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util.jid: Fix special escaping of '\' per XEP-0106
From XEP-0106 §2. Requirements:
> in certain circumstances, the escaping character itself ("\") might
> also be escaped
Later in §4.2 Address Transformation Algorithm it is stated that the
backslash would only be escaped if it forms an escape sequence. Thus
'\foo' is unaltered but '\20' must be escaped into '\5c20'.
Thanks to lovetox and jonas’ for brining up.
author | Kim Alvefur <zash@zash.se> |
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date | Fri, 28 Aug 2020 18:44:02 +0200 (2020-08-28) |
parent | 22:2856dfc1f5cc |
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No 'to' attribute: IQ: Pass to appropriate handler Presence: Broadcast to contacts - if initial presence, also send out presence probes - if probe would be to local user, generate presence stanza for them Message: Route as if it is addressed to the bare JID of the sender To a local host: IQ: Pass to appropriate handler Presence: - Message: Deliver to admin? To local contact: Bare JID: IQ: Pass to appropriate handler Presence: Broadcast to all resources Message: Route to 'best' resource Full JID: IQ: Send to resource Presence: Send to resource Message: Send to resource Full JID but resource not connected: IQ: Return service-unavailable Message: Handle same as if to bare JID Presence: Drop (unless type=subscribe[ed]) To remote contact: Initiate s2s connection if necessary Send stanza across