D-Bus access control

See merge request !22

By default, only privileged and sailfish-mms groups (effective or primary)
are allowed to call most D-Bus methods.

D-Bus access rules can be configured by adding [DBus] section to
/etc/mms-engine.conf config file:

[DBus]
MmsEngineAccess=...
TransferAccess=...
TransferListAccess=...

The default rules are:

MmsEngineAccess:

  (!group(privileged))&(!group(sailfish-mms))&(cancel()|receiveMessage()|
  sendReadReport()|sendMessage()|push()|pushNotify()|setLogLevel()|
  setLogType()|migrateSettings())=deny

TransferAccess:

  (!group(privileged))&(!group(sailfish-mms))&Get()=deny

TransferListAccess:

  (!group(privileged))&(!group(sailfish-mms))&(GetAll()|EnableUpdates()|
  DisableUpdates()|GetSendProgress()|GetReceiveProgress())=deny

... about transfer list changes. Assume that only those who fetched
the current list of transfers, are interested in receiving updates.

Later, those requesting the full list will go through access check,
which will guarantee that those who are not allowed to get the list
of tranfers, won't receive signals too.

It makes more sense to define it where interface is defined,
rather than on the implementation side.

Remove hardcoded string from mms-engine

See merge request !21

Turn missing From address into empty string instead.
It's up to the UI to interpret it any way it wants.

[mms-engine] Bump version. JB#44705

Use nemo user and privileged group. JB#44705

See merge request !20

Use systemd activation for MMS engine dbus

See merge request !19

Allows to specify content type for the attachment. Can be repeated
if there are several attachments. The first content type is applied
to the first attachment, the second content type to the second
attachment and so on.

Add missing post and postun dependency to glib2.
Remove commented out lines.

[systemd] Use systemd activation for MMS engine dbus. Contributes to JB#24120

This allows parallel startup of dbus services. Also prevents MMS engine
startup when system is shutting down in case that ever happens.

Change dbus service file to only describe dbus service and add systemd
service file to start the service. Change spec and project file to
include the new file.
Signed-off-by: Tomi Leppänen <tomi.leppanen@jolla.com>

Separate network and service inactivity timeouts

See merge request !18

If "singleDataContext" option is enabled in ofono, it makes sense
to configure mms-engine to use shorter network inactivity timeout
so that data connection gets restored faster. Which shouldn't
affect the general service inactivity timeout.

[Packaging] Fix build with qt 5.9. Fixes MER#1983

See merge request !17

Void function returning a value.

Workaround for broken MMS proxy IP address

See merge request !16

Some operators provide IP address of the MMS proxy
prepending zeros to each number shorter then 3 digits,
e.g. "192.168.094.023" instead of "192.168.94.23".
That may look nicer but it's actually wrong because
the numbers starting with zeros are interpreted as
octal numbers. In the example above 023 actually means
16 and 094 is not a valid number at all.

In addition to publishing these broken settings on their
web sites, some of the operators send them over the air,
in which case we can't even blame the user for entering
an invalid IP address. We better be prepared to deal with
those.

Since nobody in the world seems to be actually using the
octal notation to write an IP address, let's remove the
leading zeros if we find them in the host part of the MMS
proxy URL.

Pass MMS location URL to the handler

See merge request !15

It allows the handler to ignore duplicate push notifications.