    [ -auto_launch_p auto_launch_p ]

Defined in packages/xooauth/tcl/lti-procs.tcl

Set per-call parameters

Switches:
-height
(defaults to "700") (optional)
-sandbox
(defaults to "allow-same-origin allow-scripts allow-forms allow-top-navigation allow-popups allow-popups-to-escape-sandbox allow-downloads") (optional)
-style
(defaults to "min-width:100%;width:100%;min-height:100%;") (optional)
-auto_launch_p
(defaults to "0") (optional)

Partial Call Graph (max 5 caller/called nodes):
%3 dom dom security::csp::require security::csp::require (public) template::add_body_handler template::add_body_handler (public) template::add_footer template::add_footer (public) xo::oauth::nonce xo::oauth::nonce (public) xo::lti::LTI instproc form_render xo::lti::LTI instproc form_render xo::lti::LTI instproc form_render->dom xo::lti::LTI instproc form_render->security::csp::require xo::lti::LTI instproc form_render->template::add_body_handler xo::lti::LTI instproc form_render->template::add_footer xo::lti::LTI instproc form_render->xo::oauth::nonce

Testcases:
No testcase defined.
Source code:
if {![info exists :oauth_timestamp]} {
    set :oauth_timestamp [::xo::oauth::timestamp]
}
if {![info exists :oauth_nonce]} {
    set :oauth_nonce [::xo::oauth::nonce]
}
:get_context

#
# Collect the provided parameters
#
set params {}
set signature_parameters {}
foreach param [::xo::lti::LTI cget -lti_params] {
    if {[info exists :$param]} {
        lappend params $param
        lappend signature_parameters [list $param [set :$param]]
    }
}

#
# Add potential GET parameters from the launch_url to
# the signature parameters.
#
set url_info [ns_parseurl ${:launch_url}]
if {[dict exists $url_info query]} {
    foreach {key value} [ns_set array [ns_parsequery [dict get $url_info query]]] {
        lappend signature_parameters [list $key $value]
    }
}

security::csp::require form-action ${:launch_url}
security::csp::require frame-src ${:launch_url}

#
# Create signature
#
set signature [[::xo::oauth::Signature new  -volatile  -base_string_uri [::xo::oauth::Signature base_string_from_url ${:launch_url}]  -signature_parameters $signature_parameters  -client_secret ${:shared_secret}] generate]

set lti_form_parameters $signature_parameters
lappend lti_form_parameters [list oauth_signature $signature]
#ns_log notice "==================== lti_form_parameters = $lti_form_parameters"

#
# We need an autogenerated frame name, because otherwise,
# cascaded LTI frames may have the same name, which causes
# trouble. However, we might need a configuration option
# to allow opening up in _parent frames.
#
if { ${:launch_presentation_document_target} eq "iframe"} {
    set iframe_name "ltiframe${:oauth_nonce}"
    set target "ltiframe${:oauth_nonce}"
} else {
    set iframe_name ""
    set target "_blank"
}

set form_name ltiform_${:oauth_nonce}
set wrapper_id ltiLaunchFormSubmitArea_${:oauth_nonce}

#
# Create the HTML form.
#
::xo::require_html_procs
dom createDocument div lti
$lti appendFromScript {
    ::html::div id $wrapper_id  {
        ::html::form  target $target  action ${:launch_url}  name $form_name id $form_name method "POST"  encType "application/x-www-form-urlencoded" {
                foreach pair $lti_form_parameters {
                    lassign $pair k v
                    ::html::input type hidden name $k value $v
                }
            }
    }
    #
    # Add iframe if needed
    #
    if {${:launch_presentation_document_target} eq "iframe"} {
        ::html::iframe name $target  style $style  height $height  sandbox $sandbox
    }

}

# auto launch
if {$auto_launch_p} {
    template::add_body_handler  -event onload  -script [subst -nocommands {document.getElementById('$form_name').submit();}]
}

set html [$lti asHTML]
$lti delete

if {${:launch_presentation_document_target} eq "window"} {
    ::template::add_footer -html $html
    set html ""
}

return [list HTML $html form_name $form_name iframe_name $iframe_name]
XQL Not present:
Generic, PostgreSQL, Oracle
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