Hooking up OpenCart with an iOS App via web services - ios

I need to develop an iOS app that fetches data from an OpenCart installation online. This includes ordering online, adding things to wish list, creating a user account. Logging in to an already existing user account and everything else that open cart offers. Basically, it is an iOS version of the OpenCart website that connects to the OpenCart's MySQL database.
I googled a little bit but couldn't find a proper API that I can use to hookup my app with OpenCart. What other options do I have? Does OpenCart offer any web service? (Like WordPress offers XML-RPC). Or is there a good API that I can use?

Unfortunately, OpenCart does not offer any API straight away. (that's for an answer).
There is an opensource OpenCart API project on GitHub that you can download (google it, I do not remember it's name) but this offers only the very limited and basic methods for just reading of data (if I remember correctly there were methods for getting the list of categories, list of products and product details and few more).
This could be your starting point: fork, add methods, share. Or create your own API from a scratch if you wish (again, sharing will be highly welcomed :-) - I believe you could even find users willing to pay for it - I would have created one if I had time - but sadly I have not...).

<?php
include_once 'functions.php';
class ControllerJsonJson extends Controller {
public function index() {
// Menu
$this->load->model('catalog/category');
$this->load->model('catalog/product');
$this->load->model('tool/image');
$data['categories'] = array();
$categories = $this->model_catalog_category->getCategories(0);
foreach ($categories as $category) {
if ($category['top']) {
// Level 2
$children_data = array();
$children = $this->model_catalog_category->getCategories($category['category_id']);
foreach ($children as $child) {
if ($child['image']) {
$childpopup = $this->model_tool_image->resize($child['image'], $this->config->get('config_image_popup_width'), $this->config->get('config_image_popup_height'));
$childthumb = $this->model_tool_image->resize($child['image'], 74,74);
} else {
$childthumb='';
$childpopup = '';
}
$filter_data = array(
'filter_category_id' => $child['category_id'],
'filter_sub_category' => true
);
$children_data[] = array(
'popup'=>$childpopup,
'thumb'=>$childthumb,
'id' => $child['category_id'],
'name' => $child['name'] . ($this->config->get('config_product_count') ? ' (' . $this->model_catalog_product->getTotalProducts($filter_data) . ')' : ''),
'href' => $this->url->link('product/category', 'path=' . $category['category_id'] . '_' . $child['category_id'])
);
}
if ($category['image']) {
$categorypopup = $this->model_tool_image->resize($category['image'], $this->config->get('config_image_popup_width'), $this->config->get('config_image_popup_height'));
$categorythumb = $this->model_tool_image->resize($category['image'], 74,74);
} else {
$categorypopup = '';
$categorythumb='';
}
// Level 1
$data['categories'][] = array(
'popup' => $categorypopup,
'thumb' => $categorythumb,
'id' => $category['category_id'],
'name' => $category['name'],
'children' => $children_data,
'column' => $category['column'] ? $category['column'] : 1,
'href' => $this->url->link('product/category', 'path=' . $category['category_id'])
);
}
}
$obj=new functions();
echo $obj->json_pretty_encode($data);
}
}

<?php
class functions {
//put your code here
public function json_pretty_encode($obj){
header("Content-type: application/json");
$json = json_encode($obj);
if (!$json) return $json;
$f = '';
$len = strlen($json);
$depth = 0;
$newline = false;
for ($i = 0; $i < $len; ++$i)
{
if ($newline)
{
$f .= "\n";
$f .= str_repeat(' ', $depth);
$newline = false;
}
$c = $json[$i];
if ($c == '{' || $c == '[')
{
$f .= $c;
$depth++;
$newline = true;
}
else if ($c == '}' || $c == ']')
{
$depth--;
$f .= "\n";
$f .= str_repeat(' ', $depth);
$f .= $c;
}
else if ($c == '"')
{
$s = $i;
do {
$c = $json[++$i];
if ($c == '\\')
{
$i += 2;
$c = $json[$i];
}
} while ($c != '"');
$f .= substr($json, $s, $i-$s+1);
}
else if ($c == ':')
{
$f .= ': ';
}
else if ($c == ',')
{
$f .= ',';
$newline = true;
}
else
{
$f .= $c;
}
}
return $f;
}
}

Related

How to avoid fatal error: Uncaught OAuthException when using cron job

Hi hope somone can help with this one. Ive had a birthday reminder app built, that aquires the usual permissions including offline access etc.
The app requires a daily cron job to be run on my server.
When I run the cron file a recieve the below error
Fatal error: Uncaught OAuthException: Invalid OAuth access token signature. thrown in blah/base_facebook.php on line 1140;
Is there a common reason for the error, am i doing anything wrong that stands out, and should i be displaying more code to get help from people?
below are the lines leading up to the error. My code ends on line 1140;
<?php
$name = 'api';
if (isset($READ_ONLY_CALLS[strtolower($method)])) {
$name = 'api_read';
} else if (strtolower($method) == 'video.upload') {
$name = 'api_video';
}
return self::getUrl($name, 'restserver.php');
}
protected function getUrl($name, $path='', $params=array())
{
$url = self::$DOMAIN_MAP[$name];
if ($path) {
if ($path[0] === '/') {
$path = substr($path, 1);
}
$url .= $path;
}
if ($params) {
$url .= '?' . http_build_query($params, null, '&');
}
return $url;
}
protected function getCurrentUrl() {
if (isset($_SERVER['HTTPS']) &&
($_SERVER['HTTPS'] == 'on' || $_SERVER['HTTPS'] == 1) ||
isset($_SERVER['HTTP_X_FORWARDED_PROTO']) &&
$_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') {
$protocol = 'https://';
}
else {
$protocol = 'http://';
}
$currentUrl = $protocol . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
$parts = parse_url($currentUrl);
$query = '';
if (!empty($parts['query'])) {
// drop known fb params
$params = explode('&', $parts['query']);
$retained_params = array();
foreach ($params as $param) {
if ($this->shouldRetainParam($param)) {
$retained_params[] = $param;
}
}
if (!empty($retained_params)) {
$query = '?'.implode($retained_params, '&');
}
}
// use port if non default
$port =
isset($parts['port']) &&
(($protocol === 'http://' && $parts['port'] !== 80) ||
($protocol === 'https://' && $parts['port'] !== 443))
? ':' . $parts['port'] : '';
// rebuild
return $protocol . $parts['host'] . $port . $parts['path'] . $query;
}
protected function shouldRetainParam($param) {
foreach (self::$DROP_QUERY_PARAMS as $drop_query_param) {
if (strpos($param, $drop_query_param.'=') === 0) {
return false;
}
}
return true;
}
protected function throwAPIException($result) {
$e = new FacebookApiException($result);
?>
CRON.php
<?php
require_once("src/facebook.php");
include("custom.php");
set_time_limit(0);
$config = array();
$config['array'] = $appID;
$config['secret'] = $appSecret;
$facebook = new Facebook($config);
$day = abs(date("j"));
$month = abs(date("n"));
$result = mysql_query("SELECT uid, uid2, name2 FROM birthdays WHERE birthmonth = '$month' AND birthday = '$day'");
while(($row = mysql_fetch_assoc($result)) && mysql_num_rows($result)) {
$link = $hostURL.'post.php?uid='.$row['uid'].'&uid2='.$row['uid2'];
$facebook->api('/'.$row['uid'].'/feed', 'POST',
array(
'link' => $link,
'from' => '299185790135651',
'picture' => $hostURL.'image.php?id='.$row['uid2'],
'name' => 'Send Cake',
'message' => 'It\'s '.$row['name2'].'\'s birthday today! Send them a virtual cake!',
'caption' => 'Sponsored by Intercake Ltd'
));
}
?>
also... what is 'from' => '299185790135651', ?
want to check my developer has put the right number here. Thanks
The best way to handle this is to use a try...catch statement. As follows:
try {
// some code that calls Facebook
} catch ( Exception $e ) {
// $e will contain the error - do what you want with it here
// e.g. log it or send an email alert etc.
}
The 'from' => '299185790135651' is a User / Page ID that publishes the message to the Feed. In this case, it's pointing to a Test Facebook Page.

Php5.3 magic method __call and Memory

I have a script with using a lot of Magic method __call.
The script have 15 000 iterance and the object is bigger.
After every iterance the memory grows. I use unset or $val = null; but the memory continues to grow.
What can i do?
An Exemple :
$data = null;
foreach ($field['method']['actions'] as $action) {
// si l'action ne concerne pas le name space principal
if (!array_key_exists('get', $action)) {
continue;
}
if (array_key_exists('begin', $action)) {
$data .= $action['begin'];
}
if (array_key_exists('action', $action)) {
$obj = $notice->__call('get' . ucfirst($action['action']));
$notice->clear();
if (is_object($obj)) {
$rsl = $obj->__call('get' . ucfirst($action['get']));
$obj->clear();
echo "\n" . 'get' . ucfirst($action['get']) . ' : ' . number_format(memory_get_usage());
$data .= $rsl;
unset($rsl);
} else {
$data .='';
}
$obj = null;
} else {
$data .= $notice->__call('get' . ucfirst($action['get']));
$notice->clear();
echo "\n" . 'get' . ucfirst($action['get']) . ' : ' . number_format(memory_get_usage());
}
if (array_key_exists('end', $action)) {
$data .= $action['end'];
}
}
//--
class Notice{
//--
protected $instanceObj = null;
public function __call($name, $arguments = null) {
$this->instanceObj = $this->$name($arguments);
return $this->instanceObj;
}
public function clear(){
$this->instanceObj = null;
}
//--
}
An exemple of log file :
getField : 24,446,752
getField : 24,447,352
getField : 24,447,720
getField : 24,448,096
getField : 24,483,320
getField : 24,483,336
getField : 24,483,728
...
getField : 25,267,936
...
getField : 35,596,712
...
You can see the memory never stop to brows.
The only solution is to sequence the script several execution. The problem is not PHP Symfony but generates too many objects. So I run the script Pacquet x. Otherwise it led to a saturation of memory.

How to correctly use oembed to pull thumbs from youtube

I show a lot of thumbs on my homepage from youtube videos. I was using this function below to grab the thumb from a youtube url which works fast but it doesn't work for url's in the shortned form like youtu.be/JSHDLSKL.
function get_youtube_screen_link( $url = '', $type = 'default', $echo = true ) {
if( empty( $url ) )
return false;
if( !isset( $type ) )
$type = '';
$url = esc_url( $url );
preg_match("|[\\?&]v=([^&#]*)|",$url,$vid_id);
if( !isset( $vid_id[1] ) )
return false;
$img_server_num = 'i'. rand(1,4);
switch( $type ) {
case 'large':
$img_link = "http://{$img_server_num}.ytimg.com/vi/{$vid_id[1]}/0.jpg";
break;
case 'first':
// Thumbnail of the first frame
$img_link = "http://{$img_server_num}.ytimg.com/vi/{$vid_id[1]}/1.jpg";
break;
case 'small':
// Thumbnail of a later frame(i'm not sure how they determine this)
$img_link = "http://{$img_server_num}.ytimg.com/vi/{$vid_id[1]}/2.jpg";
break;
case 'default':
case '':
default:
$img_link = "http://{$img_server_num}.ytimg.com/vi/{$vid_id[1]}/default.jpg";
break;
}
if( $echo )
echo $img_link;
else
return $img_link;
}
So I tried to use Oembed to get the thumbs instead which works for all variations of the youtube url but it retrieves the 480px/360px thumb which causes a lot of cropping to get it down to the 120px/90px size I use to display them. The other issue was it caused my page speed to increase by 4 seconds which Im guessing is a problem with the way I'm implementing it. Here's how I call the thumb inside a loop.
<?php
require_once(ABSPATH.'wp-includes/class-oembed.php');
$oembed= new WP_oEmbed;
$name = get_post_meta($post->ID,'video_code',true);
$url = $name;
//As noted in the comments below, you can auto-detect the video provider with the following
$provider = $oembed->discover($name);
//$provider = 'http://www.youtube.com/oembed';
$video = $oembed->fetch($provider, $url, array('width' => 300, 'height' => 175));
$thumb = $video->thumbnail_url; if ($thumb) { ?>
<img src="<?php echo $thumb; ?>" width="120px" height="90px" />
<?php } ?>
So how should I be doing this to maximize efficiency?
I came across this page from youtube explaining their oembed support, They mentioned that they output to json format so I made a function that gets the json data and then enables you to use it.
Feel free to ask if you need more help.
<?php
$youtube_url = 'http://youtu.be/oHg5SJYRHA0'; // url to youtube video
function getJson($youtube_url){
$baseurl = 'http://www.youtube.com/oembed?url='; // youtube oembed base url
$url = $baseurl . $youtube_url . '&format=json'; // combines the url with format json
$json = json_decode(file_get_contents($url)); // gets url and decodes the json
return $json;
}
$json = getJson($youtube_url);
// from this point on you have all your data placed in variables.
$provider_url = $json->{'provider_url'};
$thumbnail_url = $json->{'thumbnail_url'};
$title = $json->{'title'};
$html = $json->{'html'};
$author_name = $json->{'author_name'};
$height = $json->{'height'};
$thumbnail_width = $json->{'thumbnail_width'};
$thumbnail_height = $json->{'thumbnail_height'};
$width = $json->{'width'};
$version = $json->{'version'};
$author_url = $json->{'author_url'};
$provider_name = $json->{'provider_name'};
$type = $json->{'type'};
echo '<img src="'.$thumbnail_url.'" />'; // echo'ing out the thumbnail image
Ok I came up with a solution from pieces of other questions. First we need to get the id from any type of url youtube has using this function.
function getVideoId($url)
{
$parsedUrl = parse_url($url);
if ($parsedUrl === false)
return false;
if (!empty($parsedUrl['query']))
{
$query = array();
parse_str($parsedUrl['query'], $query);
if (!empty($query['v']))
return $query['v'];
}
if (strtolower($parsedUrl['host']) == 'youtu.be')
return trim($parsedUrl['path'], '/');
return false;
}
Now we can get use YouTube Data API to get the thumbnail from the video id. Looks like this.
<?php
$vid_id = getVideoId($video_code);
$json = json_decode(file_get_contents("http://gdata.youtube.com/feeds/api/videos/$vid_id?v=2&alt=jsonc"));
echo '<img src="' . $json->data->thumbnail->sqDefault . '" width="176" height="126">';
?>
The problem is that is causing an extra 2 seconds load time so I simply use the $vid_id and place it inside http://i3.ytimg.com/vi/<?php echo $vid_id; ?>/default.jpg which gets rid of the 2 seconds added by accessing the youtube api.

How to get the total number of tweets, retweets and replies on a particular tag or account, in Twitter using its API?

I have a requirement to get the total no.of tweets, retweets and replies on a particular tag or user account. How to get these numbers efficiently? The numbers should be exact and not like 100+.
I also need to get the total no.of direct messages.
Using this site as a starting point I've been trying the same thing:
Pull Twitter feed into your site
<?php
require_once 'db-functions.inc.php' ; //custom database functions
function saveTweets($screen_name) {
global $link;
$screen_name = dbEscape(strtolower(trim($screen_name)));
if (!$screen_name) { echo "<p><strong>Error: No screen name declared.</strong></p>\n"; return false; }
$row = dbGetRow("SELECT `id` FROM `retweet` WHERE `screen_name`='$screen_name' ORDER BY `id` DESC LIMIT 1");
$last_id = $row['id'];
$url = "http://api.twitter.com/1/statuses/user_timeline.xml?screen_name=$screen_name&count=1500&include_rts=true" ;
if ($last_id) { $url .= "&since_id=$last_id" ; }
$ch = curl_init($url);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, TRUE);
$xml = curl_exec ($ch);
curl_close ($ch);
$affected = 0;
$twelement = new SimpleXMLElement($xml);
foreach ($twelement->status as $status) {
$text = dbEscape(trim($status->text));
$time = strtotime($status->created_at);
$id = $status->id;
$retweet_count = $status->retweet_count;
dbQuery("INSERT INTO `twit` (`id`,`screen_name`,`time`,`text`,`hidden`,`retweet_count`) VALUES ('$id','$screen_name','$time','$text','n','$retweet_count')");
$affected = $affected + dbAffectedRows();
}
return "<p>".number_format($affected)." new tweets from $screen_name saved.</p>\n" ;
}
echo saveTweets('stackoverflow');
echo saveTweets('Apple');
echo saveTweets('Android');
echo saveTweets('Google');
?>
<h3>Stackoverflow</h3>
<?php
require_once 'databaseconnection.php' ; //database connection function
$result = dbQuery("SELECT * FROM `retweet` WHERE `hidden` != 'y' ORDER BY `retweet_count` DESC");
while ($row = mysql_fetch_array($result)) {
echo $row[0];
echo "<br>";
echo date("l, M j, Y, G:i a",$row[3]);
echo " : ";
echo stripslashes($row[2]);
echo "<br>";
echo stripslashes($row[4]);
echo "<br>Retweet: ";
echo stripslashes($row[6]);
echo "<br>";
echo "<br>";
}
?>
At the present time this doesn't have an "UPDATE" clause in it to take into account the retweet_count increasing, and you can remove:
return "<p>".number_format($affected)." new tweets from $screen_name saved.</p>\n" ;
If you don't need to see what has been updated.
Hope that helps

Problems decoding JSON data from Twitter API (THM oauth)

I am using tmhOAuth.php / class to login into twitter. I have been successful in logging in and sending a tweet.
When I go to use the friends.php script, I am having some problems inserting into my database. I do believe that my problem lies some where with the $paging variable in the code. Because it is looping only seven times. I am following 626 people so my $ids is 626 and then $paging is 7.
When I run the php in a web browser, I am only able to extract 7 of the followers (ie following user #626,following user 526,following user 426...) It seem to be echoing the last user on each page request. This due in part to requesting 100 user ids at a time, via the PAGESIZE constant. When I adjust the $paging with different number such as the number 626 I get {"errors":[{"code":17,"message":"No user matches for specified terms"}]}
Unfortunately, I suspect this is fairly simple php looping problem, but after the amount of time I have spent trying to crack this I can no longer think straight.
Thanks in advance.
define('PAGESIZE', 100);
require 'tmhOAuth.php';
require 'tmhUtilities.php';
if ($tmhOAuth->response['code'] == 200) {
$data = json_decode($tmhOAuth->response['response'], true);
$ids += $data['ids'];
$cursor = $data['next_cursor_str'];
} else {
echo $tmhOAuth->response['response'];
break;
}
endwhile;
// lookup users
$paging = ceil(count($ids) / PAGESIZE);
$users = array();
for ($i=0; $i < $paging ; $i++) {
$set = array_slice($ids, $i*PAGESIZE, PAGESIZE);
$tmhOAuth->request('GET', $tmhOAuth->url('1/users/lookup'), array(
'user_id' => implode(',', $set)
));
// check the rate limit
check_rate_limit($tmhOAuth->response);
if ($tmhOAuth->response['code'] == 200) {
$data = json_decode($tmhOAuth->response['response'], true);
if ($tmhOAuth->response['code'] == 200) {
$data = json_decode($tmhOAuth->response['response'], true);
$name = array();
foreach ($data as $val)
{
$name = $data[0]['screen_name'];
}
echo "this is the screen name " .$name. "\n";
$users += $data;
} else {
echo $tmhOAuth->response['response'];
break;
}
}
var_dump($users);
?>
The data I am trying to echo, then parse and insert into database is the standard twitter JSON data, so I won't include this in the message. Any help would be
Problem solved:
foreach ($data as $val)
{
$name = $val['screen_name'];
echo "this is the screen name " .$name. "\n";
$users[] = $name;
}

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