Posts tagged php

Query String in URL using Codeigniter

0
609 days
by in Uncategorized

CodeIgniter by default won’t allow you to use query strings in the URL.

This is how you enable query string in url in codeigniter.

1. Set $config['uri_protocol'] = “PATH_INFO” in config.php

2. Set $config['enable_query_strings'] = TRUE in config.php

3. Make you sure you have QSA in your .htaccess. For example,

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond $1 !^(index\.php|images|includes)
RewriteRule ^(.*)$ /index.php/$1 [L,QSA]

Note: If you make these changes, the pagination module is affected. So, if you had implemented any pagination before changing these settings, you might want to check them again.

Importing Contacts from Google Mail using OAuth

3
618 days
by in Uncategorized

This is my second post in the fetch contacts from email account series. In this post, we are going to fetch contacts from a Google account. This isn’t a detailed tutorial, but a quick 2 minute how-to.

$this->config->item(‘google_return_url’) is the url of the page to which user is returned after a login attempt.

1. Add the following code where the user has to select Google Mail to import contacts.

<a href="https://www.google.com/accounts/AuthSubRequest?next=<?php echo $this->config->item('google_return_url').'?data=abc'; ?>&scope=http://www.google.com/m8/feeds/contacts/default/thin&secure=0&session=1">Fetch Google Contacts</a>

2. Include these 2 functions in your PHP code.
function make_api_call($url, $token)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $curlheader[0] = sprintf("Authorization: AuthSub token=\"%s\"/n", $token);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $curlheader);
    $output = curl_exec($ch);
    curl_close($ch);
    return $output;
}
 
function get_session_token($onetimetoken)
{
    $output = make_api_call("https://www.google.com/accounts/AuthSubSessionToken", $onetimetoken);
    if (preg_match("/Token=(.*)/", $output, $matches))
    {
        $sessiontoken = $matches[1];
    } else {
        echo "Error authenticating with Google.";
        exit;
    }
    return $sessiontoken;
}
3. Add the following code to the return url file.

$sessiontoken = get_session_token($_GET['token']);
$contacts = make_api_call("http://www.google.com/m8/feeds/contacts/default/thin?alt=json&max-results=1000", $sessiontoken);
$contacts = json_decode($contacts, TRUE);
foreach ($contacts['feed']['entry'] as $contact)
{
    $emails[] = $contact['gd$email'][0]['address'];
}
//$emails array has the email addresses of all the contacts.
4. That’s it folks. It is that simple.

Further reading :
1. http://code.google.com/apis/contacts/
2. http://code.google.com/apis/contacts/docs/3.0/reference.html

Importing Contacts from Yahoo Mail using OAuth

10
618 days
by in Uncategorized

Importing contacts from mail accounts using OAuth is a long solved problem which doesn’t have a good implementation. I googled and googled for a good library which imports contacts from Yahoo/GMail/Hotmail. Finally, I was forced to create one by myself. Here are the instructions on how to get it up and running for Yahoo Mail in your server in 2 mins.

1. You need a Yahoo API Key to fetch contacts from Yahoo. Proceed to Yahoo Developer Dashboard and create a key.

Application URL in the createKey page is the URL to which you will be redirected to after a successful/failed login attempt.
Application Domain is be your domain name.
Choose “This app requires access to private user data.” in the Access Scope and under the options which appear below that, select “Read” access for “Yahoo! Contacts”.
Store the API Key, Shared Secret and Application ID carefully.

2. Download Yahoo Social SDK for PHP from http://developer.yahoo.com/social/sdk/php/

$this->config->item(‘yahoo_consumerkey’) is your Yahoo API Key.
$this->config->item(‘yahoo_consumersecret’) is your Yahoo Shared Secret.
$this->config->item(‘yahoo_applicationurl’) is your Application URL you provided in Step 1.
$this->config->item(‘yahoo_applicationid’) is your Yahoo Application ID.

3. Add the following code where the user has to select Yahoo Mail


<a href="<?php echo YahooSession::createAuthorizationUrl($this->config->item('yahoo_consumerkey'), $this->config->item('yahoo_consumersecret'), $this->config->item('yahoo_applicationurl').'?data=abc'); ?>">Fetch Yahoo Contacts</a>

You may remove the ?data=abc if you don’t want to pass any data to Yahoo. Anything you pass here can retrieved back at Application URL as GET parameters.

4. Include the required files from the opensocial SDK library and then add the following snippet to the Application URL you provided in Step 1.

if (YahooSession::hasSession($this->config->item('yahoo_consumerkey'), $this->config->item('yahoo_consumersecret'), $this->config->item('yahoo_applicationid')))
{
    $session = YahooSession::requireSession($this->config->item('yahoo_consumerkey'), $this->config->item('yahoo_consumersecret'), $this->config->item('yahoo_applicationid'));
    $user = $session->getSessionedUser();
    $contacts = $user->getContacts(0, 1000);
    foreach ($contacts->contacts->contact as $contact)
    {
        foreach ($contact->fields as $field)
        {
            if ($field->type == "email")
            {
                $emails[] = $field->value;
            }
        }
    }
    //$_GET['data'] will be equal to "abc" at this page.
}
//$emails array has the email addresses of all the contacts.

5. That’s it folks. It is that simple.

Further reading :
1. http://developer.yahoo.com/social/sdk/php/
2. http://developer.yahoo.com/oauth/

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