if two messages have the same time,
this results i all kinds of sorting failures,
esp. in non-delta-muas and on forwarding messages.
so, no two messages sent out from delta have the same timestamp.
normally, this is no problem, but when things are sent too fast,
eg. on forwarding, we lend us some time from the future.
however, all this did not work
because we forgot to write back the modified time,
this is fixed by this commit, as well as some cleanup.
This creates a specific type for blobs, with well defined conversions
at the borders. It also introduces a strong type for the Param::File
value since that param is often used used by the public API to set
filenames using absolute paths, but then core changes the param to a
blob before it gets to the database.
This eliminates a few more functions with very mallable C-like
arguments behaviour which combine a number of operations in one.
Because blob filenames are stored so often in arbitrary strings this
does add more code when receiving those, until the storage is fixed.
File name sanitisation is now deletated to the sanitize-filename crate
which should do a slightly better job at this.
if the past we had lots of crashes because of unexpected unwrap failures,
mostly related to string.
this commit avoids them eg. for string-conversions that may panic
eg. when encountering a null-byte or by logical programming errors
where an object is assumed to be set but is not under unexpected circumstances.
core-c has truncated messages in the contact requests.
this is questionable in general, as
- all messages, including contact requests,
are already truncated, unquoted, simplified etc.
- the ui should be capable of showing the full text anyway
(when the contact request is accepted, the whole messase is shown)
- also, all current ui show the contact requests by name only in the
chatlist; the user often does not even come to the contact request view.
- if the ui wants to show the contact request is a special way,
it is probably better to leave this truncation up to the ui
