zot protocol update
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Friendika
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2 changed files with 93 additions and 33 deletions
2
boot.php
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boot.php
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@ -8,7 +8,7 @@ require_once("include/pgettext.php");
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require_once('include/nav.php');
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define ( 'FRIENDIKA_PLATFORM', 'Free Friendika');
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define ( 'FRIENDIKA_VERSION', '2.3.1120' );
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define ( 'FRIENDIKA_VERSION', '2.3.1121' );
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define ( 'DFRN_PROTOCOL_VERSION', '2.21' );
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define ( 'DB_UPDATE_VERSION', 1093 );
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124
zot.txt
124
zot.txt
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@ -1,7 +1,7 @@
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This is the Zot! social communications protocol.
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Specification revision: 1
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15 September 2011
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2 October 2011
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Mike Macgirvin
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This specification is public domain.
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@ -78,16 +78,21 @@ zot:env
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*******
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This consists of RFC822-style header fields representing the sender and
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recipient(s). Example:
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recipient(s). Line lengths have no defined limit and RFC822 continuation
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lines are not supported. If an inbound server is not able to process an
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envelope or post due to size constraints, it SHOULD return a
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"413 Entity too large" HTTP response.
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From: bob@example.com
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Sender: bob@example.com
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To: alice@example.com
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Example:
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Both "From:" and "Sender:" MUST be provided, and represent a webfinger
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address of the author and sender respectively. The webfinger address for
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the From address MUST contain a discoverable salmon public key that
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is needed to verify the enclosed salmon data. Sender is used to indicate
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Z-From: zot:bob@example.com
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Z-Sender: zot:bob@example.com
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Z-To: zot:alice@example.com
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Both "Z-From:" and "Z-Sender:" MUST be provided, and represent a single
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webfinger address of the author and sender respectively. The webfinger
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address for the From address MUST contain a discoverable salmon public key
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which is needed to verify the enclosed salmon data. Sender is used to indicate
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the webfinger identity responsible for transmitting this message. From
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indicates the message author.
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@ -95,46 +100,91 @@ In web-based social systems, a reply to a message SHOULD be conveyed to all of
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the original message participants. Only the author of the original message
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may know all the recipients (such as those contained in Bcc: elements). The
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author of a message always provides 'From'. They MUST duplicate this
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information as 'Sender'.
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information as 'Sender' when posting a followup message.
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A reply to a given message MUST be sent to the original From address, and MAY
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be sent to any additional addresses in the recipient list. The original author
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MUST send the reply to all known recipients of the original message, with
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their webfinger identity as Sender, and the comment/reply author as From.
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A reply to a given message MUST be sent to the From address of the original
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post, and MAY be sent to any additional addresses in the recipient list. The
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original post author MUST send the reply to all known recipients of the
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original message, with their webfinger identity as Sender, and the
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comment/reply author as From.
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Receiving agents SHOULD validate the From identity as the signer of the salmon
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magic envelope, and MAY reject it. They SHOULD also verify the Sender signature
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of the zot packet if it is different than the salmon signature. They MAY
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reject the message if the Sender is not allowed in their "friend list", or if
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they do not have a suitable relationship with the Sender, or if either
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signature fails to validate.
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signature fails to validate. Rejected messages for one of these reasons SHOULD
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be indicated with a "400 Bad Request" HTTP response.
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To: *
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Z-To: *
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indicates a public message with no specifically enumerated recipients.
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The fields To:, Cc:, and/or Bcc: MAY be present. At least one recipient field
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MUST be present. These fields may use the entire syntax specified by RFC822,
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for example:
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The fields Z-To: and/or Z-Bcc: MAY be present. At least one recipient field
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MUST be present.
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To: "Bob Smith" <bob@example.com>, "Alice Jones" <alice@example.com>
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Z-To: zot:bob@example.com, zot:alice@example.com, mailto:dave@example.com
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Z-Bcc: zot:https://example.com/profile/richard
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is a valid entry. A zot envelope is UTF-8 encoded, which differs from RFC822.
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The host component MUST be US-ASCII, with punycode translation of
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internationalised domain names applied.
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are valid entries. Adresses are comma separated and individual entries MUST NOT
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contain commas. There MAY be any number of ASCII space characters between
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entries for legibility. Header lines are terminated with a linefeed character
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(ASCII 0x0A).
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The entire envelope is then encrypted using alg with env_key and env_iv and
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This specification provides the following foreign protocol address prefixes
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for use in Z-To: or Z-Bcc: elements:
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zot: - normal zot delivery using webfinger or LRDD resolvable address
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ostatus: - normal OStatus delivery using webfinger or LRDD resovable address
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diaspora: - Diaspora network delivery using webfinger address
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facebook: - Facebook profile page URL
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twitter: - Twitter personal page URL without AJAX '#!' fragment
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mailto: - email RFC822/ESMTP address
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Examples:
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twitter:http://twitter.com/bjensen
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facebook:http://facebook.com/profile.php?id=000000001
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Foreign protocol addresses which have not been defined in this specification
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or future revisions of this specification and which are unknown to the
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recipient delivery process MAY be ignored.
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In cases where an address may contain either a webfinger or LRDD address, the
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webfinger address SHOULD be used preferentially.
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Z-Bcc:
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******
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The Z-Bcc element may contain one or more addresses which are hidden from end
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user presentation. A zot receiving system MUST NOT store or allow for
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the display of the Bcc information. Implementations which require extreme
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privacy SHOULD send individual posts to each of the Bcc: recipients containing
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only a single address. They MAY send all Bcc: posts using bulk delivery,
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however this may have privacy implications as there is no guarantee a
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receiving system will not log, store, or otherwise reveal the contents of the
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Bcc recipient list.
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Z-To: addresses MAY be shown to an end user.
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Envelope encryption
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*******************
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The entire envelope is encrypted using alg with env_key and env_iv and
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base64url encoded for transmission.
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The zot envelope MAY include remote addresses. A zot delivery agent MUST parse
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all addresses and determine whether a delivery address to the current endpoint
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is valid. This may be the result of:
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The zot envelope MAY include remote addresses. A zot inbound delivery agent
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MUST parse the envelope and determine whether a delivery address to the
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current endpoint is valid. This may be the result of:
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1. An address contains the public message wildcard '*'
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2. The current endpoint is a personal endpoint and one of the recipients
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listed in the To:, Cc:, or Bcc: addresses matches the webfinger address of
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listed in the Z-To: or Z-Bcc: addresses matches the webfinger address of
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the "owner" of the endpoint.
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3. The current endpoint is a bulk delivery endpoint. The bulk delivery
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@ -219,7 +269,8 @@ We anticipate this specification will in the future allow for a close variant
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of "message/rfc822" and which may include MIME. This may also be used to
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embed alternate message formats and protocols such as
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"application/x-diaspora+xml". If a delivery agent is unable to provide any
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acceptable data format, the delivery MUST be terminated/cancelled.
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acceptable data format to the remote system, the delivery to that system MUST
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be terminated/cancelled.
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Foreign Messages
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****************
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@ -233,9 +284,18 @@ systems MAY reject foreign messages.
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**********************
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* Zid authentication *
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**********************
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*******************************
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* Zid (Zot-ID) authentication *
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*******************************
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This section of the document is considered separate from the delivery
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specification precding it and represents a different protocol, which is
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currently incomplete. This will be split off into another document in the
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future, but is presented here as a synergistic component of the Zot network
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model.
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URLs may be present within a zot message which refer to private and/or
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protected resources. Zid uses OpenID to gain access to these protected
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