| 1 | /*$Id: tagmsg.c,v 1.2 1999/10/07 23:31:01 lindberg Exp $*/ |
| 2 | /*$Name: ezmlm-idx-040 $*/ |
| 3 | #include "stralloc.h" |
| 4 | #include "scan.h" |
| 5 | #include "fmt.h" |
| 6 | #include "strerr.h" |
| 7 | #include "cookie.h" |
| 8 | #include "slurp.h" |
| 9 | #include "errtxt.h" |
| 10 | #include "subscribe.h" |
| 11 | #include "makehash.h" |
| 12 | #include <unistd.h> |
| 13 | #include <libpq-fe.h> |
| 14 | |
| 15 | static stralloc line = {0}; |
| 16 | static stralloc key = {0}; |
| 17 | static char hash[COOKIE]; |
| 18 | static char strnum[FMT_ULONG]; /* message number as sz */ |
| 19 | |
| 20 | static void die_nomem(fatal) |
| 21 | char *fatal; |
| 22 | { |
| 23 | strerr_die2x(100,fatal,ERR_NOMEM); |
| 24 | } |
| 25 | |
| 26 | void tagmsg(dir,msgnum,seed,action,hashout,bodysize,chunk,fatal) |
| 27 | /* This routine creates a cookie from num,seed and the */ |
| 28 | /* list key and returns that cookie in hashout. The use of sender/num and */ |
| 29 | /* first char of action is used to make cookie differ between messages, */ |
| 30 | /* the key is the secret list key. The cookie will be inserted into */ |
| 31 | /* table_cookie where table and other data is taken from dir/sql. We log */ |
| 32 | /* arrival of the message (done=0). */ |
| 33 | |
| 34 | char *dir; /* db base dir */ |
| 35 | unsigned long msgnum; /* number of this message */ |
| 36 | char *seed; /* seed. NULL ok, but less entropy */ |
| 37 | char *action; /* to make it certain the cookie differs from*/ |
| 38 | /* one used for a digest */ |
| 39 | char *hashout; /* calculated hash goes here */ |
| 40 | unsigned long bodysize; |
| 41 | unsigned long chunk; |
| 42 | char *fatal; |
| 43 | { |
| 44 | PGresult *result; |
| 45 | PGresult *result2; /* Need for dupicate check */ |
| 46 | char *table = (char *) 0; |
| 47 | char *ret; |
| 48 | unsigned int i; |
| 49 | |
| 50 | strnum[fmt_ulong(strnum,msgnum)] = '\0'; /* message nr ->string*/ |
| 51 | |
| 52 | switch(slurp("key",&key,32)) { |
| 53 | case -1: |
| 54 | strerr_die3sys(111,fatal,ERR_READ,"key: "); |
| 55 | case 0: |
| 56 | strerr_die3x(100,fatal,"key",ERR_NOEXIST); |
| 57 | } |
| 58 | cookie(hash,key.s,key.len,strnum,seed,action); |
| 59 | for (i = 0; i < COOKIE; i++) |
| 60 | hashout[i] = hash[i]; |
| 61 | |
| 62 | if ((ret = opensql(dir,&table))) { |
| 63 | if (*ret) strerr_die2x(111,fatal,ret); |
| 64 | return; /* no sql => success */ |
| 65 | |
| 66 | } else { |
| 67 | if (chunk >= 53L) chunk = 0L; /* sanity */ |
| 68 | |
| 69 | /* INSERT INTO table_cookie (msgnum,cookie) VALUES (num,cookie) */ |
| 70 | /* (we may have tried message before, but failed to complete, so */ |
| 71 | /* ER_DUP_ENTRY is ok) */ |
| 72 | if (!stralloc_copys(&line,"INSERT INTO ")) die_nomem(fatal); |
| 73 | if (!stralloc_cats(&line,table)) die_nomem(fatal); |
| 74 | if (!stralloc_cats(&line,"_cookie (msgnum,cookie,bodysize,chunk) VALUES (")) |
| 75 | die_nomem(fatal); |
| 76 | if (!stralloc_cats(&line,strnum)) die_nomem(fatal); |
| 77 | if (!stralloc_cats(&line,",'")) die_nomem(fatal); |
| 78 | if (!stralloc_catb(&line,hash,COOKIE)) die_nomem(fatal); |
| 79 | if (!stralloc_cats(&line,"',")) die_nomem(fatal); |
| 80 | if (!stralloc_catb(&line,strnum,fmt_ulong(strnum,bodysize))) |
| 81 | die_nomem(fatal); |
| 82 | if (!stralloc_cats(&line,",")) die_nomem(fatal); |
| 83 | if (!stralloc_catb(&line,strnum,fmt_ulong(strnum,chunk))) die_nomem(fatal); |
| 84 | if (!stralloc_cats(&line,")")) die_nomem(fatal); |
| 85 | |
| 86 | if (!stralloc_0(&line)) die_nomem(fatal); |
| 87 | result = PQexec(psql,line.s); |
| 88 | if (result == NULL) |
| 89 | strerr_die2x(111,fatal,PQerrorMessage(psql)); |
| 90 | if (PQresultStatus(result) != PGRES_COMMAND_OK) { /* Possible tuplicate */ |
| 91 | if (!stralloc_copys(&line,"SELECT msgnum FROM ")) die_nomem(fatal); |
| 92 | if (!stralloc_cats(&line,table)) die_nomem(fatal); |
| 93 | if (!stralloc_cats(&line,"_cookie WHERE msgnum = ")) die_nomem(fatal); |
| 94 | if (!stralloc_catb(&line,strnum,fmt_ulong(strnum,msgnum))) |
| 95 | die_nomem(fatal); |
| 96 | /* Query */ |
| 97 | if (!stralloc_0(&line)) die_nomem(fatal); |
| 98 | result2 = PQexec(psql,line.s); |
| 99 | if (result2 == NULL) |
| 100 | strerr_die2x(111,fatal,PQerrorMessage(psql)); |
| 101 | if (PQresultStatus(result2) != PGRES_TUPLES_OK) |
| 102 | strerr_die2x(111,fatal,PQresultErrorMessage(result2)); |
| 103 | /* No duplicate, return ERROR from first query */ |
| 104 | if (PQntuples(result2)<1) |
| 105 | strerr_die2x(111,fatal,PQresultErrorMessage(result)); |
| 106 | PQclear(result2); |
| 107 | } |
| 108 | PQclear(result); |
| 109 | |
| 110 | if (! (ret = logmsg(dir,msgnum,0L,0L,1))) return; /* log done=1*/ |
| 111 | if (*ret) strerr_die2x(111,fatal,ret); |
| 112 | } |
| 113 | |
| 114 | return; |
| 115 | } |