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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/124442/">https://git.reviewboard.kde.org/r/124442/</a>
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<p style="margin-top: 0;">On August 1st, 2015, 10:49 p.m. CEST, <b>Elvis Angelaccio</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/124442/diff/4/?file=388410#file388410line64" style="color: black; font-weight: bold; text-decoration: underline;">kerfuffle/archive_kerfuffle.cpp</a>
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(Diff revision 4)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static bool comparePlugins(const KService::Ptr &p1, const KService::Ptr &p2)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// Compressed tar-archives are detected as single compressed files when</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// detecting by content. The following code prevents tar.gz, tar.bz2 and</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// tar.xz files being opened using the singlefile plugin.</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">((</span><span class="n">mimeFromExtension</span> <span class="o">==</span> <span class="n">db</span><span class="p">.</span><span class="n">mimeTypeForName</span><span class="p">(</span><span class="s">"application/x-compressed-tar"</span><span class="p">)</span> <span class="o">&&</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">mimeFromContent</span> <span class="o">==</span> <span class="n">db</span><span class="p">.</span><span class="n">mimeTypeForName</span><span class="p">(</span><span class="s">"application/gzip"</span><span class="p">))</span> <span class="o">||</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">(</span><span class="n">mimeFromExtension</span> <span class="o">==</span> <span class="n">db</span><span class="p">.</span><span class="n">mimeTypeForName</span><span class="p">(</span><span class="s">"application/x-bzip-compressed-tar"</span><span class="p">)</span> <span class="o">&&</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">mimeFromContent</span> <span class="o">==</span> <span class="n">db</span><span class="p">.</span><span class="n">mimeTypeForName</span><span class="p">(</span><span class="s">"application/x-bzip"</span><span class="p">))</span> <span class="o">||</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">(</span><span class="n">mimeFromExtension</span> <span class="o">==</span> <span class="n">db</span><span class="p">.</span><span class="n">mimeTypeForName</span><span class="p">(</span><span class="s">"application/x-xz-compressed-tar"</span><span class="p">)</span> <span class="o">&&</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">mimeFromContent</span> <span class="o">==</span> <span class="n">db</span><span class="p">.</span><span class="n">mimeTypeForName</span><span class="p">(</span><span class="s">"application/x-xz"</span><span class="p">)))</span> <span class="p">{</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">return</span> <span class="n">mimeFromExtension</span><span class="p">.</span><span class="n">name</span><span class="p">();</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="p">}</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Why the detection is broken for tar archives? Upstream qt bug? This workaround should work in most of the cases, but what if a gzip archive is renamed to .tar.gz? In this case the <code style="text-rendering: inherit;color: #4444cc;padding: 0;white-space: normal;margin: 0;line-height: inherit;">mimeFromExtension</code> would be used and Ark would file to open that archive.</p></pre>
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<p>On August 1st, 2015, 10:52 p.m. CEST, <b>Elvis Angelaccio</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><ul style="padding: 0;text-rendering: inherit;margin: 0 0 0 1em;line-height: inherit;white-space: normal;">
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">would <em style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">fail</em> to open ...</li>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">I don't think it is a bug in Qt. At least <code style="text-rendering: inherit;color: #4444cc;padding: 0;white-space: normal;margin: 0;line-height: inherit;">file --mime-type</code> also presents compressed tars as application/gzip, application/x-bzip or application/x-xz. I guess there's just no way of knowing if a gzipped file contains a tar archive (apart from the extension) without decompressing it, which would be unfeasible for large files.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">You're right that if a gzipped file is renamed to a tar.gz, Ark will attempt to open it using libarchive plugin and fail. But that's no different from what Ark currently does. At least with this patch all other forms of wrongly-named archives should open. I can't see how we can fix this without extracting the file and checking...</p></pre>
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<p>- Ragnar</p>
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<p>On July 29th, 2015, 2:05 p.m. CEST, Ragnar Thomsen wrote:</p>
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<div>Review request for KDE Utils, Elvis Angelaccio and Raphael Kubo da Costa.</div>
<div>By Ragnar Thomsen.</div>
<p style="color: grey;"><i>Updated July 29, 2015, 2:05 p.m.</i></p>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="http://bugs.kde.org/show_bug.cgi?id=101170">101170</a>,
<a href="http://bugs.kde.org/show_bug.cgi?id=265971">265971</a>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
ark
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">This patch improves the mimetype detection when opening archives. Previously, the filename extension had higher priority than file content when determining mimetype. When opening an archive that had a wrong extension (as in bug 265971), this resulted in Ark failing to open it.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">With this patch the mimetype is determined from file content. Additionally, a warning is shown in console output when mimetype from extension and content do not match.</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Opening archives with wrong filename extensions now works as expected.</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>kerfuffle/archive_kerfuffle.cpp <span style="color: grey">(7b9990d)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/124442/diff/" style="margin-left: 3em;">View Diff</a></p>
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