static void deleteQueryHandler(ref QueryBuilder newQuery, string sqlStr) { // delete from table where silegjilsejgil=seiljsiegljseg // delete from table; string[] tokenList = new string[] { "delete", "where" }; System.Collections.ArrayList tokenised = new System.Collections.ArrayList(); newQuery.setType(ABSTRACTQUERYTYPES.DeleteQuery); // build the token list tokenised = SQLConsole.Data.utils.tokenizeList(sqlStr, tokenList); foreach (tokenItem tokenitem in tokenised) { string tokenString = tokenitem.tokenValue; string comString = tokenitem.tokenName; string paramString = tokenString.Substring(tokenString.IndexOf(comString) + comString.Length + 1).Trim(); switch (comString) { case "delete": paramString = paramString.Substring("from ".Length); string tableAlias = ""; string tablename = ""; if (paramString.IndexOf(' ') != -1) { tableAlias = paramString.Substring(paramString.IndexOf(' ') + 1); tablename = paramString.Substring(0, paramString.IndexOf(' ')); } else tablename = paramString.Trim(); newQuery.addSource(new ATable(tablename, tableAlias)); break; case "where": newQuery.conditionalString = paramString; break; } } }
static void alterQueryHandler(ref QueryBuilder newQuery, string sqlStr) { newQuery.setType(ABSTRACTQUERYTYPES.AlterQuery); // alter table testTable drop column password newQuery.conditionalString = sqlStr; }
static void updateQueryHandler(ref QueryBuilder newQuery, string sqlStr) { string[] tokenList = new string[] { "update", "set", "where", "nullterminator" }; System.Collections.ArrayList tokenised = new System.Collections.ArrayList(); newQuery.setType(ABSTRACTQUERYTYPES.UpdateQuery); // build the token list tokenised = SQLConsole.Data.utils.tokenizeList(sqlStr, tokenList); foreach (tokenItem tokenitem in tokenised) { string tokenString = tokenitem.tokenValue; string comString = tokenitem.tokenName; string paramString = tokenString.Substring(tokenString.IndexOf(comString) + comString.Length + 1).Trim(); //string comString = tokenString.Substring(0, tokenString.IndexOf(" ")).Trim(); //string paramString = tokenString.Substring(tokenString.IndexOf(" ") + 1).Trim(); string tablename = ""; switch (comString) { case "update": tablename = paramString; newQuery.addSource(tablename); break; case "set": // set something=something, ilsjeiljg='sejil=gji\'seg', sjegiiljseg=slegijl string curKey = ""; string curVal = ""; bool strQuoting = false; bool doKey = false; bool doAdd = false; for (int i = 0; i <= paramString.Length; i++) { if (!doKey) { if (i < paramString.Length) { if (paramString[i].Equals('=')) doKey = true; else if (!paramString[i].Equals(',') && !paramString[i].Equals(' ')) curKey += paramString[i]; } } else { if (i < paramString.Length) { if ((paramString[i].Equals('\'')) && (!paramString[i - 1].Equals('\\'))) { if (strQuoting) { strQuoting = false; doAdd = true; } else { strQuoting = true; i++; } } else if ((paramString[i].Equals(',')) && (strQuoting == false)) { doAdd = true; i++; } } else doAdd = true; if (doAdd) { string fieldname = curKey; string fieldValue = curVal; strQuoting = false; doAdd = false; doKey = false; newQuery.addField(new AField(fieldname.Trim(), fieldValue.Trim())); curKey = ""; curVal = ""; } else { curVal += paramString[i]; } } } break; case "where": newQuery.conditionalString = paramString; break; } } }
static void selectQueryHandler(ref QueryBuilder newQuery, string sqlStr) { string[] tokenList = new string[] { "select", "from", "inner join", "where", "group by", "order by", "limit" }; string tmp = ""; for(int i=0;i<=tokenList.Length-1;i++) { tmp = tokenList[i]; sqlStr = sqlStr.Replace(tmp, "[" + tmp + "]"); tokenList[i]="["+tmp+"]"; } System.Collections.ArrayList tokenised = new System.Collections.ArrayList(); newQuery.setType(ABSTRACTQUERYTYPES.SelectQuery); newQuery.QueryLimit.lStart = -1; newQuery.QueryLimit.lLimit = -1; // build the token list tokenised = SQLConsole.Data.utils.tokenizeList(sqlStr, tokenList); foreach (tokenItem tokenitem in tokenised) { string tokenString = tokenitem.tokenValue; string comString = tokenitem.tokenName; string paramString = tokenString.Substring(tokenString.IndexOf(tokenitem.tokenName) + tokenitem.tokenName.Length + 1).Trim(); if(paramString.Length > 10) if (paramString.Trim().ToLower().Substring(0, "distinct".Length) == "distinct") { newQuery.distinct = true; paramString = paramString.Trim().Substring("distinct ".Length); } //string comString = tokenString.Substring(0, tokenString.IndexOf(" ")).Trim(); //string paramString = tokenString.Substring(tokenString.IndexOf(" ") + 1).Trim(); string tableAlias = ""; string tablename = ""; string[] fieldList; switch (comString) { case "select": string[] fieldnames = paramString.Split(','); string realname = ""; string agg; ABSTRACTAGGREGATE aggMode = ABSTRACTAGGREGATE.None; foreach (string field in fieldnames) { realname = field.Trim(); if (field.IndexOf(")") > 0) { realname = field.Substring(field.IndexOf("(") + 1, field.IndexOf(")") - field.IndexOf("(") - 1); realname = realname.Trim(); agg = field.Substring(0, field.IndexOf("(") - 1); switch (agg) { case "count": aggMode = ABSTRACTAGGREGATE.Count; break; case "max": aggMode = ABSTRACTAGGREGATE.Max; break; case "min": aggMode = ABSTRACTAGGREGATE.Min; break; } } if (realname.IndexOf(".") > 0) newQuery.addField(new AField(realname.Substring(realname.IndexOf(".") + 1), null, realname.Substring(0, realname.IndexOf(".")))); else { if (realname == "*") { // deal with this seperately. newQuery.addField(new AField(realname, null)); } else { // Work out what source this field belongs to... string pureName = realname.Substring(realname.IndexOf(".") + 1); string[] sources = {}; for (int i = 0; i < tokenised.Count; i++) { if (((tokenItem)tokenised[i]).tokenName == "from") { string sourcesList = ((tokenItem)tokenised[i]).tokenValue; sourcesList = sourcesList.Substring(sourcesList.IndexOf(((tokenItem)tokenised[i]).tokenName) + ((tokenItem)tokenised[i]).tokenName.Length + 1); sourcesList.Trim(); string[] sources2 = sourcesList.Split(','); sources = (string[])utils.ConcatenateArrays(sources, sources2); } else if (((tokenItem)tokenised[i]).tokenName == "inner join") { string sourcesList = ((tokenItem)tokenised[i]).tokenValue; sourcesList = sourcesList.Substring(sourcesList.IndexOf(((tokenItem)tokenised[i]).tokenName) + ((tokenItem)tokenised[i]).tokenName.Length + 1); sourcesList = sourcesList.Substring(0, sourcesList.IndexOf(" on ")); sourcesList.Trim(); string[] sources2 = { sourcesList }; sources = (string[])utils.ConcatenateArrays(sources, sources2); } else if (((tokenItem)tokenised[i]).tokenName == "outer join") { string sourcesList = ((tokenItem)tokenised[i]).tokenValue; sourcesList = sourcesList.Substring(sourcesList.IndexOf(((tokenItem)tokenised[i]).tokenName) + ((tokenItem)tokenised[i]).tokenName.Length + 1); sourcesList = sourcesList.Substring(0, sourcesList.IndexOf(" on ")); sourcesList.Trim(); string[] sources2 = { sourcesList }; sources = (string[])utils.ConcatenateArrays(sources, sources2); } else if (((tokenItem)tokenised[i]).tokenName == "join") { string sourcesList = ((tokenItem)tokenised[i]).tokenValue; sourcesList = sourcesList.Substring(sourcesList.IndexOf(((tokenItem)tokenised[i]).tokenName) + ((tokenItem)tokenised[i]).tokenName.Length + 1); if(sourcesList.IndexOf(" on ") > 0) sourcesList = sourcesList.Substring(0, sourcesList.IndexOf(" on ")); sourcesList.Trim(); string[] sources2 = { sourcesList }; sources = (string[])utils.ConcatenateArrays(sources, sources2); } } AField newField = null; foreach (string source in sources) { ATable src = null; if (source.IndexOf(" ") > 0) src = newQuery.getDatabaseObject().getTableObject(source.Substring(0, source.IndexOf(" "))); else src = newQuery.getDatabaseObject().getTableObject(source); if (src == null) throw (new Exception("Bad table name exception")); if (src.getFieldByName(pureName) != null) { if (newField != null) throw (new Exception("Ambiguous field name: " + realname + ". Field could belong to more than one source table.")); newField = src.getFieldByName(pureName); if (source.IndexOf(" ") > 0) { newField.owner = source.Substring(source.IndexOf(" ")+1); } } } if (newField == null) throw (new Exception("Unable to determine source for field: " + realname)); newQuery.addField(newField); //newQuery.addField(new AField(realname, null, (ATable)((QueryBuilder.SOURCEBINDING)newQuery.getSourceList()[0]).sourceObject)); //newQuery.addField(new AField(realname,null,"")); } } if (realname.IndexOf(".") > 0) newQuery.getField(realname.Substring(realname.IndexOf(".") + 1), realname.Substring(0, realname.IndexOf("."))).function = aggMode; else newQuery.getField(realname).function = aggMode; } break; case "distinct": newQuery.distinct = true; break; case "from": if (paramString.IndexOf(' ') != -1) { tableAlias = paramString.Substring(paramString.IndexOf(' ') + 1); tablename = paramString.Substring(0, paramString.IndexOf(' ')); } else tablename = paramString.Trim(); newQuery.addSource(new ATable(tablename, tableAlias)); break; case "inner join": System.Collections.ArrayList joinList = new System.Collections.ArrayList(); paramString = "inner join " + paramString; if (paramString.ToLower().IndexOf("inner join", "inner join".Length + 1) >= 2) { while (paramString.Length >= 0) { string tmp2 = paramString; if (paramString.ToLower().IndexOf("inner join", "inner join".Length + 1) >= 2) tmp2 = paramString.ToLower().Substring(0, paramString.ToLower().IndexOf("inner join", "inner join".Length + 2)).Trim(); else { joinList.Add(tmp2); break; } joinList.Add(tmp2); paramString = paramString.ToLower().Substring(paramString.ToLower().IndexOf("inner join", "inner join".Length + 2)).Trim(); } } else { joinList.Add(paramString); } foreach (string tmpstr in joinList) { paramString = tmpstr.Substring("inner join".Length+1); // inner join anothertable on sjlieglij=sliejgil string lTmp = paramString.Substring(0, paramString.IndexOf(" on ")); if (lTmp.IndexOf(' ') != -1) { tableAlias = lTmp.Substring(lTmp.IndexOf(' ')).Trim(); tablename = lTmp.Substring(0, lTmp.IndexOf(' ')).Trim(); } else tablename = lTmp.Trim(); lTmp = paramString.Substring(paramString.IndexOf(" on") + " on".Length + 1); string srcTable = ""; string dstTable = ""; string srcField = ""; string dstField = ""; srcTable = lTmp.Substring(0, lTmp.IndexOf('=')); dstTable = lTmp.Substring(lTmp.IndexOf('=') + 1); if (srcTable.IndexOf('.') > 0) { // Assume specifed table. srcField = srcTable.Substring(srcTable.IndexOf(".") + 1); srcTable = srcTable.Substring(0, srcTable.IndexOf(".")); } if (dstTable.IndexOf('.') > 0) { // Assume specifed table. dstField = dstTable.Substring(dstTable.IndexOf(".") + 1); dstTable = dstTable.Substring(0, dstTable.IndexOf(".")); } newQuery.addSource(new ATable(tablename, tableAlias), ABSTRACTSOURCEBINDTYPES.INNERJOIN, ((QueryBuilder.SOURCEBINDING)newQuery.getSourceList()[newQuery.getSourceList().Count - 1]).sourceObject, srcField, dstField); } //newQuery.addSource(new ATable(tablename, tableAlias), ABSTRACTSOURCEBINDTYPES.INNERJOIN, null, lTmp.Substring(0, lTmp.IndexOf('=')), lTmp.Substring(lTmp.IndexOf('=')+1)); break; case "join": joinList = new System.Collections.ArrayList(); paramString = "join " + paramString; if (paramString.ToLower().IndexOf("join", "join".Length + 1) >= 2) { while (paramString.Length >= 0) { string tmp2 = paramString; if (paramString.ToLower().IndexOf("join", "join".Length + 1) >= 2) tmp2 = paramString.ToLower().Substring(0, paramString.ToLower().IndexOf("join", "join".Length + 2)).Trim(); else { joinList.Add(tmp2); break; } joinList.Add(tmp2); paramString = paramString.ToLower().Substring(paramString.ToLower().IndexOf("join", "join".Length + 2)).Trim(); } } else { joinList.Add(paramString); } foreach (string tmpstr in joinList) { paramString = tmpstr.Substring("join".Length + 1); // inner join anothertable on sjlieglij=sliejgil string lTmp = paramString.Substring(0, paramString.IndexOf(" on ")); if (lTmp.IndexOf(' ') != -1) { tableAlias = lTmp.Substring(lTmp.IndexOf(' ')).Trim(); tablename = lTmp.Substring(0, lTmp.IndexOf(' ')).Trim(); } else tablename = lTmp.Trim(); lTmp = paramString.Substring(paramString.IndexOf(" on") + " on".Length + 1); string srcTable = ""; string dstTable = ""; string srcField = ""; string dstField = ""; srcTable = lTmp.Substring(0, lTmp.IndexOf('=')); dstTable = lTmp.Substring(lTmp.IndexOf('=') + 1); if (srcTable.IndexOf('.') > 0) { // Assume specifed table. srcField = srcTable.Substring(srcTable.IndexOf(".") + 1); srcTable = srcTable.Substring(0, srcTable.IndexOf(".")); } if (dstTable.IndexOf('.') > 0) { // Assume specifed table. dstField = dstTable.Substring(dstTable.IndexOf(".") + 1); dstTable = dstTable.Substring(0, dstTable.IndexOf(".")); } newQuery.addSource(new ATable(tablename, tableAlias), ABSTRACTSOURCEBINDTYPES.INNERJOIN, ((QueryBuilder.SOURCEBINDING)newQuery.getSourceList()[newQuery.getSourceList().Count - 1]).sourceObject, srcField, dstField); } //newQuery.addSource(new ATable(tablename, tableAlias), ABSTRACTSOURCEBINDTYPES.INNERJOIN, null, lTmp.Substring(0, lTmp.IndexOf('=')), lTmp.Substring(lTmp.IndexOf('=')+1)); break; case "where": // where b.id = sjilegj, b.Name = fjff // where b.id = silegjlsg and newQuery.conditionalString = paramString; break; case "group by": fieldList = paramString.Split(','); foreach(string ff in fieldList) { newQuery.getField(ff).GroupBy = true; } break; case "order by": fieldList = paramString.Split(','); foreach (string ff in fieldList) { /* patch... bugfix: orderby where the field is not in the select field list * ie: select * from [table] order by field */ string fname = null; string fOrderType = null; if (ff.IndexOf(' ') > 0) { ff.Trim(); fname = ff.Substring(0, ff.IndexOf(' ')); fOrderType = ff.Substring(ff.IndexOf(' ') + 1); } else fname = ff; if (newQuery.getField(fname) == null) { if (fname.IndexOf(".") > 0) { string tblName = ((ATable)newQuery.getSourceTableByAlias(fname.Substring(0, fname.IndexOf(".")))).name; AField fld = newQuery.getDatabaseObject().getTableObject(tblName).getFieldByName((fname.Substring(fname.IndexOf(".") + 1))); fld.owner = fname.Substring(0, fname.IndexOf(".")); newQuery.addField(fld); } else newQuery.addField(newQuery.getDatabaseObject().GetTableCache().getCachedTable(((ATable)((QueryBuilder.SOURCEBINDING)newQuery.getSourceList()[0]).sourceObject).name).getFieldByName(fname)); } if(fOrderType != null) { if (fOrderType.ToLower() == "asc") newQuery.getField(fname).OrderBy = ABSTRACTORDERTYPE.Ascending; else newQuery.getField(fname).OrderBy = ABSTRACTORDERTYPE.Descending; } else { //default to order by asc if (fname.IndexOf(".")>0) { fname = fname.Substring(fname.IndexOf(".")+1); } if (fname == newQuery.getField(fname).name) { newQuery.getField(fname).OrderBy = ABSTRACTORDERTYPE.Ascending; } } } break; case "limit": newQuery.QueryLimit.lStart = 0; if (paramString.IndexOf(',') > 0) { // format limit 0,5 // format limit offset, count newQuery.QueryLimit.lStart = Convert.ToInt32(paramString.Substring(0, paramString.IndexOf(','))); newQuery.QueryLimit.lLimit = Convert.ToInt32(paramString.Substring(paramString.IndexOf(',') + 1)); } else newQuery.QueryLimit.lLimit = Convert.ToInt32(paramString); break; } } }
static void insertQueryHandler(ref QueryBuilder newQuery, string sqlStr) { try { newQuery.setType(ABSTRACTQUERYTYPES.InsertQuery); string[] tokens = sqlStr.Split(' '); System.Collections.Queue fieldQueue = new System.Collections.Queue(15); for (int i = 0; i < tokens.Length; i++) { string tokenPeek = tokens[i]; if (tokens[i].Equals("into")) //Next token will be the tablename newQuery.addSource(tokens[++i]); if ((tokens[i].Equals("(")) && (!tokens[i - 2].Equals("values"))) { //fieldlist // process fieldlist string fieldname; i++; //just move forward to the tagset. while (!tokens[i].Equals(")")) { fieldname = tokens[i++]; //if (fieldname.Trim().Substring(fieldname.Length - 1).Equals(",")) // fieldname = fieldname.Trim().Substring(0, fieldname.Trim().Length - 1); foreach(string field in fieldname.Split(',')) if(field.Trim().Length > 0) fieldQueue.Enqueue(field); } string test = tokens[i + 1]; } else if ((tokens[i + 1].Equals("(")) && (tokens[i].ToLower().Equals("values"))) { //valuelist // process valuelist i++; i++; string restOfString = ""; while (i < tokens.Length) restOfString += tokens[i++] + " "; int strquoteon = 0; string fieldVal = ""; bool quotedType = false; for (int x = 0; x < restOfString.Length; x++) { if ((restOfString[x].Equals('\'')) && (strquoteon == 0)) { strquoteon = 1; quotedType = true; //x++; //skip the quote fieldVal = ""; //fieldVal += restOfString[x]; } else if ((strquoteon == 0) && ((restOfString[x].Equals(',')) || (restOfString[x].Equals(')')))) { string fieldname = (string)fieldQueue.Dequeue(); // Make sure we're not quoting. newQuery.addField(new AField(fieldname, fieldVal.Trim())); fieldVal = ""; quotedType = false; } else if (x > 0) { if (restOfString[x].Equals('\'') && restOfString[x + 1].Equals('\'')) { // escaped quote fieldVal += "''"; x = x + 1; } // case for if it appears like an // escaped quote, but it is not // eg: '\\' as the value else if (restOfString[x].Equals('\\') && restOfString[x + 1].Equals('\'') && !restOfString[x - 1].Equals('\'')) { // escaped quote fieldVal += "\\'"; x = x + 1; } else { if (restOfString[x].Equals('\'')) { strquoteon = 0; //fieldVal += restOfString[x]; } else { if (!((strquoteon == 0) && (quotedType == true))) fieldVal += restOfString[x]; } } } else { fieldVal += restOfString[x]; } } break; } } } catch (Exception e) { System.Diagnostics.Debug.Print(e.Message); newQuery = null; } }
public static QueryBuilder CreateQueryBuilder(string csql, Database dbObj) { // This function will create a querybuilder object from commonsql QueryBuilder newQuery = new QueryBuilder(dbObj); // normalize commonsql: int offset = 0; int iQuote = 0; if (csql.IndexOf(";") <= 0) csql += ";"; for (int i = 0; i < (csql.Length-offset); i++) { if (csql[i] == '\'' && iQuote == 0) iQuote = 1; else if (csql[i] == '\'' && iQuote == 1) { if(csql[i-1] != '\'' && csql[i-1] != '\\') iQuote = 0; } else if (iQuote == 0) { if ((csql[i + offset].Equals('(') || csql[i + offset].Equals(')')) && (!csql[(i + offset) - 1].Equals(' '))) { // space to the left csql = csql.Insert((i + (offset++)), " "); } if ((csql[i + offset].Equals('(') || csql[i + offset].Equals(')')) && (!csql[(i + offset) + 1].Equals(' '))) { // space to the left csql = csql.Insert((i + (offset++)) + 1, " "); } } } // endnormalize string[] sqlStatements = csql.Split(';'); foreach (string sqlStr in sqlStatements) { if (!sqlStr.Trim().Equals("")) { //if (sqlStr.Substring(sqlStr.Length - 1).Equals(";")) // sqlStr = sqlStr.Substring(0, sqlStr.Length - 1); string[] tokens = sqlStr.Split(' '); switch (tokens[0].ToLower()) { case "drop": if (tokens[1].ToLower().Equals("table")) newQuery.setType(ABSTRACTQUERYTYPES.DropQuery); if (tokens[1].ToLower().Equals("database")) newQuery.setType(ABSTRACTQUERYTYPES.DropQuery); newQuery.addSource(tokens[2].ToLower()); newQuery.addField(new AField("droptype", tokens[1].ToLower())); break; case "insert": insertQueryHandler(ref newQuery, sqlStr); break; case "delete": deleteQueryHandler(ref newQuery, sqlStr); break; case "show": break; case "select": selectQueryHandler(ref newQuery, sqlStr); break; case "update": updateQueryHandler(ref newQuery, sqlStr); break; case "alter": alterQueryHandler(ref newQuery, sqlStr); break; } } } return newQuery; }