Merge pull request #469 from lonvia/refactor-php

Some refactoring of website php
2024-12-28 23:42:59 +03:00 · 2016-06-13 20:13:38 +02:00 · 2016-06-13 20:13:38 +02:00 · b14bc75dc4
commit b14bc75dc4
parent 860acbf6af 10c5d7f6f6
27 changed files with 456 additions and 489 deletions
--- a/lib/Geocode.php
+++ b/lib/Geocode.php
@ -514,12 +514,8 @@

 			$sSQL .= " order by importance desc";
 			if (CONST_Debug) { echo "<hr>"; var_dump($sSQL); }
-			$aSearchResults = $this->oDB->getAll($sSQL);
-
-			if (PEAR::IsError($aSearchResults))
-			{
-				failInternalError("Could not get details for place.", $sSQL, $aSearchResults);
-			}
+			$aSearchResults = chksql($this->oDB->getAll($sSQL),
+			                         "Could not get details for place.");

 			return $aSearchResults;
 		}
@ -883,19 +879,13 @@
 				$sViewboxCentreSQL .= ")'::geometry,4326)";

 				$sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/69).")";
-				$this->sViewboxSmallSQL = $this->oDB->getOne($sSQL);
-				if (PEAR::isError($this->sViewboxSmallSQL))
-				{
-					failInternalError("Could not get small viewbox.", $sSQL, $this->sViewboxSmallSQL);
-				}
+				$this->sViewboxSmallSQL = chksql($this->oDB->getOne($sSQL),
+				                                 "Could not get small viewbox.");
 				$this->sViewboxSmallSQL = "'".$this->sViewboxSmallSQL."'::geometry";

 				$sSQL = "select st_buffer(".$sViewboxCentreSQL.",".(float)($_GET['routewidth']/30).")";
-				$this->sViewboxLargeSQL = $this->oDB->getOne($sSQL);
-				if (PEAR::isError($this->sViewboxLargeSQL))
-				{
-					failInternalError("Could not get large viewbox.", $sSQL, $this->sViewboxLargeSQL);
-				}
+				$this->sViewboxLargeSQL = chksql($this->oDB->getOne($sSQL),
+				                                 "Could not get large viewbox.");
 				$this->sViewboxLargeSQL = "'".$this->sViewboxLargeSQL."'::geometry";
 				$bBoundingBoxSearch = $this->bBoundedSearch;
 			}
@ -961,11 +951,11 @@
 				foreach($aSpecialTermsRaw as $aSpecialTerm)
 				{
 					$sQuery = str_replace($aSpecialTerm[0], ' ', $sQuery);
-					$sToken = $this->oDB->getOne("select make_standard_name('".$aSpecialTerm[1]."') as string");
+					$sToken = chksql($this->oDB->getOne("select make_standard_name('".$aSpecialTerm[1]."') as string"));
 					$sSQL = 'select * from (select word_id,word_token, word, class, type, country_code, operator';
 					$sSQL .= ' from word where word_token in (\' '.$sToken.'\')) as x where (class is not null and class not in (\'place\')) or country_code is not null';
 					if (CONST_Debug) var_Dump($sSQL);
-					$aSearchWords = $this->oDB->getAll($sSQL);
+					$aSearchWords = chksql($this->oDB->getAll($sSQL));
 					$aNewSearches = array();
 					foreach($aSearches as $aSearch)
 					{
@ -1010,13 +1000,8 @@
 				$aTokens = array();
 				foreach($aPhrases as $iPhrase => $sPhrase)
 				{
-					$aPhrase = $this->oDB->getRow("select make_standard_name('".pg_escape_string($sPhrase)."') as string");
-					if (PEAR::isError($aPhrase))
-					{
-						userError("Illegal query string (not an UTF-8 string): ".$sPhrase);
-						if (CONST_Debug) var_dump($aPhrase);
-						exit;
-					}
+					$aPhrase = chksql($this->oDB->getRow("select make_standard_name('".pg_escape_string($sPhrase)."') as string"),
+					                  "Cannot nomralize query string (is it an UTF-8 string?)");
 					if (trim($aPhrase['string']))
 					{
 						$aPhrases[$iPhrase] = $aPhrase;
@ -1043,11 +1028,14 @@
 					if (CONST_Debug) var_Dump($sSQL);

 					$aValidTokens = array();
-					if (sizeof($aTokens)) $aDatabaseWords = $this->oDB->getAll($sSQL);
-					else $aDatabaseWords = array();
-					if (PEAR::IsError($aDatabaseWords))
+					if (sizeof($aTokens))
 					{
-						failInternalError("Could not get word tokens.", $sSQL, $aDatabaseWords);
+						$aDatabaseWords = chksql($this->oDB->getAll($sSQL),
+						                         "Could not get word tokens.");
+					}
+					else
+					{
+						$aDatabaseWords = array();
 					}
 					$aPossibleMainWordIDs = array();
 					$aWordFrequencyScores = array();
@ -1264,7 +1252,7 @@
 										$sSQL .= " and _st_intersects($this->sViewboxSmallSQL, geometry)";
 									$sSQL .= " order by st_area(geometry) desc limit 1";
 									if (CONST_Debug) var_dump($sSQL);
-									$aPlaceIDs = $this->oDB->getCol($sSQL);
+									$aPlaceIDs = chksql($this->oDB->getCol($sSQL));
 								}
 								else
 								{
@ -1276,7 +1264,7 @@
 								if (!$bBoundingBoxSearch && !$aSearch['fLon']) continue;
 								if (!$aSearch['sClass']) continue;
 								$sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
-								if ($this->oDB->getOne($sSQL))
+								if (chksql($this->oDB->getOne($sSQL)))
 								{
 									$sSQL = "select place_id from place_classtype_".$aSearch['sClass']."_".$aSearch['sType']." ct";
 									if ($sCountryCodesSQL) $sSQL .= " join placex using (place_id)";
@ -1289,7 +1277,7 @@
 									if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
 									$sSQL .= " limit $this->iLimit";
 									if (CONST_Debug) var_dump($sSQL);
-									$aPlaceIDs = $this->oDB->getCol($sSQL);
+									$aPlaceIDs = chksql($this->oDB->getCol($sSQL));

 									// If excluded place IDs are given, it is fair to assume that
 									// there have been results in the small box, so no further
@ -1304,7 +1292,7 @@
 										if ($sViewboxCentreSQL) $sSQL .= " order by st_distance($sViewboxCentreSQL, ct.centroid) asc";
 										$sSQL .= " limit $this->iLimit";
 										if (CONST_Debug) var_dump($sSQL);
-										$aPlaceIDs = $this->oDB->getCol($sSQL);
+										$aPlaceIDs = chksql($this->oDB->getCol($sSQL));
 									}
 								}
 								else
@ -1315,7 +1303,7 @@
 									if ($sViewboxCentreSQL)	$sSQL .= " order by st_distance($sViewboxCentreSQL, centroid) asc";
 									$sSQL .= " limit $this->iLimit";
 									if (CONST_Debug) var_dump($sSQL);
-									$aPlaceIDs = $this->oDB->getCol($sSQL);
+									$aPlaceIDs = chksql($this->oDB->getCol($sSQL));
 								}
 							}
 						}
@ -1426,11 +1414,8 @@
 									$sSQL .= " limit ".$this->iLimit;

 								if (CONST_Debug) { var_dump($sSQL); }
-								$aViewBoxPlaceIDs = $this->oDB->getAll($sSQL);
-								if (PEAR::IsError($aViewBoxPlaceIDs))
-								{
-									failInternalError("Could not get places for search terms.", $sSQL, $aViewBoxPlaceIDs);
-								}
+								$aViewBoxPlaceIDs = chksql($this->oDB->getAll($sSQL),
+								                           "Could not get places for search terms.");
 								//var_dump($aViewBoxPlaceIDs);
 								// Did we have an viewbox matches?
 								$aPlaceIDs = array();
@ -1464,7 +1449,7 @@
 								}
 								$sSQL .= " limit $this->iLimit";
 								if (CONST_Debug) var_dump($sSQL);
-								$aPlaceIDs = $this->oDB->getCol($sSQL);
+								$aPlaceIDs = chksql($this->oDB->getCol($sSQL));
 								
 								// if nothing found, search in the interpolation line table
 								if(!sizeof($aPlaceIDs))
@ -1486,7 +1471,7 @@
 									//$sSQL .= " limit $this->iLimit";
 									if (CONST_Debug) var_dump($sSQL);
 									//get place IDs
-									$aPlaceIDs = $this->oDB->getCol($sSQL, 0);
+									$aPlaceIDs = chksql($this->oDB->getCol($sSQL, 0));
 								}
 									
 								// If nothing found try the aux fallback table
@ -1499,7 +1484,7 @@
 									}
 									//$sSQL .= " limit $this->iLimit";
 									if (CONST_Debug) var_dump($sSQL);
-									$aPlaceIDs = $this->oDB->getCol($sSQL);
+									$aPlaceIDs = chksql($this->oDB->getCol($sSQL));
 								}

 								//if nothing was found in placex or location_property_aux, then search in Tiger data for this housenumber(location_property_tiger)
@ -1521,7 +1506,7 @@
 									//$sSQL .= " limit $this->iLimit";
 									if (CONST_Debug) var_dump($sSQL);
 									//get place IDs
-									$aPlaceIDs = $this->oDB->getCol($sSQL, 0);
+									$aPlaceIDs = chksql($this->oDB->getCol($sSQL, 0));
 								}

 								// Fallback to the road (if no housenumber was found)
@ -1548,18 +1533,18 @@
 									if ($sCountryCodesSQL) $sSQL .= " and calculated_country_code in ($sCountryCodesSQL)";
 									$sSQL .= " order by rank_search asc limit $this->iLimit";
 									if (CONST_Debug) var_dump($sSQL);
-									$aClassPlaceIDs = $this->oDB->getCol($sSQL);
+									$aClassPlaceIDs = chksql($this->oDB->getCol($sSQL));
 								}

 								if (!$aSearch['sOperator'] || $aSearch['sOperator'] == 'near') // & in
 								{
 									$sSQL = "select count(*) from pg_tables where tablename = 'place_classtype_".$aSearch['sClass']."_".$aSearch['sType']."'";
-									$bCacheTable = $this->oDB->getOne($sSQL);
+									$bCacheTable = chksql($this->oDB->getOne($sSQL));

 									$sSQL = "select min(rank_search) from placex where place_id in ($sPlaceIDs)";

 									if (CONST_Debug) var_dump($sSQL);
-									$this->iMaxRank = ((int)$this->oDB->getOne($sSQL));
+									$this->iMaxRank = ((int)chksql($this->oDB->getOne($sSQL)));

 									// For state / country level searches the normal radius search doesn't work very well
 									$sPlaceGeom = false;
@ -1568,7 +1553,7 @@
 										// Try and get a polygon to search in instead
 										$sSQL = "select geometry from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank + 5 and st_geometrytype(geometry) in ('ST_Polygon','ST_MultiPolygon') order by rank_search asc limit 1";
 										if (CONST_Debug) var_dump($sSQL);
-										$sPlaceGeom = $this->oDB->getOne($sSQL);
+										$sPlaceGeom = chksql($this->oDB->getOne($sSQL));
 									}

 									if ($sPlaceGeom)
@ -1580,7 +1565,7 @@
 										$this->iMaxRank += 5;
 										$sSQL = "select place_id from placex where place_id in ($sPlaceIDs) and rank_search < $this->iMaxRank";
 										if (CONST_Debug) var_dump($sSQL);
-										$aPlaceIDs = $this->oDB->getCol($sSQL);
+										$aPlaceIDs = chksql($this->oDB->getCol($sSQL));
 										$sPlaceIDs = join(',',$aPlaceIDs);
 									}

@ -1619,7 +1604,7 @@
 											if ($this->iOffset) $sSQL .= " offset $this->iOffset";
 											$sSQL .= " limit $this->iLimit";
 											if (CONST_Debug) var_dump($sSQL);
-											$aClassPlaceIDs = array_merge($aClassPlaceIDs, $this->oDB->getCol($sSQL));
+											$aClassPlaceIDs = array_merge($aClassPlaceIDs, chksql($this->oDB->getCol($sSQL)));
 										}
 										else
 										{
@ -1641,7 +1626,7 @@
 											if ($this->iOffset) $sSQL .= " offset $this->iOffset";
 											$sSQL .= " limit $this->iLimit";
 											if (CONST_Debug) var_dump($sSQL);
-											$aClassPlaceIDs = array_merge($aClassPlaceIDs, $this->oDB->getCol($sSQL));
+											$aClassPlaceIDs = array_merge($aClassPlaceIDs, chksql($this->oDB->getCol($sSQL)));
 										}
 									}
 								}
@ -1652,11 +1637,6 @@

 						}

-						if (PEAR::IsError($aPlaceIDs))
-						{
-							failInternalError("Could not get place IDs from tokens." ,$sSQL, $aPlaceIDs);
-						}
-
 						if (CONST_Debug) { echo "<br><b>Place IDs:</b> "; var_Dump($aPlaceIDs); }

 						foreach($aPlaceIDs as $iPlaceID)
@ -1685,7 +1665,7 @@
 						$sSQL .= ") UNION select place_id from location_property_osmline where place_id in (".join(',',array_keys($aResultPlaceIDs)).")";
 						$sSQL .= " and (30 between $this->iMinAddressRank and $this->iMaxAddressRank)";
 						if (CONST_Debug) var_dump($sSQL);
-						$aFilteredPlaceIDs = $this->oDB->getCol($sSQL);
+						$aFilteredPlaceIDs = chksql($this->oDB->getCol($sSQL));
 						$tempIDs = array();
 						foreach($aFilteredPlaceIDs as $placeID)
 						{
--- a/lib/PlaceLookup.php
+++ b/lib/PlaceLookup.php
@ -100,7 +100,7 @@
 		function setOSMID($sType, $iID)
 		{
 			$sSQL = "select place_id from placex where osm_type = '".pg_escape_string($sType)."' and osm_id = ".(int)$iID." order by type = 'postcode' asc";
-			$this->iPlaceID = $this->oDB->getOne($sSQL);
+			$this->iPlaceID = chksql($this->oDB->getOne($sSQL));
 		}

 		function lookupPlace($details)
@ -175,13 +175,7 @@
 				$sSQL .= " from placex where place_id = ".(int)$this->iPlaceID;
 			}

-			$aPlace = $this->oDB->getRow($sSQL);
-
-
-			if (PEAR::IsError($aPlace))
-			{
-				failInternalError("Could not lookup place.", $sSQL, $aPlace);
-			}
+			$aPlace = chksql($this->oDB->getRow($sSQL), "Could not lookup place");

 			if (!$aPlace['place_id']) return null;

@ -248,13 +242,7 @@
 			if (!$bAll) $sSQL .= " WHERE isaddress OR type = 'country_code'";
 			$sSQL .= " order by rank_address desc,isaddress desc";

-			$aAddressLines = $this->oDB->getAll($sSQL);
-			if (PEAR::IsError($aAddressLines))
-			{
-				var_dump($aAddressLines);
-				exit;
-			}
-			return $aAddressLines;
+			return chksql($this->oDB->getAll($sSQL));
 		}

 		function getAddressNames($housenumber = -1)
@ -332,12 +320,8 @@
 					$sSQL .= $sFrom;
 				}

-				$aPointPolygon = $this->oDB->getRow($sSQL);
-				if (PEAR::IsError($aPointPolygon))
-				{
-					echo var_dump($aPointPolygon);
-					failInternalError("Could not get outline.", $sSQL, $aPointPolygon);
-				}
+				$aPointPolygon = chksql($this->oDB->getRow($sSQL),
+				                        "Could not get outline");

 				if ($aPointPolygon['place_id'])
 				{
--- a/lib/ReverseGeocode.php
+++ b/lib/ReverseGeocode.php
@ -148,11 +148,8 @@
 				$sSQL .= ' OR ST_DWithin('.$sPointSQL.', centroid, '.$fSearchDiam.'))';
 				$sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', geometry) ASC limit 1';
 				if (CONST_Debug) var_dump($sSQL);
-				$aPlace = $this->oDB->getRow($sSQL);
-				if (PEAR::IsError($aPlace))
-				{
-					failInternalError("Could not determine closest place.", $sSQL, $aPlace);
-				}
+				$aPlace = chksql($this->oDB->getRow($sSQL),
+				                 "Could not determine closest place.");
 				$iPlaceID = $aPlace['place_id'];
 				$iParentPlaceID = $aPlace['parent_place_id'];
 				$bIsInUnitedStates = ($aPlace['calculated_country_code'] == 'us');
@ -172,17 +169,14 @@
 					$sSQL = preg_replace('/limit 1/', 'limit 100', $sSQL);
 					var_dump($sSQL);

-					$aAllHouses = $this->oDB->getAll($sSQL);
+					$aAllHouses = chksql($this->oDB->getAll($sSQL));
 					foreach($aAllHouses as $i)
 					{
 						echo $i['housenumber'] . ' | ' . $i['distance'] * 1000 . ' | ' . $i['lat'] . ' | ' . $i['lon']. ' | '. "<br>\n";
 					}
 				}
-				$aPlaceLine = $this->oDB->getRow($sSQL);
-				if (PEAR::IsError($aPlaceLine))
-				{
-					failInternalError("Could not determine closest housenumber on an osm interpolation line.", $sSQL, $aPlaceLine);
-				}
+				$aPlaceLine = chksql($this->oDB->getRow($sSQL),
+				                     "Could not determine closest housenumber on an osm interpolation line.");
 				if ($aPlaceLine)
 				{
 					if (CONST_Debug) var_dump('found housenumber in interpolation lines table', $aPlaceLine);
@ -192,20 +186,14 @@
 						// if the placex house or the interpolated house are closer to the searched point
 						// distance between point and placex house
 						$sSQL = 'SELECT ST_distance('.$sPointSQL.', house.geometry) as distance FROM placex as house WHERE house.place_id='.$iPlaceID;
-						$aDistancePlacex = $this->oDB->getRow($sSQL);
-						if (PEAR::IsError($aDistancePlacex))
-						{
-							failInternalError("Could not determine distance between searched point and placex house.", $sSQL, $aDistancePlacex);
-						}
+						$aDistancePlacex = chksql($this->oDB->getRow($sSQL),
+						                          "Could not determine distance between searched point and placex house.");
 						$fDistancePlacex = $aDistancePlacex['distance'];
 						// distance between point and interpolated house (fraction on interpolation line)
 						$sSQL = 'SELECT ST_distance('.$sPointSQL.', ST_LineInterpolatePoint(linegeo, '.$aPlaceLine['fraction'].')) as distance';
 						$sSQL .= ' FROM location_property_osmline WHERE place_id = '.$aPlaceLine['place_id'];
-						$aDistanceInterpolation = $this->oDB->getRow($sSQL);
-						if (PEAR::IsError($aDistanceInterpolation))
-						{
-							failInternalError("Could not determine distance between searched point and interpolated house.", $sSQL, $aDistanceInterpolation);
-						}
+						$aDistanceInterpolation = chksql($this->oDB->getRow($sSQL),
+						                                 "Could not determine distance between searched point and interpolated house.");
 						$fDistanceInterpolation = $aDistanceInterpolation['distance'];
 						if ($fDistanceInterpolation < $fDistancePlacex)
 						{
@ -244,18 +232,15 @@
 					$sSQL = preg_replace('/limit 1/', 'limit 100', $sSQL);
 					var_dump($sSQL);

-					$aAllHouses = $this->oDB->getAll($sSQL);
+					$aAllHouses = chksql($this->oDB->getAll($sSQL));
 					foreach($aAllHouses as $i)
 					{
 						echo $i['housenumber'] . ' | ' . $i['distance'] * 1000 . ' | ' . $i['lat'] . ' | ' . $i['lon']. ' | '. "<br>\n";
 					}
 				}

-				$aPlaceTiger = $this->oDB->getRow($sSQL);
-				if (PEAR::IsError($aPlaceTiger))
-				{
-					failInternalError("Could not determine closest Tiger place.", $sSQL, $aPlaceTiger);
-				}
+				$aPlaceTiger = chksql($this->oDB->getRow($sSQL),
+				                      "Could not determine closest Tiger place.");
 				if ($aPlaceTiger)
 				{
 					if (CONST_Debug) var_dump('found Tiger housenumber', $aPlaceTiger);
@ -279,11 +264,8 @@
 				$sSQL .= " WHERE place_id = $iPlaceID";
 				$sSQL .= " ORDER BY abs(cached_rank_address - $iMaxRank) asc,cached_rank_address desc,isaddress desc,distance desc";
 				$sSQL .= ' LIMIT 1';
-				$iPlaceID = $this->oDB->getOne($sSQL);
-				if (PEAR::IsError($iPlaceID))
-				{
-					failInternalError("Could not get parent for place.", $sSQL, $iPlaceID);
-				}
+				$iPlaceID = chksql($this->oDB->getOne($sSQL),
+				                   "Could not get parent for place.");
 				if (!$iPlaceID)
 				{
 					$iPlaceID = $aPlace['place_id'];
--- a/lib/db.php
+++ b/lib/db.php
@ -4,13 +4,8 @@
 	function &getDB($bNew = false, $bPersistent = false)
 	{
 		// Get the database object
-		$oDB = DB::connect(CONST_Database_DSN.($bNew?'?new_link=true':''), $bPersistent);
-		if (PEAR::IsError($oDB))
-		{
-			var_dump(CONST_Database_DSN);
-			var_Dump($oDB);
-			fail($oDB->getMessage());
-		}
+		$oDB = chksql(DB::connect(CONST_Database_DSN.($bNew?'?new_link=true':''), $bPersistent),
+		              "Failed to establish database connection");
 		$oDB->setFetchMode(DB_FETCHMODE_ASSOC);
 		$oDB->query("SET DateStyle TO 'sql,european'");
 		$oDB->query("SET client_encoding TO 'utf-8'");
--- a/lib/init-website.php
+++ b/lib/init-website.php
@ -1,5 +1,6 @@
 <?php
 	require_once('init.php');
+	require_once('website.php');

 	if (CONST_NoAccessControl)
 	{
--- a/lib/lib.php
+++ b/lib/lib.php
@ -1,51 +1,5 @@
 <?php

-	function failInternalError($sError, $sSQL = false, $vDumpVar = false)
-	{
-		header('HTTP/1.0 500 Internal Server Error');
-		header('Content-type: text/html; charset=utf-8');
-		echo "<html><body><h1>Internal Server Error</h1>";
-		echo '<p>Nominatim has encountered an internal error while processing your request. This is most likely because of a bug in the software.</p>';
-		echo "<p><b>Details:</b> ".$sError,"</p>";
-		echo '<p>Feel free to report the bug in the <a href="http://trac.openstreetmap.org">OSM bug database</a>. Please include the error message above and the URL you used.</p>';
-		if (CONST_Debug)
-		{
-			echo "<hr><h2>Debugging Information</h2><br>";
-			if ($sSQL)
-			{
-				echo "<h3>SQL query</h3><code>".$sSQL."</code>";
-			}
-			if ($vDumpVar)
-			{
-				echo "<h3>Result</h3> <code>";
-				var_dump($vDumpVar);
-				echo "</code>";
-			}
-		}
-		echo "\n</body></html>\n";
-		exit;
-	}
-
-
-	function userError($sError)
-	{
-		header('HTTP/1.0 400 Bad Request');
-		header('Content-type: text/html; charset=utf-8');
-		echo "<html><body><h1>Bad Request</h1>";
-		echo '<p>Nominatim has encountered an error with your request.</p>';
-		echo "<p><b>Details:</b> ".$sError,"</p>";
-		echo '<p>If you feel this error is incorrect feel free to report the bug in the <a href="http://trac.openstreetmap.org">OSM bug database</a>. Please include the error message above and the URL you used.</p>';
-		echo "\n</body></html>\n";
-		exit;
-	}
-
-	function getParamBool($name, $default=false)
-	{
-		if (!isset($_GET[$name])) return $default;
-
-		return (bool) $_GET[$name];
-	}
-
 	function fail($sError, $sUserError = false)
 	{
 		if (!$sUserError) $sUserError = $sError;
@ -223,12 +177,7 @@
 	{
 		// Try an exact match on the gb_postcode table
 		$sSQL = 'select \'AA\', ST_X(ST_Centroid(geometry)) as lon,ST_Y(ST_Centroid(geometry)) as lat from gb_postcode where postcode = \''.$sPostcode.'\'';
-		$aNearPostcodes = $oDB->getAll($sSQL);
-		if (PEAR::IsError($aNearPostcodes))
-		{
-			var_dump($sSQL, $aNearPostcodes);
-			exit;
-		}
+		$aNearPostcodes = chksql($oDB->getAll($sSQL));

 		if (sizeof($aNearPostcodes))
 		{
@ -701,12 +650,7 @@
 		if (!$bRaw) $sSQL .= " WHERE isaddress OR type = 'country_code'";
 		$sSQL .= " order by rank_address desc,isaddress desc";

-		$aAddressLines = $oDB->getAll($sSQL);
-		if (PEAR::IsError($aAddressLines))
-		{
-			var_dump($aAddressLines);
-			exit;
-		}
+		$aAddressLines = chksql($oDB->getAll($sSQL));
 		if ($bRaw) return $aAddressLines;
 		//echo "<pre>";
 		//var_dump($aAddressLines);
@ -804,12 +748,7 @@
 			$sSQL .= ' OR ST_DWithin('.$sPointSQL.', ST_Centroid(geometry), '.$fSearchDiam.'))';
 			$sSQL .= ' ORDER BY ST_distance('.$sPointSQL.', geometry) ASC limit 1';
 			//var_dump($sSQL);
-			$aPlace = $oDB->getRow($sSQL);
-			if (PEAR::IsError($aPlace))
-			{
-				var_Dump($sSQL, $aPlace);
-				exit;
-			}
+			$aPlace = chksql($oDB->getRow($sSQL));
 			$iPlaceID = $aPlace['place_id'];
 		}

@ -817,22 +756,12 @@
 		if ($iPlaceID)
 		{
 			$sSQL = "select address_place_id from place_addressline where cached_rank_address <= $iMaxRank and place_id = $iPlaceID order by cached_rank_address desc,isaddress desc,distance desc limit 1";
-			$iPlaceID = $oDB->getOne($sSQL);
-			if (PEAR::IsError($iPlaceID))
-			{
-				var_Dump($sSQL, $iPlaceID);
-				exit;
-			}
+			$iPlaceID = chksql($oDB->getOne($sSQL));

 			if ($iPlaceID && $aPlace['place_id'] && $iMaxRank < 28)
 			{
 				$sSQL = "select address_place_id from place_addressline where cached_rank_address <= $iMaxRank and place_id = ".$aPlace['place_id']." order by cached_rank_address desc,isaddress desc,distance desc";
-				$iPlaceID = $oDB->getOne($sSQL);
-				if (PEAR::IsError($iPlaceID))
-				{
-					var_Dump($sSQL, $iPlaceID);
-					exit;
-				}
+				$iPlaceID = chksql($oDB->getOne($sSQL));
 			}
 			if (!$iPlaceID)
 			{
--- a/lib/output.php
+++ b/lib/output.php
@ -0,0 +1,43 @@
+<?php
+
+	function formatOSMType($sType, $bIncludeExternal=true)
+	{
+		if ($sType == 'N') return 'node';
+		if ($sType == 'W') return 'way';
+		if ($sType == 'R') return 'relation';
+
+		if (!$bIncludeExternal) return '';
+
+		if ($sType == 'T') return 'tiger';
+		if ($sType == 'I') return 'way';
+
+		return '';
+	}
+
+	function osmLink($aFeature, $sRefText=false)
+	{
+		$sOSMType = formatOSMType($aFeature['osm_type'], false);
+		if ($sOSMType)
+		{
+			return '<a href="//www.openstreetmap.org/'.$sOSMType.'/'.$aFeature['osm_id'].'">'.$sOSMType.' '.($sRefText?$sRefText:$aFeature['osm_id']).'</a>';
+		}
+		return '';
+	}
+
+	function wikipediaLink($aFeature)
+	{
+		if ($aFeature['wikipedia'])
+		{
+			list($sLanguage, $sArticle) = explode(':',$aFeature['wikipedia']);
+			return '<a href="https://'.$sLanguage.'.wikipedia.org/wiki/'.urlencode($sArticle).'" target="_blank">'.$aFeature['wikipedia'].'</a>';
+		}
+		return '';
+	}
+
+	function detailsLink($aFeature, $sTitle=false)
+	{
+		if (!$aFeature['place_id']) return '';
+
+		return '<a href="details.php?place_id='.$aFeature['place_id'].'">'.($sTitle?$sTitle:$aFeature['place_id']).'</a>';
+	}
+
--- a/lib/template/address-json.php
+++ b/lib/template/address-json.php
@ -12,8 +12,7 @@
 	{
 		if (isset($aPlace['place_id'])) $aFilteredPlaces['place_id'] = $aPlace['place_id'];
 		$aFilteredPlaces['licence'] = "Data © OpenStreetMap contributors, ODbL 1.0. http://www.openstreetmap.org/copyright";
-		$sOSMType = ($aPlace['osm_type'] == 'N'?'node':($aPlace['osm_type'] == 'W'?'way':($aPlace['osm_type'] == 'R'?'relation':
-		($aPlace['osm_type'] == 'T'?'tiger':($aPlace['osm_type'] == 'I'?'interpolation':'')))));
+		$sOSMType = formatOSMType($aPlace['osm_type']);
 		if ($sOSMType)
 		{
 			$aFilteredPlaces['osm_type'] = $sOSMType;
@ -29,11 +28,6 @@
 		if (isset($aPlace['aBoundingBox']))
 		{
 			$aFilteredPlaces['boundingbox'] = $aPlace['aBoundingBox'];
-
-			if (isset($aPlace['aPolyPoints']) && $bAsPoints)
-			{
-				$aFilteredPlaces['polygonpoints'] = $aPlace['aPolyPoints'];
-			}
 		}

 		if (isset($aPlace['asgeojson']))
@ -55,8 +49,6 @@
 		{
 			$aFilteredPlaces['geokml'] = $aPlace['askml'];
 		}
-
-
 	}

 	javascript_renderData($aFilteredPlaces);
--- a/lib/template/address-jsonv2.php
+++ b/lib/template/address-jsonv2.php
@ -12,8 +12,7 @@
 	{
 		if ($aPlace['place_id']) $aFilteredPlaces['place_id'] = $aPlace['place_id'];
 		$aFilteredPlaces['licence'] = "Data © OpenStreetMap contributors, ODbL 1.0. http://www.openstreetmap.org/copyright";
-		$sOSMType = ($aPlace['osm_type'] == 'N'?'node':($aPlace['osm_type'] == 'W'?'way':($aPlace['osm_type'] == 'R'?'relation':
-		($aPlace['osm_type'] == 'T'?'tiger':($aPlace['osm_type'] == 'I'?'interpolation':'')))));
+		$sOSMType = formatOSMType($aPlace['osm_type']);
 		if ($sOSMType)
 		{
 			$aFilteredPlaces['osm_type'] = $sOSMType;
@ -41,11 +40,6 @@
 		if (isset($aPlace['aBoundingBox']))
 		{
 			$aFilteredPlaces['boundingbox'] = $aPlace['aBoundingBox'];
-
-			if (isset($aPlace['aPolyPoints']) && $bAsPoints)
-			{
-				$aFilteredPlaces['polygonpoints'] = $aPlace['aPolyPoints'];
-			}
 		}

 		if (isset($aPlace['asgeojson']))
--- a/lib/template/address-xml.php
+++ b/lib/template/address-xml.php
@ -22,8 +22,7 @@
 	{
 		echo "<result";
 		if ($aPlace['place_id']) echo ' place_id="'.$aPlace['place_id'].'"';
-		$sOSMType = ($aPlace['osm_type'] == 'N'?'node':($aPlace['osm_type'] == 'W'?'way':($aPlace['osm_type'] == 'R'?'relation':
-		($aPlace['osm_type'] == 'T'?'tiger':($aPlace['osm_type'] == 'I'?'interpolation':'')))));
+		$sOSMType = formatOSMType($aPlace['osm_type']);
 		if ($sOSMType) echo ' osm_type="'.$sOSMType.'"'.' osm_id="'.$aPlace['osm_id'].'"';
 		if ($aPlace['ref']) echo ' ref="'.htmlspecialchars($aPlace['ref']).'"';
 		if (isset($aPlace['lat'])) echo ' lat="'.htmlspecialchars($aPlace['lat']).'"';
@ -33,13 +32,6 @@
 			echo ' boundingbox="';
 			echo join(',', $aPlace['aBoundingBox']);
 			echo '"';
-
-			if ($bAsPoints && isset($aPlace['aPolyPoints']))
-			{
-				echo ' polygonpoints=\'';
-				echo json_encode($aPlace['aPolyPoints']);
-				echo '\'';
-			}
 		}

 		if (isset($aPlace['asgeojson']))
--- a/lib/template/details-error-html.php
+++ b/lib/template/details-error-html.php
@ -9,27 +9,18 @@

 <?php

-	function osm_link($aFeature)
+	function osmMapUrl($aFeature)
 	{
-		$sOSMType = ($aFeature['osm_type'] == 'N'?'node':($aFeature['osm_type'] == 'W'?'way':($aFeature['osm_type'] == 'R'?'relation':'')));
-		if ($sOSMType) {
-			return '<a href="http://www.openstreetmap.org/browse/'.$sOSMType.'/'.$aFeature['osm_id'].'">'.$sOSMType.' '.$aFeature['osm_id'].'</a>';
-		}
-		return '';
-	}
-
-	function osm_map_url($aFeature)
-	{
-		$sLon = $aFeature['error_x'];
-		$sLat = $aFeature['error_y'];
-
-		if (isset($sLat))
+		if (isset($sFeature['error_x']) && isset($sFeature['error_y']))
 		{
-			$sOSMType = ($aFeature['osm_type'] == 'N'?'node':($aFeature['osm_type'] == 'W'?'way':($aFeature['osm_type'] == 'R'?'relation':'')));
+			$sBaseUrl = '//www.openstreetmap.org/';
+			$sOSMType = formatOSMType($aFeature['osm_type'], false);
 			if ($sOSMType)
 			{
-				return "http://www.openstreetmap.org/?lat=".$sLat."&lon=".$sLon."&zoom=18&layers=M&".$sOSMType."=".$aFeature['osm_id'];
+				$sBaseUrl += $sOSMType.'/'.$aFeature['osm_id'];
 			}
+
+			return '<a href="'.$sBaseUrl.'?mlat='.$aFeature['error_y'].'&mlon='.$aFeature['error_x'].'">view on osm.org</a>';
 		}
 		return '';
 	}
@ -45,7 +36,7 @@
 			return "http://localhost:8111/load_and_zoom?left=".($sLon-$fWidth)."&right=".($sLon+$fWidth)."&top=".($sLat+$fWidth)."&bottom=".($sLat-$fWidth);
 		}

-		$sOSMType = ($aFeature['osm_type'] == 'N'?'node':($aFeature['osm_type'] == 'W'?'way':($aFeature['osm_type'] == 'R'?'relation':'')));
+		$sOSMType = formatOSMType($aFeature['osm_type'], false);
 		if ($sOSMType)
 		{
 			return 'http://localhost:8111/import?url=http://www.openstreetmap.org/api/0.6/'.$sOSMType.'/'.$aFeature['osm_id'].'/full';
@ -63,7 +54,7 @@

 		if (isset($sLat))
 		{
-			return "http://www.openstreetmap.org/edit?editor=potlatch2&bbox=".($sLon-$fWidth).",".($sLat-$fWidth).",".($sLon+$fWidth).",".($sLat+$fWidth);
+			return "//www.openstreetmap.org/edit?editor=potlatch2&bbox=".($sLon-$fWidth).",".($sLat-$fWidth).",".($sLon+$fWidth).",".($sLat+$fWidth);
 		}
 		return '';
 	}
@ -87,7 +78,7 @@
 					</div>

 					<div>
-						OSM: <span class="label"><?php echo osm_link($aPointDetails); ?><span>
+						OSM: <span class="label"><?php echo osmLink($aPointDetails); ?><span>
 					</div>


@ -95,9 +86,7 @@
 					<p>
 						<?php echo $aPointDetails['errormessage']?$aPointDetails['errormessage']:'unknown'; ?>
 					</p>
-					<?php if (osm_map_url($aPointDetails)) { ?>
-						<a href="<?php echo osm_map_url($aPointDetails); ?>">view on osm.org</a>
-					<?php } ?>
+					<?php echo osmMapUrl($aPointDetails); ?>

 					<h4>Edit</h4>
 					<ul>
@ -130,4 +119,4 @@

 	<?php include(CONST_BasePath.'/lib/template/includes/html-footer.php'); ?>
 	</body>
-</html>
+</html>
--- a/lib/template/details-html.php
+++ b/lib/template/details-html.php
@ -7,7 +7,6 @@
 </head>


-
 <?php

 	function headline($sTitle)
@ -20,30 +19,6 @@
 		echo "<tr class='all-columns'><td colspan='6'><h3>".$sTitle."</h3></td></tr>\n";
 	}

-	function osm_link($aFeature)
-	{
-		$sOSMType = ($aFeature['osm_type'] == 'N'?'node':($aFeature['osm_type'] == 'W'?'way':($aFeature['osm_type'] == 'R'?'relation':'')));
-		if ($sOSMType)
-		{
-			return '<a href="http://www.openstreetmap.org/browse/'.$sOSMType.'/'.$aFeature['osm_id'].'">'.$sOSMType.' '.$aFeature['osm_id'].'</a>';
-		}
-		return '';
-	}
-
-	function wikipedia_link($aFeature)
-	{
-		if ($aFeature['wikipedia'])
-		{
-			list($sWikipediaLanguage,$sWikipediaArticle) = explode(':',$aFeature['wikipedia']);
-			return '<a href="https://'.$sWikipediaLanguage.'.wikipedia.org/wiki/'.urlencode($sWikipediaArticle).'" target="_blank">'.$aFeature['wikipedia'].'</a>';
-		}
-		return '';
-	}
-
-	function nominatim_link($aFeature, $sTitle)
-	{
-		return '<a href="details.php?place_id='.$aFeature['place_id'].'">'.$sTitle.'</a>';
-	}

 	function format_distance($fDistance)
 	{
@ -92,10 +67,10 @@
 		echo '<tr class="' . ($bNotUsed?'notused':'') . '">'."\n";
 		echo '  <td class="name">'.(trim($aAddressLine['localname'])?$aAddressLine['localname']:'<span class="noname">No Name</span>')."</td>\n";
 		echo '  <td>' . $aAddressLine['class'].':'.$aAddressLine['type'] . "</td>\n";
-		echo '  <td>' . osm_link($aAddressLine) . "</td>\n";
+		echo '  <td>' . osmLink($aAddressLine) . "</td>\n";
 		echo '  <td>' . (isset($aAddressLine['admin_level']) ? $aAddressLine['admin_level'] : '') . "</td>\n";
 		echo '  <td>' . format_distance($aAddressLine['distance'])."</td>\n";
-		echo '  <td>' . nominatim_link($aAddressLine,'details &gt;') . "</td>\n";
+		echo '  <td>' . detailsLink($aAddressLine,'details &gt;') . "</td>\n";
 		echo "</tr>\n";
 	}

@ -143,10 +118,10 @@
 					}
 					kv('Coverage'        , ($aPointDetails['isarea']=='t'?'Polygon':'Point') );
 					kv('Centre Point'    , $aPointDetails['lat'].','.$aPointDetails['lon'] );
-					kv('OSM'             , osm_link($aPointDetails) );
+					kv('OSM'             , osmLink($aPointDetails) );
 					if ($aPointDetails['wikipedia'])
 					{
-						kv('Wikipedia Calculated' , wikipedia_link($aPointDetails) );
+						kv('Wikipedia Calculated' , wikipediaLink($aPointDetails) );
 					}

 					kv('Extra Tags'      , hash_to_subtable($aPointDetails['aExtraTags']) );
--- a/lib/template/search-batch-json.php
+++ b/lib/template/search-batch-json.php
@ -14,7 +14,7 @@
 						'place_id'=>$aPointDetails['place_id'],
 					);

-			$sOSMType = ($aPointDetails['osm_type'] == 'N'?'node':($aPointDetails['osm_type'] == 'W'?'way':($aPointDetails['osm_type'] == 'R'?'relation':'')));
+			$sOSMType = formatOSMType($aPointDetails['osm_type']);
 			if ($sOSMType)
 			{
 				$aPlace['osm_type'] = $sOSMType;
--- a/lib/template/search-json.php
+++ b/lib/template/search-json.php
@ -9,8 +9,7 @@
 				'licence'=>"Data © OpenStreetMap contributors, ODbL 1.0. http://www.openstreetmap.org/copyright",
 			);
        
-		$sOSMType = ($aPointDetails['osm_type'] == 'N'?'node':($aPointDetails['osm_type'] == 'W'?'way':($aPointDetails['osm_type'] == 'R'?
-					'relation':($aPointDetails['osm_type'] == 'T'?'tiger':($aPointDetails['osm_type'] == 'I'?'interpolation':'')))));
+		$sOSMType = formatOSMType($aPointDetails['osm_type']);
 		if ($sOSMType)
 		{
 			$aPlace['osm_type'] = $sOSMType;
--- a/lib/template/search-jsonv2.php
+++ b/lib/template/search-jsonv2.php
@ -7,7 +7,7 @@
 				'licence'=>"Data © OpenStreetMap contributors, ODbL 1.0. http://www.openstreetmap.org/copyright",
 			);

-		$sOSMType = ($aPointDetails['osm_type'] == 'N'?'node':($aPointDetails['osm_type'] == 'W'?'way':($aPointDetails['osm_type'] == 'R'?'relation':($aPointDetails['osm_type'] == 'T'?'tiger':($aPointDetails['osm_type'] == 'I'?'interpolation':'')))));
+		$sOSMType = formatOSMType($aPointDetails['osm_type']);
 		if ($sOSMType)
 		{
 			$aPlace['osm_type'] = $sOSMType;
--- a/lib/template/search-xml.php
+++ b/lib/template/search-xml.php
@ -25,8 +25,7 @@
 	foreach($aSearchResults as $iResNum => $aResult)
 	{
 		echo "<place place_id='".$aResult['place_id']."'";
-		$sOSMType = ($aResult['osm_type'] == 'N'?'node':($aResult['osm_type'] == 'W'?'way':($aResult['osm_type'] == 'R'?'relation':
-		($aResult['osm_type'] == 'T'?'tiger':($aResult['osm_type'] == 'I'?'interpolation':'')))));
+		$sOSMType = formatOSMType($aResult['osm_type']);
 		if ($sOSMType)
 		{
 			echo " osm_type='$sOSMType'";
--- a/lib/website.php
+++ b/lib/website.php
@ -0,0 +1,140 @@
+<?php
+
+/***************************************************************************
+ *
+ * Error handling functions
+ *
+ */
+	function chksql($oSql, $sMsg = "Database request failed")
+	{
+		if (!PEAR::isError($oSql)) return $oSql;
+
+		header('HTTP/1.0 500 Internal Server Error');
+		header('Content-type: text/html; charset=utf-8');
+
+		$sSqlError = $oSql->getMessage();
+
+		echo <<<INTERNALFAIL
+	<html>
+	  <head><title>Internal Server Error</title></head>
+	  <body>
+		<h1>Internal Server Error</h1>
+		<p>Nominatim has encountered an internal error while accessing the database.
+		   This may happen because the database is broken or because of a bug in
+		   the software. If you think it is a bug, feel free to report
+		   it over on <a href="https://github.com/twain47/Nominatim/issues">
+		   Github</a>. Please include the URL that caused the problem and the
+		   complete error details below.</p>
+		<p><b>Message:</b> $sMsg</p>
+		<p><b>SQL Error:</b> $sSqlError</p>
+		<p><b>Details:</b> <pre>
+INTERNALFAIL;
+
+		if (CONST_Debug)
+		{
+			var_dump($oSql);
+		}
+		else
+		{
+			echo "<pre>\n".$oSql->getUserInfo()."</pre>";
+		}
+
+		echo "</pre></p></body></html>";
+		exit;
+	}
+
+	function failInternalError($sError, $sSQL = false, $vDumpVar = false)
+	{
+		header('HTTP/1.0 500 Internal Server Error');
+		header('Content-type: text/html; charset=utf-8');
+		echo "<html><body><h1>Internal Server Error</h1>";
+		echo '<p>Nominatim has encountered an internal error while processing your request. This is most likely because of a bug in the software.</p>';
+		echo "<p><b>Details:</b> ".$sError,"</p>";
+		echo '<p>Feel free to file an issue on <a href="https://github.com/twain47/Nominatim/issues">Github</a>. Please include the error message above and the URL you used.</p>';
+		if (CONST_Debug)
+		{
+			echo "<hr><h2>Debugging Information</h2><br>";
+			if ($sSQL)
+			{
+				echo "<h3>SQL query</h3><code>".$sSQL."</code>";
+			}
+			if ($vDumpVar)
+			{
+				echo "<h3>Result</h3> <code>";
+				var_dump($vDumpVar);
+				echo "</code>";
+			}
+		}
+		echo "\n</body></html>\n";
+		exit;
+	}
+
+
+	function userError($sError)
+	{
+		header('HTTP/1.0 400 Bad Request');
+		header('Content-type: text/html; charset=utf-8');
+		echo "<html><body><h1>Bad Request</h1>";
+		echo '<p>Nominatim has encountered an error with your request.</p>';
+		echo "<p><b>Details:</b> ".$sError."</p>";
+		echo '<p>If you feel this error is incorrect feel file an issue on <a href="https://github.com/twain47/Nominatim/issues">Github</a>. Please include the error message above and the URL you used.</p>';
+		echo "\n</body></html>\n";
+		exit;
+	}
+
+
+/***************************************************************************
+ *
+ * Functions for parsing URL parameters
+ *
+ */
+
+	function getParamBool($sName, $bDefault=false)
+	{
+		if (!isset($_GET[$sName]) || strlen($_GET[$sName]) == 0) return $bDefault;
+
+		return (bool) $_GET[$sName];
+	}
+
+	function getParamInt($sName, $bDefault=false)
+	{
+		if (!isset($_GET[$sName]) || strlen($_GET[$sName]) == 0) return $bDefault;
+
+		if (!preg_match('/^[+-]?[0-9]+$/', $_GET[$sName]))
+		{
+			userError("Integer number expected for parameter '$sName'");
+		}
+
+		return (int) $_GET[$sName];
+	}
+
+	function getParamFloat($sName, $bDefault=false)
+	{
+		if (!isset($_GET[$sName]) || strlen($_GET[$sName]) == 0) return $bDefault;
+
+		if (!preg_match('/^[+-]?[0-9]*\.?[0-9]+$/', $_GET[$sName]))
+		{
+			userError("Floating-point number expected for parameter '$sName'");
+		}
+
+		return (float) $_GET[$sName];
+	}
+
+	function getParamString($sName, $bDefault=false)
+	{
+		if (!isset($_GET[$sName]) || strlen($_GET[$sName]) == 0) return $bDefault;
+
+		return $_GET[$sName];
+	}
+
+	function getParamSet($sName, $aValues, $sDefault=false)
+	{
+		if (!isset($_GET[$sName]) || strlen($_GET[$sName]) == 0) return $sDefault;
+
+		if (!in_array($_GET[$sName], $aValues))
+		{
+			userError("Parameter '$sName' must be one of: ".join(', ', $aValues));
+		}
+
+		return $_GET[$sName];
+	}
--- a/tests/features/api/reverse_simple.feature
+++ b/tests/features/api/reverse_simple.feature
@ -99,35 +99,35 @@ Feature: Simple Reverse Tests
          | lat
          | 51.51
        When sending an API call reverse
-        Then exactly 0 results are returned
+        Then a HTTP 400 is returned

    Scenario: Missing lat parameter
        Given the request parameters
          | lon
          | -79.39114
        When sending an API call reverse
-        Then exactly 0 results are returned
+        Then a HTTP 400 is returned

    Scenario: Missing osm_id parameter
        Given the request parameters
          | osm_type
          | N
        When sending an API call reverse
-        Then exactly 0 results are returned
+        Then a HTTP 400 is returned

    Scenario: Missing osm_type parameter
        Given the request parameters
          | osm_id
          | 3498564
        When sending an API call reverse
-        Then exactly 0 results are returned
+        Then a HTTP 400 is returned

    Scenario Outline: Bad format for lat or lon
        Given the request parameters
          | lat   | lon   |
          | <lat> | <lon> |
        When sending an API call reverse
-        Then exactly 0 results are returned
+        Then a HTTP 400 is returned

    Examples:
     | lat      | lon
@ -137,4 +137,4 @@ Feature: Simple Reverse Tests
     | 48.966.0 | 8.4482
     | 48.966   | 8.448.2
     | Nan      | 8.448
-     | 48.966   | Nan
+     | 48.966   | Nan
--- a/tests/features/api/search_params.feature
+++ b/tests/features/api/search_params.feature
@ -187,7 +187,6 @@ Feature: Search queries
        | 0.0
        | 0.5
        | 999
-        | nan

    Scenario Outline: Search with polygon threshold (xml)
        Given the request parameters
@ -203,7 +202,14 @@ Feature: Search queries
        | 0.0
        | 0.5
        | 999
-        | nan
+
+    Scenario Outline: Search with invalid polygon threshold (xml)
+        Given the request parameters
+          | polygon_geojson | polygon_threshold
+          | 1               | <th>
+        When sending xml search query "switzerland"
+        Then a HTTP 400 is returned
+

    Scenario Outline: Search with extratags
        Given the request parameters
--- a/tests/features/api/search_simple.feature
+++ b/tests/features/api/search_simple.feature
@ -61,7 +61,7 @@ Feature: Simple Tests
          | format
          | fd$#
        When sending search query "Berlin"
-        Then the result is valid html
+        Then a HTTP 400 is returned

    Scenario Outline: Simple Searches
        When sending search query "<query>"
--- a/website/deletable.php
+++ b/website/deletable.php
@ -2,6 +2,7 @@
 	require_once(dirname(dirname(__FILE__)).'/settings/settings.php');
 	require_once(CONST_BasePath.'/lib/init-website.php');
 	require_once(CONST_BasePath.'/lib/log.php');
+	require_once(CONST_BasePath.'/lib/output.php');

 	$sOutputFormat = 'html';
 	ini_set('memory_limit', '200M');
@ -9,13 +10,14 @@
 	$oDB =& getDB();

 	$sSQL = "select placex.place_id, calculated_country_code as country_code, name->'name' as name, i.* from placex, import_polygon_delete i where placex.osm_id = i.osm_id and placex.osm_type = i.osm_type and placex.class = i.class and placex.type = i.type";
-	$aPolygons = $oDB->getAll($sSQL);
-	if (PEAR::isError($aPolygons))
-	{
-		failInternalError("Could not get list of deleted OSM elements.", $sSQL, $aPolygons);
-	}
+	$aPolygons = chksql($oDB->getAll($sSQL),
+	                    "Could not get list of deleted OSM elements.");

-//var_dump($aPolygons);
+	if (CONST_DEBUG)
+	{
+		var_dump($aPolygons);
+		exit;
+	}
 ?>
 <!DOCTYPE html>
 <html>
@ -66,6 +68,7 @@ table td {

 <table>
 <?php
+	if (!$aPolygons) exit;
 	echo "<tr>";
 //var_dump($aPolygons[0]);
 	foreach($aPolygons[0] as $sCol => $sVal)
@ -81,11 +84,10 @@ table td {
 			switch($sCol)
 			{
 				case 'osm_id':
-					$sOSMType = ($aRow['osm_type'] == 'N'?'node':($aRow['osm_type'] == 'W'?'way':($aRow['osm_type'] == 'R'?'relation':'')));
-					echo '<td><a href="http://www.openstreetmap.org/browse/'.$sOSMType.'/'.$sVal.'" target="_new">'.$sVal.'</a></td>';
+					echo '<td>'.osmLink($aRow).'</td>';
 					break;
 				case 'place_id':
-					echo '<td><a href="'.CONST_Website_BaseURL.'details?place_id='.$sVal.'">'.$sVal.'</a></td>';
+					echo '<td>'.detailsLink($aRow).'</td>';
 					break;
 				default:
 					echo "<td>".($sVal?$sVal:'&nbsp;')."</td>";
--- a/website/details.php
+++ b/website/details.php
@ -4,6 +4,7 @@
 	require_once(dirname(dirname(__FILE__)).'/settings/settings.php');
 	require_once(CONST_BasePath.'/lib/init-website.php');
 	require_once(CONST_BasePath.'/lib/log.php');
+	require_once(CONST_BasePath.'/lib/output.php');

 	$sOutputFormat = 'html';
 	/*
@ -21,15 +22,18 @@
 	$aLangPrefOrder = getPreferredLanguages();
 	$sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$aLangPrefOrder))."]";

-	if (isset($_GET['osmtype']) && isset($_GET['osmid']) && (int)$_GET['osmid'] && ($_GET['osmtype'] == 'N' || $_GET['osmtype'] == 'W' || $_GET['osmtype'] == 'R'))
+	$sPlaceId = getParamString('place_id');
+	$sOsmType = getParamSet('osmtype', array('N', 'W', 'R'));
+	$iOsmId = getParamInt('osmid', -1);
+	if ($sOsmType && $iOsmId > 0)
 	{
-		$_GET['place_id'] = $oDB->getOne("select place_id from placex where osm_type = '".$_GET['osmtype']."' and osm_id = ".(int)$_GET['osmid']." order by type = 'postcode' asc");
+		$sPlaceId = chksql($oDB->getOne("select place_id from placex where osm_type = '".$sOsmType."' and osm_id = ".$iOsmId." order by type = 'postcode' asc"));

 		// Be nice about our error messages for broken geometry

-		if (!$_GET['place_id'])
+		if (!$sPlaceId)
 		{
-			$aPointDetails = $oDB->getRow("select osm_type, osm_id, errormessage, class, type, get_name_by_language(name,$sLanguagePrefArraySQL) as localname, ST_AsText(prevgeometry) as prevgeom, ST_AsText(newgeometry) as newgeom from import_polygon_error where osm_type = '".$_GET['osmtype']."' and osm_id = ".(int)$_GET['osmid']." order by updated desc limit 1");
+			$aPointDetails = chksql($oDB->getRow("select osm_type, osm_id, errormessage, class, type, get_name_by_language(name,$sLanguagePrefArraySQL) as localname, ST_AsText(prevgeometry) as prevgeom, ST_AsText(newgeometry) as newgeom from import_polygon_error where osm_type = '".$sOsmType."' and osm_id = ".$iOsmId." order by updated desc limit 1"));
 			if (!PEAR::isError($aPointDetails) && $aPointDetails) {
 				if (preg_match('/\[(-?\d+\.\d+) (-?\d+\.\d+)\]/', $aPointDetails['errormessage'], $aMatches))
 				{
@ -48,32 +52,24 @@
 	}


-	if (!isset($_GET['place_id']))
-	{
-		echo "Please select a place id";
-		exit;
-	}
+	if (!$sPlaceId) userError("Please select a place id");

-	$iPlaceID = (int)$_GET['place_id'];
+	$iPlaceID = (int)$sPlaceId;

 	if (CONST_Use_US_Tiger_Data)
 	{
-		$iParentPlaceID = $oDB->getOne('select parent_place_id from location_property_tiger where place_id = '.$iPlaceID);
+		$iParentPlaceID = chksql($oDB->getOne('select parent_place_id from location_property_tiger where place_id = '.$iPlaceID));
 		if ($iParentPlaceID) $iPlaceID = $iParentPlaceID;
 	}

 	if (CONST_Use_Aux_Location_data)
 	{
-		$iParentPlaceID = $oDB->getOne('select parent_place_id from location_property_aux where place_id = '.$iPlaceID);
+		$iParentPlaceID = chksql($oDB->getOne('select parent_place_id from location_property_aux where place_id = '.$iPlaceID));
 		if ($iParentPlaceID) $iPlaceID = $iParentPlaceID;
 	}

 	$hLog = logStart($oDB, 'details', $_SERVER['QUERY_STRING'], $aLangPrefOrder);

-	// Make sure the point we are reporting on is fully indexed
-	//$sSQL = "UPDATE placex set indexed = true where indexed = false and place_id = $iPlaceID";
-	//$oDB->query($sSQL);
-
 	// Get the details for this point
 	$sSQL = "select place_id, osm_type, osm_id, class, type, name, admin_level, housenumber, street, isin, postcode, calculated_country_code as country_code, importance, wikipedia,";
 	$sSQL .= " to_char(indexed_date, 'YYYY-MM-DD HH24:MI') as indexed_date, parent_place_id, rank_address, rank_search, get_searchrank_label(rank_search) as rank_search_label, get_name_by_language(name,$sLanguagePrefArraySQL) as localname, ";
@ -83,11 +79,8 @@
 	$sSQL .= " case when importance = 0 OR importance IS NULL then 0.75-(rank_search::float/40) else importance end as calculated_importance, ";
 	$sSQL .= " ST_AsText(CASE WHEN ST_NPoints(geometry) > 5000 THEN ST_SimplifyPreserveTopology(geometry, 0.0001) ELSE geometry END) as outlinestring";
 	$sSQL .= " from placex where place_id = $iPlaceID";
-	$aPointDetails = $oDB->getRow($sSQL);
-	if (PEAR::IsError($aPointDetails))
-	{
-		failInternalError("Could not get details of place object.", $sSQL, $aPointDetails);
-	}
+	$aPointDetails = chksql($oDB->getRow($sSQL),
+	                        "Could not get details of place object.");
 	$aPointDetails['localname'] = $aPointDetails['localname']?$aPointDetails['localname']:$aPointDetails['housenumber'];

 	$aClassType = getClassTypesWithImportance();
@ -139,7 +132,7 @@

 	$aPlaceSearchNameKeywords = false;
 	$aPlaceSearchAddressKeywords = false;
-	if (isset($_GET['keywords']) && $_GET['keywords'])
+	if (getParamBool('keywords'))
 	{
 		$sSQL = "select * from search_name where place_id = $iPlaceID";
 		$aPlaceSearchName = $oDB->getRow($sSQL);
@ -169,10 +162,9 @@

 	if ($sOutputFormat=='html')
 	{
-		$sDataDate = $oDB->getOne("select TO_CHAR(lastimportdate - '2 minutes'::interval,'YYYY/MM/DD HH24:MI')||' GMT' from import_status limit 1");
+		$sDataDate = chksql($oDB->getOne("select TO_CHAR(lastimportdate - '2 minutes'::interval,'YYYY/MM/DD HH24:MI')||' GMT' from import_status limit 1"));
 		$sTileURL = CONST_Map_Tile_URL;
 		$sTileAttribution = CONST_Map_Tile_Attribution;
 	}

-	
 	include(CONST_BasePath.'/lib/template/details-'.$sOutputFormat.'.php');
--- a/website/hierarchy.php
+++ b/website/hierarchy.php
@ -5,29 +5,28 @@
 	require_once(CONST_BasePath.'/lib/init-website.php');
 	require_once(CONST_BasePath.'/lib/log.php');
 	require_once(CONST_BasePath.'/lib/PlaceLookup.php');
-
-	$sOutputFormat = 'html';
-	if (isset($_GET['format']) && ($_GET['format'] == 'html' || $_GET['format'] == 'xml' || $_GET['format'] == 'json' ||  $_GET['format'] == 'jsonv2'))
-	{
-		$sOutputFormat = $_GET['format'];
-	}
-
+	require_once(CONST_BasePath.'/lib/output.php');
 	ini_set('memory_limit', '200M');

 	$oDB =& getDB();

+	$sOutputFormat = getParamSet('format', array('html', 'json'), 'html');
+
 	$aLangPrefOrder = getPreferredLanguages();
 	$sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted",$aLangPrefOrder))."]";

-	if (isset($_GET['osmtype']) && isset($_GET['osmid']) && (int)$_GET['osmid'] && ($_GET['osmtype'] == 'N' || $_GET['osmtype'] == 'W' || $_GET['osmtype'] == 'R'))
+	$sPlaceId = getParamString('place_id');
+	$sOsmType = getParamSet('osmtype', array('N', 'W', 'R'));
+	$iOsmId = getParamInt('osmid', -1);
+	if ($sOsmType && $iOsmId > 0)
 	{
-		$_GET['place_id'] = $oDB->getOne("select place_id from placex where osm_type = '".$_GET['osmtype']."' and osm_id = ".(int)$_GET['osmid']." order by type = 'postcode' asc");
+		$sPlaceId = chksql($oDB->getOne("select place_id from placex where osm_type = '".$sOsmType."' and osm_id = ".$iOsmId." order by type = 'postcode' asc"));

 		// Be nice about our error messages for broken geometry
-		if (!$_GET['place_id'])
+		if (!$sPlaceId)
 		{
-			$aPointDetails = $oDB->getRow("select osm_type, osm_id, errormessage, class, type, get_name_by_language(name,$sLanguagePrefArraySQL) as localname, ST_AsText(prevgeometry) as prevgeom, ST_AsText(newgeometry) as newgeom from import_polygon_error where osm_type = '".$_GET['osmtype']."' and osm_id = ".(int)$_GET['osmid']." order by updated desc limit 1");
-			if (!PEAR::isError($aPointDetails) && $aPointDetails) {
+			$aPointDetails = chksql($oDB->getRow("select osm_type, osm_id, errormessage, class, type, get_name_by_language(name,$sLanguagePrefArraySQL) as localname, ST_AsText(prevgeometry) as prevgeom, ST_AsText(newgeometry) as newgeom from import_polygon_error where osm_type = '".$sOsmType."' and osm_id = ".$iOsmId." order by updated desc limit 1"));
+			if ($aPointDetails) {
 				if (preg_match('/\[(-?\d+\.\d+) (-?\d+\.\d+)\]/', $aPointDetails['errormessage'], $aMatches))
 				{
 					$aPointDetails['error_x'] = $aMatches[1];
@ -39,23 +38,19 @@
 		}
 	}

-	if (!isset($_GET['place_id']))
-	{
-		echo "Please select a place id";
-		exit;
-	}
+	if (!$sPlaceId) userError("Please select a place id");

-	$iPlaceID = (int)$_GET['place_id'];
+	$iPlaceID = (int)$sPlaceId;

 	if (CONST_Use_US_Tiger_Data)
 	{
-		$iParentPlaceID = $oDB->getOne('select parent_place_id from location_property_tiger where place_id = '.$iPlaceID);
+		$iParentPlaceID = chksql($oDB->getOne('select parent_place_id from location_property_tiger where place_id = '.$iPlaceID));
 		if ($iParentPlaceID) $iPlaceID = $iParentPlaceID;
 	}

 	if (CONST_Use_Aux_Location_data)
 	{
-		$iParentPlaceID = $oDB->getOne('select parent_place_id from location_property_aux where place_id = '.$iPlaceID);
+		$iParentPlaceID = chksql($oDB->getOne('select parent_place_id from location_property_aux where place_id = '.$iPlaceID));
 		if ($iParentPlaceID) $iPlaceID = $iParentPlaceID;
 	}

@ -66,42 +61,43 @@

 	$aPlaceAddress = array_reverse($oPlaceLookup->getAddressDetails());

-	if (!sizeof($aPlaceAddress))
-	{
-		echo "Unknown place id.";
-		exit;
-	}
+	if (!sizeof($aPlaceAddress)) userError("Unknown place id.");

 	$aBreadcrums = array();
 	foreach($aPlaceAddress as $i => $aPlace)
 	{
 		if (!$aPlace['place_id']) continue;
-		$aBreadcrums[] = array('placeId'=>$aPlace['place_id'], 'osmType'=>$aPlace['osm_type'], 'osmId'=>$aPlace['osm_id'], 'localName'=>$aPlace['localname']);
-		$sPlaceUrl = 'hierarchy.php?place_id='.$aPlace['place_id'];
-		$sOSMType = ($aPlace['osm_type'] == 'N'?'node':($aPlace['osm_type'] == 'W'?'way':($aPlace['osm_type'] == 'R'?'relation':'')));
-				$sOSMUrl = 'http://www.openstreetmap.org/browse/'.$sOSMType.'/'.$aPlace['osm_id'];
-		if ($sOutputFormat == 'html') if ($i) echo " > ";
-		if ($sOutputFormat == 'html') echo '<a href="'.$sPlaceUrl.'">'.$aPlace['localname'].'</a> (<a href="'.$sOSMUrl.'">osm</a>)';
+		$aBreadcrums[] = array('placeId'   => $aPlace['place_id'],
+		                       'osmType'   => $aPlace['osm_type'],
+		                       'osmId'     => $aPlace['osm_id'],
+		                       'localName' => $aPlace['localname']);
+
+		if ($sOutputFormat == 'html')
+		{
+			$sPlaceUrl = 'hierarchy.php?place_id='.$aPlace['place_id'];
+			if ($i) echo " &gt; ";
+			echo '<a href="'.$sPlaceUrl.'">'.$aPlace['localname'].'</a> ('.osmLink($aPlace).')';
+		}
 	}

-	$aDetails = array();
-	$aDetails['breadcrumbs'] = $aBreadcrums;

 	if ($sOutputFormat == 'json')
 	{
 		header("content-type: application/json; charset=UTF-8");
+		$aDetails = array();
+		$aDetails['breadcrumbs'] = $aBreadcrums;
 		javascript_renderData($aDetails);
 		exit;
 	}

-	$aRelatedPlaceIDs = $oDB->getCol($sSQL = "select place_id from placex where linked_place_id = $iPlaceID or place_id = $iPlaceID");
+	$aRelatedPlaceIDs = chksql($oDB->getCol($sSQL = "select place_id from placex where linked_place_id = $iPlaceID or place_id = $iPlaceID"));

 	$sSQL = "select obj.place_id, osm_type, osm_id, class, type, housenumber, admin_level, rank_address, ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon') as isarea,  st_area(geometry) as area, ";
 	$sSQL .= " get_name_by_language(name,$sLanguagePrefArraySQL) as localname, length(name::text) as namelength ";
 	$sSQL .= " from (select placex.place_id, osm_type, osm_id, class, type, housenumber, admin_level, rank_address, rank_search, geometry, name from placex ";
 	$sSQL .= " where parent_place_id in (".join(',',$aRelatedPlaceIDs).") and name is not null order by rank_address asc,rank_search asc limit 500) as obj";
 	$sSQL .= " order by rank_address asc,rank_search asc,localname,class, type,housenumber";
-	$aParentOfLines = $oDB->getAll($sSQL);
+	$aParentOfLines = chksql($oDB->getAll($sSQL));

 	if (sizeof($aParentOfLines))
 	{
@ -124,28 +120,29 @@

 			if (!isset($aGroupedAddressLines[$aAddressLine['label']])) $aGroupedAddressLines[$aAddressLine['label']] = array();
 				$aGroupedAddressLines[$aAddressLine['label']][] = $aAddressLine;
-			}
-			foreach($aGroupedAddressLines as $sGroupHeading => $aParentOfLines)
-			{
-				echo "<h3>$sGroupHeading</h3>";
-				foreach($aParentOfLines as $aAddressLine)
-				{
-					$aAddressLine['localname'] = $aAddressLine['localname']?$aAddressLine['localname']:$aAddressLine['housenumber'];
-					$sOSMType = ($aAddressLine['osm_type'] == 'N'?'node':($aAddressLine['osm_type'] == 'W'?'way':($aAddressLine['osm_type'] == 'R'?'relation':'')));
-
-					echo '<div class="line">';
-					echo '<span class="name">'.(trim($aAddressLine['localname'])?$aAddressLine['localname']:'<span class="noname">No Name</span>').'</span>';
-					echo ' (';
-					echo '<span class="area">'.($aAddressLine['isarea']=='t'?'Polygon':'Point').'</span>';
-					if ($sOSMType) echo ', <span class="osm"><span class="label"></span>'.$sOSMType.' <a href="http://www.openstreetmap.org/browse/'.$sOSMType.'/'.$aAddressLine['osm_id'].'">'.$aAddressLine['osm_id'].'</a></span>';
-					echo ', <a href="hierarchy.php?place_id='.$aAddressLine['place_id'].'">GOTO</a>';
-					echo ', '.$aAddressLine['area'];
-					echo ')';
-					echo '</div>';
-				}
-			}
-			if (sizeof($aParentOfLines) >= 500) {
-				echo '<p>There are more child objects which are not shown.</p>';
-			}
-			echo '</div>';
 		}
+
+		foreach($aGroupedAddressLines as $sGroupHeading => $aParentOfLines)
+		{
+			echo "<h3>$sGroupHeading</h3>";
+			foreach($aParentOfLines as $aAddressLine)
+			{
+				$aAddressLine['localname'] = $aAddressLine['localname']?$aAddressLine['localname']:$aAddressLine['housenumber'];
+				$sOSMType = formatOSMType($aAddressLine['osm_type'], false);
+
+				echo '<div class="line">';
+				echo '<span class="name">'.(trim($aAddressLine['localname'])?$aAddressLine['localname']:'<span class="noname">No Name</span>').'</span>';
+				echo ' (';
+				echo '<span class="area">'.($aAddressLine['isarea']=='t'?'Polygon':'Point').'</span>';
+				if ($sOSMType) echo ', <span class="osm"><span class="label"></span>'.$sOSMType.' '.osmLink($aAddressLine).'</span>';
+				echo ', <a href="hierarchy.php?place_id='.$aAddressLine['place_id'].'">GOTO</a>';
+				echo ', '.$aAddressLine['area'];
+				echo ')';
+				echo '</div>';
+			}
+		}
+		if (sizeof($aParentOfLines) >= 500) {
+			echo '<p>There are more child objects which are not shown.</p>';
+		}
+		echo '</div>';
+	}
--- a/website/lookup.php
+++ b/website/lookup.php
@ -5,6 +5,7 @@
 	require_once(CONST_BasePath.'/lib/init-website.php');
 	require_once(CONST_BasePath.'/lib/log.php');
 	require_once(CONST_BasePath.'/lib/PlaceLookup.php');
+	require_once(CONST_BasePath.'/lib/output.php');

 	if (strpos(CONST_BulkUserIPs, ','.$_SERVER["REMOTE_ADDR"].',') !== false)
 	{
@ -22,11 +23,7 @@
 	ini_set('memory_limit', '200M');

 	// Format for output
-	$sOutputFormat = 'xml';
-	if (isset($_GET['format']) && ($_GET['format'] == 'xml' || $_GET['format'] == 'json'))
-	{
-		$sOutputFormat = $_GET['format'];
-	}
+	$sOutputFormat = getParamSet('format', array('xml', 'json'), 'xml');

 	// Preferred language
 	$aLangPrefOrder = getPreferredLanguages();
@ -35,45 +32,42 @@

 	$aSearchResults = array();
 	$aCleanedQueryParts = array();
-	if (isset($_GET['osm_ids']))
+
+	$oPlaceLookup = new PlaceLookup($oDB);
+	$oPlaceLookup->setLanguagePreference($aLangPrefOrder);
+	$oPlaceLookup->setIncludeAddressDetails(getParamBool('addressdetails', true));
+	$oPlaceLookup->setIncludeExtraTags(getParamBool('extratags', false));
+	$oPlaceLookup->setIncludeNameDetails(getParamBool('namedetails', false));
+
+	$aOsmIds = explode(',', getParamString('osm_ids', ''));
+
+	if (count($aOsmIds) > CONST_Places_Max_ID_count)
 	{
-		$oPlaceLookup = new PlaceLookup($oDB);
-		$oPlaceLookup->setLanguagePreference($aLangPrefOrder);
-		$oPlaceLookup->setIncludeAddressDetails(getParamBool('addressdetails', true));
-		$oPlaceLookup->setIncludeExtraTags(getParamBool('extratags', false));
-		$oPlaceLookup->setIncludeNameDetails(getParamBool('namedetails', false));
+		userError('Bulk User: Only ' . CONST_Places_Max_ID_count . " ids are allowed in one request.");
+	}
+
+	foreach ($aOsmIds AS $sItem)
+	{
+		// Skip empty sItem
+		if (empty($sItem)) continue;
 		
-		$aOsmIds = explode(',', $_GET['osm_ids']);
-		
-		if ( count($aOsmIds) > CONST_Places_Max_ID_count ) 
+		$sType = $sItem[0];
+		$iId = (int) substr($sItem, 1);
+		if ( $iId > 0 && ($sType == 'N' || $sType == 'W' || $sType == 'R') )
 		{
-			userError('Bulk User: Only ' . CONST_Places_Max_ID_count . " ids are allowed in one request.");
-			exit;
-		}
-		
-		foreach ($aOsmIds AS $sItem) 
-		{
-			// Skip empty sItem
-			if (empty($sItem)) continue;
-			
-			$sType = $sItem[0];
-			$iId = (int) substr($sItem, 1);
-			if ( $iId > 0 && ($sType == 'N' || $sType == 'W' || $sType == 'R') )
-			{
-				$aCleanedQueryParts[] = $sType . $iId;
-				$oPlaceLookup->setOSMID($sType, $iId);
-				$oPlace = $oPlaceLookup->lookup();
-				if ($oPlace){
-					// we want to use the search-* output templates, so we need to fill
-					// $aSearchResults and slightly change the (reverse search) oPlace
-					// key names
-					$oResult = $oPlace;
-					unset($oResult['aAddress']);
-					if (isset($oPlace['aAddress'])) $oResult['address'] = $oPlace['aAddress'];
-					unset($oResult['langaddress']);
-					$oResult['name'] = $oPlace['langaddress'];
-					$aSearchResults[] = $oResult;
-				}
+			$aCleanedQueryParts[] = $sType . $iId;
+			$oPlaceLookup->setOSMID($sType, $iId);
+			$oPlace = $oPlaceLookup->lookup();
+			if ($oPlace){
+				// we want to use the search-* output templates, so we need to fill
+				// $aSearchResults and slightly change the (reverse search) oPlace
+				// key names
+				$oResult = $oPlace;
+				unset($oResult['aAddress']);
+				if (isset($oPlace['aAddress'])) $oResult['address'] = $oPlace['aAddress'];
+				unset($oResult['langaddress']);
+				$oResult['name'] = $oPlace['langaddress'];
+				$aSearchResults[] = $oResult;
 			}
 		}
 	}
--- a/website/polygons.php
+++ b/website/polygons.php
@ -2,18 +2,17 @@
 	require_once(dirname(dirname(__FILE__)).'/settings/settings.php');
 	require_once(CONST_BasePath.'/lib/init-website.php');
 	require_once(CONST_BasePath.'/lib/log.php');
-
-	$sOutputFormat = 'html';
+	require_once(CONST_BasePath.'/lib/output.php');
 	ini_set('memory_limit', '200M');

 	$oDB =& getDB();
-	if (!isset($_GET['days'])) $_GET['days'] = 1;
-	$bReduced = false;
-	if (isset($_GET['reduced'])) $bReduced = true;
-	$sClass = false;
-	if (isset($_GET['class'])) $sClass = $_GET['class'];

-	$iTotalBroken = (int) $oDB->getOne('select count(*) from import_polygon_error');
+	$sOutputFormat = 'html';
+	$iDays = getParamInt('days', 1);
+	$bReduced = getParamBool('reduced', false);
+	$sClass = getParamString('class', false);
+
+	$iTotalBroken = (int) chksql($oDB->getOne('select count(*) from import_polygon_error'));

 	$aPolygons = array();
 	while($iTotalBroken && !sizeof($aPolygons))
@ -21,23 +20,20 @@
 		$sSQL = 'select osm_type as "type",osm_id as "id",class as "key",type as "value",name->\'name\' as "name",';
 		$sSQL .= 'country_code as "country",errormessage as "error message",updated';
 		$sSQL .= " from import_polygon_error";
-		if ($_GET['days'])
-		{
-			$sSQL .= " where updated > 'now'::timestamp - '".(int)$_GET['days']." day'::interval";
-			$_GET['days']++;
-		}
-		if ($bReduced)
-		{
-			$sSQL .= " and errormessage like 'Area reduced%'";
-		}
-		if ($sClass)
-		{
-			$sSQL .= " and class = '".pg_escape_string($sClass)."'";
-		}
+		$sSQL .= " where updated > 'now'::timestamp - '".$iDays." day'::interval";
+		$iDays++;
+
+		if ($bReduced) $sSQL .= " and errormessage like 'Area reduced%'";
+		if ($sClass) $sSQL .= " and class = '".pg_escape_string($sClass)."'";
 		$sSQL .= " order by updated desc limit 1000";
-		$aPolygons = $oDB->getAll($sSQL);
+		$aPolygons = chksql($oDB->getAll($sSQL));
+	}
+
+	if (CONST_Debug)
+	{
+		var_dump($aPolygons);
+		exit;
 	}
-//var_dump($aPolygons);
 ?>
 <!DOCTYPE html>
 <html>
@ -87,6 +83,7 @@ table td {
 <?php

 	echo "<p>Total number of broken polygons: $iTotalBroken</p>";
+	if (!$aPolygons) exit;
 	echo "<table>";
 	echo "<tr>";
 //var_dump($aPolygons[0]);
@ -120,8 +117,7 @@ table td {
 				}
 				break;
 			case 'id':
-				$sOSMType = ($aRow['type'] == 'N'?'node':($aRow['type'] == 'W'?'way':($aRow['type'] == 'R'?'relation':'')));
-				echo '<td><a href="http://www.openstreetmap.org/browse/'.$sOSMType.'/'.$aRow['id'].'" target="_new">'.$aRow['id'].'</a></td>';
+				echo '<td>'.osmLink($aRow).'</td>';
 				break;
 			default:
 				echo "<td>".($sVal?$sVal:'&nbsp;')."</td>";
@ -140,10 +136,6 @@ table td {
 		echo "</tr>";
 	}
 	echo "</table>";
-
-
-
-//	include(CONST_BasePath.'/lib/template/details-'.$sOutputFormat.'.php');
 ?>
 </body>
 </html>
--- a/website/reverse.php
+++ b/website/reverse.php
@ -6,6 +6,7 @@
 	require_once(CONST_BasePath.'/lib/log.php');
 	require_once(CONST_BasePath.'/lib/PlaceLookup.php');
 	require_once(CONST_BasePath.'/lib/ReverseGeocode.php');
+	require_once(CONST_BasePath.'/lib/output.php');

 	if (strpos(CONST_BulkUserIPs, ','.$_SERVER["REMOTE_ADDR"].',') !== false)
 	{
@ -20,17 +21,12 @@
 	}


-	$bAsPoints = false;
-	$bAsGeoJSON = (boolean)isset($_GET['polygon_geojson']) && $_GET['polygon_geojson'];
-	$bAsKML = (boolean)isset($_GET['polygon_kml']) && $_GET['polygon_kml'];
-	$bAsSVG = (boolean)isset($_GET['polygon_svg']) && $_GET['polygon_svg'];
-	$bAsText = (boolean)isset($_GET['polygon_text']) && $_GET['polygon_text'];
-	if ( ( ($bAsGeoJSON?1:0)
-			 + ($bAsKML?1:0)
-			 + ($bAsSVG?1:0)
-			 + ($bAsText?1:0)
-			 + ($bAsPoints?1:0)
-			 ) > CONST_PolygonOutput_MaximumTypes)
+	$bAsGeoJSON = getParamBool('polygon_geojson');
+	$bAsKML = getParamBool('polygon_kml');
+	$bAsSVG = getParamBool('polygon_svg');
+	$bAsText = getParamBool('polygon_text');
+	if ((($bAsGeoJSON?1:0) + ($bAsKML?1:0) + ($bAsSVG?1:0)
+		+ ($bAsText?1:0)) > CONST_PolygonOutput_MaximumTypes)
 	{
 		if (CONST_PolygonOutput_MaximumTypes)
 		{
@ -45,19 +41,14 @@


 	// Polygon simplification threshold (optional)
-	$fThreshold = 0.0;
-	if (isset($_GET['polygon_threshold'])) $fThreshold = (float)$_GET['polygon_threshold'];
+	$fThreshold = getParamFloat('polygon_threshold', 0.0);


 	$oDB =& getDB();
 	ini_set('memory_limit', '200M');

 	// Format for output
-	$sOutputFormat = 'xml';
-	if (isset($_GET['format']) && ( $_GET['format'] == 'html' || $_GET['format'] == 'xml' || $_GET['format'] == 'json' || $_GET['format'] == 'jsonv2'))
-	{
-		$sOutputFormat = $_GET['format'];
-	}
+	$sOutputFormat = getParamSet('format', array('html', 'xml', 'json', 'jsonv2'), 'xml');

 	// Preferred language
 	$aLangPrefOrder = getPreferredLanguages();
@ -65,24 +56,28 @@
 	$hLog = logStart($oDB, 'reverse', $_SERVER['QUERY_STRING'], $aLangPrefOrder);


-	if (isset($_GET['osm_type']) && isset($_GET['osm_id']) && (int)$_GET['osm_id'] && ($_GET['osm_type'] == 'N' || $_GET['osm_type'] == 'W' || $_GET['osm_type'] == 'R'))
+	$sOsmType = getParamSet('osm_type', array('N', 'W', 'R'));
+	$iOsmId = getParamInt('osm_id', -1);
+	$fLat = getParamFloat('lat');
+	$fLon = getParamFloat('lon');
+	if ($sOsmType && $iOsmId > 0)
 	{
-		$aLookup = array('osm_type' => $_GET['osm_type'], 'osm_id' => $_GET['osm_id']);
+		$aLookup = array('osm_type' => $sOsmType, 'osm_id' => $iOsmId);
 	}
-	else if (isset($_GET['lat']) && isset($_GET['lon']) && preg_match('/^[+-]?[0-9]*\.?[0-9]+$/', $_GET['lat']) && preg_match('/^[+-]?[0-9]*\.?[0-9]+$/', $_GET['lon']))
+	else if ($fLat !== false && $fLon !==false)
 	{
 		$oReverseGeocode = new ReverseGeocode($oDB);
 		$oReverseGeocode->setLanguagePreference($aLangPrefOrder);

-		$oReverseGeocode->setLatLon($_GET['lat'], $_GET['lon']);
-		$oReverseGeocode->setZoom(@$_GET['zoom']);
+		$oReverseGeocode->setLatLon($fLat, $fLon);
+		$oReverseGeocode->setZoom(getParamInt('zoom', 18));

 		$aLookup = $oReverseGeocode->lookup();
 		if (CONST_Debug) var_dump($aLookup);
 	}
-	else
+	else if ($sOutputFormat != 'html')
 	{
-		$aLookup = null;
+		userError("Need coordinates or OSM object to lookup.");
 	}

 	if ($aLookup)
@ -95,7 +90,7 @@

 		$aPlace = $oPlaceLookup->lookupPlace($aLookup);

-		$oPlaceLookup->setIncludePolygonAsPoints($bAsPoints);
+		$oPlaceLookup->setIncludePolygonAsPoints(false);
 		$oPlaceLookup->setIncludePolygonAsText($bAsText);
 		$oPlaceLookup->setIncludePolygonAsGeoJSON($bAsGeoJSON);
 		$oPlaceLookup->setIncludePolygonAsKML($bAsKML);
@ -124,7 +119,7 @@

 	if ($sOutputFormat=='html')
 	{
-		$sDataDate = $oDB->getOne("select TO_CHAR(lastimportdate - '2 minutes'::interval,'YYYY/MM/DD HH24:MI')||' GMT' from import_status limit 1");
+		$sDataDate = chksql($oDB->getOne("select TO_CHAR(lastimportdate - '2 minutes'::interval,'YYYY/MM/DD HH24:MI')||' GMT' from import_status limit 1"));
 		$sTileURL = CONST_Map_Tile_URL;
 		$sTileAttribution = CONST_Map_Tile_Attribution;
 	}
--- a/website/search.php
+++ b/website/search.php
@ -5,6 +5,7 @@
 	require_once(CONST_BasePath.'/lib/init-website.php');
 	require_once(CONST_BasePath.'/lib/log.php');
 	require_once(CONST_BasePath.'/lib/Geocode.php');
+	require_once(CONST_BasePath.'/lib/output.php');

 	ini_set('memory_limit', '200M');

@ -25,24 +26,20 @@
 	}

 	// Format for output
-	$sOutputFormat = 'html';
-	if (isset($_GET['format']) && ($_GET['format'] == 'html' || $_GET['format'] == 'xml' || $_GET['format'] == 'json' ||  $_GET['format'] == 'jsonv2'))
-	{
-		$sOutputFormat = $_GET['format'];
-	}
+	$sOutputFormat = getParamSet('format', array('html', 'xml', 'json', 'jsonv2'), 'html');

 	// Show / use polygons
 	if ($sOutputFormat == 'html')
 	{
-		if (isset($_GET['polygon'])) $oGeocode->setIncludePolygonAsText((bool)$_GET['polygon']);
+		$oGeocode->setIncludePolygonAsText(getParamBool('polygon'));
 	}
 	else
 	{
-		$bAsPoints = (boolean)isset($_GET['polygon']) && $_GET['polygon'];
-		$bAsGeoJSON = (boolean)isset($_GET['polygon_geojson']) && $_GET['polygon_geojson'];
-		$bAsKML = (boolean)isset($_GET['polygon_kml']) && $_GET['polygon_kml'];
-		$bAsSVG = (boolean)isset($_GET['polygon_svg']) && $_GET['polygon_svg'];
-		$bAsText = (boolean)isset($_GET['polygon_text']) && $_GET['polygon_text'];
+		$bAsPoints = getParamBool('polygon');
+		$bAsGeoJSON = getParamBool('polygon_geojson');
+		$bAsKML = getParamBool('polygon_kml');
+		$bAsSVG = getParamBool('polygon_svg');
+		$bAsText = getParamBool('polygon_text');
 		if ( ( ($bAsGeoJSON?1:0)
 				 + ($bAsKML?1:0)
 				 + ($bAsSVG?1:0)
@ -68,9 +65,7 @@
 	}

 	// Polygon simplification threshold (optional)
-	$fThreshold = 0.0;
-	if (isset($_GET['polygon_threshold'])) $fThreshold = (float)$_GET['polygon_threshold'];
-	$oGeocode->setPolygonSimplificationThreshold($fThreshold);
+	$oGeocode->setPolygonSimplificationThreshold(getParamFloat('polygon_threshold', 0.0));

 	$oGeocode->loadParamArray($_GET);

@ -91,7 +86,7 @@
 	}
 	else
 	{
-		if (!(isset($_GET['q']) && $_GET['q']) && isset($_SERVER['PATH_INFO']) && $_SERVER['PATH_INFO'][0] == '/')
+		if (!getParamString('q') && isset($_SERVER['PATH_INFO']) && $_SERVER['PATH_INFO'][0] == '/')
 		{
 			$sQuery = substr(rawurldecode($_SERVER['PATH_INFO']), 1);

@ -114,7 +109,7 @@

 	if ($sOutputFormat=='html')
 	{
-		$sDataDate = $oDB->getOne("select TO_CHAR(lastimportdate - '2 minutes'::interval,'YYYY/MM/DD HH24:MI')||' GMT' from import_status limit 1");
+		$sDataDate = chksql($oDB->getOne("select TO_CHAR(lastimportdate - '2 minutes'::interval,'YYYY/MM/DD HH24:MI')||' GMT' from import_status limit 1"));
 	}
 	logEnd($oDB, $hLog, sizeof($aSearchResults));