44ccfacbe3a3d4b300f80d48651c77837a4b571e galt Tue Apr 26 11:12:02 2022 -0700 SQL INJECTION Prevention Version 2 - this improves our methods by making subclauses of SQL that get passed around be both easy and correct to use. The way that was achieved was by getting rid of the obscure and not well used functions sqlSafefFrag and sqlDyStringPrintfFrag and replacing them with the plain versions of those functions, since these are not needed anymore. The new version checks for NOSQLINJ in unquoted %-s which is used to include SQL clauses, and will give an error the NOSQLINJ clause is not present, and this will automatically require the correct behavior by developers. sqlDyStringPrint is a very useful function, however because it was not enforced, users could use various other dyString functions and they operated without any awareness or checking for SQL correct use. Now those dyString functions are prohibited and it will produce an error if you try to use a dyString function on a SQL string, which is simply detected by the presence of the NOSQLINJ prefix. diff --git src/hg/makeDb/hgLoadChain/hgLoadChain.c src/hg/makeDb/hgLoadChain/hgLoadChain.c index b3192fe..2e1e1f1 100644 --- src/hg/makeDb/hgLoadChain/hgLoadChain.c +++ src/hg/makeDb/hgLoadChain/hgLoadChain.c @@ -81,141 +81,142 @@ fprintf(f, "%f\t%s\t%d\t%d\t%d\t%s\t%d\t%c\t%d\t%d\t%d\t%.1f\n", a->score, a->tName, a->tSize, a->tStart, a->tEnd, qName, a->qSize, a->qStrand, a->qStart, a->qEnd, a->id, a->score/basesMatched); else fprintf(f, "%f\t%s\t%d\t%d\t%d\t%s\t%d\t%c\t%d\t%d\t%d\n", a->score, a->tName, a->tSize, a->tStart, a->tEnd, qName, a->qSize, a->qStrand, a->qStart, a->qEnd, a->id); } static void loadDatabaseLink(char *database, char *tab, char *track) /* Load database from tab file. */ { struct sqlConnection *conn = sqlConnect(database); -struct dyString *dy = newDyString(1024); +struct dyString *dy = dyStringNew(1024); /* First make table definition. */ if (sqlTable != NULL) { /* Read from file. */ char *sql, *s; readInGulp(sqlTable, &sql, NULL); /* Chop of end-of-statement semicolon if need be. */ s = strchr(sql, ';'); if (s != NULL) *s = 0; sqlRemakeTable(conn, track, sql); freez(&sql); } else if (!oldTable) { int minLength = hGetMinIndexLength(database); /* Create definition statement. */ sqlDyStringPrintf(dy, "CREATE TABLE %s (\n", track); if (!noBin) - dyStringAppend(dy, " bin smallint unsigned not null,\n"); - dyStringAppend(dy, " tName varchar(255) not null,\n"); - dyStringAppend(dy, " tStart int unsigned not null,\n"); - dyStringAppend(dy, " tEnd int unsigned not null,\n"); - dyStringAppend(dy, " qStart int unsigned not null,\n"); - dyStringAppend(dy, " chainId int unsigned not null,\n"); - dyStringAppend(dy, "#Indices\n"); + sqlDyStringPrintf(dy, " bin smallint unsigned not null,\n"); + sqlDyStringPrintf(dy, " tName varchar(255) not null,\n"); + sqlDyStringPrintf(dy, " tStart int unsigned not null,\n"); + sqlDyStringPrintf(dy, " tEnd int unsigned not null,\n"); + sqlDyStringPrintf(dy, " qStart int unsigned not null,\n"); + sqlDyStringPrintf(dy, " chainId int unsigned not null,\n"); + sqlDyStringPrintf(dy, "#Indices\n"); if (tIndex) { if (!noBin) - dyStringPrintf(dy, " INDEX(tName(%d),bin),\n", minLength); + sqlDyStringPrintf(dy, " INDEX(tName(%d),bin),\n", minLength); } else { if (!noBin) - dyStringAppend(dy, " INDEX(bin),\n"); + sqlDyStringPrintf(dy, " INDEX(bin),\n"); } - dyStringAppend(dy, " INDEX(chainId)\n"); - dyStringAppend(dy, ")\n"); + sqlDyStringPrintf(dy, " INDEX(chainId)\n"); + sqlDyStringPrintf(dy, ")\n"); sqlRemakeTable(conn, track, dy->string); } dyStringClear(dy); sqlDyStringPrintf(dy, "load data local infile '%s' into table %s", tab, track); sqlUpdate(conn, dy->string); sqlDisconnect(&conn); } static void loadDatabaseChain(char *database, char *tab, char *track, int count) /* Load database from tab file. */ { struct sqlConnection *conn = sqlConnect(database); -struct dyString *dy = newDyString(1024); +struct dyString *dy = dyStringNew(1024); /* First make table definition. */ if (sqlTable != NULL) { /* Read from file. */ char *sql, *s; readInGulp(sqlTable, &sql, NULL); /* Chop of end-of-statement semicolon if need be. */ s = strchr(sql, ';'); if (s != NULL) *s = 0; sqlRemakeTable(conn, track, sql); freez(&sql); } else if (!oldTable) { int minLength = hGetMinIndexLength(database); /* Create definition statement. */ sqlDyStringPrintf(dy, "CREATE TABLE %s (\n", track); if (!noBin) - dyStringAppend(dy, " bin smallint unsigned not null,\n"); - dyStringAppend(dy, " score double not null,\n"); - dyStringAppend(dy, " tName varchar(255) not null,\n"); - dyStringAppend(dy, " tSize int unsigned not null, \n"); - dyStringAppend(dy, " tStart int unsigned not null,\n"); - dyStringAppend(dy, " tEnd int unsigned not null,\n"); - dyStringAppend(dy, " qName varchar(255) not null,\n"); - dyStringAppend(dy, " qSize int unsigned not null,\n"); - dyStringAppend(dy, " qStrand char(1) not null,\n"); - dyStringAppend(dy, " qStart int unsigned not null,\n"); - dyStringAppend(dy, " qEnd int unsigned not null,\n"); - dyStringAppend(dy, " id int unsigned not null,\n"); + sqlDyStringPrintf(dy, " bin smallint unsigned not null,\n"); + sqlDyStringPrintf(dy, + " score double not null,\n" + " tName varchar(255) not null,\n" + " tSize int unsigned not null, \n" + " tStart int unsigned not null,\n" + " tEnd int unsigned not null,\n" + " qName varchar(255) not null,\n" + " qSize int unsigned not null,\n" + " qStrand char(1) not null,\n" + " qStart int unsigned not null,\n" + " qEnd int unsigned not null,\n" + " id int unsigned not null,\n"); if (normScore) - dyStringAppend(dy, " normScore double not null,\n"); - dyStringAppend(dy, "#Indices\n"); + sqlDyStringPrintf(dy, " normScore double not null,\n"); + sqlDyStringPrintf(dy, "#Indices\n"); if (tIndex) { if (noBin) { - dyStringPrintf(dy, " INDEX(tName(%d),tStart),\n", minLength); - dyStringPrintf(dy, " INDEX(tName(%d),tEnd),\n", minLength); + sqlDyStringPrintf(dy, " INDEX(tName(%d),tStart),\n", minLength); + sqlDyStringPrintf(dy, " INDEX(tName(%d),tEnd),\n", minLength); } else - dyStringPrintf(dy, " INDEX(tName(%d),bin),\n", minLength); + sqlDyStringPrintf(dy, " INDEX(tName(%d),bin),\n", minLength); } else { if (noBin) { - dyStringAppend(dy, " INDEX(tStart),\n"); - dyStringAppend(dy, " INDEX(tEnd),\n"); + sqlDyStringPrintf(dy, " INDEX(tStart),\n"); + sqlDyStringPrintf(dy, " INDEX(tEnd),\n"); } else - dyStringAppend(dy, " INDEX(bin),\n"); + sqlDyStringPrintf(dy, " INDEX(bin),\n"); } - dyStringAppend(dy, " INDEX(id)\n"); - dyStringAppend(dy, ")\n"); + sqlDyStringPrintf(dy, " INDEX(id)\n"); + sqlDyStringPrintf(dy, ")\n"); sqlRemakeTable(conn, track, dy->string); } dyStringClear(dy); sqlDyStringPrintf(dy, "load data local infile '%s' into table %s", tab, track); sqlUpdate(conn, dy->string); /* add a comment to the history table and finish up connection */ hgHistoryComment(conn, "Loaded %d chains into %s chain table", count, track); sqlDisconnect(&conn); } static void oneChain(struct chain *chain, FILE *linkFile, FILE *chainFile) /* Put one chain into tab delimited chain and link files. */ { int basesMatched = 0; struct cBlock *b;