bool ObjectQueryHandler::HandleRequest(const ApiUser::Ptr& user, HttpRequest& request, HttpResponse& response)
{
if (request.RequestUrl->GetPath().size() < 3 || request.RequestUrl->GetPath().size() > 4)
return false;
if (request.RequestMethod != "GET")
return false;
Type::Ptr type = FilterUtility::TypeFromPluralName(request.RequestUrl->GetPath()[2]);
if (!type) {
HttpUtility::SendJsonError(response, 400, "Invalid type specified.");
return true;
}
QueryDescription qd;
qd.Types.insert(type->GetName());
qd.Permission = "objects/query/" + type->GetName();
std::vector<String> joinAttrs;
joinAttrs.push_back("");
for (int fid = 0; fid < type->GetFieldCount(); fid++) {
Field field = type->GetFieldInfo(fid);
if (field.Attributes & FANavigation)
joinAttrs.push_back(field.Name);
}
Dictionary::Ptr params = HttpUtility::FetchRequestParameters(request);
params->Set("type", type->GetName());
if (request.RequestUrl->GetPath().size() >= 4) {
String attr = type->GetName();
boost::algorithm::to_lower(attr);
params->Set(attr, request.RequestUrl->GetPath()[3]);
}
std::vector<Value> objs = FilterUtility::GetFilterTargets(qd, params, user);
Array::Ptr results = new Array();
std::set<String> attrs;
Array::Ptr uattrs = params->Get("attrs");
if (uattrs) {
ObjectLock olock(uattrs);
BOOST_FOREACH(const String& uattr, uattrs) {
attrs.insert(uattr);
}
}
static void AddSuggestions(std::vector<String>& matches, const String& word, const String& pword, bool withFields, const Value& value)
{
String prefix;
if (!pword.IsEmpty())
prefix = pword + ".";
if (value.IsObjectType<Dictionary>()) {
Dictionary::Ptr dict = value;
ObjectLock olock(dict);
for (const Dictionary::Pair& kv : dict) {
AddSuggestion(matches, word, prefix + kv.first);
}
}
if (value.IsObjectType<Namespace>()) {
Namespace::Ptr ns = value;
ObjectLock olock(ns);
for (const Namespace::Pair& kv : ns) {
AddSuggestion(matches, word, prefix + kv.first);
}
}
if (withFields) {
Type::Ptr type = value.GetReflectionType();
for (int i = 0; i < type->GetFieldCount(); i++) {
Field field = type->GetFieldInfo(i);
AddSuggestion(matches, word, prefix + field.Name);
}
while (type) {
Object::Ptr prototype = type->GetPrototype();
Dictionary::Ptr dict = dynamic_pointer_cast<Dictionary>(prototype);
if (dict) {
ObjectLock olock(dict);
for (const Dictionary::Pair& kv : dict) {
AddSuggestion(matches, word, prefix + kv.first);
}
}
type = type->GetBaseType();
}
}
}
BOOST_FOREACH(const ConfigObject::Ptr& obj, objs) {
Dictionary::Ptr result1 = new Dictionary();
results->Add(result1);
Dictionary::Ptr resultAttrs = new Dictionary();
result1->Set("attrs", resultAttrs);
BOOST_FOREACH(const String& joinAttr, joinAttrs) {
Object::Ptr joinedObj;
String prefix;
if (joinAttr.IsEmpty()) {
joinedObj = obj;
prefix = type->GetName();
} else {
int fid = type->GetFieldId(joinAttr);
joinedObj = obj->NavigateField(fid);
if (!joinedObj)
continue;
Field field = type->GetFieldInfo(fid);
prefix = field.NavigationName;
}
boost::algorithm::to_lower(prefix);
Type::Ptr joinedType = joinedObj->GetReflectionType();
for (int fid = 0; fid < joinedType->GetFieldCount(); fid++) {
Field field = joinedType->GetFieldInfo(fid);
String aname = prefix + "." + field.Name;
if (!attrs.empty() && attrs.find(aname) == attrs.end())
continue;
Value val = joinedObj->GetField(fid);
/* hide internal navigation fields */
if (field.Attributes & FANavigation) {
Value nval = joinedObj->NavigateField(fid);
if (val == nval)
continue;
}
Value sval = Serialize(val, FAConfig | FAState);
resultAttrs->Set(aname, sval);
}
}
bool FilterUtility::EvaluateFilter(ScriptFrame& frame, Expression *filter,
const Object::Ptr& target, const String& variableName)
{
if (!filter)
return true;
Type::Ptr type = target->GetReflectionType();
String varName;
if (variableName.IsEmpty())
varName = type->GetName().ToLower();
else
varName = variableName;
Namespace::Ptr frameNS;
if (frame.Self.IsEmpty()) {
frameNS = new Namespace();
frame.Self = frameNS;
} else {
/* Enforce a namespace object for 'frame.self'. */
ASSERT(frame.Self.IsObjectType<Namespace>());
frameNS = frame.Self;
}
frameNS->Set("obj", target);
frameNS->Set(varName, target);
for (int fid = 0; fid < type->GetFieldCount(); fid++) {
Field field = type->GetFieldInfo(fid);
if ((field.Attributes & FANavigation) == 0)
continue;
Object::Ptr joinedObj = target->NavigateField(fid);
if (field.NavigationName)
frameNS->Set(field.NavigationName, joinedObj);
else
frameNS->Set(field.Name, joinedObj);
}
return Convert::ToBool(filter->Evaluate(frame));
}
bool FilterUtility::EvaluateFilter(ScriptFrame& frame, Expression *filter,
const Object::Ptr& target, const String& variableName)
{
if (!filter)
return true;
Type::Ptr type = target->GetReflectionType();
String varName;
if (variableName.IsEmpty())
varName = type->GetName().ToLower();
else
varName = variableName;
Dictionary::Ptr vars;
if (frame.Self.IsEmpty()) {
vars = new Dictionary();
frame.Self = vars;
} else
vars = frame.Self;
vars->Set("obj", target);
vars->Set(varName, target);
for (int fid = 0; fid < type->GetFieldCount(); fid++) {
Field field = type->GetFieldInfo(fid);
if ((field.Attributes & FANavigation) == 0)
continue;
Object::Ptr joinedObj = target->NavigateField(fid);
if (field.NavigationName)
vars->Set(field.NavigationName, joinedObj);
else
vars->Set(field.Name, joinedObj);
}
return Convert::ToBool(filter->Evaluate(frame));
}
std::vector<String> icinga::GetFieldCompletionSuggestions(const Type::Ptr& type, const String& word)
{
std::vector<String> result;
for (int i = 0; i < type->GetFieldCount(); i++) {
Field field = type->GetFieldInfo(i);
if (!(field.Attributes & FAConfig) || field.Attributes & FAInternal)
continue;
if (strcmp(field.TypeName, "int") != 0 && strcmp(field.TypeName, "double") != 0
&& strcmp(field.TypeName, "bool") != 0 && strcmp(field.TypeName, "String") != 0)
continue;
String fname = field.Name;
String suggestion = fname + "=";
if (suggestion.Find(word) == 0)
result.push_back(suggestion);
}
return result;
}
Dictionary::Ptr ObjectQueryHandler::SerializeObjectAttrs(const Object::Ptr& object,
const String& attrPrefix, const Array::Ptr& attrs, bool isJoin, bool allAttrs)
{
Type::Ptr type = object->GetReflectionType();
std::vector<int> fids;
if (isJoin && attrs) {
ObjectLock olock(attrs);
for (const String& attr : attrs) {
if (attr == attrPrefix) {
allAttrs = true;
break;
}
}
}
if (!isJoin && (!attrs || attrs->GetLength() == 0))
allAttrs = true;
if (allAttrs) {
for (int fid = 0; fid < type->GetFieldCount(); fid++) {
fids.push_back(fid);
}
} else if (attrs) {
ObjectLock olock(attrs);
for (const String& attr : attrs) {
String userAttr;
if (isJoin) {
String::SizeType dpos = attr.FindFirstOf(".");
if (dpos == String::NPos)
continue;
String userJoinAttr = attr.SubStr(0, dpos);
if (userJoinAttr != attrPrefix)
continue;
userAttr = attr.SubStr(dpos + 1);
} else
userAttr = attr;
int fid = type->GetFieldId(userAttr);
if (fid < 0)
BOOST_THROW_EXCEPTION(ScriptError("Invalid field specified: " + userAttr));
fids.push_back(fid);
}
}
DictionaryData resultAttrs;
resultAttrs.reserve(fids.size());
for (int fid : fids) {
Field field = type->GetFieldInfo(fid);
Value val = object->GetField(fid);
/* hide attributes which shouldn't be user-visible */
if (field.Attributes & FANoUserView)
continue;
/* hide internal navigation fields */
if (field.Attributes & FANavigation && !(field.Attributes & (FAConfig | FAState)))
continue;
Value sval = Serialize(val, FAConfig | FAState);
resultAttrs.emplace_back(field.Name, sval);
}
return new Dictionary(std::move(resultAttrs));
}
bool ObjectQueryHandler::HandleRequest(const ApiUser::Ptr& user, HttpRequest& request, HttpResponse& response, const Dictionary::Ptr& params)
{
if (request.RequestUrl->GetPath().size() < 3 || request.RequestUrl->GetPath().size() > 4)
return false;
if (request.RequestMethod != "GET")
return false;
Type::Ptr type = FilterUtility::TypeFromPluralName(request.RequestUrl->GetPath()[2]);
if (!type) {
HttpUtility::SendJsonError(response, params, 400, "Invalid type specified.");
return true;
}
QueryDescription qd;
qd.Types.insert(type->GetName());
qd.Permission = "objects/query/" + type->GetName();
Array::Ptr uattrs, ujoins, umetas;
try {
uattrs = params->Get("attrs");
} catch (const std::exception&) {
HttpUtility::SendJsonError(response, params, 400,
"Invalid type for 'attrs' attribute specified. Array type is required.");
return true;
}
try {
ujoins = params->Get("joins");
} catch (const std::exception&) {
HttpUtility::SendJsonError(response, params, 400,
"Invalid type for 'joins' attribute specified. Array type is required.");
return true;
}
try {
umetas = params->Get("meta");
} catch (const std::exception&) {
HttpUtility::SendJsonError(response, params, 400,
"Invalid type for 'meta' attribute specified. Array type is required.");
return true;
}
bool allJoins = HttpUtility::GetLastParameter(params, "all_joins");
params->Set("type", type->GetName());
if (request.RequestUrl->GetPath().size() >= 4) {
String attr = type->GetName();
boost::algorithm::to_lower(attr);
params->Set(attr, request.RequestUrl->GetPath()[3]);
}
std::vector<Value> objs;
try {
objs = FilterUtility::GetFilterTargets(qd, params, user);
} catch (const std::exception& ex) {
HttpUtility::SendJsonError(response, params, 404,
"No objects found.",
DiagnosticInformation(ex));
return true;
}
ArrayData results;
results.reserve(objs.size());
std::set<String> joinAttrs;
std::set<String> userJoinAttrs;
if (ujoins) {
ObjectLock olock(ujoins);
for (const String& ujoin : ujoins) {
userJoinAttrs.insert(ujoin.SubStr(0, ujoin.FindFirstOf(".")));
}
}
for (int fid = 0; fid < type->GetFieldCount(); fid++) {
Field field = type->GetFieldInfo(fid);
if (!(field.Attributes & FANavigation))
continue;
if (!allJoins && userJoinAttrs.find(field.NavigationName) == userJoinAttrs.end())
continue;
joinAttrs.insert(field.Name);
}
for (const ConfigObject::Ptr& obj : objs) {
DictionaryData result1{
{ "name", obj->GetName() },
{ "type", obj->GetReflectionType()->GetName() }
};
DictionaryData metaAttrs;
if (umetas) {
ObjectLock olock(umetas);
for (const String& meta : umetas) {
if (meta == "used_by") {
Array::Ptr used_by = new Array();
metaAttrs.emplace_back("used_by", used_by);
for (const Object::Ptr& pobj : DependencyGraph::GetParents((obj)))
{
ConfigObject::Ptr configObj = dynamic_pointer_cast<ConfigObject>(pobj);
if (!configObj)
continue;
used_by->Add(new Dictionary({
{ "type", configObj->GetReflectionType()->GetName() },
{ "name", configObj->GetName() }
}));
}
} else if (meta == "location") {
metaAttrs.emplace_back("location", obj->GetSourceLocation());
} else {
HttpUtility::SendJsonError(response, params, 400, "Invalid field specified for meta: " + meta);
return true;
}
}
}
result1.emplace_back("meta", new Dictionary(std::move(metaAttrs)));
try {
result1.emplace_back("attrs", SerializeObjectAttrs(obj, String(), uattrs, false, false));
} catch (const ScriptError& ex) {
HttpUtility::SendJsonError(response, params, 400, ex.what());
return true;
}
DictionaryData joins;
for (const String& joinAttr : joinAttrs) {
Object::Ptr joinedObj;
int fid = type->GetFieldId(joinAttr);
if (fid < 0) {
HttpUtility::SendJsonError(response, params, 400, "Invalid field specified for join: " + joinAttr);
return true;
}
Field field = type->GetFieldInfo(fid);
if (!(field.Attributes & FANavigation)) {
HttpUtility::SendJsonError(response, params, 400, "Not a joinable field: " + joinAttr);
return true;
}
joinedObj = obj->NavigateField(fid);
if (!joinedObj)
continue;
String prefix = field.NavigationName;
try {
joins.emplace_back(prefix, SerializeObjectAttrs(joinedObj, prefix, ujoins, true, allJoins));
} catch (const ScriptError& ex) {
HttpUtility::SendJsonError(response, params, 400, ex.what());
return true;
}
}
result1.emplace_back("joins", new Dictionary(std::move(joins)));
results.push_back(new Dictionary(std::move(result1)));
}
Dictionary::Ptr result = new Dictionary({
{ "results", new Array(std::move(results)) }
});
response.SetStatus(200, "OK");
HttpUtility::SendJsonBody(response, params, result);
return true;
}