CVS log for rat/lonwrapper.pm

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- Update POD.

- Move javascript used for handling resize of page containing iframe from
  lonwrapper.pm to two new subroutines in loncommon.pm to facilitate reuse.

- Entity encoding for href in link displayed when iframe not supported.

- No breadcrumbs trail in modal pop-up when previewing aboutme, syllabus,
  roster, and pdf documents from links in Course Editor.
- Breadcrumbs trails for "Supplemental" and "Main" content more consistent:
  - No Main Menu link as first item if symb or folderpath available
  - No Return to Last location link/icon if symb or folderpath available
- Don't set supplementalflag to 1 for documents uploaded to Main Content
  area which require "showdoc", so breadcrumb trail is available to students.

- Bug 6754
  - Can select from tool definitions set in course's domain or in course
    itself when using External > "External Tool" in Course Editor.

- Entity encoding for last item in breadcrumbs trail.

- Prepend /adm/wrapper for images, pdfs, and non-html documents included in
  folders in Supplemental Content area, so standard LON-CAPA menus, including
  breadcrumb trail will be shown above the resource.

- Remove trailing whitespace. Fix typo in documentation.

- Bug 6972.
  Option in course to display every External Resource Item as link (and
  launch in a tab or window) instead of in iframe.

- On iOS 13-15 "Request Mobile Website" is needed to view a PDF in Safari.
  Browser agent string decoded at request time instead of using value set
  at session initialization, to accommodate user toggling via Aa control.

- Accommodate Apache 2.4 updated to address CVE-2019-0220.
  Reverse piecemeal changes (lonwrapper.pm 1.72 & lonprintout.pm 1.670)
  with generalized solution using PerlTransHandler.

- Fix typo.

- Closing brace omitted from 1.73

- Prevent overlap of iframe and Functions menu in corner case.

- Accommodate Apache 2.4 updated to address CVE-2019-0220, in which
  multiple consecutive slashes are collapsed into a single slash.

- Update perldoc

- Removing trailing whitespace.

- Bug 6910
Gracefully handle display (and preview) for External Resources for which
Content-Security-Policy or X-Frame-Options prevent display in iframe in LC.

- Done button can be used with a gradable external tool to terminate
  access.

- Bug 6754 LON-CAPA as LTI Consumer
  Support for access control using slots, and also for time interval
  for external tools set to be "gradable".

- Inline menu for page wrapper for LTI provider launcher can include
  countdown timer, if instance of external tool is set to be "gradable".

- Bug 6754 LTI Integration.
  Rename get_domain_ltitools() routine in lonnet.pm as get_domain_lti(),
  and require second argument -- $context -- either: consumer or provider).

- xhtml -- satisfy w3c validation.

- Bug 6754. Make LON-CAPA an LTI Tool Consumer (LTI 1.1).
  - Display options are now: iframe, tab and window.

- Bug 6754. Make LON-CAPA an LTI Tool Consumer (LTI 1.1).
  - Name as ext.tool (instead of exttool), so that parameters can be specified
    in packages.tab, based on extension.

- Eliminate use of exttools in URL in place of exttool for External Tools
  where destination URL is https://.
- Override setting for use of iframe to display External Tool, if
  LON-CAPA server is https://, but destination URL is http:// to
  avoid mixed active content issue.

- Bug 6754. Make LON-CAPA an LTI Tool Consumer (LTI 1.1).
  When LTI Tool set to be accessed via link to open new tab,
  domain configuration for each Tool includes:
  (a) default link text
  (b) default text block
  (c) whether link text and/or text block content configurable in course.

- Support display of External Tool to students where hidden URL parameter set.

- For servers using Apache/SSL where an External Resource points at an
  http:// URL, links to display the page use http:// to avoid mixed active
  content issue, unless editing the resource (when https:// is used).

- Remove trailing white space.

- Support "only_body" in query string when displaying syllabus item set to
  external URL.

- Set offset to 0 if no LON-CAPA menu present.

fixed bug 6820

- Bug 6806. Support anchor in URL set for an external resource within the
  "Supplemental Content" area.

- Bug 6806. Support anchor in URL set for an external resource.

- Bug 6806. Support anchor in URL set for an external resource.

- Bug 6754. Make LON-CAPA an LTI Tool Consumer (LTI 1.1). Work in progress.

- On Apache/SSL servers syllabus should always be served by http:// to avoid
  "mixed content" issue when syllabus is an external resource on http:// server).
  - Set $env{'request.use_absolute'} and pass in args to start page so postdata
    is preserved. (bug 6662).
  - Code used for same purpose in rat/lonwrapper.pm rev. 1.44 for external
    resources moved to lonacc.pm to facilitate re-use.
- Detect if syllabus template replaced with uploaded PDF or link to external
  PDF file, and send as arg in call to lonwrapper.pm, to circumvent lack of
  scrolling for multi-page PDFs in iframes on iOS.

- Correction to rev. 1.47.  Adding missing single quotes. Remove duplicated
  HTML.

- Circumvent lack of scrolling for multi-page PDFs in iFrames on iOS
  by substituting inline display in iframe with a link when viewing on
  mobile device (Main Content area).

- Prevent truncation of content in external resources by using
  "overflow:scroll; -webkit-overflow-scrolling:touch" style for div wrapped
  around iframe used to contain external URL, when mobile device (e.g.,
  iPad, iPhone etc.).

- wrapper() takes additional fourth argument -- $is_ext (true if item
  being wrapped is an external resource.

- Bug 6662
  - External Resource items in which the remote URL is http:// need to be
    served from port 80, if the LON-CAPA server hosting the session has
    Apache/SSL.

 -  In addition to committed changes in LON-CAPA modules, an appropriate
    RewriteRule is also needed for <VirtualHost _default_:443> (e.g.,
    in /etc/httpd/conf.d/ssl.conf on the LON-CAPA server. (see:
    http://bugs.loncapa.org/show_bug.cgi?id=6662).

- Title of content item shown in breadcrumbs for supplemental content for
  both uploaded documents, and external resource.

- Breadcrumbs trail for uploaded content in nested folders in
  Supplemental Content.
- Breadcrumbs trail for external resource in Supplemental Content.
- lonwrapper.pm
  - more sanity checking in lonwrapper.pm.
  - increase offset for iframe when functions box is populated.

Trying to get rid of some of the copy/paste regular expressions

- xhtml
  - Although LC_head_subbox was originally intended to occur only once
    on a page, it may occur multiple times (e.g., CSTR).
  - Converting from id to class to allow multiple instances.

- correct selection of LC_iframecontainer
- use scripttag function

- replaced frameset by iframe in lonwrapper
    ! IE 7 doesn't scale iframe to 100% height, IE 6 and 8 do
    ! scrolling in Mobile Safari is limited
- added styles for iframe to loncommon
- replaced menubuttons call in lonwrapper by start_page call to make full use of the new header
- removed remote control specific code (RC will be removed shortly)
- replaced code in lonsyllabus with a call to new wrapper routine
- removed subs initlittle and menubutton from lonmenu since they aren't needed anymore

- Number of rows in upper frame reduced for new inline navigation.
  - Try to allow extra rows if user has a role where a "Functions" box is displayed by checking opa priv for course.

- Increase rows in top frame to eliminate scrolling to see inline menu icons.

- Only re-attach query string if there is one.

- Some external web sites can't handle a trailing & in the query string.

Redesign: no separate accessibility interface, cleaning up a bit

- Escape : in regexp, and separate ? and :

- Regular Expression for both http and https.

Reformatted POD, moved to bottom of file

POD documentation changes

Bug #5642: Adjust top frame to icon mode

Bug #5542: top frame too small

- bunch of \w replacements

	Bug 5094. Display external resources beginning with https.

- bug#5029, might need to enc urls in the frameset

- start_page + frameset

- start_page work
- pass throught the args var to startheadtag

- eliminate wrapper frameset copy and paste

- start_page

- part of BUG#4635, wrappered ext resource should have the symb sent to them.

- ENV -> env

- more $r->content_type eradication

 - BUG#3486, : not being unescaped for wrapped docs

Changes to wrapping of uploaded documents.
Now that /uploaded files are copied from the course's home server to the server hosting the session, lonwrapper no longer needs to use lontokacc to build a home server url to be put in the contents of the main frame.

Various small internationalization bugfixes.

Handle homework rendering through the wrapper.

Attempt to do the inline remote for "wrapped" pages without doing ssi.

The URL might already have a query string, for example from a token.

When ssi'ing "body only," take out menus etc.

Created new subroutine to output only the body of a server-side included
document, both internal and external. Added non-framed mode to lonwrapper
for text-based interface, which still needs a little work.

A lot of things happened here:

* everything menu-related was moved out of lonxml, and into lonmenu
* thus, function calls to registerurl, loadevents and unloadevents modified
* fixed lontex.pm, which actually did not call the right routines
* put in calls to lonmenu::menubuttons, which is supposed to insert buttons
  after the body tag in "textual mode" - this function and registerurl will
  be unified (buttons either in Remote or on top of page)

- reappend query args to wrapped webpage

Bug #1181
Set correct permissions to directly access uploaded HTML files.

Minor change for lonxml::registerurl calls.  This should affect nothing!

GPL

Works now except for page flip.

More functionality - registers page

Handler to incorporate external and binary resources