EDS Client: implement creating and deleting databases

Depends on the EDS 3.6 ESourceRegistry API. Needs the very latest EDS
with the following commit. There's no configure check yet because EDS
3.6 is not released yet.

commit 6df76009318eac9dbe3dd49165394d389102764e
Author: Matthew Barnes <mbarnes@redhat.com>
Date:   Tue Sep 11 22:56:08 2012 -0400

    Bug 683785 - Add e_source_new_with_uid()

    Variation of e_source_new() which allows a predetermined UID to be
    specified for a scratch source.  This changes the "uid" property from
    read-only to read/write + construct-only, and eliminates the need for
    EServerSideSource to override the property.

4 files changed, 73 insertions, 1 deletions

diff --git a/src/backends/evolution/EvolutionCalendarSource.h b/src/backends/evolution/EvolutionCalendarSource.h
index fed3e74f..8107b002 100644
--- a/src/backends/evolution/EvolutionCalendarSource.h
+++ b/src/backends/evolution/EvolutionCalendarSource.h
@@ -170,7 +170,7 @@ class EvolutionCalendarSource : public EvolutionSyncSource,
     ECalClientSourceType sourceType() const {
         return (ECalClientSourceType)m_type;
     }
-    const char *sourceExtension() const {
+    virtual const char *sourceExtension() const {
         return
             m_type == EVOLUTION_CAL_SOURCE_TYPE_EVENTS ? E_SOURCE_EXTENSION_CALENDAR :
             m_type == EVOLUTION_CAL_SOURCE_TYPE_TASKS ? E_SOURCE_EXTENSION_TASK_LIST :
diff --git a/src/backends/evolution/EvolutionContactSource.h b/src/backends/evolution/EvolutionContactSource.h
index a0ef0b5c..9ba700a9 100644
--- a/src/backends/evolution/EvolutionContactSource.h
+++ b/src/backends/evolution/EvolutionContactSource.h
@@ -86,6 +86,10 @@ class EvolutionContactSource : public EvolutionSyncSource,
         info.m_afterReadScript = "$VCARD_AFTERREAD_SCRIPT_EVOLUTION;";
     }
 
+#ifdef USE_EDS_CLIENT
+    virtual const char *sourceExtension() const { return E_SOURCE_EXTENSION_ADDRESS_BOOK; }
+#endif
+
   private:
     /** extract REV string for contact, throw error if not found */
     std::string getRevision(const std::string &uid);
diff --git a/src/backends/evolution/EvolutionSyncSource.cpp b/src/backends/evolution/EvolutionSyncSource.cpp
index 5a90df2e..c9850ca4 100644
--- a/src/backends/evolution/EvolutionSyncSource.cpp
+++ b/src/backends/evolution/EvolutionSyncSource.cpp
@@ -140,9 +140,68 @@ EClientCXX EvolutionSyncSource::openESource(const char *extension,
         }
     }
 
+    // record result for SyncSource::getDatabase()
+    source = e_client_get_source(client);
+    if (source) {
+        Database database(e_source_get_display_name(source),
+                          e_source_get_uid(source));
+        setDatabase(database);
+    }
+
     return client;
 }
 
+SyncSource::Database EvolutionSyncSource::createDatabase(const Database &database)
+{
+    GErrorCXX gerror;
+    ESourceCXX source(e_source_new_with_uid(database.m_uri.empty() ? NULL : database.m_uri.c_str(),
+                                            NULL, gerror), false);
+    if (!source) {
+        gerror.throwError("e_source_new()");
+    }
+    e_source_set_enabled(source, true);
+    e_source_set_display_name(source, database.m_name.c_str());
+    e_source_set_parent(source, "local-stub");
+
+
+    // create extension of the right type and set "local" as backend
+    ESourceBackend *backend = static_cast<ESourceBackend *>(e_source_get_extension(source, sourceExtension()));
+    e_source_backend_set_backend_name(backend, "local");
+
+    ESourceRegistryCXX registry = getSourceRegistry();
+    ESourceListCXX sources;
+    sources.push_back(source.ref()); // ESourceListCXX unrefs sources it points to
+    if (!e_source_registry_create_sources_sync(registry,
+                                               sources,
+                                               NULL,
+                                               gerror)) {
+        gerror.throwError(StringPrintf("creating EDS database of type %s with name '%s'%s%s",
+                                       sourceExtension(),
+                                       database.m_name.c_str(),
+                                       database.m_uri.empty() ? "" : " and URI ",
+                                       database.m_uri.c_str()));
+    }
+    const gchar *name = e_source_get_display_name(source);
+    const gchar *uid = e_source_get_uid(source);
+    return Database(name, uid);
+}
+
+void EvolutionSyncSource::deleteDatabase(const std::string &uri)
+{
+    ESourceRegistryCXX registry = getSourceRegistry();
+    ESourceCXX source(e_source_registry_ref_source(registry, uri.c_str()), false);
+    if (!source) {
+        throwError(StringPrintf("EDS database with URI '%s' cannot be deleted, does not exist",
+                                uri.c_str()));
+    }
+    GErrorCXX gerror;
+    if (!e_source_remove_sync(source, NULL, gerror)) {
+        throwError(StringPrintf("deleting EDS database with URI '%s'", uri.c_str()),
+                   gerror);
+    }
+}
+
+
 #endif // USE_EDS_CLIENT
 
 ESource *EvolutionSyncSource::findSource(const ESourceListCXX &list, const string &id )
diff --git a/src/backends/evolution/EvolutionSyncSource.h b/src/backends/evolution/EvolutionSyncSource.h
index 3ac68ac5..e5c8d281 100644
--- a/src/backends/evolution/EvolutionSyncSource.h
+++ b/src/backends/evolution/EvolutionSyncSource.h
@@ -76,7 +76,16 @@ class EvolutionSyncSource : public TrackingSyncSource
                            ESource *(*refBuiltin)(ESourceRegistry *),
                            const boost::function<EClient *(ESource *, GError **gerror)> &newClient);
     ESourceRegistryCXX getSourceRegistry();
+
+    // Implementation of SyncSource calls which only works when using EDS Client API
+    // and EDS > 3.4. Older EDS has no way of creating sources easily (or at all).
+    virtual Database createDatabase(const Database &database);
+    virtual void deleteDatabase(const std::string &uri);
+
+    /** E_SOURCE_EXTENSION_ADDRESS_BOOK, etc. */
+    virtual const char *sourceExtension() const = 0;
 #endif
+
     /**
      * searches the list for a source with the given uri or name
      *