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IMS/LTI plugin
===
Version 1.9.0
> This plugin is meant to be later integrated into Chamilo (in a major version
> release).
This plugin allows certified support for LTI 1.0, 1.1, 1.1.1, Deep Linking 1.x, Outcome Services 1.x.
You can get information about the LTI Certification on [this page][certification link].
The LTI 1.3 is being developed.
IMS/LTI defines the possibility to integrate tools or content into Chamilo.
This plugin allows the integration of a new tool into courses, obtaining
data back from those tools and recording them as gradebook "external" activities.
As a platform admin, you can register external tools available for all courses.
You need set the tools settings in the IMS/LTI administration page.
Then the registered tools should be added in each course individually.
As a teacher, you can register external tools available only for the current
course. You need follow the link in the IMS/LTI block located in the Course
Settings tool. Then select a tool registered previously or register a new
external tool.
# Installation
* Prepare your web server to allow to send cookies in all contexts, set the `SameSite` attribute to `None`
* i.e. Apache configuration
```apacheconf
Header edit Set-Cookie ^(.*)$ $1;HttpOnly;Secure;SameSite=None
```
1. Install the plugin from the Plugins page
2. Enable the plugin from the IMS/LTI Plugin Settings page
3. Assign to the Administrator region (in the regions management page)
# Changelog
## v1.9
> Requires DB changes to upgrade, see [v1.9](#to-v190).
* Add option to add LTI tool to sessions
## v1.8
> Requires DB changes to upgrade, see [v1.8](#to-v180).
* Add option to add replacements for launch params
## v1.7
> Requires DB changes to upgrade, see [v1.8](#to-v170).
* Fix auth params
* Add option to show LTI tool in iframe or new window.
## v1.6
> Requires DB changes to upgrade, see [v1.8](#to-v160).
* Add support to LTI 1.3 and Advantage Services
## v1.5
> Requires DB changes to upgrade, see [v1.8](#to-v151).
* Plugin has passed the tests from the LTI Certification suite.
* Add support for substitution of variable.
See `ImsLti::getSubstitutableParams()`.
* Outcome services has a unique URL and sourced ID.
## v1.4
> Requires DB changes to upgrade, see [v1.8](#to-v140).
* Allow create external tools when there is no key/secret available for launch
## v1.3
> Requires DB changes to upgrade, see [v1.8](#to-v130).
* Privacy settings added. Allow to indicate id the launcher's data
should be sent in request.
## v1.2
> Requires DB changes to upgrade, see [v1.8](#to-v120).
* Register course in which the tool was added.
* Register parent tool from which the new tool comes from.
## v1.1
> Requires DB changes to upgrade, see [v1.8](#to-v110).
* Support for Deep-Linking added.
* Support for outcomes services. And register score on course gradebook.
# Upgrading
Run this changes on database:
## To v1.9.0
```sql
ALTER TABLE plugin_ims_lti_tool
ADD session_id INT DEFAULT NULL;
ALTER TABLE plugin_ims_lti_tool
ADD CONSTRAINT FK_C5E47F7C613FECDF FOREIGN KEY (session_id) REFERENCES session (id);
CREATE INDEX IDX_C5E47F7C613FECDF ON plugin_ims_lti_tool (session_id);
```
## To v1.8.0
```sql
ALTER TABLE plugin_ims_lti_tool
ADD replacement_params LONGTEXT NOT NULL COMMENT '(DC2Type:json)';
```
## To v1.7.0
```sql
ALTER TABLE plugin_ims_lti_tool
ADD launch_presentation LONGTEXT NOT NULL COMMENT '(DC2Type:json)';
```
## To v1.6.0
```sql
CREATE TABLE plugin_ims_lti_platform
(
id INT AUTO_INCREMENT NOT NULL,
kid VARCHAR(255) NOT NULL,
public_key LONGTEXT NOT NULL,
private_key LONGTEXT NOT NULL,
PRIMARY KEY (id)
) DEFAULT CHARACTER SET utf8
COLLATE utf8_unicode_ci
ENGINE = InnoDB;
CREATE TABLE plugin_ims_lti_token
(
id INT AUTO_INCREMENT NOT NULL,
tool_id INT DEFAULT NULL,
scope LONGTEXT NOT NULL COMMENT '(DC2Type:json)',
hash VARCHAR(255) NOT NULL,
created_at INT NOT NULL,
expires_at INT NOT NULL,
INDEX IDX_F7B5692F8F7B22CC (tool_id),
PRIMARY KEY (id)
) DEFAULT CHARACTER SET utf8
COLLATE utf8_unicode_ci
ENGINE = InnoDB;
ALTER TABLE plugin_ims_lti_token
ADD CONSTRAINT FK_F7B5692F8F7B22CC FOREIGN KEY (tool_id) REFERENCES plugin_ims_lti_tool (id) ON DELETE CASCADE;
ALTER TABLE plugin_ims_lti_tool
ADD client_id VARCHAR(255) DEFAULT NULL,
ADD public_key LONGTEXT DEFAULT NULL,
ADD login_url VARCHAR(255) DEFAULT NULL,
ADD redirect_url VARCHAR(255) DEFAULT NULL,
ADD advantage_services LONGTEXT DEFAULT NULL COMMENT '(DC2Type:json)',
ADD version VARCHAR(255) DEFAULT 'lti1p1' NOT NULL;
CREATE TABLE plugin_ims_lti_lineitem
(
id INT AUTO_INCREMENT NOT NULL,
tool_id INT NOT NULL,
evaluation INT NOT NULL,
resource_id VARCHAR(255) DEFAULT NULL,
tag VARCHAR(255) DEFAULT NULL,
start_date DATETIME DEFAULT NULL,
end_date DATETIME DEFAULT NULL,
INDEX IDX_BA81BBF08F7B22CC (tool_id),
UNIQUE INDEX UNIQ_BA81BBF01323A575 (evaluation),
PRIMARY KEY (id)
) DEFAULT CHARACTER SET utf8
COLLATE utf8_unicode_ci
ENGINE = InnoDB;
ALTER TABLE plugin_ims_lti_lineitem
ADD CONSTRAINT FK_BA81BBF08F7B22CC FOREIGN KEY (tool_id) REFERENCES plugin_ims_lti_tool (id) ON DELETE CASCADE;
ALTER TABLE plugin_ims_lti_lineitem
ADD CONSTRAINT FK_BA81BBF01323A575 FOREIGN KEY (evaluation) REFERENCES gradebook_evaluation (id) ON DELETE CASCADE;
```
## To v1.5.1
```sql
ALTER TABLE plugin_ims_lti_tool
DROP FOREIGN KEY FK_C5E47F7C727ACA70,
ADD FOREIGN KEY (parent_id) REFERENCES plugin_ims_lti_tool (id) ON DELETE CASCADE ON UPDATE RESTRICT;
```
## To v1.4
```sql
ALTER TABLE plugin_ims_lti_tool
CHANGE consumer_key consumer_key VARCHAR(255) DEFAULT NULL,
CHANGE shared_secret shared_secret VARCHAR(255) DEFAULT NULL;
```
## To v1.3
```sql
ALTER TABLE plugin_ims_lti_tool
ADD privacy LONGTEXT DEFAULT NULL;
```
## To v1.2
```sql
ALTER TABLE plugin_ims_lti_tool
ADD c_id INT DEFAULT NULL;
ALTER TABLE plugin_ims_lti_tool
ADD CONSTRAINT FK_C5E47F7C91D79BD3 FOREIGN KEY (c_id) REFERENCES course (id);
CREATE INDEX IDX_C5E47F7C91D79BD3 ON plugin_ims_lti_tool (c_id);
ALTER TABLE plugin_ims_lti_tool
ADD parent_id INT DEFAULT NULL,
DROP is_global;
ALTER TABLE plugin_ims_lti_tool
ADD CONSTRAINT FK_C5E47F7C727ACA70 FOREIGN KEY (parent_id) REFERENCES plugin_ims_lti_tool (id);
CREATE INDEX IDX_C5E47F7C727ACA70 ON plugin_ims_lti_tool (parent_id);
```
## To v1.1
```sql
ALTER TABLE plugin_ims_lti_tool
ADD active_deep_linking TINYINT(1) DEFAULT '0' NOT NULL,
CHANGE id id INT AUTO_INCREMENT NOT NULL,
CHANGE launch_url launch_url VARCHAR(255) NOT NULL;
ALTER TABLE plugin_ims_lti_tool
ADD gradebook_eval_id INT DEFAULT NULL;
ALTER TABLE plugin_ims_lti_tool
ADD CONSTRAINT FK_C5E47F7C82F80D8B FOREIGN KEY (gradebook_eval_id) REFERENCES gradebook_evaluation (id) ON DELETE SET NULL;
CREATE INDEX IDX_C5E47F7C82F80D8B ON plugin_ims_lti_tool (gradebook_eval_id);
```
[certification link]: https://site.imsglobal.org/certifications/asociacion-chamilo/156616/chamilo+lms