2004-10-22 15:22:13 +00:00
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta content="text/html; charset=ISO-8859-15"
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http-equiv="content-type">
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<title>File upload</title>
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<link rel="stylesheet" type="text/css" href="style/layout.css">
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2008-01-01 13:06:51 +00:00
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<link rel="shortcut icon" type="image/x-icon" href="images/favicon.ico">
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2004-10-22 15:22:13 +00:00
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</head>
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<body>
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<h1 style="text-align: center;">File upload<br>
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</h1>
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<br>
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<div style="text-align: center;"><img
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style="width: 886px; height: 162px;" alt="upload"
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src="images/lam_upload.png"><br>
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<div style="text-align: left;"><br>
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<h2>Account selection (masscreate.php)<br>
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</h2>
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This is the initial page of the file upload. The user selects the
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account type for the new upload.<br>
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<br>
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<br>
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<h2>Attribute overview (masscreate.php)</h2>
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After the account selection LAM will display an overview of the
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possible and required input columns.<br>
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The <span style="font-style: italic;">DN</span> attributes (<span
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style="font-style: italic;">DN suffix</span> and <span
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style="font-style: italic;">RDN</span>) are static and are always
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displayed. The default suffix is read from config with <span
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style="font-weight: bold;">getAccountSuffix()</span> and the list of
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RDN possibilities is taken from modules.inc - <span
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style="font-weight: bold;">getRDNAttributes()</span>.<br>
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The next attributes are read from modules.inc - <span
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style="font-weight: bold;">getUploadColumns()</span>. LAM will display
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all attributes of one module in a separate fieldset. The <span
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style="font-weight: bold;">getUploadColumns()</span> function also
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returns if an attribute is required and additional information like an
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example value.<br>
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<br>
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After clicking the upload button the user will be forwarded to the
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account building page.<br>
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<br>
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<br>
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<h2>Account building (massBuildAccounts.php)<br>
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</h2>
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This part takes the submitted <span style="font-weight: bold;">CSV file</span>
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and generates the LDAP accounts.<br>
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<br>
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The scripts separates the head row from the data rows in the CSV file.
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The head array is used to find the position of the input values. The
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data array contains one subarray for each account.<br>
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<br>
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After the data has been extracted there are some basic checks done,
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e.g. checking required and unique columns. The modules provide the
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necessary information for this.<br>
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<br>
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Then all data is given to the modules with <span
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style="font-weight: bold;">buildUploadAccounts()</span> in
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modules.inc. They return a list of accounts which can be uploaded with <span
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style="font-style: italic;">ldap-add()</span> and generate possible
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error messages.<br>
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<br>
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If the accounts are built the script will give the user the possibility
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to check the result with an <span style="font-style: italic;">LDIF-file</span>
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or to do the upload.<br>
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<br>
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<br>
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<h2>LDIF export (massBuildAccounts.php)<br>
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</h2>
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LAM simply takes the built accounts and generates an <span
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style="font-style: italic;">LDIF-file</span> from them. This is passed
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to the user's browser.<br>
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The <span style="font-style: italic;">LDIF-file</span> will only
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contain the accounts itself. If modules do additional tasks after the
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upload (e.g. adding users to groups) this will not be covered.<br>
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<br>
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<br>
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<h2>Account creation (massDoUpload.php)<br>
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</h2>
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This script finally uploads the LDAP accounts with <span
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style="font-style: italic;">ldap_add()</span>.<br>
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<br>
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The upload can last longer than the maximum execution time of PHP.
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Therefore the script will check regulary how much time is left and
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pause the upload. This is resumed with a meta refresh which loads the
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script again.<br>
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<br>
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After all accounts were created in LDAP the modules may do additional
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tasks. LAM will call <span style="font-weight: bold;">doUploadPostActions()</span>
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and also provide a list of failed accounts which can be ignored. The
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function is called as long the returned status is <span
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style="font-style: italic;">"inProgress"</span>. The script uses again
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a
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meta refresh to handle the maximum execution time.<br>
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Typical post actions are setting quotas or adding an user to groups.<br>
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<br>
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A progress bar is shown for the LDAP adding and the module actions to
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give the user a hint how long it will still take.<br>
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</div>
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</div>
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</body>
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</html>
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