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PDO php script implementation #486

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merged 6 commits into from
Nov 20, 2023
Merged

PDO php script implementation #486

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c9473ea
pdo connector implementation
Oct 11, 2023
76b32b1
renamed php script
Oct 11, 2023
151cc8f
made mysql default
Oct 11, 2023
97781a2
made errors generic
Oct 11, 2023
51f0c78
Some small changes to make it work with mysql
TBlueF Nov 18, 2023
b05d45f
Better newlines
TBlueF Nov 18, 2023
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123 changes: 70 additions & 53 deletions BlueMapCommon/webapp/public/mysql.php → BlueMapCommon/webapp/public/sql.php
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@

// !!! SET YOUR SQL-CONNECTION SETTINGS HERE: !!!

$driver = 'mysql'; // 'mysql' (MySQL) or 'pgsql' (PostgreSQL)
$hostname = '127.0.0.1';
$port = 3306;
$username = 'root';
Expand Down Expand Up @@ -85,6 +86,14 @@ function getMimeType($path) {
return $mimeDefault;
}

function send($data) {
if (is_resource($data)) {
fpassthru($data);
} else {
echo $data;
}
}

// determine relative request-path
$root = dirname($_SERVER['PHP_SELF']);
if ($root === "/" || $root === "\\") $root = "";
Expand All @@ -111,9 +120,12 @@ function getMimeType($path) {
$mapId = $pathParts[0];
$mapPath = explode("?", $pathParts[1], 2)[0];

// get sql-connection
$sql = new mysqli($hostname, $username, $password, $database, $port);
if ($sql->errno) error(500, "Failed to connect to Database!");
// Initialize PDO
try {
$sql = new PDO("$driver:host=$hostname;dbname=$database", $username, $password);
$sql->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e ) { error(500, "Failed to connect to database"); }


// provide map-tiles
if (startsWith($mapPath, "tiles/")) {
Expand All @@ -126,67 +138,72 @@ function getMimeType($path) {
$compression = $lod === 0 ? $hiresCompression : "none";

// query for tile
$statement = $sql->prepare("
SELECT t.`data`
FROM `bluemap_map_tile` t
INNER JOIN `bluemap_map` m
ON t.`map` = m.`id`
INNER JOIN `bluemap_map_tile_compression` c
ON t.`compression` = c.`id`
WHERE m.`map_id` = ?
AND t.`lod` = ?
AND t.`x` = ?
AND t.`z` = ?
AND c.`compression` = ?
");
$statement->bind_param("siiis", $mapId, $lod, $tileX, $tileZ, $compression);
$statement->execute();
if ($statement->errno) error(500, "Database query failed!");

// return result
$result = $statement->get_result();
if ($result && $line = $result->fetch_assoc()) {
if ($compression !== "none")
header("Content-Encoding: $compression");

if ($lod === 0) {
header("Content-Type: application/json");
} else {
header("Content-Type: image/png");
try {
$statement = $sql->prepare("
SELECT t.data
FROM bluemap_map_tile t
INNER JOIN bluemap_map m
ON t.map = m.id
INNER JOIN bluemap_map_tile_compression c
ON t.compression = c.id
WHERE m.map_id = :map_id
AND t.lod = :lod
AND t.x = :x
AND t.z = :z
AND c.compression = :compression
");
$statement->bindParam( ':map_id', $mapId, PDO::PARAM_STR );
$statement->bindParam( ':lod', $lod, PDO::PARAM_INT );
$statement->bindParam( ':x', $tileX, PDO::PARAM_INT );
$statement->bindParam( ':z', $tileZ, PDO::PARAM_INT );
$statement->bindParam( ':compression', $compression, PDO::PARAM_STR);
$statement->setFetchMode(PDO::FETCH_ASSOC);
$statement->execute();

// return result
if ($line = $statement->fetch()) {
if ($compression !== "none")
header("Content-Encoding: $compression");
if ($lod === 0) {
header("Content-Type: application/json");
} else {
header("Content-Type: image/png");
}
send($line["data"]);
exit;
}

echo $line["data"];
exit;
}
} catch (PDOException $e) { error(500, "Failed to fetch data"); }

// empty json response if nothing found
header("Content-Type: application/json");
echo "{}";
exit;

}

// provide meta-files
$statement = $sql->prepare("
SELECT t.`value`
FROM `bluemap_map_meta` t
INNER JOIN `bluemap_map` m
ON t.`map` = m.`id`
WHERE m.`map_id` = ?
AND t.`key` = ?
");
$statement->bind_param("ss", $mapId, $mapPath);
$statement->execute();
if ($statement->errno) error(500, "Database query failed!");

$result = $statement->get_result();
if ($result && $line = $result->fetch_assoc()) {
header("Content-Type: ".getMimeType($mapPath));
echo $line["value"];
exit;
}
try {
$statement = $sql->prepare("
SELECT t.value
FROM bluemap_map_meta t
INNER JOIN bluemap_map m
ON t.map = m.id
WHERE m.map_id = :map_id
AND t.key = :map_path
");
$statement->bindParam( ':map_id', $mapId, PDO::PARAM_STR );
$statement->bindParam( ':map_path', $mapPath, PDO::PARAM_STR );
$statement->setFetchMode(PDO::FETCH_ASSOC);
$statement->execute();

if ($line = $statement->fetch()) {
header("Content-Type: ".getMimeType($mapPath));
send($line["value"]);
exit;
}
} catch (PDOException $e) { error(500, "Failed to fetch data"); }

}

// no match => 404
error(404);
error(404);
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