uTools-Manuals/docs/php/ssh2_fingerprint.html
2019-04-08 23:22:26 +08:00

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<title>Retrieve fingerprint of remote server</title>
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<div id="layout-content"><div id="function.ssh2-fingerprint" class="refentry">
<div class="refnamediv">
<h1 class="refname">ssh2_fingerprint</h1>
<p class="verinfo">(PECL ssh2 &gt;= 0.9.0)</p><p class="refpurpose"><span class="refname">ssh2_fingerprint</span> &mdash; <span class="dc-title">Retrieve fingerprint of remote server</span></p>
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<div class="refsect1 description" id="refsect1-function.ssh2-fingerprint-description">
<h3 class="title">说明</h3>
<div class="methodsynopsis dc-description">
<span class="methodname"><strong>ssh2_fingerprint</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$session</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$flags</code><span class="initializer"> = SSH2_FINGERPRINT_MD5 | SSH2_FINGERPRINT_HEX</span></span>
] ) : <span class="type">string</span></div>
<p class="para rdfs-comment">
Returns a server hostkey hash from an active session.
</p>
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<div class="refsect1 parameters" id="refsect1-function.ssh2-fingerprint-parameters">
<h3 class="title">参数</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">session</code></dt>
<dd>
<p class="para">
An SSH connection link identifier, obtained from a call to
<span class="function"><a href="ssh2_connect.html" class="function">ssh2_connect()</a></span>.
</p>
</dd>
<dt>
<code class="parameter">flags</code></dt>
<dd>
<p class="para">
<code class="parameter">flags</code> may be either of
<strong><code>SSH2_FINGERPRINT_MD5</code></strong> or
<strong><code>SSH2_FINGERPRINT_SHA1</code></strong> logically ORed with
<strong><code>SSH2_FINGERPRINT_HEX</code></strong> or
<strong><code>SSH2_FINGERPRINT_RAW</code></strong>.
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.ssh2-fingerprint-returnvalues">
<h3 class="title">返回值</h3>
<p class="para">
Returns the hostkey hash as a string.
</p>
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<div class="refsect1 examples" id="refsect1-function.ssh2-fingerprint-examples">
<h3 class="title">范例</h3>
<p class="para">
<div class="example" id="example-5618">
<p><strong>Example #1 Checking the fingerprint against a known value</strong></p>
<div class="example-contents">
<div class="phpcode"><pre><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$known_host&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">'6F89C2F0A719B30CC38ABDF90755F2E4'</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$connection&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">ssh2_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'shell.example.com'</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">22</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$fingerprint&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">ssh2_fingerprint</span><span style="color: #007700">(</span><span style="color: #0000BB">$connection</span><span style="color: #007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">SSH2_FINGERPRINT_MD5&nbsp;</span><span style="color: #007700">|&nbsp;</span><span style="color: #0000BB">SSH2_FINGERPRINT_HEX</span><span style="color: #007700">);<br /><br />if&nbsp;(</span><span style="color: #0000BB">$fingerprint&nbsp;</span><span style="color: #007700">!=&nbsp;</span><span style="color: #0000BB">$known_host</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;die(</span><span style="color: #DD0000">"HOSTKEY&nbsp;MISMATCH!\n"&nbsp;</span><span style="color: #007700">.<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #DD0000">"Possible&nbsp;Man-In-The-Middle&nbsp;Attack?"</span><span style="color: #007700">);<br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</pre></div>
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