Esempio n. 1
0
bool ArrayData::hasInternalReference(PointerSet &vars,
                                     bool ds /* = false */) const {
  if (isSharedMap()) return false;
  for (ArrayIter iter(this); iter; ++iter) {
    CVarRef var = iter.secondRef();
    if (var.isReferenced()) {
      Variant *pvar = var.getRefData();
      if (vars.find(pvar) != vars.end()) {
        return true;
      }
      vars.insert(pvar);
    }
    if (var.isObject()) {
      ObjectData *pobj = var.getObjectData();
      if (vars.find(pobj) != vars.end()) {
        return true;
      }
      vars.insert(pobj);
      if (ds && pobj->o_instanceof("Serializable")) {
        return true;
      }
      if (pobj->hasInternalReference(vars, ds)) {
        return true;
      }
    } else if (var.isArray() &&
               var.getArrayData()->hasInternalReference(vars, ds)) {
      return true;
    }
  }
  return false;
}
Esempio n. 2
0
bool ArrayData::hasInternalReference(PointerSet &vars) const {
  if (supportValueRef()) {
    for (ArrayIter iter(this); iter; ++iter) {
      CVarRef var = iter.secondRef();
      if (var.isReferenced()) {
        Variant *pvar = var.getVariantData();
        if (vars.find(pvar) != vars.end()) {
          return true;
        }
        vars.insert(pvar);
      }
      if (var.isObject()) {
        ObjectData *pobj = var.getObjectData();
        if (vars.find(pobj) != vars.end()) {
          return true;
        }
        vars.insert(pobj);

        if (pobj->o_toArray().get()->hasInternalReference(vars)) {
          return true;
        }
      } else if (var.isArray() &&
                 var.getArrayData()->hasInternalReference(vars)) {
        return true;
      }
    }
  }
  return false;
}
Esempio n. 3
0
static void php_array_replace_recursive(PointerSet &seen, bool check,
                                        Array &arr1, CArrRef arr2) {
  if (check) {
    if (seen.find((void*)arr1.get()) != seen.end()) {
      raise_warning("array_replace_recursive(): recursion detected");
      return;
    }
    seen.insert((void*)arr1.get());
  }

  for (ArrayIter iter(arr2); iter; ++iter) {
    Variant key = iter.first();
    CVarRef value = iter.secondRef();
    if (arr1.exists(key, true) && value.isArray()) {
      Variant &v = arr1.lvalAt(key, AccessFlags::Key);
      if (v.isArray()) {
        Array subarr1 = v.toArray();
        const ArrNR& arr_value = value.toArrNR();
        php_array_replace_recursive(seen, v.isReferenced(), subarr1,
                                    arr_value);
        v = subarr1;
      } else {
        arr1.set(key, value, true);
      }
    } else {
      arr1.lvalAt(key, AccessFlags::Key).setWithRef(value);
    }
  }

  if (check) {
    seen.erase((void*)arr1.get());
  }
}
Esempio n. 4
0
static void php_array_merge_recursive(PointerSet &seen, bool check,
                                      Array &arr1, CArrRef arr2) {
  if (check) {
    if (seen.find((void*)arr1.get()) != seen.end()) {
      raise_warning("array_merge_recursive(): recursion detected");
      return;
    }
    seen.insert((void*)arr1.get());
  }

  for (ArrayIter iter(arr2); iter; ++iter) {
    Variant key(iter.first());
    CVarRef value(iter.secondRef());
    if (key.isNumeric()) {
      arr1.appendWithRef(value);
    } else if (arr1.exists(key, true)) {
      // There is no need to do toKey() conversion, for a key that is already
      // in the array.
      Variant &v = arr1.lvalAt(key, AccessFlags::Key);
      Array subarr1(v.toArray()->copy());
      php_array_merge_recursive(seen, v.isReferenced(), subarr1,
                                value.toArray());
      v.unset(); // avoid contamination of the value that was strongly bound
      v = subarr1;
    } else {
      arr1.addLval(key, true).setWithRef(value);
    }
  }

  if (check) {
    seen.erase((void*)arr1.get());
  }
}
Esempio n. 5
0
inline bool DataWalker::markVisited(
    void* pvar,
    DataFeature& features,
    PointerSet& visited) const {
  if (!visited.insert(pvar).second) {
    features.isCircular = true;
    return true;
  }
  return false;
}
Esempio n. 6
0
inline
bool DataWalker::markVisited(
    void* pvar,
    DataFeature& features,
    PointerSet& visited) const {
  if (visited.find(pvar) != visited.end()) {
    features.m_circular = true;
    return true;
  }
  visited.insert(pvar);
  return false;
}
Esempio n. 7
0
bool ArrayData::hasInternalReference(PointerSet &vars,
                                     bool ds /* = false */) const {
    if (isSharedMap()) return false;
    for (ArrayIter iter(this); iter; ++iter) {
        CVarRef var = iter.secondRef();
        if (var.isReferenced()) {
            Variant *pvar = var.getVariantData();
            if (vars.find(pvar) != vars.end()) {
                return true;
            }
            vars.insert(pvar);
        }
        if (var.isObject()) {
            ObjectData *pobj = var.getObjectData();
            if (vars.find(pobj) != vars.end()) {
                return true;
            }
            vars.insert(pobj);
            if (pobj->o_instanceof("Serializable")) {
                if (ds) {
                    // We want to detect Serializable object as well
                    return true;
                } else {
                    // Serializable object does not have internal reference issue
                    return false;
                }
            }
            if (pobj->o_toArray().get()->hasInternalReference(vars, ds)) {
                return true;
            }
        } else if (var.isArray() &&
                   var.getArrayData()->hasInternalReference(vars, ds)) {
            return true;
        }
    }
    return false;
}
Esempio n. 8
0
APCHandle* APCObject::MakeShared(
    ObjectData* objectData, size_t& size, bool inner, bool createFromSer) {
  if (!canOptimize(objectData)) {
    return createFromSer ? MakeShared(apc_serialize(objectData), size) :
        nullptr;
  }

  if (objectData->isCollection()) {
    return APCCollection::MakeShared(objectData, size, inner);
  }

  bool serialize = false;
  if (!inner) {
    PointerSet visited;
    visited.insert(reinterpret_cast<void*>(objectData));
    traverseDataRecursive(objectData,
        [&](const Variant& var) {
          if (var.isReferenced()) {
            Variant *pvar = var.getRefData();
            if (chekVisited(visited, pvar)) {
              serialize = true;
              return true;
            }
          }

          DataType type = var.getType();
          if (type == KindOfObject) {
            auto data = var.getObjectData();
            if (chekVisited(visited, reinterpret_cast<void*>(data))) {
              serialize = true;
              return true;
            }
          } else if (type == KindOfResource) {
            serialize = true;
            return true;
          }
          return false;
        }
    );
  }

  if (serialize) {
    return createFromSer ? MakeShared(apc_serialize(objectData), size) :
                           nullptr;
  }
  return Construct(objectData, size);
}