void ActiveSyncSource::readItem(const std::string &luid, std::string &item)
{
// return straight from cache?
std::map<std::string, std::string>::iterator it = m_items.find(luid);
if (it == m_items.end()) {
// no, must fetch
EASItemPtr tmp(eas_item_info_new(), "EasItem");
GErrorCXX gerror;
if (!eas_sync_handler_fetch_item(m_handler,
m_folder.c_str(),
luid.c_str(),
tmp,
getEasType(),
gerror)) {
if (gerror.m_gerror->message &&
strstr(gerror.m_gerror->message, "ObjectNotFound")
/* gerror.matches(EAS_CONNECTION_ERROR, EAS_CONNECTION_ITEMOPERATIONS_ERROR_OBJECTNOTFOUND)
(gdb) p *m_gerror
$7 = {domain = 156, code = 36,
message = 0xda2940 "GDBus.Error:org.meego.activesyncd.ItemOperationsError.ObjectNotFound: Document library - The object was not found or access denied."}
*/) {
throwError(STATUS_NOT_FOUND, "item not found: " + luid);
} else {
gerror.throwError(StringPrintf("reading eas item %s", luid.c_str()));
}
}
if (!tmp->data) {
throwError(StringPrintf("no body returned for eas item %s", luid.c_str()));
}
item = tmp->data;
} else {
item = it->second;
}
}
boost::shared_ptr<AuthProvider> createSignonAuthProvider(const InitStateString &username,
const InitStateString &password)
{
// Expected content of parameter GVariant.
boost::shared_ptr<GVariantType> hashtype(g_variant_type_new("a{sv}"), g_variant_type_free);
// 'username' is the part after signon: which we can parse directly.
GErrorCXX gerror;
GVariantCXX parametersVar(g_variant_parse(hashtype.get(), username.c_str(), NULL, NULL, gerror),
TRANSFER_REF);
if (!parametersVar) {
gerror.throwError(SE_HERE, "parsing 'signon:' username");
}
GHashTableCXX parameters(Variant2HashTable(parametersVar));
// Extract the values that we expect in the parameters hash.
guint32 signonID;
const char *method;
const char *mechanism;
GVariant *value;
value = (GVariant *)g_hash_table_lookup(parameters, "identity");
if (!value ||
!g_variant_type_equal(G_VARIANT_TYPE_UINT32, g_variant_get_type(value))) {
SE_THROW("need 'identity: <numeric ID>' in 'signon:' parameters");
}
signonID = g_variant_get_uint32(value);
value = (GVariant *)g_hash_table_lookup(parameters, "method");
if (!value ||
!g_variant_type_equal(G_VARIANT_TYPE_STRING, g_variant_get_type(value))) {
SE_THROW("need 'method: <string>' in 'signon:' parameters");
}
method = g_variant_get_string(value, NULL);
value = (GVariant *)g_hash_table_lookup(parameters, "mechanism");
if (!value ||
!g_variant_type_equal(G_VARIANT_TYPE_STRING, g_variant_get_type(value))) {
SE_THROW("need 'mechanism: <string>' in 'signon:' parameters");
}
mechanism = g_variant_get_string(value, NULL);
value = (GVariant *)g_hash_table_lookup(parameters, "session");
if (!value ||
!g_variant_type_equal(hashtype.get(), g_variant_get_type(value))) {
SE_THROW("need 'session: <hash>' in 'signon:' parameters");
}
GHashTableCXX sessionData(Variant2HashTable(value));
SE_LOG_DEBUG(NULL, "using identity %u, method %s, mechanism %s",
signonID, method, mechanism);
SignonIdentityCXX identity(signon_identity_new_from_db(signonID), TRANSFER_REF);
SE_LOG_DEBUG(NULL, "using signond identity %d", signonID);
SignonAuthSessionCXX authSession(signon_identity_create_session(identity, method, gerror), TRANSFER_REF);
boost::shared_ptr<AuthProvider> provider(new SignonAuthProvider(authSession, sessionData, mechanism));
return provider;
}
GLibNotify::GLibNotify(const char *file,
const callback_t &callback) :
m_callback(callback)
{
GFileCXX filecxx(g_file_new_for_path(file), TRANSFER_REF);
GErrorCXX gerror;
GFileMonitorCXX monitor(g_file_monitor_file(filecxx.get(), G_FILE_MONITOR_NONE, NULL, gerror), TRANSFER_REF);
m_monitor.swap(monitor);
if (!m_monitor) {
gerror.throwError(SE_HERE, std::string("monitoring ") + file);
}
g_signal_connect_after(m_monitor.get(),
"changed",
G_CALLBACK(changed),
(void *)&m_callback);
}
void ActiveSyncSource::deleteItem(const string &luid)
{
// asking to delete a non-existent item via ActiveSync does not
// trigger an error; this is expected by the caller, so detect
// the problem by looking up the item in our list (and keep the
// list up-to-date elsewhere)
if (m_ids && m_ids->readProperty(luid).empty()) {
throwError(STATUS_NOT_FOUND, "item not found: " + luid);
}
// send delete request
// TODO (?): batch delete requests
GListCXX<char, GSList> items;
items.push_back((char *)luid.c_str());
GErrorCXX gerror;
char *buffer;
if (!eas_sync_handler_delete_items(m_handler,
m_currentSyncKey.c_str(),
&buffer,
getEasType(),
m_folder.c_str(),
items,
gerror)) {
gerror.throwError("deleting eas item");
}
GStringPtr bufferOwner(buffer, "delete items: empty sync key returned");
// remove from item list
if (m_ids) {
m_items.erase(luid);
m_ids->removeProperty(luid);
}
// update key
m_currentSyncKey = buffer;
}
void ForkExecParent::start()
{
if (m_watchChild) {
SE_THROW("child already started");
}
// boost::shared_ptr<ForkExecParent> me = ...;
GDBusCXX::DBusErrorCXX dbusError;
SE_LOG_DEBUG(NULL, NULL, "ForkExecParent: preparing for child process %s", m_helper.c_str());
m_server = GDBusCXX::DBusServerCXX::listen("", &dbusError);
if (!m_server) {
dbusError.throwFailure("starting server");
}
m_server->setNewConnectionCallback(boost::bind(&ForkExecParent::newClientConnection, this, _2));
// look for helper binary
std::string helper;
GSpawnFlags flags = G_SPAWN_DO_NOT_REAP_CHILD;
if (m_helper.find('/') == m_helper.npos) {
helper = getEnv("SYNCEVOLUTION_LIBEXEC_DIR", "");
if (helper.empty()) {
// env variable not set, look in libexec dir
helper = SYNCEVO_LIBEXEC;
helper += "/";
helper += m_helper;
if (access(helper.c_str(), R_OK)) {
// some error, try PATH
flags = (GSpawnFlags)(flags | G_SPAWN_SEARCH_PATH);
helper = m_helper;
}
} else {
// use env variable without further checks, must work
helper += "/";
helper += m_helper;
}
} else {
// absolute path, use it
helper = m_helper;
}
m_argvStrings.push_back(helper);
m_argv.reset(AllocStringArray(m_argvStrings));
for (char **env = environ;
*env;
env++) {
if (!boost::starts_with(*env, ForkExecEnvVar)) {
m_envStrings.push_back(*env);
}
}
// pass D-Bus address via env variable
m_envStrings.push_back(ForkExecEnvVar + m_server->getAddress());
m_env.reset(AllocStringArray(m_envStrings));
SE_LOG_DEBUG(NULL, NULL, "ForkExecParent: running %s with D-Bus address %s",
helper.c_str(), m_server->getAddress().c_str());
// Check which kind of output redirection is wanted.
m_mergedStdoutStderr = !m_onOutput.empty();
if (!m_onOutput.empty()) {
m_mergedStdoutStderr = true;
}
GErrorCXX gerror;
int err = -1, out = -1;
if (!g_spawn_async_with_pipes(NULL, // working directory
static_cast<gchar **>(m_argv.get()),
static_cast<gchar **>(m_env.get()),
flags,
// child setup function: redirect stdout to stderr
m_mergedStdoutStderr ? setStdoutToStderr : NULL,
NULL, // child setup user data
&m_childPid,
NULL, // set stdin to /dev/null
(m_mergedStdoutStderr || m_onStdout.empty()) ? NULL : &out,
(m_mergedStdoutStderr || !m_onStderr.empty()) ? &err : NULL,
gerror)) {
m_childPid = 0;
gerror.throwError("spawning child");
}
// set up output redirection, ignoring failures
setupPipe(m_err, m_errID, err);
setupPipe(m_out, m_outID, out);
SE_LOG_DEBUG(NULL, NULL, "ForkExecParent: child process for %s has pid %ld",
helper.c_str(), (long)m_childPid);
// TODO: introduce C++ wrapper around GSource
m_watchChild = g_child_watch_source_new(m_childPid);
g_source_set_callback(m_watchChild, (GSourceFunc)watchChildCallback, this, NULL);
g_source_attach(m_watchChild, NULL);
}
void ActiveSyncSource::beginSync(const std::string &lastToken, const std::string &resumeToken)
{
// erase content which might have been set in a previous call
reset();
// claim item node for ids, if not done yet
if (m_itemNode && !m_ids) {
m_ids.swap(m_itemNode);
}
// incremental sync (non-empty token) or start from scratch
m_startSyncKey = lastToken;
if (lastToken.empty()) {
// slow sync: wipe out cached list of IDs, will be filled anew below
SE_LOG_DEBUG(this, NULL, "sync key empty, starting slow sync");
m_ids->clear();
} else {
SE_LOG_DEBUG(this, NULL, "sync key %s for account '%s' folder '%s', starting incremental sync",
lastToken.c_str(),
m_account.c_str(),
m_folder.c_str());
}
gboolean moreAvailable = TRUE;
m_currentSyncKey = m_startSyncKey;
// same logic as in ActiveSyncCalendarSource::beginSync()
bool slowSync = false;
for (bool firstIteration = true;
moreAvailable;
firstIteration = false) {
gchar *buffer = NULL;
GErrorCXX gerror;
EASItemsCXX created, updated;
EASIdsCXX deleted;
bool wasSlowSync = m_currentSyncKey.empty();
if (!eas_sync_handler_get_items(m_handler,
m_currentSyncKey.c_str(),
&buffer,
getEasType(),
m_folder.c_str(),
created, updated, deleted,
&moreAvailable,
gerror)) {
if (gerror.m_gerror &&
/*
gerror.m_gerror->domain == EAS_TYPE_CONNECTION_ERROR &&
gerror.m_gerror->code == EAS_CONNECTION_SYNC_ERROR_INVALIDSYNCKEY && */
gerror.m_gerror->message &&
strstr(gerror.m_gerror->message, "Sync error: Invalid synchronization key") &&
firstIteration) {
// fall back to slow sync
slowSync = true;
m_currentSyncKey = "";
m_ids->clear();
continue;
}
gerror.throwError("reading ActiveSync changes");
}
GStringPtr bufferOwner(buffer, "reading changes: empty sync key returned");
// TODO: Test that we really get an empty token here for an unexpected slow
// sync. If not, we'll start an incremental sync here and later the engine
// will ask us for older, unmodified item content which we won't have.
// populate ID lists and content cache
BOOST_FOREACH(EasItemInfo *item, created) {
if (!item->server_id) {
throwError("no server ID for new eas item");
}
string luid(item->server_id);
if (luid.empty()) {
throwError("empty server ID for new eas item");
}
SE_LOG_DEBUG(this, NULL, "new item %s", luid.c_str());
addItem(luid, NEW);
m_ids->setProperty(luid, "1");
if (!item->data) {
throwError(StringPrintf("no body returned for new eas item %s", luid.c_str()));
}
m_items[luid] = item->data;
}
BOOST_FOREACH(EasItemInfo *item, updated) {
if (!item->server_id) {
throwError("no server ID for updated eas item");
}
string luid(item->server_id);
if (luid.empty()) {
throwError("empty server ID for updated eas item");
}
SE_LOG_DEBUG(this, NULL, "updated item %s", luid.c_str());
addItem(luid, UPDATED);
// m_ids.setProperty(luid, "1"); not necessary, should already exist (TODO: check?!)
if (!item->data) {
throwError(StringPrintf("no body returned for updated eas item %s", luid.c_str()));
}
m_items[luid] = item->data;
}
BOOST_FOREACH(const char *serverID, deleted) {
if (!serverID) {
throwError("no server ID for deleted eas item");
}
string luid(serverID);
if (luid.empty()) {
throwError("empty server ID for deleted eas item");
}
SE_LOG_DEBUG(this, NULL, "deleted item %s", luid.c_str());
addItem(luid, DELETED);
m_ids->removeProperty(luid);
}
// update key
m_currentSyncKey = buffer;
// Google hack: if we started with an empty sync key (= slow sync)
// and got no results (= existing items), then try one more time,
// because Google only seems to report results when asked with
// a valid sync key. As an additional sanity check make sure that
// we have a valid sync key now.
if (wasSlowSync &&
created.empty() &&
!m_currentSyncKey.empty()) {
moreAvailable = true;
}
}
// now also generate full list of all current items:
// old items + new (added to m_ids above) - deleted (removed above)
ConfigProps props;
m_ids->readProperties(props);
BOOST_FOREACH(const StringPair &entry, props) {
const std::string &luid = entry.first;
SE_LOG_DEBUG(this, NULL, "existing item %s", luid.c_str());
addItem(luid, ANY);
}
if (slowSync) {
// tell engine that we need a slow sync, if it didn't know already
SE_THROW_EXCEPTION_STATUS(StatusException,
"ActiveSync error: Invalid synchronization key",
STATUS_SLOW_SYNC_508);
}
}
SyncSourceSerialize::InsertItemResult ActiveSyncSource::insertItem(const std::string &luid, const std::string &data)
{
SyncSourceSerialize::InsertItemResult res;
EASItemPtr tmp(eas_item_info_new(), "EasItem");
EasItemInfo *item = tmp.get();
if (!luid.empty()) {
// update
item->server_id = g_strdup(luid.c_str());
} else {
// add
// TODO: is a local id needed? We don't have one.
}
item->data = g_strdup(data.c_str());
EASItemsCXX items;
items.push_front(tmp.release());
GErrorCXX gerror;
char *buffer;
// distinguish between update (existing luid)
// or creation (empty luid)
if (luid.empty()) {
// send item to server
if (!eas_sync_handler_add_items(m_handler,
m_currentSyncKey.c_str(),
&buffer,
getEasType(),
m_folder.c_str(),
items,
gerror)) {
gerror.throwError("adding eas item");
}
if (!item->server_id) {
throwError("no server ID for new eas item");
}
// get new ID from updated item
res.m_luid = item->server_id;
if (res.m_luid.empty()) {
throwError("empty server ID for new eas item");
}
// TODO: if someone else has inserted a new calendar item
// with the same UID as the one we are trying to insert here,
// what will happen? Does the ActiveSync server prevent
// adding our own version of the item or does it merge?
// res.m_merged = ???
} else {
// update item on server
if (!eas_sync_handler_update_items(m_handler,
m_currentSyncKey.c_str(),
&buffer,
getEasType(),
m_folder.c_str(),
items,
gerror)) {
gerror.throwError("updating eas item");
}
res.m_luid = luid;
}
GStringPtr bufferOwner(buffer, "insert item: empty sync key returned");
// add/update in cache
if (m_ids) {
m_items[res.m_luid] = data;
m_ids->setProperty(res.m_luid, "1");
}
// update key
m_currentSyncKey = buffer;
return res;
}
