Examples with MaybeNullException com.google.security.zynamics.binnavi.Exceptions.MaybeNullException used on opensource projects

Example 6 with MaybeNullException

use of com.google.security.zynamics.binnavi.Exceptions.MaybeNullException in project binnavi by google.

the class ZyCodeNodeBuilder method buildFunctionLine.

/**
 * Builds the function line of a code node. This line gives information about the function from
 * where the code node originally came from.
 *
 * @param node The node that provides the raw data.
 * @param content The node content where the function line is added.
 * @param modifier Calculates the address strings. This argument can be null.
 */
private static void buildFunctionLine(final INaviCodeNode node, final ZyLabelContent content, final INodeModifier modifier) {
    try {
        final INaviFunction parentFunction = node.getParentFunction();
        final String address = modifier == null ? parentFunction.getAddress().toHexString() : modifier.getAddress(parentFunction.getModule(), new UnrelocatedAddress(parentFunction.getAddress()), true);
        final String name = parentFunction.getName();
        content.addLineContent(new ZyLineContent(address + PADDING_AFTER_FUNCTION_ADDRESS + parentFunction.getModule().getConfiguration().getName() + "::" + name, BOLD_FONT, Lists.newArrayList(new CStyleRunData(0, -1, Color.BLACK)), null));
    } catch (final MaybeNullException exception) {
    // If there is no parent function, the parent function is not shown in the code node.
    }
}

Example 7 with MaybeNullException

use of com.google.security.zynamics.binnavi.Exceptions.MaybeNullException in project binnavi by google.

the class CDebuggerPainter method updateDebuggerHighlighting.

/**
 * Updates the program counter highlighting in a whole graph.
 *
 * @param graph The graph where the highlighting is updated.
 * @param address The address of the program counter to be highlighted.
 * @param module The module in which the address is located.
 */
public static void updateDebuggerHighlighting(final ZyGraph graph, final UnrelocatedAddress address, final INaviModule module) {
    Preconditions.checkNotNull(graph, "IE02187: Graph argument can not be null");
    Preconditions.checkNotNull(address, "IE02188: Address argument can not be null");
    graph.iterate(new INodeCallback<NaviNode>() {

        @Override
        public IterationMode next(final NaviNode node) {
            final INaviViewNode rawNode = node.getRawNode();
            if (rawNode instanceof ICodeNode) {
                final INaviCodeNode codeNode = (INaviCodeNode) rawNode;
                try {
                    if (module.equals(codeNode.getParentFunction().getModule())) {
                        updateDebuggerHighlighting(graph, address, node, codeNode);
                    }
                } catch (final MaybeNullException exception) {
                    CUtilityFunctions.logException(exception);
                }
            } else if (rawNode instanceof INaviFunctionNode) {
                final INaviFunctionNode functionNode = (INaviFunctionNode) rawNode;
                if (module.equals(functionNode.getFunction().getModule())) {
                    updateDebuggerHighlighting(address, node, functionNode);
                }
            }
            return IterationMode.CONTINUE;
        }
    });
    ZyZoomHelpers.zoomToAddress(graph, address.getAddress(), module, false);
}

Example 8 with MaybeNullException

use of com.google.security.zynamics.binnavi.Exceptions.MaybeNullException in project binnavi by google.

the class PostgreSQLNodeSaver method saveCodeNodes.

/**
 * Saves the code nodes to the database.
 *
 * @param provider The connection to the database.
 * @param nodes The nodes to save.
 * @param firstNode The database index of the first node.
 * @param codeNodeIndices Index into the nodes list that identifies the code nodes.
 *
 * @throws SQLException Thrown if saving the code node instructions failed.
 */
protected static void saveCodeNodes(final SQLProvider provider, final List<INaviViewNode> nodes, final int firstNode, final List<Integer> codeNodeIndices) throws SQLException {
    if (!codeNodeIndices.isEmpty()) {
        final List<Pair<INaviCodeNode, INaviInstruction>> instructionsWithUnsavedLocalComments = PostgreSQLNodeSaver.saveCodeNodeInstructions(provider, nodes, firstNode, codeNodeIndices);
        final String query = "INSERT INTO " + CTableNames.CODE_NODES_TABLE + "(module_id, node_id, parent_function, comment_id) VALUES (?, ?, ?, ?)";
        final ArrayList<INaviCodeNode> codeNodesWithUnsavedComments = new ArrayList<INaviCodeNode>();
        final PreparedStatement preparedStatement = provider.getConnection().getConnection().prepareStatement(query);
        try {
            for (final int index : codeNodeIndices) {
                final INaviCodeNode codeNode = (INaviCodeNode) nodes.get(index);
                codeNode.setId(firstNode + index);
                INaviFunction function = null;
                try {
                    function = codeNode.getParentFunction();
                } catch (final MaybeNullException e) {
                }
                final int moduleId = Iterables.getLast(codeNode.getInstructions()).getModule().getConfiguration().getId();
                final List<IComment> comment = codeNode.getComments().getLocalCodeNodeComment();
                final Integer commentId = comment == null ? null : comment.size() == 0 ? null : Iterables.getLast(comment).getId();
                if ((comment != null) && (comment.size() != 0) && (commentId == null)) {
                    codeNodesWithUnsavedComments.add(codeNode);
                }
                preparedStatement.setInt(1, moduleId);
                preparedStatement.setInt(2, firstNode + index);
                if (function == null) {
                    preparedStatement.setNull(3, Types.BIGINT);
                } else {
                    preparedStatement.setObject(3, function.getAddress().toBigInteger(), Types.BIGINT);
                }
                if (commentId == null) {
                    preparedStatement.setNull(4, Types.INTEGER);
                } else {
                    preparedStatement.setInt(4, commentId);
                }
                preparedStatement.addBatch();
            }
            preparedStatement.executeBatch();
        } finally {
            preparedStatement.close();
        }
        // implementation.
        for (final INaviCodeNode codeNode : codeNodesWithUnsavedComments) {
            final ArrayList<IComment> codeNodecomments = new ArrayList<IComment>();
            for (final IComment comment : codeNode.getComments().getLocalCodeNodeComment()) {
                try {
                    final Integer commentId = PostgreSQLNodeFunctions.appendLocalCodeNodeComment(provider, codeNode, comment.getComment(), comment.getUser().getUserId());
                    final IComment newComment = new CComment(commentId, comment.getUser(), comment.getParent(), comment.getComment());
                    codeNodecomments.add(newComment);
                } catch (final CouldntSaveDataException exception) {
                    CUtilityFunctions.logException(exception);
                }
            }
            codeNode.getComments().initializeLocalCodeNodeComment(codeNodecomments);
        }
        // implementation.
        for (final Pair<INaviCodeNode, INaviInstruction> pair : instructionsWithUnsavedLocalComments) {
            final ArrayList<IComment> localInstructionComments = new ArrayList<IComment>();
            for (final IComment comment : pair.first().getComments().getLocalInstructionComment(pair.second())) {
                try {
                    final int commentId = PostgreSQLInstructionFunctions.appendLocalInstructionComment(provider, pair.first(), pair.second(), comment.getComment(), comment.getUser().getUserId());
                    final IComment newComment = new CComment(commentId, comment.getUser(), comment.getParent(), comment.getComment());
                    localInstructionComments.add(newComment);
                } catch (final CouldntSaveDataException exception) {
                    CUtilityFunctions.logException(exception);
                }
            }
            pair.first().getComments().initializeLocalInstructionComment(pair.second(), localInstructionComments);
        }
    }
}

Example 9 with MaybeNullException

use of com.google.security.zynamics.binnavi.Exceptions.MaybeNullException in project binnavi by google.

the class ZyOperandBuilder method isVariableAccess.

/**
 * Determines whether a given node represents variable access.
 *
 * @param node The node to check.
 *
 * @return True, if the node represents an expression that accesses a variable. False, otherwise.
 */
private static boolean isVariableAccess(final INaviOperandTreeNode node) {
    try {
        final INaviOperandTreeNode memoryAccessNode = getMemoryAccessNode(node);
        final List<INaviOperandTreeNode> children = memoryAccessNode.getChildren();
        if (children.size() == 1) {
            final INaviOperandTreeNode child = children.get(0);
            switch(child.getType()) {
                case SIZE_PREFIX:
                    return isVariable(child.getChildren().get(0));
                case IMMEDIATE_INTEGER:
                    return isVariable(child);
                case OPERATOR:
                    return isOperatorVariableAccess(child);
                default:
                    return false;
            }
        } else {
            throw new IllegalStateException("IE00703: Invalid tree shape");
        }
    } catch (final MaybeNullException e) {
        return false;
    }
}

Example 10 with MaybeNullException

use of com.google.security.zynamics.binnavi.Exceptions.MaybeNullException in project binnavi by google.

the class PostgreSQLNodeFunctions method appendGlobalCodeNodeComment.

/**
 * Appends a comment as global code node comment to a code node.
 *
 * @param provider The SQL provider used to access the database.
 * @param codeNode The code node to which the global comment will be appended.
 * @param commentText The text of the comment which will be appended.
 * @param userId The user id of the currently active user.
 *
 * @throws CouldntSaveDataException Thrown if the global code node comment could not be saved to
 *         the database.
 */
public static int appendGlobalCodeNodeComment(final SQLProvider provider, final INaviCodeNode codeNode, final String commentText, final Integer userId) throws CouldntSaveDataException {
    Preconditions.checkNotNull(provider, "IE02445: provider argument can not be null");
    Preconditions.checkNotNull(codeNode, "IE02446: codeNode argument can not be null");
    Preconditions.checkNotNull(commentText, "IE02447: commentText argument can not be null");
    Preconditions.checkNotNull(userId, "IE02448: userId argument can not be null");
    final Connection connection = provider.getConnection().getConnection();
    Integer moduleId = null;
    final int nodeId = codeNode.getId();
    final BigInteger nodeAddress = codeNode.getAddress().toBigInteger();
    try {
        moduleId = codeNode.getParentFunction().getModule().getConfiguration().getId();
    } catch (final MaybeNullException exception) {
        throw new CouldntSaveDataException("Error: Can not append global code node comments for nodes without a parent function");
    }
    final String function = "{ ? = call append_global_code_node_comment( ?, ?, ?, ?, ?) }";
    try {
        final CallableStatement appendCommentFunction = connection.prepareCall(function);
        try {
            appendCommentFunction.registerOutParameter(1, Types.INTEGER);
            appendCommentFunction.setInt(2, moduleId);
            appendCommentFunction.setInt(3, nodeId);
            appendCommentFunction.setObject(4, nodeAddress, java.sql.Types.BIGINT);
            appendCommentFunction.setInt(5, userId);
            appendCommentFunction.setString(6, commentText);
            appendCommentFunction.execute();
            final int commentId = appendCommentFunction.getInt(1);
            if (appendCommentFunction.wasNull()) {
                throw new CouldntSaveDataException("Error: Got an comment id of null from the database");
            }
            return commentId;
        } finally {
            appendCommentFunction.close();
        }
    } catch (final SQLException exception) {
        throw new CouldntSaveDataException(exception);
    }
}