\n";
exit();
}
if (!msql_select_db($msql_db, $dbc)) {
echo "Cannot open database $msql_db, giving up.";
echo "Error message: ", msql_error(), "
\n";
exit();
}
$dbi['dbc'] = $dbc;
$dbi['table'] = $dbinfo['table']; // page metadata
$dbi['page_table'] = $dbinfo['page_table']; // page content
return $dbi;
}
function CloseDataBase($dbi) {
// NOP function
// msql connections are established as persistant
// they cannot be closed through msql_close()
}
function msqlDecomposeString($string) {
$ret_arr = array();
$el = 0;
// zero, one, infinity
// account for the small case
if (strlen($string) < MSQL_MAX_LINE_LENGTH) {
$ret_arr[$el] = $string;
return $ret_arr;
}
$words = array();
$line = $string2 = "";
// split on single spaces
$words = preg_split("/ /", $string);
$num_words = count($words);
reset($words);
$ret_arr[0] = $words[0];
$line = " $words[1]";
// for all words, build up lines < MSQL_MAX_LINE_LENGTH in $ret_arr
for ($x = 2; $x < $num_words; $x++) {
$length = strlen($line) + strlen($words[$x])
+ strlen($ret_arr[$el]) + 1;
if ($length < MSQL_MAX_LINE_LENGTH) {
$line .= " " . $words[$x];
} else {
// put this line in the return array, reset, continue
$ret_arr[$el++] .= $line;
$line = " $words[$x]"; // reset
}
}
$ret_arr[$el] = $line;
return $ret_arr;
}
// Take form data and prepare it for the db
function MakeDBHash($pagename, $pagehash)
{
$pagehash["pagename"] = addslashes($pagename);
if (!isset($pagehash["flags"]))
$pagehash["flags"] = 0;
if (!isset($pagehash["content"]))
$pagehash["content"] = array();
$pagehash["author"] = addslashes($pagehash["author"]);
$pagehash["refs"] = serialize($pagehash["refs"]);
return $pagehash;
}
// Take db data and prepare it for display
function MakePageHash($dbhash)
{
// unserialize/explode content
$dbhash['refs'] = unserialize($dbhash['refs']);
return $dbhash;
}
// Return hash of page + attributes or default
function RetrievePage($dbi, $pagename) {
$pagename = addslashes($pagename);
$query = "select * from $dbi[table] where pagename='$pagename'";
if ($res = msql_query($query, $dbi['dbc'])) {
$dbhash = msql_fetch_array($res);
$query = "select lineno,line from $dbi[page_table] " .
"where pagename='$pagename' " .
"order by lineno";
if ($res = msql_query($query, $dbi[dbc])) {
$dbhash["content"] = array();
while ($row = msql_fetch_array($res)) {
$dbhash["content"][ $row["lineno"] ] = $row["line"];
}
}
return MakePageHash($dbhash);
}
return -1;
}
// Either insert or replace a key/value (a page)
function InsertPage($dbi, $pagename, $pagehash)
{
$pagehash = MakeDBHash($pagename, $pagehash);
// temporary hack until the time stuff is brought up to date
$pagehash["created"] = time();
$pagehash["lastmodified"] = time();
if (IsWikiPage($dbi, $pagename)) {
$PAIRS = "author='$pagehash[author]'," .
"created=$pagehash[created]," .
"flags=$pagehash[flags]," .
"lastmodified=$pagehash[lastmodified]," .
"pagename='$pagehash[pagename]'," .
"refs='$pagehash[refs]'," .
"version=$pagehash[version]";
$query = "UPDATE $dbi[table] SET $PAIRS WHERE pagename='$pagename'";
} else {
// do an insert
// build up the column names and values for the query
$COLUMNS = "author, created, flags, lastmodified, " .
"pagename, refs, version";
$VALUES = "'$pagehash[author]', " .
"$pagehash[created], $pagehash[flags], " .
"$pagehash[lastmodified], '$pagehash[pagename]', " .
"'$pagehash[refs]', $pagehash[version]";
$query = "INSERT INTO $dbi[table] ($COLUMNS) VALUES($VALUES)";
}
// echo "Query: $query
\n";
// first, insert the metadata
$retval = msql_query($query, $dbi['dbc']);
if ($retval == false)
echo "Insert/update failed: ", msql_error(), "
\n";
// second, insert the page data
// remove old data from page_table
$query = "delete from $dbi[page_table] where pagename='$pagename'";
echo "Delete query: $query
\n";
$retval = msql_query($query, $dbi['dbc']);
if ($retval == false)
echo "Delete on $dbi[page_table] failed: ", msql_error(), "
\n";
// insert the new lines
reset($pagehash["content"]);
$tmparray = array();
$y = 0;
for ($x = 0; $x < count($pagehash["content"]); $x++) {
// manage line length here, lines should not exceed the
// length MSQL_MAX_LINE_LENGTH or something
if (strlen($pagehash["content"][$x]) > MSQL_MAX_LINE_LENGTH) {
$length = strlen($pagehash["content"][$x]);
echo "Must break up line ($length): " . $pagehash["content"][$x] ."
\n";
// can I cheat and use preg_split to break the line up?
// match this line with: /(.{1,127})+/
// in fact, split it on a zero-width metachar every 127th position
// take the returned array and add elements to $tmparray
} else {
$tmparray[$y] = $pagehash["content"][$x];
$y++;
}
}
reset($tmparray);
for ($x = 0; $x < count($tmparray); $x ++) {
$line = addslashes($tmparray[$x]);
$query = "INSERT INTO $dbi[page_table] " .
"(pagename, lineno, line) " .
"VALUES('$pagename', $x, '$line')";
echo "Page line insert query: $query
\n";
$retval = msql_query($query, $dbi['dbc']);
if ($retval == false)
echo "Insert into $dbi[page_table] failed: ", msql_error(), "
\n";;
}
//echo "
inserted $x lines for $pagename
\n";
}
function IsWikiPage($dbi, $pagename) {
$pagename = addslashes($pagename);
$query = "select pagename from $dbi[table] where pagename='$pagename'";
// echo "Query: $query
\n";
if ($res = msql_query($query, $dbi['dbc'])) {
return(msql_affected_rows($res));
}
}
// setup for title-search
function InitTitleSearch($dbi, $search) {
$search = addslashes($search);
$query = "select pagename from $dbi[table] " .
"where pagename clike '%$search%' order by pagename";
$res = msql_query($query, $dbi["dbc"]);
return $res;
}
// iterating through database
function TitleSearchNextMatch($dbi, $res) {
if($o = msql_fetch_object($res)) {
return $o->pagename;
}
else {
return 0;
}
}
// setup for full-text search
function InitFullSearch($dbi, $search) {
$search = addslashes($search);
$query = "select * from $dbi[table] where searchterms clike '%$search%'";
$res = msql_query($query, $dbi["dbc"]);
return $res;
}
// iterating through database
function FullSearchNextMatch($dbi, $res) {
if($hash = msql_fetch_array($res)) {
return MakePageHash($hash);
} else {
return 0;
}
}
////////////////////////
// new database features
function IncreaseHitCount($dbi, $pagename) {
return;
$query = "update hitcount set hits=hits+1 where pagename='$pagename'";
$res = mysql_query($query, $dbi['dbc']);
if (!mysql_affected_rows($dbi['dbc'])) {
$query = "insert into hitcount (pagename, hits) " .
"values ('$pagename', 1)";
$res = mysql_query($query, $dbi['dbc']);
}
return $res;
}
function GetHitCount($dbi, $pagename) {
return;
$query = "select hits from hitcount where pagename='$pagename'";
$res = mysql_query($query, $dbi['dbc']);
if (mysql_num_rows($res)) {
$hits = mysql_result($res, 0);
} else {
$hits = "0";
}
return $hits;
}
function InitMostPopular($dbi, $limit) {
return;
$query = "select * from hitcount " .
"order by hits desc, pagename limit $limit";
$res = mysql_query($query);
return $res;
}
function MostPopularNextMatch($dbi, $res) {
return;
if ($hits = mysql_fetch_array($res)) {
return $hits;
} else {
return 0;
}
}
?>