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47 changes: 47 additions & 0 deletions
47
cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/graph/OverlayNode.kt
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|---|---|---|
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| /* | ||
| * Copyright (c) 2024, Fraunhofer AISEC. All rights reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| * $$$$$$\ $$$$$$$\ $$$$$$\ | ||
| * $$ __$$\ $$ __$$\ $$ __$$\ | ||
| * $$ / \__|$$ | $$ |$$ / \__| | ||
| * $$ | $$$$$$$ |$$ |$$$$\ | ||
| * $$ | $$ ____/ $$ |\_$$ | | ||
| * $$ | $$\ $$ | $$ | $$ | | ||
| * \$$$$$ |$$ | \$$$$$ | | ||
| * \______/ \__| \______/ | ||
| * | ||
| */ | ||
| package de.fraunhofer.aisec.cpg.graph | ||
|
|
||
| import de.fraunhofer.aisec.cpg.graph.edges.overlay.OverlaySingleEdge | ||
| import de.fraunhofer.aisec.cpg.graph.edges.unwrapping | ||
| import org.neo4j.ogm.annotation.Relationship | ||
|
|
||
| /** | ||
| * Represents an extra node added to the CPG. These nodes can live next to the regular nodes, | ||
| * typically having shared edges to extend the original graph. | ||
| */ | ||
| abstract class OverlayNode() : Node() { | ||
| @Relationship(value = "OVERLAY", direction = Relationship.Direction.INCOMING) | ||
| /** All [OverlayNode]s nodes are connected to an original cpg [Node] by this. */ | ||
| val underlyingNodeEdge: OverlaySingleEdge = | ||
| OverlaySingleEdge( | ||
| this, | ||
| of = null, | ||
| mirrorProperty = Node::overlayEdges, | ||
| outgoing = false, | ||
| ) | ||
| var underlyingNode by unwrapping(OverlayNode::underlyingNodeEdge) | ||
| } |
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cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/graph/concepts/Concept.kt
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| /* | ||
| * Copyright (c) 2024, Fraunhofer AISEC. All rights reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| * $$$$$$\ $$$$$$$\ $$$$$$\ | ||
| * $$ __$$\ $$ __$$\ $$ __$$\ | ||
| * $$ / \__|$$ | $$ |$$ / \__| | ||
| * $$ | $$$$$$$ |$$ |$$$$\ | ||
| * $$ | $$ ____/ $$ |\_$$ | | ||
| * $$ | $$\ $$ | $$ | $$ | | ||
| * \$$$$$ |$$ | \$$$$$ | | ||
| * \______/ \__| \______/ | ||
| * | ||
| */ | ||
| package de.fraunhofer.aisec.cpg.graph.concepts | ||
|
|
||
| import de.fraunhofer.aisec.cpg.graph.OverlayNode | ||
|
|
||
| /** | ||
| * Represents a new concept added to the CPG. This is intended for modelling "concepts" like | ||
| * logging, files, databases. The relevant operations on this concept are modeled as [Operation]s | ||
| * and stored in [ops]. | ||
| */ | ||
| abstract class Concept<T : Operation>() : OverlayNode() { | ||
| /** All [Operation]s belonging to this concept. */ | ||
| val ops: MutableSet<T> = mutableSetOf() | ||
| } |
37 changes: 37 additions & 0 deletions
37
cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/graph/concepts/Operation.kt
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|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| /* | ||
| * Copyright (c) 2024, Fraunhofer AISEC. All rights reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| * $$$$$$\ $$$$$$$\ $$$$$$\ | ||
| * $$ __$$\ $$ __$$\ $$ __$$\ | ||
| * $$ / \__|$$ | $$ |$$ / \__| | ||
| * $$ | $$$$$$$ |$$ |$$$$\ | ||
| * $$ | $$ ____/ $$ |\_$$ | | ||
| * $$ | $$\ $$ | $$ | $$ | | ||
| * \$$$$$ |$$ | \$$$$$ | | ||
| * \______/ \__| \______/ | ||
| * | ||
| */ | ||
| package de.fraunhofer.aisec.cpg.graph.concepts | ||
|
|
||
| import de.fraunhofer.aisec.cpg.graph.OverlayNode | ||
|
|
||
| /** | ||
| * Represents an operation executed on/with a [Concept] (stored in [concept]). This is typically a | ||
| * `write` on a file or log object or an `execute` on a database. | ||
| */ | ||
| abstract class Operation( | ||
| /** The [Concept] this operation belongs to. */ | ||
| val concept: Concept<*> | ||
| ) : OverlayNode() |
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88 changes: 88 additions & 0 deletions
88
cpg-core/src/main/kotlin/de/fraunhofer/aisec/cpg/graph/edges/overlay/Overlay.kt
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| /* | ||
| * Copyright (c) 2024, Fraunhofer AISEC. All rights reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| * $$$$$$\ $$$$$$$\ $$$$$$\ | ||
| * $$ __$$\ $$ __$$\ $$ __$$\ | ||
| * $$ / \__|$$ | $$ |$$ / \__| | ||
| * $$ | $$$$$$$ |$$ |$$$$\ | ||
| * $$ | $$ ____/ $$ |\_$$ | | ||
| * $$ | $$\ $$ | $$ | $$ | | ||
| * \$$$$$ |$$ | \$$$$$ | | ||
| * \______/ \__| \______/ | ||
| * | ||
| */ | ||
| package de.fraunhofer.aisec.cpg.graph.edges.overlay | ||
|
|
||
| import de.fraunhofer.aisec.cpg.graph.Node | ||
| import de.fraunhofer.aisec.cpg.graph.edges.Edge | ||
| import de.fraunhofer.aisec.cpg.graph.edges.collections.EdgeSet | ||
| import de.fraunhofer.aisec.cpg.graph.edges.collections.EdgeSingletonList | ||
| import de.fraunhofer.aisec.cpg.graph.edges.collections.MirroredEdgeCollection | ||
| import kotlin.reflect.KProperty | ||
|
|
||
| /** | ||
| * Represents an edge in a graph specifically used for overlay purposes. | ||
| * | ||
| * @param start The starting node of the edge. | ||
| * @param end The ending node of the edge. | ||
| * @constructor Constructs an [OverlayEdge] with a specified [start] and [end] node. | ||
| * @property labels A predefined set of labels associated with the OverlayEdge. By default, it is | ||
| * initialized with the label "OVERLAY". | ||
| */ | ||
| class OverlayEdge(start: Node, end: Node) : Edge<Node>(start, end) { | ||
| override var labels: Set<String> = setOf("OVERLAY") | ||
| } | ||
|
|
||
| /** | ||
| * Represents a single edge in an overlay graph structure, linking nodes with specific properties. | ||
| * | ||
| * @param thisRef The current node that the edge originates from or is associated with. | ||
| * @param of The optional target node of the edge. | ||
| * @param mirrorProperty The property representing a mutable collection of mirrored overlay edges. | ||
| * @param outgoing A flag indicating whether the edge is outgoing (default is true). | ||
| * @constructor Initializes the [OverlaySingleEdge] instance with the provided parameters. | ||
| */ | ||
| class OverlaySingleEdge( | ||
| thisRef: Node, | ||
| of: Node?, | ||
| override var mirrorProperty: KProperty<MutableCollection<OverlayEdge>>, | ||
| outgoing: Boolean = true, | ||
| ) : | ||
| EdgeSingletonList<Node, Node?, OverlayEdge>( | ||
| thisRef = thisRef, | ||
| init = ::OverlayEdge, | ||
| outgoing = outgoing, | ||
| of = of, | ||
| ), | ||
| MirroredEdgeCollection<Node, OverlayEdge> | ||
|
|
||
| /** | ||
| * Represents a collection of overlay edges connected to a specific node. This class is used to | ||
| * manage and define relationships between nodes through overlay edges, providing both outgoing and | ||
| * incoming edge handling capabilities. | ||
| * | ||
| * @param thisRef The reference node that the overlays are associated with. | ||
| * @param mirrorProperty A reference to a property that mirrors the collection of overlay edges. | ||
| * @param outgoing A boolean indicating whether the edges managed by this collection are outgoing. | ||
| * @constructor Initializes the [Overlays] object with a reference node, a property for edge | ||
| * mirroring, and a direction to specify outgoing or incoming edges. | ||
| */ | ||
| class Overlays( | ||
| thisRef: Node, | ||
| override var mirrorProperty: KProperty<MutableCollection<OverlayEdge>>, | ||
| outgoing: Boolean, | ||
| ) : | ||
| EdgeSet<Node, OverlayEdge>(thisRef = thisRef, init = ::OverlayEdge, outgoing = outgoing), | ||
| MirroredEdgeCollection<Node, OverlayEdge> |
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