Source File modules/qi/query_instructions.c

    1    | /***************************************
    2    |   $Revision: 1.46 $
    3    |
    4    |
    5    |   Sql module (sq).  This is a mysql implementation of an sql module.
    6    |
    7    |   Status: NOT REVUED, NOT TESTED
    8    |
    9    |   Note: this code has been heavily coupled to MySQL, and may need to be changed
    10   |   (to improve performance) if a new RDBMS is used.
    11   |
    12   |   ******************/ /******************
    13   |   Filename            : query_instructions.c
    14   |   Author              : ottrey@ripe.net
    15   |   OSs Tested          : Solaris
    16   |   Problems            : Moderately linked to MySQL.  Not sure which inverse
    17   |                         attributes each option has.  Would like to modify this
    18   |                         after re-designing the objects module.
    19   |   Comments            : Not sure about the different keytypes.
    20   |   ******************/ /******************
    21   |   Copyright (c) 1999                              RIPE NCC
    22   |
    23   |   All Rights Reserved
    24   |
    25   |   Permission to use, copy, modify, and distribute this software and its
    26   |   documentation for any purpose and without fee is hereby granted,
    27   |   provided that the above copyright notice appear in all copies and that
    28   |   both that copyright notice and this permission notice appear in
    29   |   supporting documentation, and that the name of the author not be
    30   |   used in advertising or publicity pertaining to distribution of the
    31   |   software without specific, written prior permission.
    32   |
    33   |   THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
    34   |   ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL
    35   |   AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
    36   |   DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
    37   |   AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    38   |   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
    39   |   ***************************************/
    40   | #include <stdio.h>
    41   | #include <string.h>
    42   | #include <glib.h>
    43   |
    44   | #include "which_keytypes.h"
    45   | #include "query_instructions.h"
    46   | #include "mysql_driver.h"
    47   | #include "rp.h"
    48   | #include "stubs.h"
    49   | #include "constants.h"
    50   | #include "memwrap.h"
    51   | #include "wh_queries.h"
    52   |
    53   |
    54   |
    55   | /*+ String sizes +*/
    56   | #define STR_S   63
    57   | #define STR_M   255
    58   | #define STR_L   1023
    59   | #define STR_XL  4095
    60   | #define STR_XXL 16383
    61   |
    62   | /* XXX this must be removed from here!!! a .h file must be
    63   |    generated from xml */
    64   |
    65   | #include "defs.h"
    66   |
    67   | /* body of the query thread.
    68   |
    69   |    takes a ptr to structure with all arguments.
    70   |    returns an int (result of sq_execute_query) cast to (void*)
    71   |
    72   |    by marek
    73   | */
    74   | static
    75   | void *qi_kill_body(void *arg)
    76   | {
    77   |   SQ_connection_t *sql_connection = arg;
    78   |   ER_dbg_va(FAC_QI, ASP_QI_LAST_DET,
    79   | 	      "rtc: killing SQL connection %d", (sql_connection)->thread_id);
    80   |   /* abort the running query */
    81   |   SQ_abort_query(sql_connection);
    82   | }
    83   |
    84   | /*
    85   |    wrapper around sq_execute_query: starts a query
    86   |    in a separate thread and starts the socket watcher to cancel the query
    87   |    if the socket is closed.
    88   |
    89   |    by marek
    90   | */
    91   | int sql_execute_watched(sk_conn_st *condat, SQ_connection_t **sql_connection,
    92   | 			const char *query, SQ_result_set_t **result_ptr)
    93   | {
    94   |   int retval; /* return value of sq_execute_query */
    95   |   SQ_connection_t *tempcon;
    96   |
    97   |   /* make clean */
    98   |   SK_watchclear(condat);
    99   |
    100  |   /* set watchdog to execute the abort function */
    101  |   SK_watchexec(condat, qi_kill_body, *sql_connection);
    102  |
    103  |   /* start the watchdog */
    104  |   SK_watchstart(condat);
    105  |
    106  |   /* start query. An error may be returned if the query is aborted */
    107  |   retval = SQ_execute_query(*sql_connection, query, result_ptr);
    108  |
    109  |   /* but short queries will complete before the watchdog kills the
    110  |      connection */
    111  |
    112  |   SK_watchstop(condat);
    113  |
    114  |   /* if the watchdog triggered, then it is guaranteed that
    115  |      the kill_body function was invoked and therefore the sql-connection
    116  |      is now unusable...
    117  |      Close and reopen it for cleanup, use temporary connection
    118  |      to keep the login details */
    119  |   if( condat->rtc != 0 ) {
    120  |     /* can't rely on the error code from mysql!
    121  |      */
    122  |
    123  |     /* one thing: this code must be entered ONLY if the kill_body
    124  |        thing was invoked by the watchdog.
    125  |     */
    126  |
    127  |     /* if result is defined, free it here before destroying the
    128  |        asssociated connection */
    129  |     if( retval == 0 && result_ptr && *result_ptr ) {
    130  |       SQ_free_result( *result_ptr );
    131  |       *result_ptr = NULL;
    132  |     }
    133  |
    134  |     tempcon = SQ_duplicate_connection(*sql_connection);
    135  |
    136  |     ER_dbg_va(FAC_QI, ASP_QI_LAST_DET,
    137  | 	      "rtc: closing SQL thread %d", (*sql_connection)->thread_id);
    138  |     SQ_close_connection(*sql_connection);
    139  |
    140  |     *sql_connection = SQ_duplicate_connection(tempcon);
    141  |     ER_dbg_va(FAC_QI, ASP_QI_LAST_DET,
    142  | 	      "rtc: reopened as thread %d", (*sql_connection)->thread_id);
    143  |
    144  |     ER_dbg_va(FAC_QI, ASP_QI_LAST_DET,
    145  | 	      "rtc: closing SQL temporary thread %d", tempcon->thread_id);
    146  |     SQ_close_connection(tempcon);
    147  |
    148  |     /* make it look as if there was no error and
    149  |        the result is empty */
    150  |     retval = 0;
    151  |   }
    152  |
    153  |
    154  |   return retval;
    155  | }
    156  |
    157  | /* create_name_query() */
    158  | /*++++++++++++++++++++++++++++++++++++++
    159  |   Create an sql query for the names table.
    160  |
    161  |   char *query_str
    162  |
    163  |   const char *sql_query
    164  |
    165  |   const char *keys
    166  |
    167  |   More:
    168  |   +html+ <PRE>
    169  |   Authors:
    170  |   ottrey
    171  |   +html+ </PRE><DL COMPACT>
    172  |   +html+ <DT>Online References:
    173  |   +html+ <DD><UL>
    174  |   +html+ </UL></DL>
    175  |
    176  |   ++++++++++++++++++++++++++++++++++++++*/
    177  | static void create_name_query(char *query_str, const char *sql_query, const char *keys) {
    178  |   int i;
    179  |   /* Allocate stuff */
    180  |   GString *from_clause = g_string_sized_new(STR_L);
    181  |   GString *where_clause = g_string_sized_new(STR_L);
    182  |   gchar **words = g_strsplit(keys, " ", 0);
    183  |
    184  |   /* double quotes " are used in queries to allow querying for
    185  |      names like O'Hara */
    186  |
    187  |   g_string_sprintfa(from_clause, "names N%.2d", 0);
    188  |   g_string_sprintfa(where_clause, "N%.2d.name=\"%s\"", 0, words[0]);
    189  |
    190  |   for (i=1; words[i] != NULL; i++) {
    191  |     g_string_sprintfa(from_clause, ", names N%.2d", i);
    192  |     g_string_sprintfa(where_clause, " AND N%.2d.name=\"%s\" AND N00.object_id = N%.2d.object_id", i, words[i], i);
    193  |   }
    194  |
    195  |   sprintf(query_str, sql_query, from_clause->str, where_clause->str);
    196  |
    197  |   /* Free up stuff */
    198  |   g_strfreev(words);
    199  |   g_string_free(where_clause,/* CONSTCOND */ TRUE);
    200  |   g_string_free(from_clause, /* CONSTCOND */ TRUE);
    201  |
    202  | } /* create_name_query() */
    203  |
    204  | /*+ create_asblock_query:
    205  |
    206  |   given a string like: AS1
    207  |                        AS1 - AS10
    208  | 		       AS1-AS10
    209  |   construct a range query for the as_block table
    210  | */
    211  | static int create_asblock_query(char *query_str,
    212  | 				const char *sql_query,
    213  | 				const char *keys) {
    214  |   char *keycopy = wr_string(keys);
    215  |   char *token, *cursor = keycopy;
    216  |   int  asnums[2] = {0,0};
    217  |   int index = 0; /* index into the asnums array */
    218  |
    219  |
    220  |   while( (token = strsep( &cursor, "-" )) != NULL && index < 2) {
    221  |     /* discard the letters (or leading whitespace), take the number */
    222  |     if( sscanf(token, "%*[ AS]%d", &asnums[index++]) < 1 ) {
    223  |       return -1; /* error */
    224  |     }
    225  |   }
    226  |   /* if only beginning was supplied, copy it as end */
    227  |   if( index == 1 ) {
    228  |     asnums[1] = asnums[0];
    229  |   }
    230  |
    231  |   /* now construct the query */
    232  |   sprintf(query_str, sql_query, asnums[0], asnums[1]);
    233  |
    234  |   wr_free(keycopy);
    235  |   return 0;
    236  | }
    237  |
    238  | static void add_filter(char *query_str, const Query_command *qc) {
    239  |   int i;
    240  |   int qlen;
    241  |   char filter_atom[STR_M];
    242  |
    243  | /*
    244  |   if (MA_bitcount(qc->object_type_bitmap) > 0) {
    245  |     g_string_sprintfa(query_str, " AND (");
    246  |     for (i=0; i < C_END; i++) {
    247  |       if (MA_isset(qc->object_type_bitmap, i)) {
    248  |         g_string_sprintfa(query_str, "i.object_type = %d OR ", DF_get_class_dbase_code(i));
    249  |       }
    250  |     }
    251  |     g_string_truncate(query_str, query_str->len-3);
    252  |     g_string_append_c(query_str, ')');
    253  |   }
    254  | */
    255  |   if (MA_bitcount(qc->object_type_bitmap) > 0) {
    256  |     strcat(query_str, " AND (");
    257  |     for (i=0; i < C_END; i++) {
    258  |       if (MA_isset(qc->object_type_bitmap, i)) {
    259  |         strcpy(filter_atom, "");
    260  |         sprintf(filter_atom, "i.object_type = %d OR ", i);
    261  | 	                /* XXX class codes should be used instead:
    262  | 			   DF_get_class_dbase_code(i))
    263  | 			   but currently the tables contain values of enums
    264  | 			   (C_IN, etc) and not codes
    265  | 			*/
    266  |         strcat(query_str, filter_atom);
    267  |       }
    268  |     }
    269  |     qlen = strlen(query_str);
    270  |     query_str[qlen-3] = ')';
    271  |     query_str[qlen-2] = '\0';
    272  |     query_str[qlen-1] = '\0';
    273  |   }
    274  |
    275  | } /* add_filter() */
    276  |
    277  | /* create_query() */
    278  | /*++++++++++++++++++++++++++++++++++++++
    279  |   Create an sql query from the query_command and the matching keytype and the
    280  |   selected inverse attributes.
    281  |   Note this clears the first inv_attribute it sees, so is called sequentially
    282  |   until there are no inv_attributes left.
    283  |
    284  |   WK_Type keytype The matching keytype.
    285  |
    286  |   const Query_command *qc The query command.
    287  |
    288  |   mask_t *inv_attrs_bitmap The selected inverse attributes.
    289  |
    290  |   More:
    291  |   +html+ <PRE>
    292  |   Authors:
    293  |         ottrey
    294  |   +html+ </PRE><DL COMPACT>
    295  |   +html+ <DT>Online References:
    296  |   +html+ <DD><UL>
    297  |   +html+ </UL></DL>
    298  |
    299  |   ++++++++++++++++++++++++++++++++++++++*/
    300  | static char *create_query(const Query_t q, const Query_command *qc) {
    301  |   char *result=NULL;
    302  |   char result_buff[STR_XL];
    303  |   Q_Type_t querytype;
    304  |   int addquery = 0; /* controls if the query should be added to the list */
    305  |
    306  |   if (MA_bitcount(qc->inv_attrs_bitmap) > 0) {
    307  |     querytype = Q_INVERSE;
    308  |   }
    309  |   else {
    310  |     querytype = Q_LOOKUP;
    311  |   }
    312  |
    313  |   if ( (q.query != NULL)
    314  |     && (q.querytype == querytype) ) {
    315  |
    316  |     addquery = 1; /* if it got here, it should be added, unless.(see asblock)*/
    317  |
    318  |     if (q.keytype == WK_NAME) {
    319  |       /* Name queries require special treatment. */
    320  |        create_name_query(result_buff, q.query, qc->keys);
    321  |     }
    322  |     else if( q.keytype == WK_IPADDRESS ) {  /* ifaddr sql lookups */
    323  | 	ip_range_t myrang;
    324  | 	unsigned   begin, end;
    325  | 	ip_keytype_t key_type;
    326  |
    327  | 	if (NOERR(IP_smart_range(qc->keys, &myrang, IP_EXPN, &key_type))) {
    328  | 	    if(IP_rang_b2_space(&myrang) == IP_V4 ) {
    329  | 		IP_rang_b2v4(&myrang, &begin, &end);
    330  | 		sprintf(result_buff, q.query, begin, end);
    331  | 	    }
    332  | 	    else {
    333  | 		die;
    334  | 	    }
    335  | 	}
    336  |     }
    337  |     else if( q.keytype == WK_ASRANGE ) {   /* as_block range composition */
    338  |       if( create_asblock_query(result_buff, q.query, qc->keys) != 0 ) {
    339  | 	addquery = 0; /* ... unless it's not correct */
    340  |       }
    341  |     }
    342  |     else {
    343  |       sprintf(result_buff, q.query, qc->keys);
    344  |     }
    345  |
    346  |     if (q.class == -1 && addquery == 1 ) {
    347  |       /* It is class type ANY so add the object filtering */
    348  |       add_filter(result_buff, qc);
    349  |     }
    350  |   }
    351  |
    352  |   if( addquery == 1 ) {
    353  |     dieif( wr_malloc((void **)&result, strlen(result_buff)+1) != UT_OK);
    354  |     strcpy(result, result_buff);
    355  |     return result;
    356  |   }
    357  |   else {
    358  |     return NULL;
    359  |   }
    360  | } /* create_query() */
    361  |
    362  | /* fast_output() */
    363  | /*++++++++++++++++++++++++++++++++++++++
    364  |   This is for the '-F' flag.
    365  |   It assumes lines starting with ' ', '\t' or '+' belong to the prior attribute.
    366  |
    367  |   Fast isn't fast anymore - it's just there for compatibility reasons.
    368  |   This could be speed up if there were breaks out of the loops, once it matched something.
    369  |   (Wanna add a goto Marek?  :-) ).
    370  |
    371  |   const char *string The string to be "fast outputed".
    372  |
    373  |   More:
    374  |   +html+ <PRE>
    375  |   Authors:
    376  |         ottrey
    377  |   +html+ </PRE><DL COMPACT>
    378  |   +html+ <DT>Online References:
    379  |   +html+ <DD><UL>
    380  |   +html+ </UL></DL>
    381  |
    382  |   ++++++++++++++++++++++++++++++++++++++*/
    383  |
    384  | char *fast_output(const char *str)
    385  | {
    386  | int i,j;
    387  | char *result;
    388  | char result_bit[STR_L];
    389  | char result_buff[STR_XL];
    390  | gchar **lines = g_strsplit(str, "\n", 0);
    391  | char * const *attribute_names;
    392  | gboolean filtering_an_attribute = FALSE;
    393  | char *value;
    394  |
    395  | attribute_names = DF_get_attribute_names();
    396  |
    397  | strcpy(result_buff, "");
    398  |  for (j=0; lines[j] != NULL; j++) {
    399  |    for(i=0; attribute_names[i] != NULL; i++) {
    400  |      if (strncmp(attribute_names[i], lines[j], strlen(attribute_names[i])) == 0) {
    401  |        strcpy(result_bit, "");
    402  |        /* This is the juicy bit that converts the likes of; "source: RIPE" to "*so: RIPE" */
    403  |        value = strchr(lines[j], ':');
    404  |        value++;
    405  |        /* Now get rid of whitespace. */
    406  |        while (*value == ' ' || *value == '\t') {
    407  | 	 value++;
    408  |        }
    409  |        sprintf(result_bit, "*%s: %s\n", DF_get_attribute_code(i), value);
    410  |        strcat(result_buff, result_bit);
    411  |      }
    412  |      /* CONSTCOND */
    413  |      else if (filtering_an_attribute == TRUE) {
    414  |        switch (lines[j][0]) {
    415  |        case ' ':
    416  |        case '\t':
    417  |        case '+':
    418  | 	 strcpy(result_bit, "");
    419  | 	 sprintf(result_bit, "%s\n", lines[j]);
    420  | 	 strcat(result_buff, result_bit);
    421  | 	 break;
    422  |
    423  |        default:
    424  | 	 filtering_an_attribute = FALSE;
    425  |        }
    426  |      }
    427  |    }
    428  |  }
    429  |
    430  |
    431  |  dieif( wr_malloc((void **)&result, strlen(result_buff)+1) != UT_OK);
    432  |
    433  |  strcpy(result, result_buff);
    434  |
    435  |  return result;
    436  | } /* fast_output() */
    437  |
    438  | /* filter() */
    439  | /*++++++++++++++++++++++++++++++++++++++
    440  |   Basically it's for the '-K' flag for non-set (and non-radix) objects.
    441  |   It assumes lines starting with ' ', '\t' or '+' belong to the prior attribute.
    442  |
    443  |   This could be speed up if there were breaks out of the loops, once it matched something.
    444  |   (Wanna add a goto Marek?  :-) ).
    445  |
    446  |   const char *string The string to be filtered.
    447  |
    448  |   More:
    449  |   +html+ <PRE>
    450  |   Authors:
    451  |         ottrey
    452  |   +html+ </PRE><DL COMPACT>
    453  |   +html+ <DT>Online References:
    454  |   +html+ <DD><UL>
    455  |   +html+ </UL></DL>
    456  |
    457  |   ++++++++++++++++++++++++++++++++++++++*/
    458  | char *filter(const char *str) {
    459  |   int i,j, passed=0;
    460  |   char *result;
    461  |   char result_bit[STR_L];
    462  |   char result_buff[STR_XL];
    463  |   gchar **lines = g_strsplit(str, "\n", 0);
    464  |   char * const *filter_names;
    465  |   gboolean filtering_an_attribute = FALSE;
    466  |
    467  |   filter_names = DF_get_filter_names();
    468  |
    469  |   strcpy(result_buff, "");
    470  |   for (i=0; filter_names[i] != NULL; i++) {
    471  |     for (j=0; lines[j] != NULL; j++) {
    472  |       if (strncmp(filter_names[i], lines[j], strlen(filter_names[i])) == 0) {
    473  |         strcpy(result_bit, "");
    474  |         sprintf(result_bit, "%s\n", lines[j]);
    475  |         strcat(result_buff, result_bit);
    476  | 	passed++;
    477  |
    478  | 	/* can someone explain where %^&()! lint sees the condition here ? */
    479  | 	/* CONSTCOND */
    480  |         filtering_an_attribute = TRUE;
    481  |       }
    482  |       /* CONSTCOND */
    483  |       else if (filtering_an_attribute == TRUE) {
    484  |         switch (lines[j][0]) {
    485  |           case ' ':
    486  |           case '\t':
    487  |           case '+':
    488  |             strcpy(result_bit, "");
    489  |             sprintf(result_bit, "%s\n", lines[j]);
    490  |             strcat(result_buff, result_bit);
    491  |           break;
    492  |
    493  |           default:
    494  |             filtering_an_attribute = FALSE;
    495  |         }
    496  |       }
    497  |     }
    498  |   }
    499  |
    500  |   if(passed) {
    501  |     strcat(result_buff, "\n");
    502  |   }
    503  |
    504  |   dieif( wr_malloc((void **)&result, strlen(result_buff)+1) != UT_OK);
    505  |   strcpy(result, result_buff);
    506  |
    507  |   return result;
    508  | } /* filter() */
    509  |
    510  | /* write_results() */
    511  | /*++++++++++++++++++++++++++++++++++++++
    512  |   Write the results to the client socket.
    513  |
    514  |   SQ_result_set_t *result The result set returned from the sql query.
    515  |   unsigned filtered       if the objects should go through a filter (-K)
    516  |   sk_conn_st *condat      Connection data for the client
    517  |
    518  |   XXX NB. this is very dependendant on what rows are returned in the result!!!
    519  |
    520  |   More:
    521  |   +html+ <PRE>
    522  |   Authors:
    523  |         ottrey
    524  |   +html+ </PRE><DL COMPACT>
    525  |   +html+ <DT>Online References:
    526  |   +html+ <DD><UL>
    527  |   +html+ </UL></DL>
    528  |
    529  |   ++++++++++++++++++++++++++++++++++++++*/
    530  | static int write_results(SQ_result_set_t *result,
    531  | 			 unsigned filtered,
    532  | 			 unsigned fast,
    533  | 			 sk_conn_st *condat,
    534  | 			 acc_st    *acc_credit,
    535  | 			 acl_st    *acl
    536  | 			 ) {
    537  |   SQ_row_t *row;
    538  |   char *str;
    539  |   char *filtrate;
    540  |   char *fasted;
    541  |   int retrieved_objects=0;
    542  |   char *objt;
    543  |   int type;
    544  |
    545  |   /* Get all the results - one at a time */
    546  |   if (result != NULL) {
    547  |     /* here we are making use of the mysql_store_result capability
    548  |        of interrupting the cycle of reading rows. mysql_use_result
    549  |        would not allow that, would have to be read until end */
    550  |
    551  |     while ( condat->rtc == 0
    552  | 	    && AC_credit_isdenied( acc_credit ) == 0
    553  | 	    && (row = SQ_row_next(result)) != NULL ) {
    554  |
    555  |       if (  (str = SQ_get_column_string(result, row, 0)) == NULL
    556  | 	    || (objt = SQ_get_column_string(result, row, 3)) == NULL )  {
    557  | 	/* handle it somehow ? */
    558  | 	die;
    559  |       }
    560  |       else  {
    561  | 	/* get + add object type */
    562  | 	type = atoi(objt);
    563  |
    564  | 	/* ASP_QI_LAST_DET */
    565  | 	ER_dbg_va(FAC_QI, ASP_QI_LAST_DET,
    566  | 		  "Retrieved serial id = %d , type = %s", atoi(str), objt);
    567  |
    568  | 	wr_free(str);
    569  | 	wr_free(objt);
    570  |       }
    571  |
    572  |       /* decrement credit for accounting purposes */
    573  |       AC_count_object( acc_credit, acl,
    574  | 		       type == C_PN || type == C_RO ); /* is private? */
    575  |
    576  |       /* break the loop if the credit has just been exceeded and
    577  | 	 further results denied */
    578  |       if( AC_credit_isdenied( acc_credit ) ) {
    579  | 	continue;
    580  |       }
    581  |
    582  |       if ((str = SQ_get_column_string(result, row, 2)) == NULL) { die; }
    583  |       else {
    584  |
    585  |         /* The fast output stage */
    586  |         if (fast == 1) {
    587  |           fasted = fast_output(str);
    588  |           wr_free(str);
    589  |           str = fasted;
    590  |         }
    591  |
    592  |         /* The filtering stage */
    593  |         if (filtered == 0) {
    594  |           SK_cd_puts(condat, str);
    595  | 	  SK_cd_puts(condat, "\n");
    596  |         }
    597  |         else {
    598  |
    599  | 	  /* XXX accounting should be done AFTER that, and not for objects
    600  | 	     filtered out */
    601  |
    602  |           filtrate = filter(str);
    603  |           SK_cd_puts(condat, filtrate);
    604  |           wr_free(filtrate);
    605  |         }
    606  |         retrieved_objects++;
    607  |       }
    608  |       wr_free(str);
    609  |     }
    610  |   }
    611  |
    612  |   return retrieved_objects;
    613  | } /* write_results() */
    614  |
    615  | /* write_objects() */
    616  | /*++++++++++++++++++++++++++++++++++++++
    617  |   This is linked into MySQL by the fact that MySQL doesn't have sub selects
    618  |   (yet).  The queries are done in two stages.  Make some temporary tables and
    619  |   insert into them.  Then use them in the next select.
    620  |
    621  |   SQ_connection_t *sql_connection The connection to the database.
    622  |
    623  |   char *id_table The id of the temporary table (This is a result of the hacky
    624  |                   way we've tried to get MySQL to do sub-selects.)
    625  |
    626  |   sk_conn_st *condat  Connection data for the client
    627  |
    628  |   More:
    629  |   +html+ <PRE>
    630  |   Authors:
    631  |         ottrey
    632  |   +html+ </PRE><DL COMPACT>
    633  |   ++++++++++++++++++++++++++++++++++++++*/
    634  | static void write_objects(SQ_connection_t **sql_connection,
    635  | 			  char *id_table,
    636  | 			  unsigned int filtered,
    637  | 			  unsigned int fast,
    638  | 			  sk_conn_st *condat,
    639  | 			  acc_st    *acc_credit,
    640  | 			  acl_st    *acl
    641  | 			  )
    642  | {
    643  |   /* XXX This should really return a linked list of the objects */
    644  |
    645  |   SQ_result_set_t *result, *order_res;
    646  |   SQ_row_t *order_row;
    647  |   int retrieved_objects=0;
    648  |   char sql_command[STR_XL];
    649  |
    650  | #if 0
    651  |   SQ_execute_query( *sql_connection, "SELECT object_type FROM object_order ORDER BY order_code", &order_res );
    652  |   while( (order_row = SQ_row_next(order_res)) != NULL ) {
    653  |     char *object_type = SQ_get_column_string(order_res, order_row, 0);
    654  |     sprintf(sql_command, Q_OBJECTS, id_table, object_type);
    655  |
    656  |     exec/write
    657  |   }
    658  |   SQ_free_result(order_res);
    659  | #endif
    660  |
    661  |   sprintf(sql_command, Q_OBJECTS, id_table);
    662  |
    663  |   dieif(sql_execute_watched(condat, sql_connection, sql_command, &result) == -1 );
    664  |
    665  |   /* Problem: if the query was aborted, the result structure does not
    666  |      refer to any existing connection anymore. So we check rtc here.
    667  |   */
    668  |
    669  |   if( condat->rtc == 0) {
    670  |     retrieved_objects = write_results(result, filtered, fast, condat,
    671  | 				      acc_credit, acl);
    672  |     SQ_free_result(result);
    673  |   }
    674  | } /* write_objects() */
    675  |
    676  | /* insert_radix_serials() */
    677  | /*++++++++++++++++++++++++++++++++++++++
    678  |   Insert the radix serial numbers into a temporary table in the database.
    679  |
    680  |   mask_t bitmap The bitmap of attribute to be converted.
    681  |
    682  |   SQ_connection_t *sql_connection The connection to the database.
    683  |
    684  |   char *id_table The id of the temporary table (This is a result of the hacky
    685  |                   way we've tried to get MySQL to do sub-selects.)
    686  |
    687  |   GList *datlist The list of data from the radix tree.
    688  |
    689  |   XXX Hmmmmm this isn't really a good place to free things... infact it's quite nasty.  :-(
    690  |
    691  |   More:
    692  |   +html+ <PRE>
    693  |   Authors:
    694  |         ottrey
    695  |   +html+ </PRE><DL COMPACT>
    696  |   +html+ <DT>Online References:
    697  |   +html+ <DD><UL>
    698  |              <LI><A HREF="http://www.gtk.org/rdp/glib/glib-doubly-linked-lists.html">Glist</A>
    699  |   +html+ </UL></DL>
    700  |
    701  |   ++++++++++++++++++++++++++++++++++++++*/
    702  | static void insert_radix_serials(sk_conn_st *condat,
    703  | 				 SQ_connection_t *sql_connection,
    704  | 				 char *id_table, GList *datlist) {
    705  |   GList    *qitem;
    706  |   char sql_command[STR_XL];
    707  |   int serial;
    708  |
    709  |   for( qitem = g_list_first(datlist); qitem != NULL; qitem = g_list_next(qitem)) {
    710  |     rx_datcpy_t *datcpy = qitem->data;
    711  |
    712  |     serial = datcpy->leafcpy.data_key;
    713  |
    714  |     sprintf(sql_command, "INSERT INTO %s values (%d)", id_table, serial);
    715  |     dieif(SQ_execute_query(sql_connection, sql_command, NULL) == -1);
    716  |
    717  |     wr_free(datcpy->leafcpy.data_ptr);
    718  |
    719  |     if(condat->rtc != 0) {
    720  |       break;
    721  |     }
    722  |   }
    723  |
    724  |   wr_clear_list( &datlist );
    725  |
    726  | } /* insert_radix_serials() */
    727  |
    728  |
    729  | /* write_radix_immediate() */
    730  | /*++++++++++++++++++++++++++++++++++++++
    731  |   Display the immediate data carried with the objects returned by the
    732  |   radix tree.
    733  |
    734  |   GList *datlist      The linked list of dataleaf copies
    735  |   sk_conn_st *condat  Connection data for the client
    736  |   acc_st  *acc_credit Accounting struct
    737  |
    738  | More:
    739  |   +html+ <PRE>
    740  |   Authors:
    741  |         marek
    742  |   +html+ </PRE><DL COMPACT>
    743  |   +html+ <DT>Online References:
    744  |   +html+ <DD><UL>
    745  |   +html+ </UL></DL>
    746  |
    747  |
    748  |   Also free the list of answers.
    749  | */
    750  | static void write_radix_immediate(GList *datlist,
    751  | 				  sk_conn_st *condat,
    752  | 				  acc_st    *acc_credit,
    753  | 				  acl_st    *acl)
    754  | {
    755  |   GList    *qitem;
    756  |
    757  |   for( qitem = g_list_first(datlist); qitem != NULL; qitem = g_list_next(qitem)) {
    758  |     rx_datcpy_t *datcpy = qitem->data;
    759  |
    760  |     SK_cd_puts(condat, datcpy->leafcpy.data_ptr );
    761  |     SK_cd_puts(condat, "\n");
    762  |
    763  |     wr_free(datcpy->leafcpy.data_ptr);
    764  |
    765  |     AC_count_object(acc_credit, acl, 0 /* public object (private=0) */ );
    766  |
    767  |     if(condat->rtc != 0) {
    768  |       break;
    769  |     }
    770  |   }
    771  |
    772  |   wr_clear_list( &datlist );
    773  | } /* write_radix_immediate() */
    774  |
    775  |
    776  | /* map_qc2rx() */
    777  | /*++++++++++++++++++++++++++++++++++++++
    778  |   The mapping between a query_command and a radix query.
    779  |
    780  |   Query_instruction *qi The Query Instruction to be created from the mapping
    781  |                         of the query command.
    782  |
    783  |   const Query_command *qc The query command to be mapped.
    784  |
    785  |   More:
    786  |   +html+ <PRE>
    787  |   Authors:
    788  |         ottrey
    789  |   +html+ </PRE><DL COMPACT>
    790  |   +html+ <DT>Online References:
    791  |   +html+ <DD><UL>
    792  |   +html+ </UL></DL>
    793  |
    794  |   ++++++++++++++++++++++++++++++++++++++*/
    795  | static int map_qc2rx(Query_instruction *qi, const Query_command *qc) {
    796  |   int result=1;
    797  |
    798  |   qi->rx_keys = qc->keys;
    799  |
    800  |   if ( (qc->L == 0) && (qc->M == 0) && (qc->l == 0) && (qc->m == 0) && (qc->x == 0) ) {
    801  |     qi->rx_srch_mode = RX_SRCH_EXLESS;
    802  |       qi->rx_par_a = 0;
    803  |   }
    804  |   else if ( (qc->L == 1) && (qc->M == 0) && (qc->l == 0) && (qc->m == 0) && (qc->x == 0) ) {
    805  |     qi->rx_srch_mode = RX_SRCH_LESS;
    806  |     qi->rx_par_a = RX_ALL_DEPTHS;
    807  |   }
    808  |   else if ( (qc->L == 0) && (qc->M == 1) && (qc->l == 0) && (qc->m == 0) && (qc->x == 0) ) {
    809  |     qi->rx_srch_mode = RX_SRCH_MORE;
    810  |       qi->rx_par_a = RX_ALL_DEPTHS;
    811  |   }
    812  |   else if ( (qc->L == 0) && (qc->M == 0) && (qc->l == 1) && (qc->m == 0) && (qc->x == 0) ) {
    813  |     qi->rx_srch_mode = RX_SRCH_LESS;
    814  |     qi->rx_par_a = 1;
    815  |   }
    816  |   else if ( (qc->L == 0) && (qc->M == 0) && (qc->l == 0) && (qc->m == 1) && (qc->x == 0) ) {
    817  |     qi->rx_srch_mode = RX_SRCH_MORE;
    818  |     qi->rx_par_a = 1;
    819  |   }
    820  |   else if ( (qc->L == 0) && (qc->M == 0) && (qc->l == 0) && (qc->m == 0) && (qc->x == 1) ) {
    821  |     qi->rx_srch_mode = RX_SRCH_EXACT;
    822  |     qi->rx_par_a = 0;
    823  |   }
    824  |   else {
    825  |       /* user error  ( XXX : this should have been checked before) */
    826  |
    827  |       ER_dbg_va(FAC_QI, ASP_QI_SKIP,
    828  | 		"ERROR in qc2rx mapping: bad combination of flags");
    829  |       result = 0;
    830  |   }
    831  |
    832  |   return result;
    833  |
    834  | } /* map_qc2rx() */
    835  |
    836  |
    837  | /* run_referral() */
    838  | /*
    839  |    invoked when no such domain found. Goes through the domain table
    840  |    and searches for shorter domains, then if it finds one with referral
    841  |    it performs it, otherwise it just returns nothing.
    842  |
    843  |    to perform referral, it actually composes the referral query
    844  |    for a given host/port/type and calls the whois query function.
    845  |
    846  |    Well, it returns nothing anyway (void). It just prints to the socket.
    847  |
    848  | */
    849  | void run_referral(char *sourcename,
    850  | 		  SQ_connection_t *sql_connection,
    851  | 		  Query_instructions *qis,
    852  | 		  Query_environ *qe,
    853  | 		  int qi_index) {
    854  |   char *dot = qis->qc->keys;
    855  |   char querystr[STR_L];
    856  |   SQ_row_t *row;
    857  |   SQ_result_set_t *result;
    858  |   char sql_command[STR_XL];
    859  |   int stop_loop=0;
    860  |   char *ref_host;
    861  |   char *ref_type;
    862  |   char *ref_port;
    863  |   int  ref_port_int;
    864  |
    865  |   strcpy(querystr,"");
    866  |
    867  |   while( !stop_loop && (dot=index(dot,'.')) != NULL ) {
    868  |     dot++;
    869  |
    870  |     ER_dbg_va(FAC_QI, ASP_QI_REF_DET, "run_referral: checking %s", dot);
    871  |
    872  |     sprintf(sql_command, "SELECT domain.object_id, domain, type, port, host FROM domain, refer WHERE domain.object_id = refer.object_id AND domain = '%s'", dot);
    873  |     dieif( SQ_execute_query(sql_connection, sql_command, &result) == -1);
    874  |
    875  |     switch( SQ_num_rows(result) ) {
    876  |       case 0: /* no such domain -> no action, will try next chunk */
    877  |       break;
    878  |
    879  |       case 1: /* check for referral host and perform query if present
    880  |                in any case end the loop */
    881  |       stop_loop=1;
    882  |       assert( (row = SQ_row_next(result)) != NULL);
    883  |
    884  |       ref_host = SQ_get_column_string(result, row, 4);
    885  |
    886  |       ER_dbg_va(FAC_QI, ASP_QI_REF_GEN, "referral host is %s", ref_host);
    887  |
    888  |       if( ref_host != NULL && strlen(ref_host) > 0 ) {
    889  |         ref_type = SQ_get_column_string(result, row, 2);
    890  |         ref_port = SQ_get_column_string(result, row, 3);
    891  |
    892  |         /* get the integer value, it should be correct */
    893  |         if( sscanf( ref_port, "%d",&ref_port_int) < 1 ) {
    894  |           die;
    895  |         }
    896  |
    897  |         /* compose the query: */
    898  |
    899  |         /* put -r if the reftype is RIPE and -r or -i were used */
    900  |         if( strcmp(ref_type,"RIPE") == 0
    901  |             && (   Query[qis->instruction[qi_index]->queryindex]
    902  |                    .querytype == Q_INVERSE
    903  |                    || qis->recursive > 0  )   ) {
    904  |           strcat(querystr," -r ");
    905  |         }
    906  |
    907  |         /* prepend with -Vversion,IP for type CLIENTADDRESS */
    908  |         if( strcmp(ref_type,"CLIENTADDRESS") == 0 ) {
    909  |           char optv[STR_M];
    910  |
    911  |           snprintf(optv,STR_M," -V%s,%s ","RIP0.88", qe->condat.ip);
    912  |           strcat(querystr,optv);
    913  |         }
    914  |
    915  |         /* now set the search term - set to the stripped down version
    916  |            for inverse query, full-length otherwise */
    917  |         if( Query[qis->instruction[qi_index]->queryindex].querytype == Q_INVERSE ) {
    918  |           strcat(querystr,dot);
    919  |         }
    920  |         else {
    921  |           strcat(querystr,qis->qc->keys);
    922  |         }
    923  |
    924  | 	SK_cd_printf(&(qe->condat),
    925  | "% The object shown below is NOT in the %s database.\n"
    926  | "% It has been obtained by querying a remote server:\n"
    927  | "% (whois.denic.de) at port 43.\n"
    928  | "% To see the object stored in the %s database\n"
    929  | "% use the -R flag in your query.n"
    930  | "%\n"
    931  | "%%% Start of referred query result\n",
    932  | 		   sourcename, sourcename );
    933  |
    934  | 	SK_cd_puts(&(qe->condat), ref_host);
    935  | 	SK_cd_puts(&(qe->condat), "\n\n");
    936  |
    937  |         /* WH_sock(sock, host, port, query, maxlines, timeout)) */
    938  |         switch( WH_sock(qe->condat.sock, ref_host, ref_port_int, querystr,  25, 5) ) {
    939  | 	case WH_TIMEOUT:
    940  | 	    SK_cd_puts(&(qe->condat),"referral timeout\n");
    941  | 	    break;
    942  |
    943  | 	case WH_MAXLINES:
    944  | 	    SK_cd_puts(&(qe->condat),"referral maxlines exceeded\n");
    945  | 	    break;
    946  |
    947  | 	case WH_BADHOST:
    948  | 	    SK_cd_puts(&(qe->condat),"referral host not found\n");
    949  | 	    break;
    950  |
    951  | 	case WH_CONNECT:
    952  | 	    SK_cd_puts(&(qe->condat),"referral host not responding\n");
    953  | 	    break;
    954  |
    955  | 	case WH_BIND:
    956  | 	case WH_SOCKET:
    957  | 	    /* XXX internal server problem... what to do - wait ? */
    958  | 	default:
    959  |           ;
    960  |         } /*switch WH_sock */
    961  |       }
    962  |       break;
    963  |
    964  |       default: /* more than one domain in this file: something broken */
    965  |       die;
    966  |     }
    967  |     SQ_free_result(result);
    968  |   }
    969  | } /*run_referral*/
    970  |
    971  | static
    972  | void
    973  | add_ref_name(SQ_connection_t *sql_connection,
    974  | 	     char *rectable,
    975  | 	     char *allnames
    976  | 	     )
    977  | {
    978  |   /* construct the query, allow zero-length list */
    979  |   if( strlen(allnames) > 0 ) {
    980  |     char final_query[STR_XL];
    981  |     char select_query[STR_XL];
    982  |
    983  |     create_name_query(select_query, "SELECT N00.object_id FROM %s WHERE %s "
    984  | 		      "AND N00.object_type != 100 AND N00.thread_id = 0",
    985  | 		      allnames);
    986  |
    987  |     sprintf(final_query, "INSERT INTO %s %s",
    988  | 	    rectable,
    989  | 	    select_query);
    990  |
    991  |     dieif(SQ_execute_query(sql_connection, final_query, NULL) == -1 );
    992  |
    993  |     allnames[0]=0;
    994  |   }
    995  | }
    996  |
    997  | static
    998  | void
    999  | qi_collect_ids(ca_dbSource_t *dbhdl,
    1000 | 	       char *sourcename,
    1001 | 	       SQ_connection_t **sql_connection,
    1002 | 	       Query_instructions *qis,
    1003 | 	       Query_environ *qe,
    1004 | 	       char *id_table,
    1005 | 	       GList **datlist,
    1006 | 	       acc_st *acc_credit,
    1007 | 	       acl_st *acl
    1008 | 	       )
    1009 | {
    1010 |   Query_instruction **ins=NULL;
    1011 |   int i;
    1012 |   int   count, errors=0;
    1013 |   char sql_command[STR_XL];
    1014 |   er_ret_t err;
    1015 |   char sub_table[32];
    1016 |   int limit ;
    1017 |              /* a limit on the max number of objects to be returned
    1018 | 		from a single search. For some queries the object types
    1019 | 		are not known at this stage, so the limit must be
    1020 | 		the higher number of the two: private / public,
    1021 | 		or unlimited if any of them is 'unlimited'.
    1022 | 	     */
    1023 |   char limit_str[32];
    1024 |
    1025 |   if( (limit = AC_get_higher_limit(acc_credit,acl)) == -1) {
    1026 |     strcpy(limit_str,"");
    1027 |   } else {
    1028 |     sprintf(limit_str," LIMIT %d", limit+1); /* make sure we collect more
    1029 | 						so that the client hits
    1030 | 						the limit */
    1031 |   }
    1032 |
    1033 |   sprintf(sub_table, "%s_S ", id_table);
    1034 |
    1035 |   /* see if there was a leftover table from a crashed session
    1036 |    * (assume the ID cannot be currently in use)
    1037 |    */
    1038 |   sprintf(sql_command, "DROP TABLE IF EXISTS %s", sub_table);
    1039 |   dieif( SQ_execute_query(*sql_connection, sql_command, NULL) == -1 );
    1040 |
    1041 |   /* create a table for special subqueries (domain only for now) */
    1042 |   sprintf(sql_command, "CREATE TABLE %s ( id int ) TYPE=HEAP", sub_table);
    1043 |   dieif( SQ_execute_query(*sql_connection, sql_command, NULL) == -1 );
    1044 |
    1045 |   /* Iterate through query instructions */
    1046 |   ins = qis->instruction;
    1047 |   for (i=0; ins[i] != NULL && errors == 0; i++) {
    1048 |     Query_instruction *qi = ins[i];
    1049 |
    1050 |     /* check if the client is still there */
    1051 |     if( qe->condat.rtc ) {
    1052 |       break;
    1053 |     }
    1054 |
    1055 |     switch ( qi->search_type ) {
    1056 |     case R_SQL:
    1057 |       if ( qi->query_str != NULL ) {
    1058 |
    1059 | 	/* handle special cases first */
    1060 | 	if( Query[qi->queryindex].class == C_DN ) {
    1061 |
    1062 | 	  /* XXX if any more cases than just domain appear, we will be
    1063 | 	     cleaning the _S table from the previous query here
    1064 |
    1065 | 	     "DELETE FROM %s_S"
    1066 | 	  */
    1067 |
    1068 | 	  /* now query into the _S table */
    1069 | 	  sprintf(sql_command, "INSERT INTO %s%s", sub_table, qi->query_str);
    1070 | 	  dieif( SQ_execute_query(*sql_connection, sql_command, NULL) == -1);
    1071 |
    1072 | 	  /* if any results - copy to the id's table.
    1073 | 	     Otherwise, run referral */
    1074 | 	  count = SQ_get_affected_rows(*sql_connection);
    1075 |
    1076 | 	  ER_dbg_va(FAC_QI, ASP_QI_COLL_DET,
    1077 | 		    "DN lookup for %s found %d entries", qis->qc->keys, count);
    1078 |
    1079 | 	  if( count ) {
    1080 | 	    sprintf(sql_command, "INSERT INTO %s SELECT id FROM %s",
    1081 | 		    id_table, sub_table);
    1082 | 	    dieif(SQ_execute_query(*sql_connection, sql_command, NULL) == -1);
    1083 | 	  }
    1084 |
    1085 | 	  if( count == 0
    1086 | 	      || Query[qi->queryindex].querytype == Q_INVERSE ) {
    1087 | 	    /* now: if the domain was not found, we run referral.
    1088 | 	       unless prohibited by a flag
    1089 |
    1090 | 	       But for inverse queries we return the things that were
    1091 | 	       or were not found AND also do the referral unless prohibited.
    1092 | 	    */
    1093 | 	    if (qis->qc->R == 0) {
    1094 | 	      run_referral(sourcename, *sql_connection, qis, qe, i);
    1095 | 	    }
    1096 | 	  }
    1097 |
    1098 | 	} /* if class DN */
    1099 | 	else {
    1100 | 	  /* any other class of query */
    1101 |
    1102 | 	  sprintf(sql_command, "INSERT INTO %s %s %s",
    1103 | 		  id_table, qi->query_str, limit_str);
    1104 |
    1105 | 	  if(sql_execute_watched( &(qe->condat), sql_connection,
    1106 | 				  sql_command, NULL) == -1 ) {
    1107 |
    1108 | 	    ER_perror(FAC_QI, QI_SQLERR," query='%s' [%d] %s",
    1109 | 		      sql_command,
    1110 | 		      SQ_errno(*sql_connection), SQ_error(*sql_connection));
    1111 | 	    errors++;
    1112 | 	  }
    1113 | 	  count = SQ_get_affected_rows(*sql_connection);
    1114 | 	} /* not DN */
    1115 |       } /* if SQL query not NULL */
    1116 |
    1117 |       ER_dbg_va(FAC_QI, ASP_QI_COLL_DET,
    1118 | 		"%d entries added in %s query for %s",
    1119 | 		count, Query[qi->queryindex].descr, qis->qc->keys
    1120 | 		);
    1121 |       break;
    1122 |
    1123 |     case R_RADIX:
    1124 |
    1125 |       if( ! qis->qc->S ) /* XXX patch: use new search algorithm by default */ {
    1126 | 	err = RP_new_asc_search(qi->rx_srch_mode, qi->rx_par_a, 0,
    1127 | 			    qi->rx_keys, dbhdl,
    1128 | 			    Query[qi->queryindex].attribute,
    1129 | 			    datlist, limit);
    1130 |
    1131 |       }
    1132 |       else {
    1133 | 	err = RP_asc_search(qi->rx_srch_mode, qi->rx_par_a, 0,
    1134 | 			    qi->rx_keys, dbhdl,
    1135 | 			    Query[qi->queryindex].attribute,
    1136 | 			    datlist, limit);
    1137 |       }
    1138 |
    1139 |       if( NOERR(err)) {
    1140 | 	if( ER_is_traced(FAC_QI, ASP_QI_COLL_DET ) ) {
    1141 | 	  /* prevent unnecessary g_list_length call */
    1142 |
    1143 | 	  ER_dbg_va(FAC_QI, ASP_QI_COLL_DET,
    1144 | 		    "%d entries after %s (mode %d par %d reg %d) query for %s",
    1145 | 		    g_list_length(*datlist),
    1146 | 		    Query[qi->queryindex].descr,
    1147 | 		    qi->rx_srch_mode, qi->rx_par_a,
    1148 | 		    dbhdl,
    1149 | 		    qi->rx_keys);
    1150 | 	}
    1151 |       }
    1152 |       else {
    1153 | 	ER_inf_va(FAC_QI, ASP_QI_COLL_DET,
    1154 | 		  "RP_asc_search returned %x ", err);
    1155 |       }
    1156 |       break;
    1157 |
    1158 |     default: die;
    1159 |     } /* switch */
    1160 |
    1161 |   } /* for <every instruction> */
    1162 |
    1163 |   /* Now drop the _S table */
    1164 |   sprintf(sql_command, "DROP TABLE %s", sub_table);
    1165 |   dieif(SQ_execute_query(*sql_connection, sql_command, NULL) == -1 );
    1166 |
    1167 | }
    1168 |
    1169 | static
    1170 | void
    1171 | qi_fetch_references(SQ_connection_t **sql_connection,
    1172 | 		    Query_environ *qe,
    1173 | 		    char *id_table,
    1174 | 		    acc_st *acc_credit,
    1175 | 		    acl_st *acl
    1176 | 		    )
    1177 | {
    1178 | char rec_table[32];
    1179 |     SQ_result_set_t *result;
    1180 |     SQ_row_t *row;
    1181 |     int thisid = 0;
    1182 |     int oldid = 0;
    1183 |     char allnames[STR_M];
    1184 |     char sql_command[STR_XL];
    1185 |
    1186 |     sprintf(rec_table, "%s_R", id_table);
    1187 |
    1188 |     /* see if there was a leftover table from a crashed session
    1189 |      * (assume the ID cannot be currently in use)
    1190 |      */
    1191 |     sprintf(sql_command, "DROP TABLE IF EXISTS %s ", rec_table);
    1192 |     dieif( SQ_execute_query(*sql_connection, sql_command, NULL) == -1 );
    1193 |
    1194 |     /* a temporary table for recursive data must be created, because
    1195 |        a query using the same table as a source and target is illegal
    1196 |        ( like: INSERT into ID_123 SELECT * FROM ID_123,admin_c WHERE ... )
    1197 |     */
    1198 |     sprintf(sql_command, "CREATE TABLE %s ( id int PRIMARY KEY NOT NULL ) TYPE=HEAP", rec_table);
    1199 |     dieif(SQ_execute_query(*sql_connection, sql_command, NULL) == -1 );
    1200 |
    1201 |     /* find the contacts */
    1202 |     sprintf(sql_command, Q_REC, rec_table, id_table, "author");
    1203 |     dieif(sql_execute_watched( &(qe->condat), sql_connection, sql_command, NULL) == -1 );
    1204 |
    1205 |     sprintf(sql_command, Q_REC, rec_table, id_table, "admin_c");
    1206 |     dieif(sql_execute_watched(&(qe->condat), sql_connection, sql_command, NULL) == -1 );
    1207 |
    1208 |     sprintf(sql_command, Q_REC, rec_table, id_table, "tech_c" );
    1209 |     dieif(sql_execute_watched(&(qe->condat), sql_connection, sql_command, NULL) == -1 );
    1210 |
    1211 |     sprintf(sql_command, Q_REC, rec_table, id_table, "zone_c" );
    1212 |     dieif(sql_execute_watched(&(qe->condat), sql_connection, sql_command, NULL) == -1 );
    1213 |
    1214 |
    1215 |     /* replace references to dummies by references by name */
    1216 |     sprintf(sql_command,
    1217 | 	    " SELECT id, name    FROM %s IDS STRAIGHT_JOIN names "
    1218 | 	    " WHERE IDS.id = names.object_id "
    1219 | 	    "      AND names.object_type = 100"
    1220 | 	    " ORDER BY id",
    1221 | 	    rec_table);
    1222 |
    1223 |     dieif(sql_execute_watched(&(qe->condat), sql_connection, sql_command,
    1224 | 			      &result) == -1 );
    1225 |     /* well, it might not be -1, but if the watchdog worked then the
    1226 |        result is NULL */
    1227 |     if( result != NULL ) {
    1228 |
    1229 |       allnames[0]=0;
    1230 |       /* now go through the results and collect names */
    1231 |       while ( (qe->condat.rtc == 0)
    1232 | 	      && (row = SQ_row_next(result)) != NULL ) {
    1233 | 	char *id   = SQ_get_column_string(result, row, 0);
    1234 | 	char *name = SQ_get_column_string(result, row, 1);
    1235 |
    1236 | 	thisid = atoi(id);
    1237 |
    1238 | 	/* when the id changes, the name is complete */
    1239 | 	if( thisid != oldid && oldid != 0 ) {
    1240 | 	  add_ref_name( *sql_connection, rec_table, allnames);
    1241 | 	}
    1242 |
    1243 | 	strcat(allnames, name);
    1244 | 	strcat(allnames, " ");
    1245 | 	oldid = thisid;
    1246 | 	wr_free(id);
    1247 | 	wr_free(name);
    1248 |       }
    1249 |       /* also do the last name */
    1250 |       add_ref_name( *sql_connection, rec_table, allnames);
    1251 |
    1252 |       SQ_free_result(result); /* we can do it only because the watchdog */
    1253 |       /* has not started between the check for non-NULL result and here */
    1254 |     }
    1255 |
    1256 |     /* now copy things back to the main temporary table   */
    1257 |     sprintf(sql_command, "INSERT INTO %s SELECT * FROM %s",
    1258 | 	    id_table, rec_table);
    1259 |     dieif(SQ_execute_query(*sql_connection, sql_command, NULL) == -1 );
    1260 |
    1261 |     /* Now drop the IDS recursive table */
    1262 |     sprintf(sql_command, "DROP TABLE %s", rec_table);
    1263 |     dieif(SQ_execute_query(*sql_connection, sql_command, NULL) == -1 );
    1264 | }
    1265 |
    1266 |
    1267 | /* QI_execute() */
    1268 | /*++++++++++++++++++++++++++++++++++++++
    1269 |   Execute the query instructions.  This is called for each source.
    1270 |
    1271 |   void *database_voidptr Pointer to the database name
    1272 |
    1273 |   void *qis_voidptr Pointer to the query_instructions.
    1274 |
    1275 |   More:
    1276 |   +html+ <PRE>
    1277 |   Authors:
    1278 |         ottrey
    1279 |   +html+ </PRE>
    1280 |   ++++++++++++++++++++++++++++++++++++++*/
    1281 | er_ret_t QI_execute(ca_dbSource_t *dbhdl,
    1282 | 		    Query_instructions *qis,
    1283 | 		    Query_environ *qe,
    1284 | 		    acc_st *acc_credit,
    1285 | 		    acl_st *acl
    1286 | 		    )
    1287 | {
    1288 |   /* those things must be freed after use! */
    1289 |   char *dbhost = ca_get_srcdbmachine(dbhdl);
    1290 |   char *dbname = ca_get_srcdbname(dbhdl);
    1291 |   char *dbuser = ca_get_srcdbuser(dbhdl);
    1292 |   char *dbpass = ca_get_srcdbpassword(dbhdl);
    1293 |   char *srcnam = ca_get_srcname(dbhdl);
    1294 |   Query_instruction **ins=NULL;
    1295 |   char id_table[STR_S];
    1296 |   char sql_command[STR_XL];
    1297 |   GList *datlist=NULL;
    1298 |   int i;
    1299 |   SQ_connection_t *sql_connection=NULL;
    1300 |   int   count, errors=0;
    1301 |   er_ret_t err;
    1302 |
    1303 |   sql_connection = SQ_get_connection( dbhost, ca_get_srcdbport(dbhdl),
    1304 | 				      dbname, dbuser, dbpass );
    1305 |   if (sql_connection == NULL) {
    1306 |     ER_perror(FAC_QI, QI_CANTDB," database='%s' [%d] %s",
    1307 | 	      dbname, SQ_errno(sql_connection), SQ_error(sql_connection));
    1308 |     return QI_CANTDB;
    1309 |   }
    1310 |
    1311 |   sprintf(id_table, "ID_%ld_%d",   mysql_thread_id(sql_connection),
    1312 | 	  pthread_self());
    1313 |
    1314 |   /* see if there was a leftover table from a crashed session
    1315 |    * (assume the ID cannot be currently in use)
    1316 |    */
    1317 |   sprintf(sql_command, "DROP TABLE IF EXISTS %s ", id_table);
    1318 |   dieif( SQ_execute_query(sql_connection, sql_command, NULL) == -1 );
    1319 |
    1320 |   /* create a table for id's of all objects found NOT NULL , UNIQUE(id) */
    1321 |   sprintf(sql_command, "CREATE TABLE %s ( id int PRIMARY KEY NOT NULL ) TYPE=HEAP", id_table);
    1322 |   dieif( SQ_execute_query(sql_connection, sql_command, NULL) == -1 );
    1323 |
    1324 |   qi_collect_ids(dbhdl, srcnam, &sql_connection, qis, qe, id_table,
    1325 | 		 &datlist, acc_credit, acl);
    1326 |
    1327 |   /* post-processing */
    1328 |   if( qis->filtered == 0 ) {
    1329 |     /* start the watchdog just to set the rtc flag */
    1330 |     SK_watchclear(&(qe->condat));
    1331 |     SK_watchstart(&(qe->condat));
    1332 |
    1333 |     /* add radix results (only if -K is not active) */
    1334 |     insert_radix_serials(&(qe->condat), sql_connection, id_table, datlist);
    1335 |
    1336 |     SK_watchstop(&(qe->condat));
    1337 |   }
    1338 |
    1339 |   /* fetch recursive objects (ac,tc,zc,ah) */
    1340 |   if ( qis->recursive ) {
    1341 |     qi_fetch_references( &sql_connection, qe, id_table, acc_credit, acl);
    1342 |   } /* if recursive */
    1343 |
    1344 |   /* display */
    1345 |   /* -K filtering:
    1346 |    * right now only filtering, no expanding sets like write_set_objects()
    1347 |    */
    1348 |
    1349 |   /* display the immediate data from the radix tree */
    1350 |   if( qis->filtered == 1 ) {
    1351 |     write_radix_immediate(datlist, &(qe->condat), acc_credit, acl );
    1352 |   }
    1353 |
    1354 |   /* display objects from the IDs table */
    1355 |   write_objects( &sql_connection, id_table, qis->filtered,
    1356 | 		qis->fast, &(qe->condat), acc_credit, acl);
    1357 |
    1358 |   /* Now drop the IDS table */
    1359 |   sprintf(sql_command, "DROP TABLE %s", id_table);
    1360 |   dieif(SQ_execute_query(sql_connection, sql_command, NULL) == -1 );
    1361 |   SQ_close_connection(sql_connection);
    1362 |
    1363 |   /* free allocated parameters */
    1364 |   wr_free(dbhost);
    1365 |   wr_free(dbname);
    1366 |   wr_free(dbuser);
    1367 |   wr_free(dbpass);
    1368 |   wr_free(srcnam);
    1369 |
    1370 |   return QI_OK;
    1371 | } /* QI_execute() */
    1372 |
    1373 |
    1374 | /* instruction_free() */
    1375 | /*++++++++++++++++++++++++++++++++++++++
    1376 |   Free the instruction.
    1377 |
    1378 |   Query_instruction *qi query_instruction to be freed.
    1379 |
    1380 |   More:
    1381 |   +html+ <PRE>
    1382 |   Authors:
    1383 |         ottrey
    1384 |   +html+ </PRE>
    1385 |   ++++++++++++++++++++++++++++++++++++++*/
    1386 | static void instruction_free(Query_instruction *qi) {
    1387 |   if (qi != NULL) {
    1388 |     if (qi->query_str != NULL) {
    1389 |       wr_free(qi->query_str);
    1390 |     }
    1391 |     wr_free(qi);
    1392 |   }
    1393 | } /* instruction_free() */
    1394 |
    1395 | /* QI_free() */
    1396 | /*++++++++++++++++++++++++++++++++++++++
    1397 |   Free the query_instructions.
    1398 |
    1399 |   Query_instructions *qis Query_instructions to be freed.
    1400 |
    1401 |   XXX This isn't working too well at the moment.
    1402 |
    1403 |   More:
    1404 |   +html+ <PRE>
    1405 |   Authors:
    1406 |         ottrey
    1407 |   +html+ </PRE>
    1408 |   ++++++++++++++++++++++++++++++++++++++*/
    1409 | void QI_free(Query_instructions *qis) {
    1410 |   int i;
    1411 |
    1412 |   for (i=0; qis->instruction[i] != NULL; i++) {
    1413 |     instruction_free(qis->instruction[i]);
    1414 |   }
    1415 |
    1416 |   if (qis != NULL) {
    1417 |     wr_free(qis);
    1418 |   }
    1419 |
    1420 | } /* QI_free() */
    1421 |
    1422 | /*++++++++++++++++++++++++++++++++++++++
    1423 |   Determine if this query should be conducted or not.
    1424 |
    1425 |   If it was an inverse query - it the attribute appears in the query command's bitmap.
    1426 |   If it was a lookup query - if the attribute appears in the object type bitmap or
    1427 |                              disregard if there is no object_type bitmap (Ie object filter).
    1428 |
    1429 |   mask_t bitmap The bitmap of attribute to be converted.
    1430 |
    1431 |   const Query_command *qc The query_command that the instructions are created
    1432 |                           from.
    1433 |
    1434 |   const Query_t q The query being investigated.
    1435 |
    1436 |   ++++++++++++++++++++++++++++++++++++++*/
    1437 | static int valid_query(const Query_command *qc, const Query_t q) {
    1438 |   int result=0;
    1439 |
    1440 |   if (MA_isset(qc->keytypes_bitmap, q.keytype) == 1) {
    1441 |     if (q.query != NULL) {
    1442 |       switch (q.querytype) {
    1443 |         case Q_INVERSE:
    1444 |           if (MA_isset(qc->inv_attrs_bitmap, q.attribute) ) {
    1445 |             result = 1;
    1446 |           }
    1447 |         break;
    1448 |
    1449 |         case Q_LOOKUP:
    1450 |           if (MA_bitcount(qc->object_type_bitmap) == 0) {
    1451 |             result=1;
    1452 |           }
    1453 |           else if (q.class<0 || MA_isset(qc->object_type_bitmap, q.class)) {
    1454 |             result=1;
    1455 |           }
    1456 |         break;
    1457 |
    1458 |         default:
    1459 |           fprintf(stderr, "qi:valid_query() -> Bad querytype\n");
    1460 |       }
    1461 |     }
    1462 |   }
    1463 |
    1464 |   return result;
    1465 | } /* valid_query() */
    1466 |
    1467 | /* QI_new() */
    1468 | /*++++++++++++++++++++++++++++++++++++++
    1469 |   Create a new set of query_instructions.
    1470 |
    1471 |   const Query_command *qc The query_command that the instructions are created
    1472 |                           from.
    1473 |
    1474 |   const Query_environ *qe The environmental variables that they query is being
    1475 |                           performed under.
    1476 |   More:
    1477 |   +html+ <PRE>
    1478 |   Authors:
    1479 |         ottrey
    1480 |   +html+ </PRE>
    1481 |   ++++++++++++++++++++++++++++++++++++++*/
    1482 | Query_instructions *QI_new(const Query_command *qc, const Query_environ *qe) {
    1483 |   Query_instructions *qis=NULL;
    1484 |   Query_instruction *qi=NULL;
    1485 |   int i_no=0;
    1486 |   int i;
    1487 |   char *query_str;
    1488 |
    1489 |   dieif(wr_calloc( (void **) & qis, 1, sizeof(Query_instructions)) != UT_OK);
    1490 |
    1491 |   qis->filtered = qc->filtered;
    1492 |   qis->fast = qc->fast;
    1493 |   qis->recursive = qc->recursive;
    1494 |   qis->qc = (qc);
    1495 |
    1496 |
    1497 |   for (i=0; Query[i].query != NULL; i++) {
    1498 |
    1499 |     /* If a valid query. */
    1500 |     if ( valid_query(qc, Query[i]) == 1) {
    1501 |
    1502 |       dieif( wr_calloc((void **) &qi, 1, sizeof(Query_instruction)) != UT_OK);
    1503 |
    1504 |       qi->queryindex = i;
    1505 |
    1506 |       /* SQL Query */
    1507 |       if ( Query[i].refer == R_SQL) {
    1508 |         qi->search_type = R_SQL;
    1509 |         query_str = create_query(Query[i], qc);
    1510 |
    1511 |         if (query_str!= NULL) {
    1512 |           qi->query_str = query_str;
    1513 |           qis->instruction[i_no++] = qi;
    1514 |         }
    1515 |       }
    1516 |       /* Radix Query */
    1517 |       else if (Query[i].refer == R_RADIX) {
    1518 |         qi->search_type = R_RADIX;
    1519 |
    1520 |         if (map_qc2rx(qi, qc) == 1) {
    1521 | 	  int j;
    1522 | 	  int found=0;
    1523 |
    1524 |           /* check that there is no such query yet, for example if
    1525 | 	     more than one keytype (wk) matched */
    1526 | 	  for (j=0; j<i_no; j++) {
    1527 | 	    Query_instruction *qij = qis->instruction[j];
    1528 |
    1529 | 	    if(    qij->search_type == R_RADIX
    1530 | 		   && Query[qij->queryindex].attribute
    1531 | 		   == Query[qi ->queryindex].attribute) {
    1532 |
    1533 |               found=1;
    1534 |               break;
    1535 |             }
    1536 |           }
    1537 |
    1538 |           if ( found ) {
    1539 |             /* Discard the Query Instruction */
    1540 |             wr_free(qi);
    1541 |           }
    1542 |           else {
    1543 |             /* Add the query_instruction to the array */
    1544 |             qis->instruction[i_no++] = qi;
    1545 |           }
    1546 |         }
    1547 |       }
    1548 |       else {
    1549 | 	  /* ERROR: bad search_type */
    1550 | 	  die;
    1551 |       }
    1552 |     }
    1553 |   }
    1554 |   qis->instruction[i_no++] = NULL;
    1555 |
    1556 |
    1557 |   {  /* tracing */
    1558 |       char *descrstr = QI_queries_to_string(qis);
    1559 |
    1560 |       ER_dbg_va(FAC_QI, ASP_QI_COLL_GEN, "Queries: %s", descrstr );
    1561 |       wr_free( descrstr );
    1562 |   }
    1563 |
    1564 |   return qis;
    1565 |
    1566 | } /* QI_new() */
    1567 |
    1568 | /* QI_queries_to_string()
    1569 |
    1570 |    returns a list of descriptions for queries that will be performed.
    1571 | */
    1572 |
    1573 | char *QI_queries_to_string(Query_instructions *qis)
    1574 | {
    1575 |    Query_instruction *qi;
    1576 |    int i;
    1577 |    char *resstr = NULL;
    1578 |
    1579 |    dieif( wr_realloc((void **)&resstr, 2 ) != UT_OK);
    1580 |    strcpy(resstr, "{");
    1581 |
    1582 |    for( i = 0; ( qi=qis->instruction[i] ) != NULL;  i++ ) {
    1583 |        char *descr = Query[qi->queryindex].descr;
    1584 |        int oldres = strlen( resstr );
    1585 |
    1586 |        dieif( wr_realloc((void **)&resstr, oldres+strlen(descr)+2) != UT_OK);
    1587 |        strcat(resstr, descr);
    1588 |        strcat(resstr, ",");
    1589 |    }
    1590 |    if( i>0 ) {
    1591 |        /* cancel the last comma */
    1592 |        resstr[strlen(resstr)-1] = 0;
    1593 |    }
    1594 |
    1595 |    dieif( wr_realloc((void **)&resstr, strlen( resstr ) + 2 )
    1596 | 	  != UT_OK);
    1597 |    strcat(resstr, "}");
    1598 |
    1599 |    return resstr;
    1600 | }