[!IMPORTANT] Since version 0.9.0 , elfeed-protocol use variable elfeed-protocol-feeds instead of elfeed-feeds to fix conflict issues to extensions that modify or require elfeed-feeds. And elfeed-protocol could work together with elfeed-org and elfeed-autotag without any aditional setup now.

elfeed-protocol

Provide extra protocols to make self-hosting RSS readers work with elfeed, including Fever, NewsBlur, Nextcloud/ownCloud News, Tiny Tiny RSS and even more.

Installation through MELPA

;; Install through package manager
M-x package-install <ENTER>
elfeed-protocol <ENTER>

Initialization

Setup elfeed-protocol, then switch to search view and and press G to update entries:

;; curl recommend
(setq elfeed-use-curl t)
(elfeed-set-timeout 36000)
(setq elfeed-curl-extra-arguments '("--insecure")) ;necessary for https without a trust certificate

;; setup feeds
(setq elfeed-protocol-feeds '(("owncloud+https://user@myhost.com"
                               :password "my-password")))

;; enable elfeed-protocol
(setq elfeed-protocol-enabled-protocols '(fever newsblur owncloud ttrss))
(elfeed-protocol-enable)

Protocol Details

fever (Fever)

1. Fetch articles with the entry ID one by one by default. For some service that don't provide valid entry ID like FressRSS, just set elfeed-protocol-fever-update-unread-only to t as a workaround
2. Fetch remote category as tag
3. Support sync unread, starred(saved) tags, the starred tag name defined in elfeed-protocol-fever-star-tag which default value is star
4. Support multiple fetching methods:
   • elfeed-protocol-fever-update-older
   • elfeed-protocol-fever-update-star

NOTE: Many self-hosted RSS server provide Fever API, and user must provide the URL manually. Here is a list of Fever API URLs I collected for some popular RSS servers:

• Tiny Tiny RSS's Fever plugin

  https://your-ttrss-server/plugins/fever/

• FreshRSS

  https://your-freshrss-server/api/fever.php

• miniflux

  https://your-miniflux-server/fever/

Example:

(setq elfeed-protocol-fever-update-unread-only nil)
(setq elfeed-protocol-fever-fetch-category-as-tag t)
(setq elfeed-protocol-feeds '(("fever+https://user@myhost.com"
                               :api-url "https://myhost.com/plugins/fever/"
                               :password "my-password")))

newsblur (NewsBlur)

1. Fetch articles from recent pages
2. Fetch articles for special feed
3. Fetch remote category as tag
4. Fetch tags in remote
5. Support sync unread, starred(saved) tags, the starred tag name defined in elfeed-protocol-ttrss-star-tag which default value is star

NOTE: A file for storing session cookies has to be specified via elfeed-curl-extra-arguments like in the following example.

Example:

(setq elfeed-protocol-newsblur-maxpages 20)
(setq elfeed-protocol-newsblur-fetch-tags t)
(setq elfeed-protocol-newsblur-fetch-category-as-tag t)
(setq elfeed-protocol-newsblur-sub-category-separator "/")
(setq elfeed-curl-extra-arguments '("--cookie-jar" "/tmp/newsblur-cookie"
                                    "--cookie" "/tmp/newsblur-cookie"))
(setq elfeed-protocol-feeds '(("newsblur+https://user@newsblur.com"
                               :password "my-password")))

owncloud (ownCloud News)

1. Fetch articles with the modified time by default
2. Fetch articles for special feed
3. Fetch remote category as tag
4. Support sync unread and starred tags, the starred tag name defined in elfeed-protocol-owncloud-star-tag which default value is star. For example, if user add star tag to one article, the star stat will be sync to server, too
5. Support multiple fetching methods:
   • elfeed-protocol-owncloud-update-since-timestamp
   • elfeed-protocol-owncloud-update-since-id
   • elfeed-protocol-owncloud-update-older

Example:

(setq elfeed-protocol-owncloud-maxsize 1000)
(setq elfeed-protocol-owncloud-update-with-modified-time t)
(setq elfeed-protocol-owncloud-fetch-category-as-tag t)
(setq elfeed-protocol-feeds '(("owncloud+https://user@myhost.com"
                               :password "my-password")))

ttrss (Tiny Tiny RSS, requires version: 1.7.6)

1. Fetch articles by the entry ID
2. Fetch articles for special feed
3. Fetch remote category as tag
4. Support sync unread, starred and published tags, the starred tag name defined in elfeed-protocol-ttrss-star-tag which default value is star, and the published tag name defined in elfeed-protocol-ttrss-publish-tag which default value is publish
5. Support multiple fetching methods:
   • elfeed-protocol-ttrss-update-older
   • elfeed-protocol-ttrss-update-star

NOTE: For Tiny Tiny RSS only allow fetch Maximize 200 entries each time, so if your own much more starred entries, just run elfeed-protocol-ttrss-update-star manually to fetch them all

Example:

(setq elfeed-protocol-ttrss-maxsize 200) ; bigger than 200 is invalid
(setq elfeed-protocol-ttrss-fetch-category-as-tag t)
(setq elfeed-protocol-feeds '(("ttrss+https://user@myhost.com"
                               :password "my-password")))

Extra settings

All example formats for elfeed-protocol-feeds

(setq elfeed-protocol-feeds '(
                              ;; same format with elfeed-feeds
                              "http://foo/"
                              ("http://baz/" comic)

                              ;; format 1
                              "owncloud+https://user:pass@myhost.com"

                              ;; format 2, for username or password with special characters
                              ("owncloud+https://user@domain.com@myhost.com"
                               :password "password/with|special@characters:")

                              ;; format 3, for password in file
                              ("owncloud+https://user@myhost.com"
                               :password-file "~/.password")

                              ;; format 4, for password in .authinfo,
                              ;; ensure (auth-source-search :host "myhost.com" :port "443" :user "user4") exists
                              ("owncloud+https://user@myhost.com"
                               :use-authinfo t)

                              ;; format 5, for password in gnome-keyring
                              ("owncloud+https://user@myhost.com"
                               :password (shell-command-to-string "echo -n `secret-tool lookup attribute value`"))

                              ;; format 6, for password in pass(1), using password-store.el
                              ("owncloud+https://user@myhost.com"
                               :password (password-store-get "owncloud/app-pass"))

                              ;; use autotags
                              ("owncloud+https://user@myhost.com"
                               :password "password"
                               :autotags (("example.com" comic)))))

Work with feeds and autotags that defined in original elfeed-feeds

(setq elfeed-feeds '("http://foo/" ("http://baz/" comic)))
(setq elfeed-protocol-feeds '(("owncloud+https://user@myhost.com"
                               :password "my-password")))
(setq elfeed-protocol-feeds (append elfeed-protocol-feeds elfeed-feeds))

Work with elfeed-org and elfeed-autotag

Since version 0.9.0, elfeed-protocol could work together with elfeed-org and elfeed-autotag without any aditional setup.

Work with elfeed-summary

To fix 0 / 0 zero count issue for all feeds, just active the following advice for rmh-elfeed-org-export-feed:

(defun elfeed-protocol-advice-rmh-elfeed-org-export-feed (headline)
 "Advice for `rmh-elfeed-org-export-feed', add elfeed-protocol ID as suffix for each feed."
  (let* ((url (car headline))
         (proto-id (car (elfeed-protocol-feed-list))))
    (when proto-id
      (setcar headline (elfeed-protocol-format-subfeed-id proto-id url)))))
(advice-add 'rmh-elfeed-org-export-feed :before #'elfeed-protocol-advice-rmh-elfeed-org-export-feed)

Besides, don't use elfeed-summary-update to fetach articles, use elfeed-update instead, and press r to refresh UI manually:

(define-key elfeed-summary-mode-map (kbd "R") #'elfeed-update)

Run Unit-Tests

Install cask system package firstly, and then run following commands

make init
make test
make checkdoc
make elint
make package-lint

Deploy Services for Testing

Nextcloud/ownCloud News

1. Fetch docker image and run it

   docker pull nextcloud
   docker run --rm -p 80:80 nextcloud

2. Open http://127.0.0.1 in browser to setup Nextcloud

   1. Create admin user and select database to SQLite, then press "Finish setup"
   2. Press left top popup menu and select "+Apps", select "Multimedia", and enable the "News" app
   3. Press left top popup menu and switch to "News" app, then subscribe some feeds

3. Setup elfeed-protocol

   (setq elfeed-protocol-feeds '("owncloud+http://<admin>:<password>@localhost"))

Tiny Tiny RSS

1. Fetch related docker images and run them

   docker pull clue/ttrss
   docker pull nornagon/postgres
   docker run --rm -d --name ttrssdb nornagon/postgres
   docker run --rm --link ttrssdb:db -p 80:80 clue/ttrss

2. Open http://127.0.0.1 in browser to setup Tiny Tiny RSS

   1. Use the default admin:password authorization info to login
   2. Enter "Preferences" page to enable "Enable API access" and save configuration

3. Setup elfeed-protocol

   (setq elfeed-protocol-feeds '("ttrss+http://admin:password@localhost"))

Report Issues

Please collect logs in buffer *elfeed-log* with the following config before reporting issues:

(setq elfeed-log-level 'debug)
(toggle-debug-on-error)

;; for more logs
(setq elfeed-protocol-log-trace t)
(setq elfeed-protocol-fever-maxsize 10)
(setq elfeed-protocol-newsblur-maxpages 1)
(setq elfeed-protocol-owncloud-maxsize 10)
(setq elfeed-protocol-ttrss-maxsize 10)

Q&A

1. When I run elfeed-update I get the error: elfeed-protocol-feeds malformed, bad entry

   Don't forget to enable elfeed-protocol at first:

   (elfeed-protocol-enable)

2. Not working if my password contains special characters like @#$/:.

   Use format 2 instead in previous example for complex password:

   ;; format 2, for password with special characters
   ("owncloud+https://user@myhost.com"
   :password "password/with|special@characters:")

3. How to fetch my older headlines in server?

   fever, owncloud and ttrss protocol provide method to fetch older headlines. And the update operations could not executed in the same time, so run-at-time with some delays(for example 15s) will help you:

   (setq my-elfeed-update-timer
        (run-at-time 15 15
                     (lambda () (when (= elfeed-curl-queue-active 0)
                                  (elfeed-protocol-ttrss-update-older "ttrss+https://user@host")))))
   (cancel-timer my-elfeed-update-timer)

4. Why the articles still are unread even they were mark read in other client?

   Well, only ownCloud News API support two-way synchronization for it fetch articles with modified time. And other API only fetch articles id by id. So your issue just the desired result~

   However here is a workaround. For example fever, you could reset the update mark so it will re-fetch the last 1000 articles in following updates and will sync the read state:

   (let* ((proto-id "fever+https://user@miniflux-host")
         (last-id (elfeed-protocol-fever-get-update-mark proto-id 'update)))
    (elfeed-protocol-fever-set-update-mark  proto-id 'update (- last-id 1000)))

   And Fever limit 50 max size for per request, so update timer may help you:

   (run-at-time 300 300
               (lambda () (when (= elfeed-curl-queue-active 0)
                            (elfeed-update))))

   Or you could use elfeed-untag-1 mark all selected articles as read(will not call curl process) then execute elfeed-protocol-fever-reinit fetch all unread articles:

   (cl-loop for entry in (elfeed-search-selected)
           do (elfeed-untag-1 entry 'unread))

   Hope helps.

5. Sometimes emacs may be blocked if the parsing downloaded articles is too large, for example >50MB.

   This is caused by the known emacs bug that CPU will be in high usage if a text line is too long. There three methods to workaround this:

   1. Method 1, limit the download size, for example:

      (setq elfeed-protocol-owncloud-maxsize 1000)

   2. Method 2, for ownCloud, just update articles since special entry ID instead the modified time, this could run multiple times to keep up to date to avoid download too large entries once time

      M-x elfeed-protocol-owncloud-update-since-id

   3. Method 3, some protocol provide update method to reset the last modified time to skip some data, for example:

      M-x elfeed-protocol-owncloud-update-since-timestamp

Donation

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License

Released under the terms of the GNU GPLv3+.