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Chuck D with Fine Arts Militia - No Meaning No
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Autres articles (87)
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Keeping control of your media in your hands
13 avril 2011, parThe vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...) -
Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
Sur d’autres sites (7607)
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Your introduction to personally identifiable information : What is PII ?
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How to verify user permissions – Introducing the Piwik Platform
9 novembre 2014, par Thomas Steur — DevelopmentThis is the next post of our blog series where we introduce the capabilities of the Piwik platform (our previous post was How to make your plugin multilingual). This time you’ll learn how to verify user permissions. For this tutorial you will need to have basic knowledge of PHP and the Piwik platform.
When should a plugin verify permissions ?
Usually you want to do this before executing any action – such as deleting or fetching data – and before rendering any sensitive information that should not be accessible by everyone. For instance in an API method or Controller action. You sometimes also need to verify permissions before registering menu items or widgets.
How does Piwik’s user management work ?
It is quite simple as it only differentiates between a few roles : View permission, Admin permission and Super User permission. If you manage multiple websites with Piwik a user can be assigned to different roles as a user might have no permission for some websites but view or admin permission for another set of websites.
Worth mentioning is that roles inherit from each other. This means the role admin automatically includes the role view and a super user automatically covers the view and admin role.
Getting started
In this post, we assume that you have already set up your development environment and created a plugin. If not, visit the Piwik Developer Zone where you’ll find the tutorial Setting up Piwik and other Guides that help you to develop a plugin.
Verifying user permissions
To protect your data the platform offers many convenient methods in the \Piwik\Piwik class. There you will find methods that either start with
check
,is
orhas
. While methods that start withcheck
throw an exception in case a condition is not met, the other methods return a booleantrue
orfalse
.Use methods that throw an exception if you want to stop any further execution in case a user does not have an appropriate role. The platform will catch the exception and display an error message or ask the user to log in.
- public function deleteAllMessages()
- {
- // delete messages only if user has super user access, otherwise show an error message
- Piwik::checkUserSuperUserAccess();
- $this->getModel()->deleteAllMessages();
- }
Use methods that return a boolean for instance when registering menu items or widgets.
- public function configureAdminMenu(MenuAdmin $menu)
- {
- if (Piwik::hasUserSuperUserAccess()) {
- $menu->addPlatformItem('Plugins', $this->urlForDefaultAction());
- }
- }
It is important to be aware that just because the menu item won’t be displayed in the UI a user can still open the registered URL manually. Therefore you have to check for permissions in the actual controller action as well.
View permission
A user having a view permission should be only able to view reports but not make any changes apart from his personal settings. The methods that end with
UserHasSomeViewAccess
make sure a user has at least view permission for one website whereas the methods*UserHasViewAccess($idSites = array(1,2,3))
check whether a user has view access for all of the given websites.- Piwik::checkUserHasSomeViewAccess();
As a plugin developer you would usually use the latter example to verify the permissions for specific websites. Use the first example in case you develop something like an “All Websites Dashboard” where you only want to make sure the user has a view permission for at least one website.
Admin permission
A user having an admin permission cannot only view reports but also change website related settings. The methods to check for this role are similar to the ones before, just swap the term
View
withAdmin
.- Piwik::checkUserHasSomeAdminAccess();
Super user permission
A user having the super user permission is allowed to access all of the data stored in Piwik and change any settings. To check if a user has this role use one of the methods that end with
UserSuperUserAccess
.Piwik::checkUserHasSuperUserAccess();
As a plugin developer you would check for this permission for instance in places where your plugin shows an activity log over all users or where it offers the possibility to change any system wide settings.
Getting information about the currently logged in user
Sometimes you might want to know which user is currently logged in. This can be useful if you want to persist user related information in the database or if you want to send an email to the currently logged in user. You can easily get this information by calling the following methods :
- $login = Piwik::getCurrentUserLogin()
- $email = Piwik::getCurrentUserEmail()
Advanced features
Of course there is more that you can do. For instance you can verify whether a user is an anonymous user or whether a user has a specific role. You can also perform any operation in the context of a super user even if the current user does not have this role. Would you like to know more about those features ? Check out the Piwik class reference, the Security guide and the Manage Users user guide.
If you have any feedback regarding our APIs or our guides in the Developer Zone feel free to send it to us.
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Is it allowed to embed the ffmpeg.exe in my project ? [on hold]
22 juillet 2019, par Snowy WhiteI have written a program that, among other things, does some audio format converting. I use a library which in turn uses the ffmpeg.exe for this. So at the moment, the user needs to have ffmpeg in the same directory as the program itself. But what I would prefer is to add ffmpeg to my project as an embedded resource, so that the users don’t need to care about that. And now my question is, as I have seen that ffmpeg is licensed under LGPL, would it be legal to do so ? Or do the users explicitly have to get ffmpeg by themself ?
Thank you for any answers in advance !