Blog

$linkviews = array();

function track_linkview ($link) {
global $linkviews;
array_push($linkviews, $link);
}

function log_linkviews () {
global $linkviews;
if (count($linkviews)) {
yahoo_track_page_params(array('link' => join("\002", $linkviews)));
}
}

function quote ($str) {
return preg_replace('/([\\\"\'])/', '\\\$1', $str);
}

function js_start () {
print "<script language=\"javascript\" type=\"text/javascript\">\n";
print "d=document;\n";
print "d.domain='yahoo.com';\n";
print "p=parent.document;\n";
print "lc=p.getElementById('lc');\n"; // weather content
print "ca=p.getElementById('ca');\n"; // change location link
print "cl=p.getElementById('cl');\n"; // change location
print "wt=p.getElementById('wt');\n"; // module title
print "wa=p.getElementById('wa');\n"; // alert
print "wg=p.getElementById('wg');\n"; // weather message
}

function js_end () {
print "</script>\n";
}

function js_set ($key, $value) {
return "$key=\"" . quote($value) . "\";\n";
}

function weather_result ($label, $url, $cond) {
$rd = $label == 'Today' ? 'r/w3' : 'r/w5';
$lo = $cond["lo"];
$hi = $cond["hi"];
$sky = $cond["sky"];
$fc = $cond["forecast"];
$result = "<a href=\"$rd/*$url\"><b>$label</b></a>";
$result .= "<img src=$sky alt=\"$fc\">";
$result .= "$fc<br>";
$result .= "hi <span class=hi>$hi°<span class=sc>F</span></span> - ";
$result .= "lo <span class=lo>$lo°<span class=sc>F</span></span>";
track_linkview($rd);
return $result;
}

function show_results ($city_state, $weather) {
$url = $weather->url;
$today = weather_result("Today", $url, $weather->today);
$tomorrow = weather_result("Tomorrow", $url, $weather->tomorrow);
$xfc =
"<span class=mr>" .
"<a href=\"r/w7/*$url\"><b>»</b> Extended Weather Forecast</a>" .
"</span>";

print js_set("wt.innerHTML",
htmlentities(fp_limit_location($city_state, PIXEL_WIDTH)));
print js_set("wt.href", "r/wt/*$url");
print js_set("ca.style.display", "inline");
print js_set("ca.className", "");
print js_set("lc.innerHTML",
"<div class=b>$today</div>" .
"<div class=b>$tomorrow</div>" .
$xfc);
//print "wt.focus();wt.blur();parent.clo=0;\n";
print "parent.clo=0;\n";

// U.S. location for local search, disabled
if (0 && preg_match('/\b\w{2}$/', $city_state)) {
print js_set("parent._wcs", $city_state);
print "if (p.sf1.csz) " . js_set("p.sf1.csz.value", $city_state);
}

yahoo_track_page_params(array("wrs" => $weather->id));
track_linkview("r/w7");
}

function show_error ($status) {
$code = "error";
if (!is_null($status)) {
$code .= ":$status";
}
print js_set("wa.innerHTML",
"<strong>Your search produced no matches.</strong><br>".
"Please re-enter a City or U.S. Zip Code:");
print js_set("wg.style.display", "none");
print js_set("wa.style.display", "block");
yahoo_track_page_params(array("wrs" => $code));
}

function show_picklist ($list) {
$ccc_file = "/home/y/share/htdocs/includes/weather/ccc2full.cdb";
$ccc_map = dba_open($ccc_file, "r-", "cdb");
$choices = "";
## re-order USA first
if (array_key_exists('USA', $list)) {
$newlist = array();
$newlist['USA'] = $list['USA'];
foreach ($list as $ccc => $region) {
$newlist[$ccc] = $region;
}
$list = $newlist;
}
foreach ($list as $ccc => $region) {
$country = $ccc;
if ($ccc_map !== FALSE &&
($full = dba_fetch($ccc, $ccc_map)) !== FALSE) {
$country = $full;
}
$choices .= "<div>$country</div>";
foreach ($region as $loc) {
list($id, $cs) = $loc;
$param = quote($id);
$choices .= "<a href=\"javascript:parent.zp('$param');\">$cs</a>";
}
}
if ($ccc_map !== FALSE) {
dba_close($ccc_map);
}
print js_set("wa.innerHTML",
"<span>" .
"<strong>Your search matched multiple cities.</strong><br>" .
"Please select the appropriate location below:" .
"</span>" .
"<span id=ls class=wil>" .
$choices .
"</span>");
print js_set("wg.style.display", "block");
print js_set("wa.style.display", "block");
yahoo_track_page_params(array("wrs" => "picklist"));
}

function retry_validate_location ($lm, $csz, $limit) {
$attempt = 0;

do {
if ($attempt) usleep(500000); // 0.5 seconds
$attempt++;
$return = $lm->validatelocation($csz, 1);
} while ($return[0] == '-5' and $attempt < $limit);

if ($return[0] != 1 and $return[0] != -1 and $return[0] != -2) {
error_log("validatelocation($csz) failed: $return[0]");
}

return $return;
}

function find_location ($lm, $wtr, $csz) {
$attempts = 3;
$return = retry_validate_location($lm, $csz, $attempts);
$results = array();

if (($return[0] == -2 or $return[0] >= 0) &&
array_key_exists('geolist', $return)) {
foreach ($return['geolist'] as $location) {
if ($wtr->load($location)) {
array_push($results, $location);
}
else {
error_log("no weather data for: " . fp_city_state($location));
}
}
}

return $results;
}

function set_weather_cookie ($value) {
$expire = time() + 90 * 86400;
setcookie(WEATHER_COOKIE, $value, $expire, "/", COOKIE_DOMAIN, 0);
}

function clear_weather_cookie () {
setcookie(WEATHER_COOKIE, "", 0, "/", COOKIE_DOMAIN, 0);
}

## main ()

$v = $_GET;
$location = new yahoo_location_manager();
$weather = new YahooFrontpageWeather(array('pixel_width' => PIXEL_WIDTH));

## /yahoo/site/main/weather (non-frontpage traffic)
yadl_spaceid('P#97167465');
yahoo_track_page_params(array('PL' =>
yahoo_full_cookie('PL') === FALSE ? 0 : 1));

if (array_key_exists('test', $v)) {
$version = 'v' . yahoo_get_data(YIV_GET, 'test');
yahoo_track_page_params(array('test' => $version));
}

if (array_key_exists('wl', $v)) {
$pixel = 'http://us.i1.yimg.com/us.yimg.com/i/space.gif';
$wlocid = yahoo_get_data(YIV_GET, 'wl');

if ($weather->load($wlocid)) {
set_weather_cookie($wlocid);
}

header("Location: $pixel");
}
else if (array_key_exists('p', $v) and
(($csz =
yahoo_get_data(YIV_GET, 'p', YIV_FILTER_UNSAFE_RAW)) != '')) {
$results = find_location($location, $weather, $csz);

## invalid location
if (count($results) == 0) {
if ($csz == 'delete') {
// clear weather cookie
if (yahoo_full_cookie(WEATHER_COOKIE) !== FALSE) {
clear_weather_cookie();
}
// clear location manager cookie
if (yahoo_full_cookie('PL') != FALSE) {
setcookie('PL', '', 0, '/', ".yahoo.com");
}
}
js_start();
show_error('l');
js_end();
}
## single result
else if (count($results) == 1) {
$loc = $results[0];
$cs = fp_city_state($loc);
$id = $loc['uniqueId'];

if ($weather->load($loc)) {
if (array_key_exists('sv', $v) && $v['sv'] == 'on') {
// clear weather cookie
if (yahoo_full_cookie(WEATHER_COOKIE) !== FALSE) {
clear_weather_cookie();
}

// clear PL older cookie scoped on www.yahoo.com
if (yahoo_cookie_part('PL', 'V') == '1.0') {
setcookie('PL', '', 0, '/', COOKIE_DOMAIN);
}

$return = $location->setLocation($id, "weather", 1);
if ($return[0] != 1) {
error_log("setLocation($id) failed: $return[0]");
}

yahoo_track_page_params(array('wsv' => 1));
}

if ($cs == '') {
$cs = $weather->location;
}

js_start();
show_results($cs, $weather);
js_end();
}
else {
js_start();
show_error('w');
js_end();
}
}
## pick list
else {
$list = array();

// group by country
foreach ($results as $loc) {
$cs = fp_city_state($loc);
$id = $loc['uniqueId'];
$ccc = $loc['country'];
$item = array($id, $cs);

if (array_key_exists($ccc, $list)) {
array_push($list[$ccc], $item);
}
else {
$list[$ccc] = array($item);
}
}

js_start();
if (count($list) == 0) {
show_error('pl');
}
else {
show_picklist($list);
}
js_end();
}
}
## initial pageview
else {
$loc = fp_get_weather_location();

if ($loc !== FALSE) {
$cs = fp_city_state($loc);

if ($weather->load($loc)) {
if ($cs == '') {
$cs = $weather->location;
}
js_start();
show_results($cs, $weather);
js_end();
}
}
}

log_linkviews();