DBus server: add 'dir' key in the reports (MB#8144)

The 'dir' key is stored in each report for GetReports.
It will save the full directory and be transferred to
dbus clients.
The root cause is to give an ID to dbus clients and the
ID is used to identify the report, in the Session.Restore.

src/dbus/interfaces/syncevo-server-full.xml

@@ -167,7 +167,7 @@
       <arg type="aa{ss}" name="reports" direction="out">
         <doc:doc><doc:summary>synchronization reports</doc:summary></doc:doc>
         <doc:doc><doc:description>The array contains report dictionaries. The dictionary keys can be defined by below BNFs:
-                Key ::= 'peer' | 'start' | 'end' | 'status' | 'error' | SourceKey
+                Key ::= 'dir' | 'peer' | 'start' | 'end' | 'status' | 'error' | SourceKey
                 SourceKey ::= SourcePrefix SourcePart
                 SourcePrefix ::= 'source' Sep SourceName
                 SourceName ::= character+ 

src/syncevo-dbus-server.cpp

@@ -1307,6 +1307,8 @@ void ReadOperations::getReports(uint32_t start, uint32_t count,
         if(index >= start && index - start < count) {
             const string &dir = dirs[i];
             std::map<string, string> aReport;
+            // insert a 'dir' as an ID for the current report
+            aReport.insert(pair<string, string>("dir", dir));
             SyncReport report;
             // peerName is also extracted from the dir 
             string peerName = client.readSessionInfo(dir,report);

test/test-dbus.py

@@ -1066,6 +1066,7 @@ class TestSessionAPIsDummy(unittest.TestCase, DBusUtil):
         # get only one report
         reports = self.session.GetReports(0, 1, utf8_strings=True)
         self.assertTrue(len(reports) == 1)
+        del reports[0]["dir"]
 
         self.failUnlessEqual(reports[0], report0)
         """ the number of reference sessions is totally 5. Check the returned count