CVS log for loncom/interface/lontiny.pm

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- Where session launch was via LTI-mediated deeplinking from another CMS
  launch payload included URL and uniqueID for return of grades, store
  values in nohist_$cid_linkprot_pb.db GDBM file in user's data directory.

- For 2.11.4 (modified)
  Include changes in 1.21 ,1.22

- Bug 6907.
  Update values for request.linkprotexit, request.linkprotpbid, and
  request.linkprotpburl in %env if deep-link is followed and launch URL
  unchanged but their values changed (e.g., different Consumer deep-link).

- Bug 6907.
  Update values for request.linkprot, request.linkprotexit, request.linkprotpbid
  and request.linkprotpburl if deep-link is followed from same Consumer as
  already in use for current session, but launch URL is different.

- For 2.11.4 (modified)
  Reverse changes in 1.8.2.1.  Include changes in 1.19, 1.20

- Fix typo in rev .1.19.

- Bugs 6754 and 6907
  - Return of grades to launcher CMS supported for resources or folders
    accessed via LTI-mediated deep link.
  - Support option: "Encrypt stored consumer secrets defined in domain"
  - Signing of LTI payloads for roster retrieval, passback of grades,
    and callback to logput launcher CMS session all now occur on
    primary library server for course's domain.

- For 2.11.4 (modified)
  Include changes in 1.17, 1.18

- Bug 6975
  - &get_supplemental() routine moved from lonnet.pm to loncommon.pm
  - use LONCAPA::map() moved out of conditional block in loncommon.pm
  - $keeporder arg for update_content_constraints() no longer needed

- Bug 6975
  When checking for stale session indicates update of session needed for
  supplemental content change(s) remove httpref.src entries for hidden or
  deleted resources.

- For 2.11.4 (modified)
  Include changes in 1.11, 1.12, 1.13, 1.14, 1.15, 1.16

- Bug 6400. Role selection from active roles only.

- Bug 6907
  "Exit Tool" button available to logout a session launched via deep link
  and escape iframe and redirect (for LTI-protected link).

- Typos

- First arg in lonnet::delenv is string, not anonymous hash ref.

- Bug 6907
  "Exit Tool" button available to logout a session launched via deep link
  and escape iframe and redirect (for LTI-protected link).

- Bug 6907
  - Set request.linkprotuser in %env for students accessing deep-linked items
    with LTI link protection which includes username from other LMS.
  - Set "only_body" for intermediate pages shown while session is being set up
    for LTI link-protected access.
  - Provide appropriate feedback when a deep link is followed but the user
    only has a future and/or expired role in the target course.

- For 2.11.4 (modified)
  Include changes in rev. 1.9 and rev. 1.10

- Bug 6907
  Remove request.deeplink.target, if set, when deeplink no longer in effect.

- Bug 6907 option to stop deep-linked items escaping iframe context.
  Seventh component (target) added to the deeplink parameter.
  Launch of deep-link (i.e. a tiny URL) sets $env{'request.deeplink.target'}.

- For 2.11.4 (modified)
  Remove code dependent on $env{'request.lti.login'} - only used in 2.12

- Bug 6907
  - Use of token to store linkprot or linkkey compatible with use of
    btoken and iptoken (for load balancing and IP change respectively).
  - Launching access from a deeplink, with its own ltoken and/or linkkey,
    for a user session originally launched from a different deeplink will
    update required session information.

- Bug 6907
  - Deep-linking when user has an existing LON-CAPA session, need to support
    case where role change is not needed, but course session update needed to
    enforce link protection (lti-based or key-based access control).

- For 2.11.2 (modified)
  LTI-specific code not needed.

- Check if course needs re-initialization (because of course change)
  when accessing resource via deep link uses default interval between
  checks (600 s).

- Bug 6400 Tiny URL for deep-linking.
  - For user's with an existing active session URL translation of deep link
    (i.e., /tiny/$domain/$uniqkey) moved from PerlTransHandler (lontrans.pm)
    to lontiny.pm.
  - Checks made to see if course session needs updating, and if so,
    lonuserstate::readmap() is called for top-level map.

- Bug 6754 LON-CAPA as LTI Provider
  - If LTI Consumer does not provide 'launch_presentation_document_target'
    set $env{'request.lti.target'} to iframe, if LON-CAPA display in iframe.

- Bug 6754 LON-CAPA as LTI Provider
  - For LTI session, no link to Roles/Courses page when tiny URL is invalid

- Bug 6754 LON-CAPA as LTI Provider
  - Original LTI launch of LON-CAPA is for a resource, a map, or an entire
    course, and display is for iframe, tab or window; retain this in %env.

- Bug 6400 Tiny URL for deep-linking.
  Requires Short::URL and String::CRC32 modules from CPAN. Dependency on
  perl-Short-URL needs to be added to LONCAPA-prerequisites.