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/*
 * Copyright 2004-2019 H2 Group. Multiple-Licensed under the MPL 2.0,
 * and the EPL 1.0 (https://h2database.com/html/license.html).
 * Initial Developer: H2 Group
 */
package org.h2.server.web;

import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.io.StringReader;
import java.io.StringWriter;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.math.BigDecimal;
import java.nio.charset.StandardCharsets;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.ParameterMetaData;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Types;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
import java.util.Random;

import org.h2.api.ErrorCode;
import org.h2.bnf.Bnf;
import org.h2.bnf.context.DbColumn;
import org.h2.bnf.context.DbContents;
import org.h2.bnf.context.DbSchema;
import org.h2.bnf.context.DbTableOrView;
import org.h2.command.Parser;
import org.h2.engine.Constants;
import org.h2.engine.SysProperties;
import org.h2.jdbc.JdbcException;
import org.h2.message.DbException;
import org.h2.security.SHA256;
import org.h2.tools.Backup;
import org.h2.tools.ChangeFileEncryption;
import org.h2.tools.ConvertTraceFile;
import org.h2.tools.CreateCluster;
import org.h2.tools.DeleteDbFiles;
import org.h2.tools.Recover;
import org.h2.tools.Restore;
import org.h2.tools.RunScript;
import org.h2.tools.Script;
import org.h2.tools.SimpleResultSet;
import org.h2.util.JdbcUtils;
import org.h2.util.NetUtils;
import org.h2.util.NetworkConnectionInfo;
import org.h2.util.Profiler;
import org.h2.util.ScriptReader;
import org.h2.util.SortedProperties;
import org.h2.util.StringUtils;
import org.h2.util.Tool;
import org.h2.util.Utils;

/**
 * For each connection to a session, an object of this class is created.
 * This class is used by the H2 Console.
 */
public class WebApp {

    /**
     * The web server.
     */
    protected final WebServer server;

    /**
     * The session.
     */
    protected WebSession session;

    /**
     * The session attributes
     */
    protected Properties attributes;

    /**
     * The mime type of the current response.
     */
    protected String mimeType;

    /**
     * Whether the response can be cached.
     */
    protected boolean cache;

    /**
     * Whether to close the connection.
     */
    protected boolean stop;

    /**
     * The language in the HTTP header.
     */
    protected String headerLanguage;

    private Profiler profiler;

    WebApp(WebServer server) {
        this.server = server;
    }

    /**
     * Set the web session and attributes.
     *
     * @param session the session
     * @param attributes the attributes
     */
    void setSession(WebSession session, Properties attributes) {
        this.session = session;
        this.attributes = attributes;
    }

    /**
     * Process an HTTP request.
     *
     * @param file the file that was requested
     * @param networkConnectionInfo the network connection information
     * @return the name of the file to return to the client
     */
    String processRequest(String file, NetworkConnectionInfo networkConnectionInfo) {
        int index = file.lastIndexOf('.');
        String suffix;
        if (index >= 0) {
            suffix = file.substring(index + 1);
        } else {
            suffix = "";
        }
        if ("ico".equals(suffix)) {
            mimeType = "image/x-icon";
            cache = true;
        } else if ("gif".equals(suffix)) {
            mimeType = "image/gif";
            cache = true;
        } else if ("css".equals(suffix)) {
            cache = true;
            mimeType = "text/css";
        } else if ("html".equals(suffix) ||
                "do".equals(suffix) ||
                "jsp".equals(suffix)) {
            cache = false;
            mimeType = "text/html";
            if (session == null) {
                session = server.createNewSession(
                        NetUtils.ipToShortForm(null, networkConnectionInfo.getClientAddr(), false).toString());
                if (!"notAllowed.jsp".equals(file)) {
                    file = "index.do";
                }
            }
        } else if ("js".equals(suffix)) {
            cache = true;
            mimeType = "text/javascript";
        } else {
            cache = true;
            mimeType = "application/octet-stream";
        }
        trace("mimeType=" + mimeType);
        trace(file);
        if (file.endsWith(".do")) {
            file = process(file, networkConnectionInfo);
        } else if (file.endsWith(".jsp")) {
            switch (file) {
            case "admin.jsp":
            case "tools.jsp":
                if (!checkAdmin(file)) {
                    file = process("adminLogin.do", networkConnectionInfo);
                }
            }
        }
        return file;
    }

    private static String getComboBox(String[] elements, String selected) {
        StringBuilder buff = new StringBuilder();
        for (String value : elements) {
            buff.append("");
        }
        return buff.toString();
    }

    private static String getComboBox(String[][] elements, String selected) {
        StringBuilder buff = new StringBuilder();
        for (String[] n : elements) {
            buff.append("");
        }
        return buff.toString();
    }

    private String process(String file, NetworkConnectionInfo networkConnectionInfo) {
        trace("process " + file);
        while (file.endsWith(".do")) {
            switch (file) {
            case "login.do":
                file = login(networkConnectionInfo);
                break;
            case "index.do":
                file = index();
                break;
            case "logout.do":
                file = logout();
                break;
            case "settingRemove.do":
                file = settingRemove();
                break;
            case "settingSave.do":
                file = settingSave();
                break;
            case "test.do":
                file = test(networkConnectionInfo);
                break;
            case "query.do":
                file = query();
                break;
            case "tables.do":
                file = tables();
                break;
            case "editResult.do":
                file = editResult();
                break;
            case "getHistory.do":
                file = getHistory();
                break;
            case "admin.do":
                file = checkAdmin(file) ? admin() : "adminLogin.do";
                break;
            case "adminSave.do":
                file = checkAdmin(file) ? adminSave() : "adminLogin.do";
                break;
            case "adminStartTranslate.do":
                file = checkAdmin(file) ? adminStartTranslate() : "adminLogin.do";
                break;
            case "adminShutdown.do":
                file = checkAdmin(file) ? adminShutdown() : "adminLogin.do";
                break;
            case "autoCompleteList.do":
                file = autoCompleteList();
                break;
            case "tools.do":
                file = checkAdmin(file) ? tools() : "adminLogin.do";
                break;
            case "adminLogin.do":
                file = adminLogin();
                break;
            default:
                file = "error.jsp";
                break;
            }
        }
        trace("return " + file);
        return file;
    }

    private boolean checkAdmin(String file) {
        Boolean b = (Boolean) session.get("admin");
        if (b != null && b) {
            return true;
        }
        String key = server.getKey();
        if (key != null && key.equals(session.get("key"))) {
            return true;
        }
        session.put("adminBack", file);
        return false;
    }

    private String adminLogin() {
        String password = attributes.getProperty("password");
        if (password == null || password.isEmpty() || !server.checkAdminPassword(password)) {
            return "adminLogin.jsp";
        }
        String back = (String) session.remove("adminBack");
        session.put("admin", true);
        return back != null ? back : "admin.do";
    }

    private String autoCompleteList() {
        String query = (String) attributes.get("query");
        boolean lowercase = false;
        String tQuery = query.trim();
        if (!tQuery.isEmpty() && Character.isLowerCase(tQuery.charAt(0))) {
            lowercase = true;
        }
        try {
            String sql = query;
            if (sql.endsWith(";")) {
                sql += " ";
            }
            ScriptReader reader = new ScriptReader(new StringReader(sql));
            reader.setSkipRemarks(true);
            String lastSql = "";
            while (true) {
                String n = reader.readStatement();
                if (n == null) {
                    break;
                }
                lastSql = n;
            }
            String result = "";
            if (reader.isInsideRemark()) {
                if (reader.isBlockRemark()) {
                    result = "1#(End Remark)# */\n" + result;
                } else {
                    result = "1#(Newline)#\n" + result;
                }
            } else {
                sql = lastSql;
                while (sql.length() > 0 && sql.charAt(0) <= ' ') {
                    sql = sql.substring(1);
                }
                String tSql = sql.trim();
                if (!tSql.isEmpty() && Character.isLowerCase(tSql.charAt(0))) {
                    lowercase = true;
                }
                Bnf bnf = session.getBnf();
                if (bnf == null) {
                    return "autoCompleteList.jsp";
                }
                HashMap map = bnf.getNextTokenList(sql);
                String space = "";
                if (sql.length() > 0) {
                    char last = sql.charAt(sql.length() - 1);
                    if (!Character.isWhitespace(last) && (last != '.' &&
                            last >= ' ' && last != '\'' && last != '"')) {
                        space = " ";
                    }
                }
                ArrayList list = new ArrayList<>(map.size());
                for (Map.Entry entry : map.entrySet()) {
                    String key = entry.getKey();
                    String value = entry.getValue();
                    String type = String.valueOf(key.charAt(0));
                    if (Integer.parseInt(type) > 2) {
                        continue;
                    }
                    key = key.substring(2);
                    if (Character.isLetter(key.charAt(0)) && lowercase) {
                        key = StringUtils.toLowerEnglish(key);
                        value = StringUtils.toLowerEnglish(value);
                    }
                    if (key.equals(value) && !".".equals(value)) {
                        value = space + value;
                    }
                    key = StringUtils.urlEncode(key);
                    key = key.replace('+', ' ');
                    value = StringUtils.urlEncode(value);
                    value = value.replace('+', ' ');
                    list.add(type + "#" + key + "#" + value);
                }
                Collections.sort(list);
                if (query.endsWith("\n") || tQuery.endsWith(";")) {
                    list.add(0, "1#(Newline)#\n");
                }
                result = StringUtils.join(new StringBuilder(), list, "|").toString();
            }
            session.put("autoCompleteList", result);
        } catch (Throwable e) {
            server.traceError(e);
        }
        return "autoCompleteList.jsp";
    }

    private String admin() {
        session.put("port", Integer.toString(server.getPort()));
        session.put("allowOthers", Boolean.toString(server.getAllowOthers()));
        session.put("ssl", String.valueOf(server.getSSL()));
        session.put("sessions", server.getSessions());
        return "admin.jsp";
    }

    private String adminSave() {
        try {
            Properties prop = new SortedProperties();
            int port = Integer.decode((String) attributes.get("port"));
            prop.setProperty("webPort", Integer.toString(port));
            server.setPort(port);
            boolean allowOthers = Utils.parseBoolean((String) attributes.get("allowOthers"), false, false);
            prop.setProperty("webAllowOthers", String.valueOf(allowOthers));
            server.setAllowOthers(allowOthers);
            boolean ssl = Utils.parseBoolean((String) attributes.get("ssl"), false, false);
            prop.setProperty("webSSL", String.valueOf(ssl));
            server.setSSL(ssl);
            byte[] adminPassword = server.getAdminPassword();
            if (adminPassword != null) {
                prop.setProperty("webAdminPassword", StringUtils.convertBytesToHex(adminPassword));
            }
            server.saveProperties(prop);
        } catch (Exception e) {
            trace(e.toString());
        }
        return admin();
    }

    private String tools() {
        try {
            String toolName = (String) attributes.get("tool");
            session.put("tool", toolName);
            String args = (String) attributes.get("args");
            String[] argList = StringUtils.arraySplit(args, ',', false);
            Tool tool = null;
            if ("Backup".equals(toolName)) {
                tool = new Backup();
            } else if ("Restore".equals(toolName)) {
                tool = new Restore();
            } else if ("Recover".equals(toolName)) {
                tool = new Recover();
            } else if ("DeleteDbFiles".equals(toolName)) {
                tool = new DeleteDbFiles();
            } else if ("ChangeFileEncryption".equals(toolName)) {
                tool = new ChangeFileEncryption();
            } else if ("Script".equals(toolName)) {
                tool = new Script();
            } else if ("RunScript".equals(toolName)) {
                tool = new RunScript();
            } else if ("ConvertTraceFile".equals(toolName)) {
                tool = new ConvertTraceFile();
            } else if ("CreateCluster".equals(toolName)) {
                tool = new CreateCluster();
            } else {
                throw DbException.throwInternalError(toolName);
            }
            ByteArrayOutputStream outBuff = new ByteArrayOutputStream();
            PrintStream out = new PrintStream(outBuff, false, "UTF-8");
            tool.setOut(out);
            try {
                tool.runTool(argList);
                out.flush();
                String o = new String(outBuff.toByteArray(), StandardCharsets.UTF_8);
                String result = PageParser.escapeHtml(o);
                session.put("toolResult", result);
            } catch (Exception e) {
                session.put("toolResult", getStackTrace(0, e, true));
            }
        } catch (Exception e) {
            server.traceError(e);
        }
        return "tools.jsp";
    }

    private String adminStartTranslate() {
        Map p = Map.class.cast(session.map.get("text"));
        @SuppressWarnings("unchecked")
        Map p2 = (Map) p;
        String file = server.startTranslate(p2);
        session.put("translationFile", file);
        return "helpTranslate.jsp";
    }

    /**
     * Stop the application and the server.
     *
     * @return the page to display
     */
    protected String adminShutdown() {
        server.shutdown();
        return "admin.jsp";
    }

    private String index() {
        String[][] languageArray = WebServer.LANGUAGES;
        String language = (String) attributes.get("language");
        Locale locale = session.locale;
        if (language != null) {
            if (locale == null || !StringUtils.toLowerEnglish(
                    locale.getLanguage()).equals(language)) {
                locale = new Locale(language, "");
                server.readTranslations(session, locale.getLanguage());
                session.put("language", language);
                session.locale = locale;
            }
        } else {
            language = (String) session.get("language");
        }
        if (language == null) {
            // if the language is not yet known
            // use the last header
            language = headerLanguage;
        }
        session.put("languageCombo", getComboBox(languageArray, language));
        String[] settingNames = server.getSettingNames();
        String setting = attributes.getProperty("setting");
        if (setting == null && settingNames.length > 0) {
            setting = settingNames[0];
        }
        String combobox = getComboBox(settingNames, setting);
        session.put("settingsList", combobox);
        ConnectionInfo info = server.getSetting(setting);
        if (info == null) {
            info = new ConnectionInfo();
        }
        session.put("setting", PageParser.escapeHtmlData(setting));
        session.put("name", PageParser.escapeHtmlData(setting));
        session.put("driver", PageParser.escapeHtmlData(info.driver));
        session.put("url", PageParser.escapeHtmlData(info.url));
        session.put("user", PageParser.escapeHtmlData(info.user));
        return "index.jsp";
    }

    private String getHistory() {
        int id = Integer.parseInt(attributes.getProperty("id"));
        String sql = session.getCommand(id);
        session.put("query", PageParser.escapeHtmlData(sql));
        return "query.jsp";
    }

    private static int addColumns(boolean mainSchema, DbTableOrView table,
            StringBuilder buff, int treeIndex, boolean showColumnTypes,
            StringBuilder columnsBuffer) {
        DbColumn[] columns = table.getColumns();
        for (int i = 0; columns != null && i < columns.length; i++) {
            DbColumn column = columns[i];
            if (columnsBuffer.length() > 0) {
                columnsBuffer.append(' ');
            }
            columnsBuffer.append(column.getName());
            String col = escapeIdentifier(column.getName());
            String level = mainSchema ? ", 1, 1" : ", 2, 2";
            buff.append("setNode(").append(treeIndex).append(level)
                    .append(", 'column', '")
                    .append(PageParser.escapeJavaScript(column.getName()))
                    .append("', 'javascript:ins(\\'").append(col).append("\\')');\n");
            treeIndex++;
            if (mainSchema && showColumnTypes) {
                buff.append("setNode(").append(treeIndex)
                        .append(", 2, 2, 'type', '")
                        .append(PageParser.escapeJavaScript(column.getDataType()))
                        .append("', null);\n");
                treeIndex++;
            }
        }
        return treeIndex;
    }

    private static String escapeIdentifier(String name) {
        return StringUtils.urlEncode(
                PageParser.escapeJavaScript(name)).replace('+', ' ');
    }

    /**
     * This class represents index information for the GUI.
     */
    static class IndexInfo {

        /**
         * The index name.
         */
        String name;

        /**
         * The index type name.
         */
        String type;

        /**
         * The indexed columns.
         */
        String columns;
    }

    private static int addIndexes(boolean mainSchema, DatabaseMetaData meta,
            String table, String schema, StringBuilder buff, int treeIndex)
            throws SQLException {
        ResultSet rs;
        try {
            rs = meta.getIndexInfo(null, schema, table, false, true);
        } catch (SQLException e) {
            // SQLite
            return treeIndex;
        }
        HashMap indexMap = new HashMap<>();
        while (rs.next()) {
            String name = rs.getString("INDEX_NAME");
            IndexInfo info = indexMap.get(name);
            if (info == null) {
                int t = rs.getInt("TYPE");
                String type;
                if (t == DatabaseMetaData.tableIndexClustered) {
                    type = "";
                } else if (t == DatabaseMetaData.tableIndexHashed) {
                    type = " (${text.tree.hashed})";
                } else if (t == DatabaseMetaData.tableIndexOther) {
                    type = "";
                } else {
                    type = null;
                }
                if (name != null && type != null) {
                    info = new IndexInfo();
                    info.name = name;
                    type = (rs.getBoolean("NON_UNIQUE") ?
                            "${text.tree.nonUnique}" : "${text.tree.unique}") + type;
                    info.type = type;
                    info.columns = rs.getString("COLUMN_NAME");
                    indexMap.put(name, info);
                }
            } else {
                info.columns += ", " + rs.getString("COLUMN_NAME");
            }
        }
        rs.close();
        if (indexMap.size() > 0) {
            String level = mainSchema ? ", 1, 1" : ", 2, 1";
            String levelIndex = mainSchema ? ", 2, 1" : ", 3, 1";
            String levelColumnType = mainSchema ? ", 3, 2" : ", 4, 2";
            buff.append("setNode(").append(treeIndex).append(level)
                    .append(", 'index_az', '${text.tree.indexes}', null);\n");
            treeIndex++;
            for (IndexInfo info : indexMap.values()) {
                buff.append("setNode(").append(treeIndex).append(levelIndex)
                        .append(", 'index', '")
                        .append(PageParser.escapeJavaScript(info.name))
                        .append("', null);\n");
                treeIndex++;
                buff.append("setNode(").append(treeIndex).append(levelColumnType)
                        .append(", 'type', '").append(info.type).append("', null);\n");
                treeIndex++;
                buff.append("setNode(").append(treeIndex).append(levelColumnType)
                        .append(", 'type', '")
                        .append(PageParser.escapeJavaScript(info.columns))
                        .append("', null);\n");
                treeIndex++;
            }
        }
        return treeIndex;
    }

    private int addTablesAndViews(DbSchema schema, boolean mainSchema,
            StringBuilder buff, int treeIndex) throws SQLException {
        if (schema == null) {
            return treeIndex;
        }
        Connection conn = session.getConnection();
        DatabaseMetaData meta = session.getMetaData();
        int level = mainSchema ? 0 : 1;
        boolean showColumns = mainSchema || !schema.isSystem;
        String indentation = ", " + level + ", " + (showColumns ? "1" : "2") + ", ";
        String indentNode = ", " + (level + 1) + ", 2, ";
        DbTableOrView[] tables = schema.getTables();
        if (tables == null) {
            return treeIndex;
        }
        boolean isOracle = schema.getContents().isOracle();
        boolean notManyTables = tables.length < SysProperties.CONSOLE_MAX_TABLES_LIST_INDEXES;
        for (DbTableOrView table : tables) {
            if (table.isView()) {
                continue;
            }
            int tableId = treeIndex;
            String tab = table.getQuotedName();
            if (!mainSchema) {
                tab = schema.quotedName + "." + tab;
            }
            tab = escapeIdentifier(tab);
            buff.append("setNode(").append(treeIndex).append(indentation)
                    .append(" 'table', '")
                    .append(PageParser.escapeJavaScript(table.getName()))
                    .append("', 'javascript:ins(\\'").append(tab).append("\\',true)');\n");
            treeIndex++;
            if (mainSchema || showColumns) {
                StringBuilder columnsBuffer = new StringBuilder();
                treeIndex = addColumns(mainSchema, table, buff, treeIndex,
                        notManyTables, columnsBuffer);
                if (!isOracle && notManyTables) {
                    treeIndex = addIndexes(mainSchema, meta, table.getName(),
                            schema.name, buff, treeIndex);
                }
                buff.append("addTable('")
                        .append(PageParser.escapeJavaScript(table.getName())).append("', '")
                        .append(PageParser.escapeJavaScript(columnsBuffer.toString())).append("', ")
                        .append(tableId).append(");\n");
            }
        }
        tables = schema.getTables();
        for (DbTableOrView view : tables) {
            if (!view.isView()) {
                continue;
            }
            int tableId = treeIndex;
            String tab = view.getQuotedName();
            if (!mainSchema) {
                tab = view.getSchema().quotedName + "." + tab;
            }
            tab = escapeIdentifier(tab);
            buff.append("setNode(").append(treeIndex).append(indentation)
                    .append(" 'view', '")
                    .append(PageParser.escapeJavaScript(view.getName()))
                    .append("', 'javascript:ins(\\'").append(tab).append("\\',true)');\n");
            treeIndex++;
            if (mainSchema) {
                StringBuilder columnsBuffer = new StringBuilder();
                treeIndex = addColumns(mainSchema, view, buff,
                        treeIndex, notManyTables, columnsBuffer);
                if (schema.getContents().isH2()) {

                    try (PreparedStatement prep = conn.prepareStatement("SELECT * FROM " +
                                "INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME=?")) {
                        prep.setString(1, view.getName());
                        ResultSet rs = prep.executeQuery();
                        if (rs.next()) {
                            String sql = rs.getString("SQL");
                            buff.append("setNode(").append(treeIndex)
                                    .append(indentNode)
                                    .append(" 'type', '")
                                    .append(PageParser.escapeJavaScript(sql))
                                    .append("', null);\n");
                            treeIndex++;
                        }
                        rs.close();
                    }
                }
                buff.append("addTable('")
                        .append(PageParser.escapeJavaScript(view.getName())).append("', '")
                        .append(PageParser.escapeJavaScript(columnsBuffer.toString())).append("', ")
                        .append(tableId).append(");\n");
            }
        }
        return treeIndex;
    }

    private String tables() {
        DbContents contents = session.getContents();
        boolean isH2 = false;
        try {
            String url = (String) session.get("url");
            Connection conn = session.getConnection();
            contents.readContents(url, conn);
            session.loadBnf();
            isH2 = contents.isH2();

            StringBuilder buff = new StringBuilder()
                    .append("setNode(0, 0, 0, 'database', '")
                    .append(PageParser.escapeJavaScript(url))
                    .append("', null);\n");
            int treeIndex = 1;

            DbSchema defaultSchema = contents.getDefaultSchema();
            treeIndex = addTablesAndViews(defaultSchema, true, buff, treeIndex);
            DbSchema[] schemas = contents.getSchemas();
            for (DbSchema schema : schemas) {
                if (schema == defaultSchema || schema == null) {
                    continue;
                }
                buff.append("setNode(").append(treeIndex).append(", 0, 1, 'folder', '")
                        .append(PageParser.escapeJavaScript(schema.name))
                        .append("', null);\n");
                treeIndex++;
                treeIndex = addTablesAndViews(schema, false, buff, treeIndex);
            }
            if (isH2) {
                try (Statement stat = conn.createStatement()) {
                    ResultSet rs = stat.executeQuery("SELECT * FROM " +
                            "INFORMATION_SCHEMA.SEQUENCES ORDER BY SEQUENCE_NAME");
                    for (int i = 0; rs.next(); i++) {
                        if (i == 0) {
                            buff.append("setNode(").append(treeIndex)
                                    .append(", 0, 1, 'sequences', '${text.tree.sequences}', null);\n");
                            treeIndex++;
                        }
                        String name = rs.getString("SEQUENCE_NAME");
                        String current = rs.getString("CURRENT_VALUE");
                        String increment = rs.getString("INCREMENT");
                        buff.append("setNode(").append(treeIndex)
                                .append(", 1, 1, 'sequence', '")
                                .append(PageParser.escapeJavaScript(name))
                                .append("', null);\n");
                        treeIndex++;
                        buff.append("setNode(").append(treeIndex)
                                .append(", 2, 2, 'type', '${text.tree.current}: ")
                                .append(PageParser.escapeJavaScript(current))
                                .append("', null);\n");
                        treeIndex++;
                        if (!"1".equals(increment)) {
                            buff.append("setNode(").append(treeIndex)
                                    .append(", 2, 2, 'type', '${text.tree.increment}: ")
                                    .append(PageParser.escapeJavaScript(increment))
                                    .append("', null);\n");
                            treeIndex++;
                        }
                    }
                    rs.close();
                    rs = stat.executeQuery("SELECT * FROM " +
                            "INFORMATION_SCHEMA.USERS ORDER BY NAME");
                    for (int i = 0; rs.next(); i++) {
                        if (i == 0) {
                            buff.append("setNode(").append(treeIndex)
                                    .append(", 0, 1, 'users', '${text.tree.users}', null);\n");
                            treeIndex++;
                        }
                        String name = rs.getString("NAME");
                        String admin = rs.getString("ADMIN");
                        buff.append("setNode(").append(treeIndex)
                                .append(", 1, 1, 'user', '")
                                .append(PageParser.escapeJavaScript(name))
                                .append("', null);\n");
                        treeIndex++;
                        if (admin.equalsIgnoreCase("TRUE")) {
                            buff.append("setNode(").append(treeIndex)
                                    .append(", 2, 2, 'type', '${text.tree.admin}', null);\n");
                            treeIndex++;
                        }
                    }
                    rs.close();
                }
            }
            DatabaseMetaData meta = session.getMetaData();
            String version = meta.getDatabaseProductName() + " " +
                    meta.getDatabaseProductVersion();
            buff.append("setNode(").append(treeIndex)
                    .append(", 0, 0, 'info', '")
                    .append(PageParser.escapeJavaScript(version))
                    .append("', null);\n")
                    .append("refreshQueryTables();");
            session.put("tree", buff.toString());
        } catch (Exception e) {
            session.put("tree", "");
            session.put("error", getStackTrace(0, e, isH2));
        }
        return "tables.jsp";
    }

    private String getStackTrace(int id, Throwable e, boolean isH2) {
        try {
            StringWriter writer = new StringWriter();
            e.printStackTrace(new PrintWriter(writer));
            String stackTrace = writer.toString();
            stackTrace = PageParser.escapeHtml(stackTrace);
            if (isH2) {
                stackTrace = linkToSource(stackTrace);
            }
            stackTrace = StringUtils.replaceAll(stackTrace, "\t",
                    "    ");
            String message = PageParser.escapeHtml(e.getMessage());
            String error = "" + message +
                    "";
            if (e instanceof SQLException) {
                SQLException se = (SQLException) e;
                error += " " + se.getSQLState() + "/" + se.getErrorCode();
                if (isH2) {
                    int code = se.getErrorCode();
                    error += " (${text.a.help})";
                }
            }
            error += "
" + stackTrace + "
"; error = formatAsError(error); return error; } catch (OutOfMemoryError e2) { server.traceError(e); return e.toString(); } } private static String linkToSource(String s) { try { StringBuilder result = new StringBuilder(s.length()); int idx = s.indexOf("
"); result.append(s, 0, idx); while (true) { int start = s.indexOf("org.h2.", idx); if (start < 0) { result.append(s.substring(idx)); break; } result.append(s, idx, start); int end = s.indexOf(')', start); if (end < 0) { result.append(s.substring(idx)); break; } String element = s.substring(start, end); int open = element.lastIndexOf('('); int dotMethod = element.lastIndexOf('.', open - 1); int dotClass = element.lastIndexOf('.', dotMethod - 1); String packageName = element.substring(0, dotClass); int colon = element.lastIndexOf(':'); String file = element.substring(open + 1, colon); String lineNumber = element.substring(colon + 1, element.length()); String fullFileName = packageName.replace('.', '/') + "/" + file; result.append(""); result.append(element); result.append(""); idx = end; } return result.toString(); } catch (Throwable t) { return s; } } private static String formatAsError(String s) { return "
" + s + "
"; } private String test(NetworkConnectionInfo networkConnectionInfo) { String driver = attributes.getProperty("driver", ""); String url = attributes.getProperty("url", ""); String user = attributes.getProperty("user", ""); String password = attributes.getProperty("password", ""); session.put("driver", driver); session.put("url", url); session.put("user", user); boolean isH2 = url.startsWith("jdbc:h2:"); try { long start = System.currentTimeMillis(); String profOpen = "", profClose = ""; Profiler prof = new Profiler(); prof.startCollecting(); Connection conn; try { conn = server.getConnection(driver, url, user, password, null, networkConnectionInfo); } finally { prof.stopCollecting(); profOpen = prof.getTop(3); } prof = new Profiler(); prof.startCollecting(); try { JdbcUtils.closeSilently(conn); } finally { prof.stopCollecting(); profClose = prof.getTop(3); } long time = System.currentTimeMillis() - start; String success; if (time > 1000) { success = "" + "${text.login.testSuccessful}" + "
" + PageParser.escapeHtml(profOpen) + "
" + PageParser.escapeHtml(profClose) + "
"; } else { success = "
${text.login.testSuccessful}
"; } session.put("error", success); // session.put("error", "${text.login.testSuccessful}"); return "login.jsp"; } catch (Exception e) { session.put("error", getLoginError(e, isH2)); return "login.jsp"; } } /** * Get the formatted login error message. * * @param e the exception * @param isH2 if the current database is a H2 database * @return the formatted error message */ private String getLoginError(Exception e, boolean isH2) { if (e instanceof JdbcException && ((JdbcException) e).getErrorCode() == ErrorCode.CLASS_NOT_FOUND_1) { return "${text.login.driverNotFound}
" + getStackTrace(0, e, isH2); } return getStackTrace(0, e, isH2); } private String login(NetworkConnectionInfo networkConnectionInfo) { String driver = attributes.getProperty("driver", ""); String url = attributes.getProperty("url", ""); String user = attributes.getProperty("user", ""); String password = attributes.getProperty("password", ""); session.put("autoCommit", "checked"); session.put("autoComplete", "1"); session.put("maxrows", "1000"); boolean isH2 = url.startsWith("jdbc:h2:"); try { Connection conn = server.getConnection(driver, url, user, password, (String) session.get("key"), networkConnectionInfo); session.setConnection(conn); session.put("url", url); session.put("user", user); session.remove("error"); settingSave(); return "frame.jsp"; } catch (Exception e) { session.put("error", getLoginError(e, isH2)); return "login.jsp"; } } private String logout() { try { Connection conn = session.getConnection(); session.setConnection(null); session.remove("conn"); session.remove("result"); session.remove("tables"); session.remove("user"); session.remove("tool"); if (conn != null) { if (session.getShutdownServerOnDisconnect()) { server.shutdown(); } else { conn.close(); } } } catch (Exception e) { trace(e.toString()); } session.remove("admin"); return "index.do"; } private String query() { String sql = attributes.getProperty("sql").trim(); try { ScriptReader r = new ScriptReader(new StringReader(sql)); final ArrayList list = new ArrayList<>(); while (true) { String s = r.readStatement(); if (s == null) { break; } list.add(s); } final Connection conn = session.getConnection(); if (SysProperties.CONSOLE_STREAM && server.getAllowChunked()) { String page = new String(server.getFile("result.jsp"), StandardCharsets.UTF_8); int idx = page.indexOf("${result}"); // the first element of the list is the header, the last the // footer list.add(0, page.substring(0, idx)); list.add(page.substring(idx + "${result}".length())); session.put("chunks", new Iterator() { private int i; @Override public boolean hasNext() { return i < list.size(); } @Override public String next() { String s = list.get(i++); if (i == 1 || i == list.size()) { return s; } StringBuilder b = new StringBuilder(); query(conn, s, i - 1, list.size() - 2, b); return b.toString(); } @Override public void remove() { throw new UnsupportedOperationException(); } }); return "result.jsp"; } String result; StringBuilder buff = new StringBuilder(); for (int i = 0; i < list.size(); i++) { String s = list.get(i); query(conn, s, i, list.size(), buff); } result = buff.toString(); session.put("result", result); } catch (Throwable e) { session.put("result", getStackTrace(0, e, session.getContents().isH2())); } return "result.jsp"; } /** * Execute a query and append the result to the buffer. * * @param conn the connection * @param s the statement * @param i the index * @param size the number of statements * @param buff the target buffer */ void query(Connection conn, String s, int i, int size, StringBuilder buff) { if (!(s.startsWith("@") && s.endsWith("."))) { buff.append(PageParser.escapeHtml(s + ";")).append("
"); } boolean forceEdit = s.startsWith("@edit"); buff.append(getResult(conn, i + 1, s, size == 1, forceEdit)). append("
"); } private String editResult() { ResultSet rs = session.result; int row = Integer.parseInt(attributes.getProperty("row")); int op = Integer.parseInt(attributes.getProperty("op")); String result = "", error = ""; try { if (op == 1) { boolean insert = row < 0; if (insert) { rs.moveToInsertRow(); } else { rs.absolute(row); } for (int i = 0; i < rs.getMetaData().getColumnCount(); i++) { String x = attributes.getProperty("r" + row + "c" + (i + 1)); unescapeData(x, rs, i + 1); } if (insert) { rs.insertRow(); } else { rs.updateRow(); } } else if (op == 2) { rs.absolute(row); rs.deleteRow(); } else if (op == 3) { // cancel } } catch (Throwable e) { result = "
" + getStackTrace(0, e, session.getContents().isH2()); error = formatAsError(e.getMessage()); } String sql = "@edit " + (String) session.get("resultSetSQL"); Connection conn = session.getConnection(); result = error + getResult(conn, -1, sql, true, true) + result; session.put("result", result); return "result.jsp"; } private ResultSet getMetaResultSet(Connection conn, String sql) throws SQLException { DatabaseMetaData meta = conn.getMetaData(); if (isBuiltIn(sql, "@best_row_identifier")) { String[] p = split(sql); int scale = p[4] == null ? 0 : Integer.parseInt(p[4]); boolean nullable = Boolean.parseBoolean(p[5]); return meta.getBestRowIdentifier(p[1], p[2], p[3], scale, nullable); } else if (isBuiltIn(sql, "@catalogs")) { return meta.getCatalogs(); } else if (isBuiltIn(sql, "@columns")) { String[] p = split(sql); return meta.getColumns(p[1], p[2], p[3], p[4]); } else if (isBuiltIn(sql, "@column_privileges")) { String[] p = split(sql); return meta.getColumnPrivileges(p[1], p[2], p[3], p[4]); } else if (isBuiltIn(sql, "@cross_references")) { String[] p = split(sql); return meta.getCrossReference(p[1], p[2], p[3], p[4], p[5], p[6]); } else if (isBuiltIn(sql, "@exported_keys")) { String[] p = split(sql); return meta.getExportedKeys(p[1], p[2], p[3]); } else if (isBuiltIn(sql, "@imported_keys")) { String[] p = split(sql); return meta.getImportedKeys(p[1], p[2], p[3]); } else if (isBuiltIn(sql, "@index_info")) { String[] p = split(sql); boolean unique = Boolean.parseBoolean(p[4]); boolean approx = Boolean.parseBoolean(p[5]); return meta.getIndexInfo(p[1], p[2], p[3], unique, approx); } else if (isBuiltIn(sql, "@primary_keys")) { String[] p = split(sql); return meta.getPrimaryKeys(p[1], p[2], p[3]); } else if (isBuiltIn(sql, "@procedures")) { String[] p = split(sql); return meta.getProcedures(p[1], p[2], p[3]); } else if (isBuiltIn(sql, "@procedure_columns")) { String[] p = split(sql); return meta.getProcedureColumns(p[1], p[2], p[3], p[4]); } else if (isBuiltIn(sql, "@schemas")) { return meta.getSchemas(); } else if (isBuiltIn(sql, "@tables")) { String[] p = split(sql); String[] types = p[4] == null ? null : StringUtils.arraySplit(p[4], ',', false); return meta.getTables(p[1], p[2], p[3], types); } else if (isBuiltIn(sql, "@table_privileges")) { String[] p = split(sql); return meta.getTablePrivileges(p[1], p[2], p[3]); } else if (isBuiltIn(sql, "@table_types")) { return meta.getTableTypes(); } else if (isBuiltIn(sql, "@type_info")) { return meta.getTypeInfo(); } else if (isBuiltIn(sql, "@udts")) { String[] p = split(sql); int[] types; if (p[4] == null) { types = null; } else { String[] t = StringUtils.arraySplit(p[4], ',', false); types = new int[t.length]; for (int i = 0; i < t.length; i++) { types[i] = Integer.parseInt(t[i]); } } return meta.getUDTs(p[1], p[2], p[3], types); } else if (isBuiltIn(sql, "@version_columns")) { String[] p = split(sql); return meta.getVersionColumns(p[1], p[2], p[3]); } else if (isBuiltIn(sql, "@memory")) { SimpleResultSet rs = new SimpleResultSet(); rs.addColumn("Type", Types.VARCHAR, 0, 0); rs.addColumn("KB", Types.VARCHAR, 0, 0); rs.addRow("Used Memory", Integer.toString(Utils.getMemoryUsed())); rs.addRow("Free Memory", Integer.toString(Utils.getMemoryFree())); return rs; } else if (isBuiltIn(sql, "@info")) { SimpleResultSet rs = new SimpleResultSet(); rs.addColumn("KEY", Types.VARCHAR, 0, 0); rs.addColumn("VALUE", Types.VARCHAR, 0, 0); rs.addRow("conn.getCatalog", conn.getCatalog()); rs.addRow("conn.getAutoCommit", Boolean.toString(conn.getAutoCommit())); rs.addRow("conn.getTransactionIsolation", Integer.toString(conn.getTransactionIsolation())); rs.addRow("conn.getWarnings", String.valueOf(conn.getWarnings())); String map; try { map = String.valueOf(conn.getTypeMap()); } catch (SQLException e) { map = e.toString(); } rs.addRow("conn.getTypeMap", map); rs.addRow("conn.isReadOnly", Boolean.toString(conn.isReadOnly())); rs.addRow("conn.getHoldability", Integer.toString(conn.getHoldability())); addDatabaseMetaData(rs, meta); return rs; } else if (isBuiltIn(sql, "@attributes")) { String[] p = split(sql); return meta.getAttributes(p[1], p[2], p[3], p[4]); } else if (isBuiltIn(sql, "@super_tables")) { String[] p = split(sql); return meta.getSuperTables(p[1], p[2], p[3]); } else if (isBuiltIn(sql, "@super_types")) { String[] p = split(sql); return meta.getSuperTypes(p[1], p[2], p[3]); } else if (isBuiltIn(sql, "@prof_stop")) { if (profiler != null) { profiler.stopCollecting(); SimpleResultSet rs = new SimpleResultSet(); rs.addColumn("Top Stack Trace(s)", Types.VARCHAR, 0, 0); rs.addRow(profiler.getTop(3)); profiler = null; return rs; } } return null; } private static void addDatabaseMetaData(SimpleResultSet rs, DatabaseMetaData meta) { Method[] methods = DatabaseMetaData.class.getDeclaredMethods(); Arrays.sort(methods, new Comparator() { @Override public int compare(Method o1, Method o2) { return o1.toString().compareTo(o2.toString()); } }); for (Method m : methods) { if (m.getParameterTypes().length == 0) { try { Object o = m.invoke(meta); rs.addRow("meta." + m.getName(), String.valueOf(o)); } catch (InvocationTargetException e) { rs.addRow("meta." + m.getName(), e.getTargetException().toString()); } catch (Exception e) { rs.addRow("meta." + m.getName(), e.toString()); } } } } private static String[] split(String s) { String[] list = new String[10]; String[] t = StringUtils.arraySplit(s, ' ', true); System.arraycopy(t, 0, list, 0, t.length); for (int i = 0; i < list.length; i++) { if ("null".equals(list[i])) { list[i] = null; } } return list; } private int getMaxrows() { String r = (String) session.get("maxrows"); return r == null ? 0 : Integer.parseInt(r); } private String getResult(Connection conn, int id, String sql, boolean allowEdit, boolean forceEdit) { try { sql = sql.trim(); StringBuilder buff = new StringBuilder(); String sqlUpper = StringUtils.toUpperEnglish(sql); if (sqlUpper.contains("CREATE") || sqlUpper.contains("DROP") || sqlUpper.contains("ALTER") || sqlUpper.contains("RUNSCRIPT")) { String sessionId = attributes.getProperty("jsessionid"); buff.append(""); } Statement stat; DbContents contents = session.getContents(); if (forceEdit || (allowEdit && contents.isH2())) { stat = conn.createStatement( ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE); } else { stat = conn.createStatement(); } ResultSet rs; long time = System.currentTimeMillis(); boolean metadata = false; Object generatedKeys = null; boolean edit = false; boolean list = false; if (isBuiltIn(sql, "@autocommit_true")) { conn.setAutoCommit(true); return "${text.result.autoCommitOn}"; } else if (isBuiltIn(sql, "@autocommit_false")) { conn.setAutoCommit(false); return "${text.result.autoCommitOff}"; } else if (isBuiltIn(sql, "@cancel")) { stat = session.executingStatement; if (stat != null) { stat.cancel(); buff.append("${text.result.statementWasCanceled}"); } else { buff.append("${text.result.noRunningStatement}"); } return buff.toString(); } else if (isBuiltIn(sql, "@edit")) { edit = true; sql = StringUtils.trimSubstring(sql, "@edit".length()); session.put("resultSetSQL", sql); } if (isBuiltIn(sql, "@list")) { list = true; sql = StringUtils.trimSubstring(sql, "@list".length()); } if (isBuiltIn(sql, "@meta")) { metadata = true; sql = StringUtils.trimSubstring(sql, "@meta".length()); } if (isBuiltIn(sql, "@generated")) { generatedKeys = true; int offset = "@generated".length(); int length = sql.length(); for (; offset < length; offset++) { char c = sql.charAt(offset); if (c == '(') { Parser p = new Parser(); generatedKeys = p.parseColumnList(sql, offset); offset = p.getLastParseIndex(); break; } if (!Character.isWhitespace(c)) { break; } } sql = StringUtils.trimSubstring(sql, offset); } else if (isBuiltIn(sql, "@history")) { buff.append(getCommandHistoryString()); return buff.toString(); } else if (isBuiltIn(sql, "@loop")) { sql = StringUtils.trimSubstring(sql, "@loop".length()); int idx = sql.indexOf(' '); int count = Integer.decode(sql.substring(0, idx)); sql = StringUtils.trimSubstring(sql, idx); return executeLoop(conn, count, sql); } else if (isBuiltIn(sql, "@maxrows")) { int maxrows = (int) Double.parseDouble(StringUtils.trimSubstring(sql, "@maxrows".length())); session.put("maxrows", Integer.toString(maxrows)); return "${text.result.maxrowsSet}"; } else if (isBuiltIn(sql, "@parameter_meta")) { sql = StringUtils.trimSubstring(sql, "@parameter_meta".length()); PreparedStatement prep = conn.prepareStatement(sql); buff.append(getParameterResultSet(prep.getParameterMetaData())); return buff.toString(); } else if (isBuiltIn(sql, "@password_hash")) { sql = StringUtils.trimSubstring(sql, "@password_hash".length()); String[] p = split(sql); return StringUtils.convertBytesToHex( SHA256.getKeyPasswordHash(p[0], p[1].toCharArray())); } else if (isBuiltIn(sql, "@prof_start")) { if (profiler != null) { profiler.stopCollecting(); } profiler = new Profiler(); profiler.startCollecting(); return "Ok"; } else if (isBuiltIn(sql, "@sleep")) { String s = StringUtils.trimSubstring(sql, "@sleep".length()); int sleep = 1; if (s.length() > 0) { sleep = Integer.parseInt(s); } Thread.sleep(sleep * 1000); return "Ok"; } else if (isBuiltIn(sql, "@transaction_isolation")) { String s = StringUtils.trimSubstring(sql, "@transaction_isolation".length()); if (s.length() > 0) { int level = Integer.parseInt(s); conn.setTransactionIsolation(level); } buff.append("Transaction Isolation: ") .append(conn.getTransactionIsolation()) .append("
"); buff.append(Connection.TRANSACTION_READ_UNCOMMITTED) .append(": read_uncommitted
"); buff.append(Connection.TRANSACTION_READ_COMMITTED) .append(": read_committed
"); buff.append(Connection.TRANSACTION_REPEATABLE_READ) .append(": repeatable_read
"); buff.append(Constants.TRANSACTION_SNAPSHOT) .append(": snapshot
"); buff.append(Connection.TRANSACTION_SERIALIZABLE) .append(": serializable"); } if (sql.startsWith("@")) { rs = getMetaResultSet(conn, sql); if (rs == null) { buff.append("?: ").append(sql); return buff.toString(); } } else { int maxrows = getMaxrows(); stat.setMaxRows(maxrows); session.executingStatement = stat; boolean isResultSet; if (generatedKeys == null) { isResultSet = stat.execute(sql); } else if (generatedKeys instanceof Boolean) { isResultSet = stat.execute(sql, ((Boolean) generatedKeys) ? Statement.RETURN_GENERATED_KEYS : Statement.NO_GENERATED_KEYS); } else if (generatedKeys instanceof String[]) { isResultSet = stat.execute(sql, (String[]) generatedKeys); } else { isResultSet = stat.execute(sql, (int[]) generatedKeys); } session.addCommand(sql); if (generatedKeys != null) { rs = null; rs = stat.getGeneratedKeys(); } else { if (!isResultSet) { buff.append("${text.result.updateCount}: ") .append(stat.getUpdateCount()); time = System.currentTimeMillis() - time; buff.append("
(").append(time).append(" ms)"); stat.close(); return buff.toString(); } rs = stat.getResultSet(); } } time = System.currentTimeMillis() - time; buff.append(getResultSet(sql, rs, metadata, list, edit, time, allowEdit)); // SQLWarning warning = stat.getWarnings(); // if (warning != null) { // buff.append("
Warning:
"). // append(getStackTrace(id, warning)); // } if (!edit) { stat.close(); } return buff.toString(); } catch (Throwable e) { // throwable: including OutOfMemoryError and so on return getStackTrace(id, e, session.getContents().isH2()); } finally { session.executingStatement = null; } } private static boolean isBuiltIn(String sql, String builtIn) { return sql.regionMatches(true, 0, builtIn, 0, builtIn.length()); } private String executeLoop(Connection conn, int count, String sql) throws SQLException { ArrayList params = new ArrayList<>(); int idx = 0; while (!stop) { idx = sql.indexOf('?', idx); if (idx < 0) { break; } if (isBuiltIn(sql.substring(idx), "?/*rnd*/")) { params.add(1); sql = sql.substring(0, idx) + "?" + sql.substring(idx + "/*rnd*/".length() + 1); } else { params.add(0); } idx++; } boolean prepared; Random random = new Random(1); long time = System.currentTimeMillis(); if (isBuiltIn(sql, "@statement")) { sql = StringUtils.trimSubstring(sql, "@statement".length()); prepared = false; Statement stat = conn.createStatement(); for (int i = 0; !stop && i < count; i++) { String s = sql; for (Integer type : params) { idx = s.indexOf('?'); if (type == 1) { s = s.substring(0, idx) + random.nextInt(count) + s.substring(idx + 1); } else { s = s.substring(0, idx) + i + s.substring(idx + 1); } } if (stat.execute(s)) { ResultSet rs = stat.getResultSet(); while (!stop && rs.next()) { // maybe get the data as well } rs.close(); } } } else { prepared = true; PreparedStatement prep = conn.prepareStatement(sql); for (int i = 0; !stop && i < count; i++) { for (int j = 0; j < params.size(); j++) { Integer type = params.get(j); if (type == 1) { prep.setInt(j + 1, random.nextInt(count)); } else { prep.setInt(j + 1, i); } } if (session.getContents().isSQLite()) { // SQLite currently throws an exception on prep.execute() prep.executeUpdate(); } else { if (prep.execute()) { ResultSet rs = prep.getResultSet(); while (!stop && rs.next()) { // maybe get the data as well } rs.close(); } } } } time = System.currentTimeMillis() - time; StringBuilder builder = new StringBuilder().append(time).append(" ms: ").append(count).append(" * ") .append(prepared ? "(Prepared) " : "(Statement) ").append('('); for (int i = 0, size = params.size(); i < size; i++) { if (i > 0) { builder.append(", "); } builder.append(params.get(i) == 0 ? "i" : "rnd"); } return builder.append(") ").append(sql).toString(); } private String getCommandHistoryString() { StringBuilder buff = new StringBuilder(); ArrayList history = session.getCommandHistory(); buff.append("" + ""); for (int i = history.size() - 1; i >= 0; i--) { String sql = history.get(i); buff.append(""); } buff.append("
Command
"). append("\"${text.resultEdit.edit}\""). append(""). append(PageParser.escapeHtml(sql)). append("
"); return buff.toString(); } private static String getParameterResultSet(ParameterMetaData meta) throws SQLException { StringBuilder buff = new StringBuilder(); if (meta == null) { return "No parameter meta data"; } buff.append(""). append(""). append(""); for (int i = 0; i < meta.getParameterCount(); i++) { buff.append(""); } buff.append("
classNamemodetypetypeNameprecisionscale
"). append(meta.getParameterClassName(i + 1)). append(""). append(meta.getParameterMode(i + 1)). append(""). append(meta.getParameterType(i + 1)). append(""). append(meta.getParameterTypeName(i + 1)). append(""). append(meta.getPrecision(i + 1)). append(""). append(meta.getScale(i + 1)). append("
"); return buff.toString(); } private String getResultSet(String sql, ResultSet rs, boolean metadata, boolean list, boolean edit, long time, boolean allowEdit) throws SQLException { int maxrows = getMaxrows(); time = System.currentTimeMillis() - time; StringBuilder buff = new StringBuilder(); if (edit) { buff.append("
" + "" + "" + ""); } else { buff.append("
"); } if (metadata) { SimpleResultSet r = new SimpleResultSet(); r.addColumn("#", Types.INTEGER, 0, 0); r.addColumn("label", Types.VARCHAR, 0, 0); r.addColumn("catalog", Types.VARCHAR, 0, 0); r.addColumn("schema", Types.VARCHAR, 0, 0); r.addColumn("table", Types.VARCHAR, 0, 0); r.addColumn("column", Types.VARCHAR, 0, 0); r.addColumn("type", Types.INTEGER, 0, 0); r.addColumn("typeName", Types.VARCHAR, 0, 0); r.addColumn("class", Types.VARCHAR, 0, 0); r.addColumn("precision", Types.INTEGER, 0, 0); r.addColumn("scale", Types.INTEGER, 0, 0); r.addColumn("displaySize", Types.INTEGER, 0, 0); r.addColumn("autoIncrement", Types.BOOLEAN, 0, 0); r.addColumn("caseSensitive", Types.BOOLEAN, 0, 0); r.addColumn("currency", Types.BOOLEAN, 0, 0); r.addColumn("nullable", Types.INTEGER, 0, 0); r.addColumn("readOnly", Types.BOOLEAN, 0, 0); r.addColumn("searchable", Types.BOOLEAN, 0, 0); r.addColumn("signed", Types.BOOLEAN, 0, 0); r.addColumn("writable", Types.BOOLEAN, 0, 0); r.addColumn("definitelyWritable", Types.BOOLEAN, 0, 0); ResultSetMetaData m = rs.getMetaData(); for (int i = 1; i <= m.getColumnCount(); i++) { r.addRow(i, m.getColumnLabel(i), m.getCatalogName(i), m.getSchemaName(i), m.getTableName(i), m.getColumnName(i), m.getColumnType(i), m.getColumnTypeName(i), m.getColumnClassName(i), m.getPrecision(i), m.getScale(i), m.getColumnDisplaySize(i), m.isAutoIncrement(i), m.isCaseSensitive(i), m.isCurrency(i), m.isNullable(i), m.isReadOnly(i), m.isSearchable(i), m.isSigned(i), m.isWritable(i), m.isDefinitelyWritable(i)); } rs = r; } ResultSetMetaData meta = rs.getMetaData(); int columns = meta.getColumnCount(); int rows = 0; if (list) { buff.append(""); while (rs.next()) { if (maxrows > 0 && rows >= maxrows) { break; } rows++; buff.append(""); for (int i = 0; i < columns; i++) { buff.append(""); } } } else { buff.append(""); if (edit) { buff.append(""); } for (int i = 0; i < columns; i++) { buff.append(""); } buff.append(""); while (rs.next()) { if (maxrows > 0 && rows >= maxrows) { break; } rows++; buff.append(""); if (edit) { buff.append(""); } for (int i = 0; i < columns; i++) { buff.append(""); } buff.append(""); } } boolean isUpdatable = false; try { if (!session.getContents().isDB2()) { isUpdatable = rs.getConcurrency() == ResultSet.CONCUR_UPDATABLE && rs.getType() != ResultSet.TYPE_FORWARD_ONLY; } } catch (NullPointerException e) { // ignore // workaround for a JDBC-ODBC bridge problem } if (edit) { ResultSet old = session.result; if (old != null) { old.close(); } session.result = rs; } else { rs.close(); } if (edit) { buff.append(""); for (int i = 0; i < columns; i++) { buff.append(""); } buff.append(""); } buff.append("
ColumnData
Row #"). append(rows).append("
"). append(PageParser.escapeHtml(meta.getColumnLabel(i + 1))). append(""). append(escapeData(rs, i + 1)). append("
${text.resultEdit.action}"). append(PageParser.escapeHtml(meta.getColumnLabel(i + 1))). append("
"). append("\"${text.resultEdit.edit}\""). append("\"${text.resultEdit.delete}\""). append(""). append(escapeData(rs, i + 1)). append("
"). append("\"${text.resultEdit.add}\""). append("
"); if (edit) { buff.append("
"); } if (rows == 0) { buff.append("(${text.result.noRows}"); } else if (rows == 1) { buff.append("(${text.result.1row}"); } else { buff.append('(').append(rows).append(" ${text.result.rows}"); } buff.append(", "); time = System.currentTimeMillis() - time; buff.append(time).append(" ms)"); if (!edit && isUpdatable && allowEdit) { buff.append("

" + "
" + "" + "
"); } return buff.toString(); } /** * Save the current connection settings to the properties file. * * @return the file to open afterwards */ private String settingSave() { ConnectionInfo info = new ConnectionInfo(); info.name = attributes.getProperty("name", ""); info.driver = attributes.getProperty("driver", ""); info.url = attributes.getProperty("url", ""); info.user = attributes.getProperty("user", ""); server.updateSetting(info); attributes.put("setting", info.name); server.saveProperties(null); return "index.do"; } private static String escapeData(ResultSet rs, int columnIndex) throws SQLException { String d = rs.getString(columnIndex); if (d == null) { return "null"; } else if (d.length() > 100_000) { String s; if (isBinary(rs.getMetaData().getColumnType(columnIndex))) { s = PageParser.escapeHtml(d.substring(0, 6)) + "... (" + (d.length() / 2) + " ${text.result.bytes})"; } else { s = PageParser.escapeHtml(d.substring(0, 100)) + "... (" + d.length() + " ${text.result.characters})"; } return "
=+
" + s; } else if (d.equals("null") || d.startsWith("= ") || d.startsWith("=+")) { return "
=
" + PageParser.escapeHtml(d); } else if (d.equals("")) { // PageParser.escapeHtml replaces "" with a non-breaking space return ""; } return PageParser.escapeHtml(d); } private static boolean isBinary(int sqlType) { switch (sqlType) { case Types.BINARY: case Types.BLOB: case Types.JAVA_OBJECT: case Types.LONGVARBINARY: case Types.OTHER: case Types.VARBINARY: return true; } return false; } private void unescapeData(String x, ResultSet rs, int columnIndex) throws SQLException { if (x.equals("null")) { rs.updateNull(columnIndex); return; } else if (x.startsWith("=+")) { // don't update return; } else if (x.equals("=*")) { // set an appropriate default value int type = rs.getMetaData().getColumnType(columnIndex); switch (type) { case Types.TIME: rs.updateString(columnIndex, "12:00:00"); break; case Types.TIMESTAMP: case Types.DATE: rs.updateString(columnIndex, "2001-01-01"); break; default: rs.updateString(columnIndex, "1"); break; } return; } else if (x.startsWith("= ")) { x = x.substring(2); } ResultSetMetaData meta = rs.getMetaData(); int type = meta.getColumnType(columnIndex); if (session.getContents().isH2()) { rs.updateString(columnIndex, x); return; } switch (type) { case Types.BIGINT: rs.updateLong(columnIndex, Long.decode(x)); break; case Types.DECIMAL: rs.updateBigDecimal(columnIndex, new BigDecimal(x)); break; case Types.DOUBLE: case Types.FLOAT: rs.updateDouble(columnIndex, Double.parseDouble(x)); break; case Types.REAL: rs.updateFloat(columnIndex, Float.parseFloat(x)); break; case Types.INTEGER: rs.updateInt(columnIndex, Integer.decode(x)); break; case Types.TINYINT: rs.updateShort(columnIndex, Short.decode(x)); break; default: rs.updateString(columnIndex, x); } } private String settingRemove() { String setting = attributes.getProperty("name", ""); server.removeSetting(setting); ArrayList settings = server.getSettings(); if (!settings.isEmpty()) { attributes.put("setting", settings.get(0)); } server.saveProperties(null); return "index.do"; } /** * Get the current mime type. * * @return the mime type */ String getMimeType() { return mimeType; } boolean getCache() { return cache; } WebSession getSession() { return session; } private void trace(String s) { server.trace(s); } }




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