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Documentation/Source/eric5.E5Network.E5Ftp.html@5cb87968aad5

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Sat, 29 Sep 2012 18:37:03 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Sat, 29 Sep 2012 18:37:03 +0200
changeset 2074
5cb87968aad5
child 2077
68a34718a0ce
permissions
-rw-r--r--

Reworked the FTP stuff to support a bunch of different FTP proxy types. Unfortunately FTP proxy support is not standardized.

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<h1>eric5.E5Network.E5Ftp</h1>
<p>
Module implementing an extension to the Python FTP class to support FTP proxies.
</p>
<h3>Global Attributes</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Classes</h3>
<table>
<tr>
<td><a href="#E5Ftp">E5Ftp</a></td>
<td>Class implementing an extension to the Python FTP class to support FTP proxies.</td>
</tr><tr>
<td><a href="#E5FtpProxyError">E5FtpProxyError</a></td>
<td>Class to signal an error related to proxy configuration.</td>
</tr><tr>
<td><a href="#E5FtpProxyType">E5FtpProxyType</a></td>
<td>Class defining the supported FTP proxy types.</td>
</tr>
</table>
<h3>Functions</h3>
<table>
<tr><td>None</td></tr>
</table>
<hr /><hr />
<a NAME="E5Ftp" ID="E5Ftp"></a>
<h2>E5Ftp</h2>
<p>
    Class implementing an extension to the Python FTP class to support FTP proxies.
</p>
<h3>Derived from</h3>
ftplib.FTP
<h3>Class Attributes</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Class Methods</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Methods</h3>
<table>
<tr>
<td><a href="#E5Ftp.__init__">E5Ftp</a></td>
<td>Constructor</td>
</tr><tr>
<td><a href="#E5Ftp.connect">connect</a></td>
<td>Public method to connect to the given FTP server.</td>
</tr><tr>
<td><a href="#E5Ftp.login">login</a></td>
<td>Public method to login to the FTP server.</td>
</tr><tr>
<td><a href="#E5Ftp.setProxy">setProxy</a></td>
<td>Public method to set the proxy configuration.</td>
</tr><tr>
<td><a href="#E5Ftp.setProxyAuthentication">setProxyAuthentication</a></td>
<td>Public method to set the proxy authentication info.</td>
</tr>
</table>
<h3>Static Methods</h3>
<table>
<tr><td>None</td></tr>
</table>
<a NAME="E5Ftp.__init__" ID="E5Ftp.__init__"></a>
<h4>E5Ftp (Constructor)</h4>
<b>E5Ftp</b>(<i>host="", user="", password="", acct="", proxyType=E5FtpProxyType.NoProxy, proxyHost="", proxyPort=ftplib.FTP_PORT, proxyUser="", proxyPassword="", proxyAccount="", timeout=_GLOBAL_DEFAULT_TIMEOUT</i>)
<p>
        Constructor
</p><dl>
<dt><i>host</i></dt>
<dd>
name of the FTP host (string)
</dd><dt><i>user</i></dt>
<dd>
user name for login to FTP host (string)
</dd><dt><i>password</i></dt>
<dd>
password for login to FTP host (string)
</dd><dt><i>acct</i></dt>
<dd>
account for login to FTP host (string)
</dd><dt><i>proxyType</i></dt>
<dd>
type of the FTP proxy (integer 0 to 8)
</dd><dt><i>proxyHost</i></dt>
<dd>
name of the FTP proxy (string)
</dd><dt><i>proxyPort</i></dt>
<dd>
port of the FTP proxy (integer)
</dd><dt><i>proxyUser</i></dt>
<dd>
user name for login to the proxy (string)
</dd><dt><i>proxyPassword</i></dt>
<dd>
password for login to the proxy (string)
</dd><dt><i>proxyAccount</i></dt>
<dd>
accounting info for the proxy (string)
</dd><dt><i>timeout</i></dt>
<dd>
timeout in seconds for blocking operations (integer)
</dd>
</dl><a NAME="E5Ftp.connect" ID="E5Ftp.connect"></a>
<h4>E5Ftp.connect</h4>
<b>connect</b>(<i>host="", port=0, timeout=-999</i>)
<p>
        Public method to connect to the given FTP server.
</p><p>
        This extended method connects to the proxy instead of the given host,
        if a proxy is to be used. It throws an exception, if the proxy data
        is incomplete.
</p><dl>
<dt><i>host</i></dt>
<dd>
name of the FTP host (string)
</dd><dt><i>port</i></dt>
<dd>
port of the FTP host (integer)
</dd><dt><i>timeout</i></dt>
<dd>
timeout in seconds for blocking operations (integer)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
welcome message of the server (string)
</dd>
</dl><dl>
<dt>Raises <b>E5FtpProxyError</b>:</dt>
<dd>
raised to indicate a proxy related issue
</dd>
</dl><a NAME="E5Ftp.login" ID="E5Ftp.login"></a>
<h4>E5Ftp.login</h4>
<b>login</b>(<i>user="", password="", acct=""</i>)
<p>
        Public method to login to the FTP server.
</p><p>
        This extended method respects the FTP proxy configuration. There are many
        different FTP proxy products available. But unfortunately there is no
        standard for how o traverse a FTP proxy. The lis below shows the sequence
        of commands used.
</p><p>
        <table>
          <tr><td>user</td><td>Username for remote host</td></tr>
          <tr><td>pass</td><td>Password for remote host</td></tr>
          <tr><td>pruser</td><td>Username for FTP proxy</td></tr>
          <tr><td>prpass</td><td>Password for FTP proxy</td></tr>
          <tr><td>remote.host</td><td>Hostname of the remote FTP server</td></tr>
        </table>
</p><p>
        <dl>
          <dt>E5FtpProxyType.NoProxy</dt>
          <dd>
            USER user<br/>
            PASS pass
          </dd>
          <dt>E5FtpProxyType.NonAuthorizing</dt>
          <dd>
            USER user@remote.host<br/>
            PASS pass
          </dd>
          <dt>E5FtpProxyType.UserAtServer</dt>
          <dd>
            USER pruser<br/>
            PASS prpass<br/>
            USER user@remote.host<br/>
            PASS pass
          </dd>
          <dt>E5FtpProxyType.Site</dt>
          <dd>
            USER pruser<br/>
            PASS prpass<br/>
            SITE remote.site<br/>
            USER user<br/>
            PASS pass
          </dd>
          <dt>E5FtpProxyType.Open</dt>
          <dd>
            USER pruser<br/>
            PASS prpass<br/>
            OPEN remote.site<br/>
            USER user<br/>
            PASS pass
          </dd>
          <dt>E5FtpProxyType.UserAtProxyuserAtServer</dt>
          <dd>
            USER user@pruser@remote.host<br/>
            PASS pass@prpass
          </dd>
          <dt>E5FtpProxyType.ProxyuserAtServer</dt>
          <dd>
            USER pruser@remote.host<br/>
            PASS prpass<br/>
            USER user<br/>
            PASS pass
          </dd>
          <dt>E5FtpProxyType.AuthResp</dt>
          <dd>
            USER user@remote.host<br/>
            PASS pass<br/>
            AUTH pruser<br/>
            RESP prpass
          </dd>
          <dt>E5FtpProxyType.Bluecoat</dt>
          <dd>
            USER user@remote.host pruser<br/>
            PASS pass<br/>
            ACCT prpass
          </dd>
        </dl>
</p><dl>
<dt><i>user</i></dt>
<dd>
username for the remote host (string)
</dd><dt><i>password</i></dt>
<dd>
password for the remote host (string)
</dd><dt><i>acct</i></dt>
<dd>
accounting information for the remote host (string)
</dd>
</dl><dl>
<dt>Returns:</dt>
<dd>
response sent by the remote host (string)
</dd>
</dl><dl>
<dt>Raises <b>E5FtpProxyError</b>:</dt>
<dd>
raised to indicate a proxy related issue
</dd>
</dl><a NAME="E5Ftp.setProxy" ID="E5Ftp.setProxy"></a>
<h4>E5Ftp.setProxy</h4>
<b>setProxy</b>(<i>proxyType=E5FtpProxyType.NoProxy, proxyHost="", proxyPort=ftplib.FTP_PORT, proxyUser="", proxyPassword="", proxyAccount=""</i>)
<p>
        Public method to set the proxy configuration.
</p><dl>
<dt><i>proxyType</i></dt>
<dd>
type of the FTP proxy (integer 0 to 8)
</dd><dt><i>proxyHost</i></dt>
<dd>
name of the FTP proxy (string)
</dd><dt><i>proxyPort</i></dt>
<dd>
port of the FTP proxy (integer)
</dd><dt><i>proxyUser</i></dt>
<dd>
user name for login to the proxy (string)
</dd><dt><i>proxyPassword</i></dt>
<dd>
password  for login to the proxy (string)
</dd><dt><i>proxyAccount</i></dt>
<dd>
accounting info for the proxy (string)
</dd>
</dl><a NAME="E5Ftp.setProxyAuthentication" ID="E5Ftp.setProxyAuthentication"></a>
<h4>E5Ftp.setProxyAuthentication</h4>
<b>setProxyAuthentication</b>(<i>proxyUser="", proxyPassword="", proxyAccount=""</i>)
<p>
        Public method to set the proxy authentication info.
</p><dl>
<dt><i>proxyUser</i></dt>
<dd>
user name for login to the proxy (string)
</dd><dt><i>proxyPassword</i></dt>
<dd>
password  for login to the proxy (string)
</dd><dt><i>proxyAccount</i></dt>
<dd>
accounting info for the proxy (string)
</dd>
</dl>
<div align="right"><a href="#top">Up</a></div>
<hr /><hr />
<a NAME="E5FtpProxyError" ID="E5FtpProxyError"></a>
<h2>E5FtpProxyError</h2>
<p>
    Class to signal an error related to proxy configuration.
</p><p>
    The error message starts with a three digit error code followed by a
    space and the error string. Supported error codes are:
    <ul>
      <li>910: proxy error; the second number gives the category of the proxy error.
          The original response from the proxy is appended in the next line.</li>
      <li>930: proxy error; the second number gives the category of the proxy error.
          The original response from the proxy is appended in the next line.</li>
      <li>940: proxy error; the second number gives the category of the proxy error.
          The original response from the proxy is appended in the next line.</li>
      <li>950: proxy error; the second number gives the category of the proxy error.
          The original response from the proxy is appended in the next line.</li>
      <li>990: proxy usage is enabled but no proxy host given</li>
      <li>991: proxy usage is enabled but no proxy user given</li>
      <li>992: proxy usage is enabled but no proxy password given</li>
    </ul>
</p>
<h3>Derived from</h3>
ftplib.Error
<h3>Class Attributes</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Class Methods</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Methods</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Static Methods</h3>
<table>
<tr><td>None</td></tr>
</table>

<div align="right"><a href="#top">Up</a></div>
<hr /><hr />
<a NAME="E5FtpProxyType" ID="E5FtpProxyType"></a>
<h2>E5FtpProxyType</h2>
<p>
    Class defining the supported FTP proxy types.
</p>
<h3>Derived from</h3>
object
<h3>Class Attributes</h3>
<table>
<tr><td>AuthResp</td></tr><tr><td>Bluecoat</td></tr><tr><td>NoProxy</td></tr><tr><td>NonAuthorizing</td></tr><tr><td>Open</td></tr><tr><td>ProxyuserAtServer</td></tr><tr><td>Site</td></tr><tr><td>UserAtProxyuserAtServer</td></tr><tr><td>UserAtServer</td></tr>
</table>
<h3>Class Methods</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Methods</h3>
<table>
<tr><td>None</td></tr>
</table>
<h3>Static Methods</h3>
<table>
<tr><td>None</td></tr>
</table>

<div align="right"><a href="#top">Up</a></div>
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