MimeTypeSummary.java

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/*
 * Autopsy Forensic Browser
 *
 * Copyright 2020-2021 Basis Technology Corp.
 * Contact: carrier <at> sleuthkit <dot> org
 *
 * 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 org.sleuthkit.autopsy.datasourcesummary.datamodel;

import java.sql.SQLException;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import org.sleuthkit.autopsy.datasourcesummary.datamodel.SleuthkitCaseProvider.SleuthkitCaseProviderException;
import org.sleuthkit.datamodel.DataSource;
import org.sleuthkit.datamodel.TskCoreException;

public class MimeTypeSummary {

    private final SleuthkitCaseProvider provider;

    public MimeTypeSummary() {
        this(SleuthkitCaseProvider.DEFAULT);
    }

    public MimeTypeSummary(SleuthkitCaseProvider provider) {
        this.provider = provider;
    }

    public Long getCountOfFilesForMimeTypes(DataSource currentDataSource, Set<String> setOfMimeTypes)
            throws SleuthkitCaseProvider.SleuthkitCaseProviderException, TskCoreException, SQLException {
        return DataSourceInfoUtilities.getCountOfRegNonSlackFiles(provider.get(), currentDataSource, "mime_type IN " + getSqlSet(setOfMimeTypes));
    }

    public Long getCountOfFilesNotInMimeTypes(DataSource currentDataSource, Set<String> setOfMimeTypes)
            throws SleuthkitCaseProvider.SleuthkitCaseProviderException, TskCoreException, SQLException {
        return DataSourceInfoUtilities.getCountOfRegNonSlackFiles(provider.get(), currentDataSource,
                "mime_type NOT IN " + getSqlSet(setOfMimeTypes)
                + " AND mime_type IS NOT NULL AND mime_type <> '' ");
    }

    public Long getCountOfAllRegularFiles(DataSource dataSource)
            throws SleuthkitCaseProvider.SleuthkitCaseProviderException, TskCoreException, SQLException {
        return DataSourceInfoUtilities.getCountOfRegNonSlackFiles(provider.get(), dataSource, null);
    }

    public Long getCountOfFilesWithNoMimeType(DataSource currentDataSource)
            throws SleuthkitCaseProvider.SleuthkitCaseProviderException, TskCoreException, SQLException {
        return DataSourceInfoUtilities.getCountOfRegNonSlackFiles(provider.get(), currentDataSource, "(mime_type IS NULL OR mime_type = '') ");
    }

    private String getSqlSet(Set<String> setValues) {
        List<String> quotedValues = setValues
                .stream()
                .map(str -> String.format("'%s'", str.replace("'", "")))
                .collect(Collectors.toList());

        String commaSeparatedQuoted = String.join(", ", quotedValues);
        return String.format("(%s) ", commaSeparatedQuoted);
    }
}