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Plone add-on to host add-ons / extensions of a software

Project description



  • The add-on has a cofiguration settings entry in the site administration yet. It’s form contains fields to set a choice of categories, platforms, licenses and versions of the product (for which the add-on is used). There are also fields to set the allowed file extensions of the add-on files, the image files (e.g. screenshots, logos) and the documentation.

  • A add-on center with listing and display of template projects respectively to their rating, a search form and a listing of the latest projects.

  • The add-on center edit form contains fields to set the title of the center and the name of the add-ons and add a description of the center.

  • Inside the add-on center contributors could create add-on projects. The edit form of the project contains fields to choose the categories.

  • The contributor could add releases and linked releases to the add-on project.

  • The release contains fields to upload files.

  • The linked release provide fields for links to the release files.

  • Both, release and linked release, contains fields to choose the product version, platform and licenses.

  • The add-on send message once a new project was added. It push a message too, once a project was submitted for publication. It send an email to the project contact address for every change in the workflow status of the project.

  • The add-on informs the contributor via email about new releases or linked releases, once they were added to his project(s).

  • The user could send a message to the author of an add-on via a mail. The mail form uses a honeypot field and the collective.honeypot technology to protect the form. The contact data of the author of the addon will not be made public.

  • The file extensions of the uploaded add-ons will be checked. It is possible to set the allowed file extensions distinct for the specific use case of the add-on center. They could be dynamically changed at any time.

  • The add-on sends messages to the project contact email on every edit of the add-on center’s product versions field (thus the contributors could potentially add this new product version to their release / linked release).


This add-on can be seen in action at the following sites:


Full documentation for end users is available in the “docs” folder


This product has been translated into

  • German (Andreas Mantke)


Install collective.addons by adding it to your buildout:



eggs =

and then running bin/buildout



If you are having issues, please let us know. Please create an issue in the project issue tracker (see above).


The project is licensed under the GPLv2.



3.2 (2021-09-29)

  • Use Products.PrintingMailHost version 1.1.6 [Andreas Mantke]

  • Add classifiers for Python 3.8. and 3.9 [Andreas Mantke]

  • Update localization files [Andreas Mantke]

2.7 (2021-09-25)

  • Use Products.PrintingMailHost version 1.1.6 [Andreas Mantke]

  • Add classifiers for Python 3.8. and 3.9 [Andreas Mantke]

  • Update localization files [Andreas Mantke]

3.1 (2021-08-10)

  • flake8 fixes [Andreas Mantke]

  • Update localization files [Andreas Mantke]

3.0 (2021-08-10)

  • Change the main release number to 3.x because this version breaks compatibility due to move to honeypot instead of captcha technology to protect mail forms. [Andreas Mantke]

  • Update README with information about honeypot technology [Andreas Mantke]

  • Add contactauthor and contactprojectowner module with honeypot technology to protect against robots, add collective.honeypot to the requirements. [Andreas Mantke]

  • Add configuration for collective.honeypot to the buildout script. [Andreas Mantke]

  • Remove mailtoauthor and mailtoprojectowner modules with hcaptcha technology and plone.formwidget.hcaptcha from the requirements. [Andreas Mantke]

  • Add configuration for collective.honeypot to base.cfg [Andreas Mantke]

2.6 (2021-08-06)

  • Add PrintingMailHost to the buildout script [Andreas Mantke]

  • Update readme and add information about using hcaptcha instead of recaptcha [Andreas Mantke]

2.5 (2021-07-23)

  • Add PloneHotfix20210518 to the buildout [Andreas Mantke]

  • Migrate contact forms from recaptcha to hcaptcha [Andreas Mantke]

  • Update localization files and German localization [Andreas Mantke]

  • Remove plone.formwidget.recaptcha from the buildout and replace it with plone.formwidget.hcaptcha [Andreas Mantke]

2.4 (2020-11-11)

  • Text fixes in addoncenter view template [Andreas Mantke]

  • Add listing of the number of projects per category to the sidebar of the addoncenter view template [Andreas Mantke]

  • Update localization files [Andreas Mantke]

2.3 (2020-09-19)

  • Reordering view templates and move them to one new folder [Andreas Mantke]

  • Update localization files [Andreas Mantke]

2.2 (2020-08-02)

  • Add a file extension validator for linked add-on releases. [Andreas Mantke]

2.1 (2020-07-27)

  • Use safe_unicode for unicode strings, make more labels translatable [Andreas Mantke]

  • Update README.rst [Andreas Mantke]

  • Update localization files and German localization [Andreas Mantke]

2.0 (2020-07-24)

  • Add a controlpanel and move configuration entries from the addoncenter module to this panel, create new vocabulary and functions from this entries in the configuration registry instead of entries in the portal_catalog, register vocabularies as named utilities in the configure.zcml file, use the new functions (inside the common module) for the project and (linked) release creation / edit form and their views as well as for the search feature of the addon center module. [Andreas Mantke]

  • Update localization files and German localization [Andreas Mantke]

  • Adapt the user documentation to the new functions and structure of the add-on and create documentation in html and pdf file format [Andreas Mantke]

1.2 (2020-05-07)

  • Fix a tal expression on the addon release view. [Andreas Mantke]

  • Add new fields to choose, in username and /or e-mail address of a project owner / contact should be published and save the choice in the portal_catalog. [Andreas Mantke]

  • Update localization files and add German localization for new strings [Andreas Mantke]

1.1 (2020-03-28)

  • Fix formating and text issues in the users docomentation, add information about buildout entries and update documentation in HTML and PDF file format. [Andreas Mantke]

  • Include documentation txt-files into the the [Andreas Mantke]

  • Add versions to test_plone52.cfg [Andreas Mantke]

  • Fix travis.yml [Andreas Mantke]

  • Add a new module for a contact with the project owner, add a link to the mail forms from addon project respective the addon center view. [Andreas Mantke]

  • Fix two URLs in [Andreas Mantke]

  • Add a subscriber for messaging about new project added [Andreas Mantke]

  • Update localization files [Andreas Mantke]

1.0 (2019-11-16)

  • Complete user documentation [Andreas Mantke]

  • Flake8 fixes [Andreas Mantke]

  • Add a custom.css for creating documentation in HTML file format [Andresa Mantke]

1.0b2 (2019-11-03)

  • Add user documentation [Andreas Mantke]

  • Add further directories to .gitignore [Andreas Mantke]

1.0b0 (2019-09-11)

  • Made additions to travis.yml to get the robot test running successfully [Andreas Mantke]

  • Update the Readme and add more features of the add-on [Andreas Mantke]

  • Change the name of the field for the add-on project contact address [Andreas Mantke]

  • Flake8 fixes [Andreas Mantke]

1.0a4 (2019-09-03)

  • Pep8 and other code fixes [Andreas Mantke]

  • Move from api.portal.get_tool to api.content.find for portal_catalog searches [Andreas Mantke]

  • Move from checkpermission to api.user.has_permission [Andreas Mantke]

  • Fix the message to sender in the mailtoauthor form [Andreas Mantke]

  • Add further dependencies to the install_requirements section of the script [Andreas Mantke]

  • Add include dependencies of the package to configure.zcml [Andreas Mantke]

  • Remove test for Plone 4.3 from travis.yml [Andreas Mantke]

  • Update localization files [Andreas Mantke]

1.0a3 (2019-08-23)

  • Pep8, isort and code-analysis fixes. [Andreas Mantke]

1.0b1 (2019-08-23)

  • Add notifications module [Andreas Mantke]

  • Fix css-class names in addonrelease and addonlinkedrelease view [Andreas Mantke]

  • Move a css inline style to the style sheet file [Andreas Mantke]

  • Pep8 fixes [Andreas Mantke]

  • Update localization template file and localization files, update German translation. [Andreas Mantke

1.0a2 (2019-08-16)

  • Fix regular expressions for file extension validation [Andreas Mantke]

  • Add import for Invalid to the addoncenter module [Andreas Mantke]

  • Add necessary imports for virus scanning with collective.clamaav [Andreas Mantke]

  • Fix title strings and field namings [Andreas Mantke]

  • Update localization template file and localization files and add the missing German localization strings [Andreas Mantke]

1.0a1 (2019-08-13)

  • Initial release. [andreasma]

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