Search results for tag #activitypub
With ActivityPub / ActivityStreams...
To me, it feels like there should have been something that is a common parent of both 'Object' and 'Link'.
That just had the "name", "nameMap", and "preview" fields (along with "id" and "type, of course) — since that is what 'Object' and 'Link' share in common.
I'll just call this common parent: 'Entity'.
...
It could have even been an opportunity to talk about how to handle unknown types.
In the #Fediverse, most software is built around a specific platform model. One for microblogging, one for video, one for photos... and new ones will keep coming.
With #Holos, your phone runs your own #ActivityPub server. You control your data and can use your own domain as your identity.
Built on the protocol, not a platform model, Holos is not limited to a single use case. One account that adapts to your needs.
That's where we're heading, and we hope for your support.
UPDATE: https://hub.vocalcat.com is open for public registration.
--
I’m building a new tool and looking for volunteers to test it! A #fediverse linktree.
It’s designed for two types of people:
Normies / newcomers – Think of it like a free, privacy-respecting Linktree. No trackers, no ads. But here's the cool part: it's a Trojan horse for the fediverse. Your profile link is itself an ActivityPub actor. That means people can interact with it directly in the fediverse, and it encourages exploration of open platforms.
Fediverse users, If you have multiple accounts (#Mastodon, #Pixelfed, Loops, a federated blog…), you know the struggle: sometimes you just want one persona to follow. This tool gives you that. It doesn’t post on its own (read-only), but it boosts all your other accounts and even has its own #ActivityPub inbox. PLUS it can receive and show your badges issued by @badgefed !
Interested in testing? Right now it only supports mastodon/gotosocial authentication, so if you have a mastodon or gotosocial account register a new account.
--
UPDATE: I am doing load testing at this point, if many people sign-up expect some unavailability moments. Thanks for your patience, I want to discover the limits of the stack.
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One webpage screenshot in white background and big letters saying Your links, Your Identity our Network
Alt...
A screenshot of links in rows, showing a profile with Pixelfed, Blog, Mastodon, LinkedIn links among others.
RE: https://mastodon.social/@reiver/112133984854710390
"A guide to implement ActivityPub in a static site (or any website)" by @mapache
https://maho.dev/2024/02/a-guide-to-implement-activitypub-in-a-static-site-or-any-website/
I suspect that there is an error in the Turtle specification, in the section shown in the screen-shot.
(It relates to JSON-LD, which ActivityPub / ActivityStreams is built on.)
I suspect that "PN_CHARS_BASE" is an error.
Because other parts of other specifications seem to not make sense if it is.
I suspect that maybe it should have been "PN_PREFIX" instead.
#ActivityPub #ActivityStreams #RDF #JSONLD
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2.6 RDF Blank Nodes
RDF blank nodes in Turtle are expressed as _: followed by a blank node label which is a series of name characters. The characters in the label are built upon PN_CHARS_BASE, liberalized as follows:
• The characters _ and digits may appear anywhere in a blank node label.
• The character . may appear anywhere except the first or last character.
• The characters -, U+00B7, U+0300 to U+036F and U+203F to U+2040 are permitted anywhere except the first character.
It is a lightweight, privacy-first Fediverse client for iOS, built around a simple idea: fast, small, predictable behavior, and first-class support for snac.
What makes it different:
• snac-first by design, not "compatible by accident"
• Works with all Mastodon API compatible software, including Mastodon, snac, GoToSocial, Akkoma, and others
• EXIF stripping on upload (HDR and orientation preserved)
• Optional on-device alt text generation via Apple Intelligence for your uploads and for images in your timeline
• Markdown posting for snac
• Granular notifications, grouping, multi-account
• Blocking and moderation tools
• Very small footprint, very low RAM usage
Alt text generation happens entirely on device via Apple APIs on supported hardware. Nothing is sent to external services.
It is built around my own workflow and priorities. It may not be for everyone, and that is perfectly fine.
Important note:
MastoBlaster will always be free for BSD Cafe users, illumos Cafe users, and for anyone connecting to a snac instance, including self-hosted ones.
The app is already usable, but this is still a test phase. I am looking for feedback, bug reports, and real-world usage insights.
TestFlight link:
https://testflight.apple.com/join/Pkxa5R1k
Stay tuned.
#MastoBlaster #iOS #Apple #Fediverse #Mastodon #snac #GoToSocial #Akkoma #ActivityPub
There is a larger discussion about fixed-point numbers versus floating-point numbers.
And that, ALL programming-languages should have fixed-point numbers built into them.
And that, programmers should be warned against using floating-point numbers in all but a set of very specialized situations — where inexact math is OK.
For most programmers in most situations inexact math is NOT OK. And, they should NOT use floating-point numbers.
This is likely (directly or indirectly) the fault of a single paragraph in IETF RFC-7159 / RFC-8259 (shown in the attached screen-shot).
(And note that, there is a difference between JSON and IETF JSON. JSON did not have this. IETF JSON does.)
That paragraph (in the IETF RFC) was NOT a requirement. But, others made it a requirement — including JSON-LD.
RE: https://mastodon.social/@reiver/115956356584464586
#ActivityPub #ActivityStreams #JSONLD #RFC7159 #RFC8259
![This specification allows implementations to set limits on the range and precision of numbers accepted. Since software that implements IEEE 754 binary64 (double precision) numbers [IEEE754] is generally available and widely used, good interoperability can be achieved by implementations that expect no more precision or range than these provide, in the sense that implementations will approximate JSON numbers within the expected precision. A JSON number such as 1E400 or 3.141592653589793238462643383279 may indicate potential interoperability problems, since it suggests that the software that created it expects receiving software to have greater capabilities for numeric magnitude and precision than is widely available.](https://files.mastodon.social/media_attachments/files/116/115/591/179/625/618/original/23d4cdfb3d03fcd9.png "This specification allows implementations to set limits on the range and precision of numbers accepted. Since software that implements IEEE 754 binary64 (double precision) numbers [IEEE754] is generally available and widely used, good interoperability can be achieved by implementations that expect no more precision or range than these provide, in the sense that implementations will approximate JSON numbers within the expected precision. A JSON number such as 1E400 or 3.141592653589793238462643383279 may indicate potential interoperability problems, since it suggests that the software that created it expects receiving software to have greater capabilities for numeric magnitude and precision than is widely available.")
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This specification allows implementations to set limits on the range and precision of numbers accepted. Since software that implements IEEE 754 binary64 (double precision) numbers [IEEE754] is generally available and widely used, good interoperability can be achieved by implementations that expect no more precision or range than these provide, in the sense that implementations will approximate JSON numbers within the expected precision. A JSON number such as 1E400 or 3.141592653589793238462643383279 may indicate potential interoperability problems, since it suggests that the software that created it expects receiving software to have greater capabilities for numeric magnitude and precision than is widely available.
This is from the JSON-LD spec.
ActivityPub / ActivityStream are based on JSON-LD.
I think it was a very bad idea for JSON-LD to define "number" this way!
It makes it so numbers with fractional values are inexact & lossy.
This include values that are common for money.
For example, neither 0.10 and 0.20 can be represented exactly. So, 0.10 + 0.20 does NOT equal 0.30!
It should have used FIXED-point numbers rather than FLOATING-point.
#ActivityPub #ActivityStreams #JSONLD #RFC7159 #RFC8259
![number
In the JSON serialization, a number is similar to that used in most programming languages, except that the octal and hexadecimal formats are not used and that leading zeros are not allowed. In the internal representation, a number is equivalent to either a long or double, depending on if the number has a non-zero fractional part (see [WEBIDL]).](https://files.mastodon.social/media_attachments/files/116/115/532/009/836/539/original/5d2ac605cf834ed1.png "number
In the JSON serialization, a number is similar to that used in most programming languages, except that the octal and hexadecimal formats are not used and that leading zeros are not allowed. In the internal representation, a number is equivalent to either a long or double, depending on if the number has a non-zero fractional part (see [WEBIDL]).")
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number
In the JSON serialization, a number is similar to that used in most programming languages, except that the octal and hexadecimal formats are not used and that leading zeros are not allowed. In the internal representation, a number is equivalent to either a long or double, depending on if the number has a non-zero fractional part (see [WEBIDL]).
In the old blogging software I created back in the 1990s, I had a handful of posts types
There was a type of rich-text oriented post that had a title. (Article)
And, there way another type of rich-text oriented post that did not have a title. (Note)
(There were also other types of posts, but they aren't relevant here)
These 2 types of posts were rendered / displayed differently
I.e., my 1990s software already had this distinction
I've seen an ongoing debate between "Note" versus "Article" in ActivityPub / ActivityStreams.
When is something a "Note"‽
When is something an "Article"‽
Personally — I would probably have made the distinction this way.
An "Article" has a title.
A "Note" doesn't have a title.
(In ActivityPub / ActivityStreams, a 'title' seems to tend to get represented in the "name" field.)
number of files generated by snac is huge, but i don't care that much anymore.
$ du -hd0 /var/snaci like snac a lot: i run my own server and client, i can modify css (and i do tweak it often, i can modify the source code---didn't get to that yet ;)
133M /var/snac
$ find /var/snac | wc -l
35603
sometimes i use snac command line, but mostly snac web ui and nothing else.
someday maybe i'll try to build some minimalist #activitypub server, but looks like a lot of work :)
see also
activitypub-single-php-file by @Edent@mastodon.social
In *theory* you should be able to follow this test user:
@你好@i18n.viii.fi
But I can't find any Fediverse software which actually supports non-ASCII usernames.
If you are able to see the user, its description, and its avatar - please send me a screenshot 🙂
@ocdtrekkie @badgefed and hey, if we can help to do that backpack badgefed compatible (which is really #activitypub + #openbadges) lmk
EDIT: Build 68 should also run on iOS 18.x but it currently crashes. I'll see if I can fix it.
After quite some time, I’m finally ready to share this.
MastoBlaster is now available in public testing on TestFlight.
It is a lightweight, privacy-first Fediverse client for iOS, built around a simple idea: fast, small, predictable behavior, and first-class support for snac.
What makes it different:
• snac-first by design, not "compatible by accident"
• Works with all Mastodon API compatible software, including Mastodon, snac, GoToSocial, Akkoma, and others
• EXIF stripping on upload (HDR and orientation preserved)
• Optional on-device alt text generation via Apple Intelligence for your uploads and for images in your timeline
• Markdown posting for snac
• Granular notifications, grouping, multi-account
• Blocking and moderation tools
• Very small footprint, very low RAM usage
Alt text generation happens entirely on device via Apple APIs on supported hardware. Nothing is sent to external services.
It is built around my own workflow and priorities. It may not be for everyone, and that is perfectly fine.
Important note:
MastoBlaster will always be free for BSD Cafe users, illumos Cafe users, and for anyone connecting to a snac instance, including self-hosted ones.
The app is already usable, but this is still a test phase. I am looking for feedback, bug reports, and real-world usage insights.
TestFlight link:
https://testflight.apple.com/join/Pkxa5R1k
Stay tuned.
#MastoBlaster #iOS #Fediverse #Mastodon #snac #snac2 #Akkoma #GoToSocial #ActivityPub #OwnYourData
Minor tweak to improve signature key retrieving for some Wordpress configurations.
Fixed web UI incorrect links to actor public pages for some configurations.
Fixed mismatch in the accounts being followed number in the public and people pages.
Notifications can be filtered by category (contributed by byte).
Dates are shown adjusted to the account's time zone (contributed by dandelions).
Configurable limit for poll items (contributed by dandelions).
Fixed incorrect scope when editing a post (contributed by dandelions).
Change the strip_exif logic to work with the already existing OpenBSD sandbox (contributed by oxzi).
Mastodon API: Add poll creation (contributed by davidrv00), fixed a voting bug (contributed by davidrv00), added a fix to verify_credentials (contributed by ag-eitilt).
Updated Czech, German, Brazilian Portuguese, Spanish translations (contributed by pmjv, zen, daltux).
If you find #snac useful, please consider buying grunfink a coffee or contributing via LiberaPay.
Quoted posts are now shown.
Added metadata to remote users in the people page (contributed by dandelions).
Fixed memory leak (contributed by dandelions).
Fixed user matching (contributed by rakoo).
Rendering visibility conditionally, with lesser reach if needed (contributed by byte).
Added a button next to a follow notification to follow back.
Fixed typo in man page (contributed by spky).
Updated Czech and German translations (contributed by pmjv and zen).
If you find #snac useful, please consider buying grunfink a coffee or contributing via LiberaPay.
RE: https://colours.bots.edent.tel/posts/68d87379-8e35-18be-b901-2730376a090d.json
Ok, I need some #ActivityPub help, please.
The reply to this will have links to the QuoteRequest the bot received, the QuoteAuthorization which it saves, and the Accept message it returns.
Can anyone figure out why the Quote permissions aren't showing on external servers?
Added support for scheduled posts (for this to work correctly, users will have to set their time zone, see below).
The user can now select a working time zone. This will be used to correctly parse the local date and time of a scheduled post.
Fixed incorrect poll vote format, which was causing problems in platforms like GotoSocial.
Mastodon API: added support for /api/v1/instance/peers.
Added a new snac-admin helper script (contributed by shtrophic).
In the web UI, posts are separated by the <hr hidden> tag; it's invisible in graphical browsers, but it separates post clearly in text-based browsers.
Some Finnish, Spanish, Czech and Russian translation updates and fixes.
If you find #snac useful, please consider buying grunfink a coffee or contributing via LiberaPay.
This release has been inspired by the song Pictures on the Wall by #MichelleGurevich.
You, people, are GREAT. Thank you very much.
https://comam.es/snac/eschaton
De la mano del muchache creador de #snac, y su inagotable optimismo con el amor y la vida, nos llega ahora una instancia #activitypub para saber si llega o no llega el meteorito de las narices.
Added support for subscribing to LitePub (Pleroma-style) Fediverse Relays like e.g. https://fedi-relay.gyptazy.com to improve federation. See snac(8) (the Administrator Manual) for more information on how to use this feature.
Added support for following hashtags. This is only useful if your instance is subscribed to relays (see above).
Added support for a Mastodon-like /authorize_interaction webpoint entry, that allows following, liking and boosting from another account's Mastodon public web interface. To be able to use it, you must reconfigure your https proxy to redirect /authorize_interaction to snac (see snac(8)).
Some fixes to accept Event objects properly (like those coming from implementations like https://gancio.org/ or https://mobilizon.fr).
Added some caching for local Actor objects.
Hashtags that are not explicitly linked in a post's content are shown below it.
Fixed broken NetBSD build (missing dependency in Makefile.NetBSD).
The user profile can now include longitude and latitude data for your current location.
Mastodon API: implemented limit= on notification fetches (contributed by nowster), implemented faster min_id handling (contributed by nowster), obey the quiet public visibility set for posts, other timeline improvements (contributed by nowster).
Reduced RSA key size for new users from 4096 to 2048. This will be friendlier to smaller machines, and everybody else out there is using 2048.
If the SNAC_BASEDIR environment variable is defined and set to the base directory of your installation, you don't have to include the base directory in the command line.
Fixed a bug in the generation of the top page (contributed by an-im-dugud).
Added support for Markdown headers and underlining (contributed by an-im-dugud).
If you find #snac useful, please consider contributing via LiberaPay: https://liberapay.com/grunfink/
This release has been inspired by the song Nine Hundred Miles by #BarbaraDane.
Fixed regression in link verification code (contributed by nowster).
Added ipv6 support for the https frontend connection (contributed by hb9hnt).
New "Like by URL" operation (contributed by dheadshot).
Added support for a Mastodon-like /share link sharing URL, like the one provided by sites like https://mastodonshare.com/ and such. To be able to use it, you must reconfigure your https proxy to redirect /share to snac (see snac(8)).
New linux landlock (sandboxing) support for enhanced security (contributed by shtrophic). It's still a bit experimental, so you have to enable it explicitly by recompiling with the WITH_LINUX_SANDBOX directive (e.g. make CFLAGS=-DWITH_LINUX_SANDBOX).
Some search fixes regarding repeated matches.
The export_csv cmdline operation now exports the CSV files inside a user's export/ subdirectory instead of the current directory.
All CSV files to be imported must now be stored inside a user's import/ subdirectory instead of the current directory.
Mastodon API: more timeline paging tunings (contributed by nowster), post language selected in apps is properly set.
The command-line operation note new reads the LANG environment variable to set the post's language.
A new command-line operation, note_unlisted, allows posting "unlisted" or "quiet public" posts.
The maximum number of entries in users' RSS feeds and in outboxes can now be set via the max_public_entries variable in the server.json file.
Fixed broken support for Audio objects.
Made xmpp and mailto URLs clickable.
If you find #snac useful, please consider contributing via LiberaPay: https://liberapay.com/grunfink/
This release has been inspired by the painting Judith Slaying Holofernes by #ArtemisiaGentileschi.
Added a new user option to disable automatic follow confirmations (follow requests must be manually approved from the people page).
The search box also searches for accounts (via webfinger).
New command-line action import_list, to import a Mastodon list in CSV format (so that Mastodon Follow Packs can be directly used).
New command-line action import_block_list, to import a Mastodon list of accounts to be blocked in CSV format.
If you find #snac useful, please consider contributing via LiberaPay: https://liberapay.com/grunfink/
The server can now act as a proxy for all image, audio or video media coming from other account's posts (both from the Web UI and the Mastodon API). This way, other servers will see media requests coming from the server IP, not the user's, improving privacy. This is controlled by setting the proxy_media boolean field to server.json to true.
The strict_public_timelines option introduced in the previous release now works correctly.
Fixed a crash when posting from the links browser.
Fixed some repeated images from Lemmy posts.
Fixed a crash when posting an image from the tooot mobile app.
Updated FreeBSD rc script: the server process is now managed by the daemon(8) utility (contributed by @stefano@bsd.cafe).
RSS feeds are now in 2.0 version instead of 0.91.
If you find #snac useful, please consider contributing via LiberaPay: https://liberapay.com/grunfink/donate
This release has been inspired by the song New Moon (Dark Phase) by #DuranDuran.
Migration from a Mastodon account to a snac one has been implemented. Please see snac(8) (the administrator manual) for more information.
Mastodon API: fixed timelines/public (it was showing less posts that it should).
Fixed over-zealous caching to the public timeline.
Some HTML tweaks and fixes to the web interface.
If you find #snac useful, please consider buying grunfink a coffee: https://ko-fi.com/grunfink
This release has been inspired by the painting The Hands Resist Him by #BillStoneham.
Support for custom Emojis has been added; they are no longer hardcoded, but read from the emojis.json file at the server base directory. Also, they are no longer limited to string substitutions, but images as external URLs are also supported (see snac(8) for more information).
Fixed a bug that caused some notifications to be lost when coming from a user in the same instance.
Added an additional check for blocked instances (sometimes, posts from blocked sites that were ancestors of legit posts were 'leaking' into the timeline).
On OpenBSD, if the disable_email_notifications server flag is set to true, unveil() is not called for the execution of the /usr/sbin/sendmail binary and pledge() doesn't set the exec promise.
If you find #snac useful, please consider buying grunfink a coffee: https://ko-fi.com/grunfink
This release has been inspired by the album Eternal Embers by #Meltt.
Part 3 of "A Guide to Implementing ActivityPub in a Static Site (or Any Website)" is just out the oven!
In this blog post, I explain how to make your blog discoverable in the Fediverse as an account, and also address some of the annoying pitfalls I encountered.
Full article here: https://maho.dev/2024/02/a-guide-to-implementing-activitypub-in-a-static-site-or-any-website-part-3/
If you like it don't forget to follow the @blog !
#fediverse #activitypub #static-sites #hugo #azure #mastodon #web-development #social-web #webfinger #http