Adding ad php миоры. Подключение к AD
Some HTML and text ads can be aligned horizontally using the text-align CSS property. More complicated issues of alignment and position within the various template files can be solved using proper CSS styling.
Adding Style to Ads
You may want to use some simple CSS to wrap the post around your advertising. In this example, the ad will appear in the upper right of each post, with the post text wrapped around it.
Of course, you can also create styles for ads in your stylesheet.
Plugins for Advertising
Cg-PowerPack Includes the CG-Inline plugin and CG-Amazon CG-Inline is a powerful macro system for embedding auto-generated items within your posts/articles. In combination with CG-Amazon, allows for quick insertion of Amazon links/images within a post. Flexible image inlines, for floating/embedded thumbnails or image links. Powerful permalink creation. CG-Amazon provides live Amazon data feeds, product links, wishlist links, keyword lookups, all product types/catalogs, article inlined and sidebars, keyword lookups, admin interface and caching system. MooseCandy Adds content before specified posts (ex: an advertising banner between 1st and 2nd post). WP-Amazon Search and include items from Amazon.com to your post entries. This plugin adds a link called "Insert item from Amazon.com"? on the post page. This link launches a search window which allows an author to search for items from Amazon.com to be included on the author"s post entry. Adsense Beautifier Adsense beautifier is a plugin available for Wordpress to make your Adsense look beautiful in order to increase you Adsense earnings. Images adjacent to ads can help increase click through rate (CTR).Troubleshooting Ads
If you are having trouble with your ads, here are some possible solutions.
Why Aren"t My Ads Showing Up?
In many cases it has nothing to do with WordPress, but here are a few things to remember or questions to ask yourself:
- With the context sensitive ad services, often the reason is that the keywords for context sensitive ads come from a search engine. Try a search for the URL where the ads should appear in the associated search engine and if the URL is not indexed, you will not get ads.
- Many ads use Javascripts. Some of those scripts do not validate correctly and some of them may behave oddly with certain stylesheet features or even with other scripts on the same page.
- Doublecheck your placement. For example, if you included the ad code in the Post section of the Main template file and now you are looking at a Page instead of a Post.
- Are you running a firewall, ad blocker or other software that may block the ad code? Do you have Javascript enabled in your browser? If the ad uses Flash or another plugin, do you have the required plugin installed?
- Try a thorough reload of the page. Clear your browser cache and cookies. Shut down your browser. Restart the browser. Load the page.
All I Get are Ads for Blogs
Context sensitive ads spider your site and index the keywords. If your site is heavy on words and links related to blogging, you will get lots of ads related to blogging. There are two things you can do to improve this. First, eliminate unnecessary blogging references. Second, make longer, keyword rich posts. Posts over 250 words tend to produce better context sensitive ads.
If you are using Google"s Adsense and having this problem, you may be able to see some improvement by using section targeting .
I Get Different Ads on Different Pages
If you find you are getting different ads at example.com/index.php than from the URI example.com , this issue with context sensitive ads may be because the search engine reads these as two separate URLs and may index them on different days.
The URL with index.php may be read by the search engine more or less often than the same page without the index.php . Once both are properly indexed, the ads should match -- at least for a while. The only solution, other than time, is to do everything you can to eliminate the use of the index.php in links, etc. A similar situation can occur with www.example.com reading differently than example.com without the www .
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There is one major question that may be asked to this tutorial’s subject: “Why would I want PHP to access Active Directory? I can use Users and Groups to manage it already.” The answer to this is (though I am sure there are others): Quite often, management wants to delegate some Active Directory (AD) functions to users who don’t or shouldn’t have access to LDAP Users and Groups. As a real-life example, I once worked at a company that wanted their secretary to be able to add users, delete users, and update user passwords and contact info from a nice, user-friendly, web interface. I put together a simple web-based interface using PHP and LDAP, and thus this tutorial was born.
Step 1: Configure PHP with LDAP Support
If PHP doesn’t already have LDAP support enabled, depending on your OS, you’ll need to enable it. On Linux, there are a few different ways to do it – either compile PHP with LDAP support like so (universal across all distros):
./configure --with-ldap
or install your distro-specific php-ldap package and then add the following line in your php.ini :
Extension=mod_ldap.so
and restart Apache.
On Windows, uncomment or add the following line in your php.ini :
Extension=php_ldap.dll
and restart Apache/IIS
Step 2: Connect to Your Existing Active Directory
Once your PHP installation has been updated to include LDAP support (or had it in the first place), it’s time to initiate a connection. Pop this into a PHP file:
So in the code above, we’ve created a connection and assigned it to ldap.example.com . Some LDAP installations and functions require an explicit setting of the protocol version; for me, it has become a habit to set it to avoid any errors, and I have done so in the line following the connection.
Step 3: Binding PHP to Active Directory
An anonymous connect is all well and good, but we’ve got to bind to the Active Directory before we can do anything with it. Depending on your security settings, an anonymous bind might suffice for performing searches on the Active Directory; for anything requiring access, however, you’ll need a user with the appropriate permissions. Since users come and go, it might be a good idea to make a user with permissions solely for PHP that interacts with LDAP on an administrative level – in this example, we’ll go with “ldapweb”.
To bind to your Active Directory:
$ldap_bind = ldapbind($adconn, "ldapweb", "password");
So far, still nice and self-explanatory – this line binds against our open Active Directory connection with username “ldapweb” and password “password”).
Despite existing, $ldap_bind won’t be used again – this is a source of common confusion for many first-timers to the PHP LDAP library, myself included. It is a boolean and is only used to check if the ad is bound or not. All queries from now on will query against $adconn , the original LDAP connection.
Step 4: Searching against the Active Directory
Here’s where the real meat of the PHP LDAP library lies! The ldap_search function is incredibly powerful, though it’s also incredibly complex; it’s akin to a SQL query in terms of power and possible options. We are going to use it in a far simpler manner, however – we are going to get a list of usernames from the Active Directory:
$dn = "OU=People,OU=staff,DN=ldap,DN=myawesomesite,DN=com";
$attribute = array("samAccountName");
$result = ldap_search($adconn, $dn, "(cn=*)", $attribute);
$entries = ldap_get_entries($ad, $result);
for ($i = 0; $i < $entries["count"]; $i++) {
echo $entries[$i]["samAccountName"];
echo "
";
}
This isn’t entirely self-explanatory, so let’s run through this line-by-line to figure out what’s going on. When accessing LDAP through PHP, all of the variables come back in the form of an array- this is why we can’t simply use $results straight away. By using ldap_get_entries , we iterate through $results and get back a multidimensional array that contains both the number of the entry in question as well as the Active Directory variable in question (in this case, “samAccountName”). The for loop iterates through each entry and echoes the name as well as an HTML break, giving you a line by line breakdown of every displayname variable in the database.
Step 5: Adding, Modifying, and Deleting Database Entries
I’ll cover all of these in one section because the syntax for them is more or less the same. To add, replace, and remove any entries from the database you use (predictably) ldap_mod_add , ldap_mod_replace , and ldap_delete . Let’s take a look at adding an entry into the database.
$newuser["samAccountName"] = "awesomeman"; $newuser["givenname"] = "awesome"; $newuser["sn"] = "man"; $result = ldap_mod_add($adconn, $dn, $newuser);
That covers ldap_mod_add . ldap_mod_replace uses the exact same syntax, except you have to make the $dn variable specific to what you want to replace. For example, if you wanted to replace those entries in awesomeman instead of adding them, you would do:
$dn = "CN=Awesome Man,OU=People,OU=staff,DN=ldap,DN=myawesomesite,DN=com"; $newuser["samAccountName"] = "awesomeman"; $newuser["givenname"] = "awesome"; $newuser["sn"] = "man"; $result = ldap_mod_replace($adconn, $dn, $newuser);
ldap_delete is even easier, only requiring the specific DN and the $adconn :
$dn = "CN=Awesome Man,OU=People,OU=staff,DN=ldap,DN=myawesomesite,DN=com"; $result = ldap_delete($adconn, $dn);
Step 6: Putting It All Together
In this step, we’re going to write a small function that searches the database for a given username and replaces it with a specified username.
Step 7: Conclusion
There are, of course, many other powerful uses to the PHP + LDAP combination, but this quick tutorial is designed to give you the quick and dirty of getting PHP to connect and interact with an Active Directory server; you never know when that manager’s going to ask you for a slick, password-changing web front-end for their secretaries. Good luck, and happy coding!
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2 comments
Nice article, all basic information how to work with LDAP is mentioned. Nowadays you normally use a Framework component for that, so you don’t have to work with this low level functions (like Zend_Ldap).
Hey … i am using the same kinda setup as you have explained. Nice article thou.
I am using Windows Active Directory on 2008 I keep getting this error
Warning: ldap_mod_replace() : Modify: Server is unwilling to perform in ……
Search quite a bit on this. Can any one help
Comment
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Серия контента:
Для выполнения основных операций по работе с AD, таких как добавление или удаление пользователя, изменение данных или членства в группах, и в особенности для массовых операций (например, сформировать список всех пользователей по отделам) вовсе не обязательно изучать Visual Basic или PowerShell - для этого достаточно знания PHP (а также наличия пользователя с необходимыми правами).
Часто используемые сокращения:
- AD - Active Directory (служба каталогов);
- LDAP - облегченный протокол доступа к каталогу (lightweight directory access protocol);
- DN - отличительное имя (distinguished name).
В первой части статьи рассматривался конфигурационный файл приводимого примера, а также некоторые используемые в нем функции, с указанием их особенностей реализации. Приводились также примеры данных входных и выходных массивов. В данной части приводится основная часть скрипта, непосредственно запускаемая в консоли и вызывающая все описанные в прошлой части функции.
Основной скрипт
Скрипт начинается с вводной части, которая определяет места подгрузки функций, пути по умолчанию к файлам журнала и конфигурации, открывает файл журнала, читает и разбирает конфигурационный файл и опции командной строки. Конфигурационный файл разбирается функцией parse_config_file, размещенной в файле parseconfig.php и не приводимой здесь, но присутствующей в полной версии скрипта на . Вводная часть программы приведена в Листинге 1.
Листинг 1. Вводная часть основного скрипта.
array ("debug" => 0, "clean" => 0, "verbose" => 0)); // Открыть файл журнала $handle = fopen($logfile, "a") or die(sprintf("Log file %s cannot open", $logfile)); // Разобрать конфигурационный файл $_config = parse_configfile($config); // Разобрать опции командной строки $rev = parse_options($_config, $_params); // Началный запуск программы закончен safe_logger(sprintf("PHPListADUsers ver. %s started", $rev), "");Далее идет собственно чтение данных из LDAP - это самая короткая часть скрипта, потому что все делается функциями: подключиться, запросить, получить. Часть, в которой выполняется чтение данных, приведена в Листинге 2. Стоит обратить внимание на то, как строится массив атрибутов, которые будут прочитаны для передачи в ldap_data_query: если консоль поддерживает UTF-8, то параметр recode можно поставить в false.
Листинг 2. Чтение данных из LDAP-сервера.
// Подключиться к LDAP-серверу if (!$ldapconn = ldap_server_connect($_config)) safe_logger(sprintf("Cannot connect to LDAP server $s", $_config["root"]["ldap_server"]), "DIE"); // Построить путь к выходном файлу $_sarglist = sprintf("%s/%s", $_config["root"]["etcdir"], $_config["root"]["sarglist"]); // Счетчик обработанных записей $_processed = 0; // Из AD будут запрошены вот эти атрибуты $attrs = array(0 => array("name" => "cn", "recode" => "true"), 1 => array("name" => "samaccountname", "recode" => "true")); // Получить данные из AD $info = ldap_data_query($_config, $ldapconn, $attrs);Далее идет чтение существующего файла, если он есть и его не надо удалять. Если файл существует, то он считывается, и из логинов, указанных в нем (первый столбец), формируется массив уже присутствующих в файле записей - для того, чтобы пропускать уже существующие. Часть, занимающаяся чтением файла, приведена в Листинге 3.
Листинг 3. Чтение существующего файла sarglist.
// Записи, которые уже есть в выходном файле $presented = array(); // Удалить файл, если надо if ($_params["modes"]["clean"]) unlink($_sarglist); // Если файл существует, то прочитать его if (file_exists($_sarglist)) { // Если существует, но не читается, аварийно завершить if (!is_readable($_sarglist)) safe_logger(sprintf("File %s cannot open to read", $_sarglist), "DIE"); // Получить данные существующего файла $lines = file($_sarglist); // Разбить каждую строку и выбрать логин foreach ($lines as $_oneline) { $pieces = explode(" ", $_oneline); $presented = $pieces; } // Вывести, сколько записей прочитано из файла safe_logger(sprintf("Read %d records from file %s", count($presented), $_sarglist),""); }Ну и, собственно, основная часть скрипта - до этого, вообще говоря, все шла подготовка: получить данные из одного места, получить данные из другого... Каждая запись, прочитанная из AD, проверяется на наличие в файле, и если она там отсутствует, то в файле формируется новая запись с необходимыми данными, иначе же запись просто пропускается. В конце работы скрипт пишет, сколько он добавил записей, закрывает соединения и завершается. Основная часть скрипта приведена в Листинге 4.
Листинг 4. Основная часть скрипта.
// Основной цикл обработки - берется одна запись, полученная из AD и ищется в файле // Если она уже есть - пропускается, иначе добавляется $add = fopen($_sarglist, "a+") or safe_logger(sprintf("Sorry, I could not open file %s for writing", $_sarglist), "DIE"); $ignored = explode(",", $_config["root"]["ignore_list"]); for ($i = $_processed = 0, $j = count($info); $i < $j; $i++) { // Если логин отсутствует в файле и в списке игнорируемых if ((!in_array($info[$i]["samaccountname"], $presented)) && (!in_array($info[$i]["samaccountname"], $ignored))) { // Вывести строку в файл $oneadd = sprintf("%s \t%s\n", $info[$i]["samaccountname"], $info[$i]["cn"]); fwrite($add, $oneadd); $_processed++; } } if ($_processed) safe_logger(sprintf("Added %d records in file %s", $_processed, $_sarglist), ""); ldap_unbind($ldapconn); fclose($add); fclose($handle); ?>Заключение
Как совершенно очевидно, языки высокого уровня предоставляют несравнимо большее удобство при программировании взаимодействия с AD. Фактически все в данном скрипте сводится к манипулированию элементами массивов. И хотя PHP вовсе не считается языком для программирования консольных приложений, это может оказаться всего лишь предубеждением: вот вам вполне полноценная программа.
In this section, you"ll learn how to search and retrieve data from the directory server, as well as add, modify, and delete entries.
ldap_search()
resource ldap_search (resource link_identifier, string base_dn, string filter [, array attributes [, int attrsonly [, int sizelimit [, int timelimit [, int deref]]]]])
The ldap_search() function offers a powerful means for searching the directory server pointed to by link_identifier. It will search to a depth of LDAP_SCOPE_SUBTREE, a value that can be set via the previously introduced function ldap_set_option(). By default, this value is set to search to an infinite depth, or through the entire scope of the tree as defined by the base_dn. The search filter, equivalent to a relational database query, is passed in via the filter parameter. Finally, you can specify exactly which attributes should be returned within the search results via the attributes parameter. The remaining four parameters are optional, and therefore in the interests of space, I"ll leave it as an exercise to you to learn more about them. Let"s consider an example:
"; } ldap_unbind($ad); ?> A sampling of the results follow: Gilmore, Jason (Columbus) Shoberg, Jon (Columbus) Streicher, Martin (San Francisco) Wade, Matt (Orlando)
Most of this is likely straightforward, save for the potentially odd way in which attribute values are referenced. All attribute rows are ultimately multi-dimensional arrays, with each attribute value referenced by a combination of row number, attribute name, and attribute array index. So, for example, even attributes such as "sn", the attribute name for the user"s last name, is an indexed array.
ldap_mod_add()
boolean ldap_mod_add(resource link_id, string dn, array entry)
Adding entries to the directory server is accomplished via the ldap_mod_add() function. A new entry is added simply by creating an array consisting of the attribute/value mappings intended to comprise the new row. This process is perhaps best explained with an example:
As is the case with all directory server tasks, be sure that the binding user has proper permissions to add the target data; otherwise, errors will occur.
ldap_mod_replace()
boolean ldap_mod_replace(resource link_id, string dn, array entry)
Modifying entry attributes is accomplished via the ldap_mod_replace() function. It operates exactly like ldap_add(), save for the added step of identifying the entry you"d like to modify. This is done by pointing to a very specific dn. Like ldap_add(), both a valid link identifier and an array consisting of the entries you"d like to update must be provided. An example follows, demonstrating how a user"s telephone number would be modified. In particular, take note of the very specific DN (pointing to my particular entry).
As is the case with all directory server tasks, be sure that the binding user has proper permissions to modify the target data; otherwise, unexpected errors will occur.
ldap_delete()
boolean ldap_delete(resource link_id, string dn)
Rounding out our survey of key PHP LDAP functions is ldap_delete(). This function is used to delete an existing entry. Like ldap_mod_replace(), a very specific DN must be provided to effect the deletion. The following example demonstrates how to remove the "Jason Gilmore" user entry from Active Directory:
As is the case with all directory server tasks, be sure that the binding user has proper permissions to delete the target data; otherwise, unexpected errors will occur.
Searching Active Directory via the Web
I always like to round out a tutorial with an applicable example that readers can immediately adapt to their own needs. In this tutorial, I"ll show you how to create a search interface capable of searching by name, location, or phone number. All you"ll need to do is modify the connection variables and base DN. To begin, let"s create the search interface, which will be saved as "search.html":
Figure 1 offers an example of what this search form would look like in the browser.
Figure 1. The Active Directory Search Form
Next, we"ll need to create the logic that effects the search. This short bit of code is shown here:
0) { for ($i=0; $i<$entries["count"]; $i++) { echo "
Name: ".$entries[$i]["displayname"]."
";
echo "Phone: ".$entries[$i]["telephonenumber"]."
";
echo "Email: ".$entries[$i]["mail"]."
No results found!
"; } ldap_unbind($ad); ?>You can either change the action destination specified in the search interface, pointing it to a file consisting of the above script, or you can bundle it into the same file as the search interface, and use isset() and an if conditional to trigger execution in the case that the search submit button is depressed. Of course, you"ll want to add some additional data validation criteria prior to deploying such a script. Figure 2 offers a sampling of the search results.
Figure 2. Search Results
Conclusion
Although PHP has long been my primary language for developing Web applications, I"ve found Perl to be an integral part of my programmer"s toolkit. When working with directory servers, this sentiment is no different. Therefore, the next article is devoted to Perl/LDAP basics. As was the case with this article, all examples are specific to Microsoft"s Active Directory, although you should be able to easily apply them to any directory server implementation. We"ll round out that article with an example demonstrating how to create statically cached Web-based user directories using a Perl script and CRON (or Windows Task Scheduler).
I welcome questions and comments! E-mail me at [email protected] . I"d also like to hear more about your experiences integrating Microsoft and Open Source technologies!
About the Author
W. Jason Gilmore (http://www.wjgilmore.com/) is an Internet application developer for the Fisher College of Business. He"s the author of the upcoming book, PHP 5 and MySQL: Novice to Pro, due out by Apress in 2004. His work has been featured within many of the computing industry"s leading publications, including Linux Magazine, O"Reillynet, Devshed, Zend.com, and Webreview. Jason is also the author of A Programmer"s Introduction to PHP 4.0 (453pp., Apress). Along with colleague Jon Shoberg, he"s co-author of "Out in the Open," a monthly column published within Linux magazine.
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