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hgweb: fail if an invalid command was supplied in url path (issue4071)...
hgweb: fail if an invalid command was supplied in url path (issue4071) Traditionally, the way to specify a command for hgweb was to use url query arguments (e.g. "?cmd=batch"). If the command is unknown to hgweb, it gives an error (e.g. "400 no such method: badcmd"). But there's also another way to specify a command: as a url path fragment (e.g. "/graph"). Before, hgweb was made forgiving (looks like it was made in 44c5157474e7) and user could put any unknown command in the url. If hgweb couldn't understand it, it would just silently fall back to the default command, which depends on the actual style (e.g. for paper it's shortlog, for monoblue it's summary). This was inconsistent and was breaking some tools that rely on http status codes (as noted in the issue4071). So this patch changes that behavior to the more consistent one, i.e. hgweb will now return "400 no such method: badcmd". So if some tool was relying on having an invalid command return http status code 200 and also have some information, then it will stop working. That is, if somebody typed foobar when they really meant shortlog (and the user was lucky enough to choose a style where the default command is shortlog too), that fact will now be revealed. Code-wise, the changed if block is only relevant when there's no "?cmd" query parameter (i.e. only when command is specified as a url path fragment), and looks like the removed else branch was there only for falling back to default command. With that removed, the rest of the code works as expected: it looks at the command, and if it's not known, raises a proper ErrorResponse exception with an appropriate message. Evidently, there were no tests that required the old behavior. But, frankly, I don't know any way to tell if anyone actually exploited such forgiving behavior in some in-house tool.

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test-hgweb.t
538 lines | 14.0 KiB | text/troff | Tads3Lexer
$ "$TESTDIR/hghave" serve || exit 80
Some tests for hgweb. Tests static files, plain files and different 404's.
$ hg init test
$ cd test
$ mkdir da
$ echo foo > da/foo
$ echo foo > foo
$ hg ci -Ambase
adding da/foo
adding foo
$ hg serve -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
$ cat hg.pid >> $DAEMON_PIDS
manifest
$ ("$TESTDIR/get-with-headers.py" localhost:$HGPORT 'file/tip/?style=raw')
200 Script output follows
drwxr-xr-x da
-rw-r--r-- 4 foo
$ ("$TESTDIR/get-with-headers.py" localhost:$HGPORT 'file/tip/da?style=raw')
200 Script output follows
-rw-r--r-- 4 foo
plain file
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'file/tip/foo?style=raw'
200 Script output follows
foo
should give a 404 - static file that does not exist
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'static/bogus'
404 Not Found
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">
<head>
<link rel="icon" href="/static/hgicon.png" type="image/png" />
<meta name="robots" content="index, nofollow" />
<link rel="stylesheet" href="/static/style-paper.css" type="text/css" />
<script type="text/javascript" src="/static/mercurial.js"></script>
<title>test: error</title>
</head>
<body>
<div class="container">
<div class="menu">
<div class="logo">
<a href="http://mercurial.selenic.com/">
<img src="/static/hglogo.png" width=75 height=90 border=0 alt="mercurial" /></a>
</div>
<ul>
<li><a href="/shortlog">log</a></li>
<li><a href="/graph">graph</a></li>
<li><a href="/tags">tags</a></li>
<li><a href="/bookmarks">bookmarks</a></li>
<li><a href="/branches">branches</a></li>
</ul>
<ul>
<li><a href="/help">help</a></li>
</ul>
</div>
<div class="main">
<h2 class="breadcrumb"><a href="/">Mercurial</a> </h2>
<h3>error</h3>
<form class="search" action="/log">
<p><input name="rev" id="search1" type="text" size="30"></p>
<div id="hint">Find changesets by keywords (author, files, the commit message), revision
number or hash, or <a href="/help/revsets">revset expression</a>.</div>
</form>
<div class="description">
<p>
An error occurred while processing your request:
</p>
<p>
Not Found
</p>
</div>
</div>
</div>
<script type="text/javascript">process_dates()</script>
</body>
</html>
[1]
should give a 404 - bad revision
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'file/spam/foo?style=raw'
404 Not Found
error: revision not found: spam
[1]
should give a 400 - bad command
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'file/tip/foo?cmd=spam&style=raw'
400* (glob)
error: no such method: spam
[1]
$ "$TESTDIR/get-with-headers.py" --headeronly localhost:$HGPORT '?cmd=spam'
400 no such method: spam
[1]
should give a 400 - bad command as a part of url path (issue4071)
$ "$TESTDIR/get-with-headers.py" --headeronly localhost:$HGPORT 'spam'
400 no such method: spam
[1]
$ "$TESTDIR/get-with-headers.py" --headeronly localhost:$HGPORT 'raw-spam'
400 no such method: spam
[1]
$ "$TESTDIR/get-with-headers.py" --headeronly localhost:$HGPORT 'spam/tip/foo'
400 no such method: spam
[1]
should give a 404 - file does not exist
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'file/tip/bork?style=raw'
404 Not Found
error: bork@2ef0ac749a14: not found in manifest
[1]
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'file/tip/bork'
404 Not Found
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">
<head>
<link rel="icon" href="/static/hgicon.png" type="image/png" />
<meta name="robots" content="index, nofollow" />
<link rel="stylesheet" href="/static/style-paper.css" type="text/css" />
<script type="text/javascript" src="/static/mercurial.js"></script>
<title>test: error</title>
</head>
<body>
<div class="container">
<div class="menu">
<div class="logo">
<a href="http://mercurial.selenic.com/">
<img src="/static/hglogo.png" width=75 height=90 border=0 alt="mercurial" /></a>
</div>
<ul>
<li><a href="/shortlog">log</a></li>
<li><a href="/graph">graph</a></li>
<li><a href="/tags">tags</a></li>
<li><a href="/bookmarks">bookmarks</a></li>
<li><a href="/branches">branches</a></li>
</ul>
<ul>
<li><a href="/help">help</a></li>
</ul>
</div>
<div class="main">
<h2 class="breadcrumb"><a href="/">Mercurial</a> </h2>
<h3>error</h3>
<form class="search" action="/log">
<p><input name="rev" id="search1" type="text" size="30"></p>
<div id="hint">Find changesets by keywords (author, files, the commit message), revision
number or hash, or <a href="/help/revsets">revset expression</a>.</div>
</form>
<div class="description">
<p>
An error occurred while processing your request:
</p>
<p>
bork@2ef0ac749a14: not found in manifest
</p>
</div>
</div>
</div>
<script type="text/javascript">process_dates()</script>
</body>
</html>
[1]
$ "$TESTDIR/get-with-headers.py" localhost:$HGPORT 'diff/tip/bork?style=raw'
404 Not Found
error: bork@2ef0ac749a14: not found in manifest
[1]
try bad style
$ ("$TESTDIR/get-with-headers.py" localhost:$HGPORT 'file/tip/?style=foobar')
200 Script output follows
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">
<head>
<link rel="icon" href="/static/hgicon.png" type="image/png" />
<meta name="robots" content="index, nofollow" />
<link rel="stylesheet" href="/static/style-paper.css" type="text/css" />
<script type="text/javascript" src="/static/mercurial.js"></script>
<title>test: 2ef0ac749a14 /</title>
</head>
<body>
<div class="container">
<div class="menu">
<div class="logo">
<a href="http://mercurial.selenic.com/">
<img src="/static/hglogo.png" alt="mercurial" /></a>
</div>
<ul>
<li><a href="/shortlog/2ef0ac749a14">log</a></li>
<li><a href="/graph/2ef0ac749a14">graph</a></li>
<li><a href="/tags">tags</a></li>
<li><a href="/bookmarks">bookmarks</a></li>
<li><a href="/branches">branches</a></li>
</ul>
<ul>
<li><a href="/rev/2ef0ac749a14">changeset</a></li>
<li class="active">browse</li>
</ul>
<ul>
</ul>
<ul>
<li><a href="/help">help</a></li>
</ul>
</div>
<div class="main">
<h2 class="breadcrumb"><a href="/">Mercurial</a> </h2>
<h3>directory / @ 0:2ef0ac749a14 <span class="tag">tip</span> </h3>
<form class="search" action="/log">
<p><input name="rev" id="search1" type="text" size="30" /></p>
<div id="hint">Find changesets by keywords (author, files, the commit message), revision
number or hash, or <a href="/help/revsets">revset expression</a>.</div>
</form>
<table class="bigtable">
<tr>
<th class="name">name</th>
<th class="size">size</th>
<th class="permissions">permissions</th>
</tr>
<tbody class="stripes2">
<tr class="fileline">
<td class="name"><a href="/file/2ef0ac749a14/">[up]</a></td>
<td class="size"></td>
<td class="permissions">drwxr-xr-x</td>
</tr>
<tr class="fileline">
<td class="name">
<a href="/file/2ef0ac749a14/da">
<img src="/static/coal-folder.png" alt="dir."/> da/
</a>
<a href="/file/2ef0ac749a14/da/">
</a>
</td>
<td class="size"></td>
<td class="permissions">drwxr-xr-x</td>
</tr>
<tr class="fileline">
<td class="filename">
<a href="/file/2ef0ac749a14/foo">
<img src="/static/coal-file.png" alt="file"/> foo
</a>
</td>
<td class="size">4</td>
<td class="permissions">-rw-r--r--</td>
</tr>
</tbody>
</table>
</div>
</div>
<script type="text/javascript">process_dates()</script>
</body>
</html>
stop and restart
$ "$TESTDIR/killdaemons.py" $DAEMON_PIDS
$ hg serve -p $HGPORT -d --pid-file=hg.pid -A access.log
$ cat hg.pid >> $DAEMON_PIDS
Test the access/error files are opened in append mode
$ python -c "print len(file('access.log').readlines()), 'log lines written'"
14 log lines written
static file
$ "$TESTDIR/get-with-headers.py" --twice localhost:$HGPORT 'static/style-gitweb.css' - date etag server
200 Script output follows
content-length: 5262
content-type: text/css
body { font-family: sans-serif; font-size: 12px; border:solid #d9d8d1; border-width:1px; margin:10px; }
a { color:#0000cc; }
a:hover, a:visited, a:active { color:#880000; }
div.page_header { height:25px; padding:8px; font-size:18px; font-weight:bold; background-color:#d9d8d1; }
div.page_header a:visited { color:#0000cc; }
div.page_header a:hover { color:#880000; }
div.page_nav { padding:8px; }
div.page_nav a:visited { color:#0000cc; }
div.page_path { padding:8px; border:solid #d9d8d1; border-width:0px 0px 1px}
div.page_footer { padding:4px 8px; background-color: #d9d8d1; }
div.page_footer_text { float:left; color:#555555; font-style:italic; }
div.page_body { padding:8px; }
div.title, a.title {
display:block; padding:6px 8px;
font-weight:bold; background-color:#edece6; text-decoration:none; color:#000000;
}
a.title:hover { background-color: #d9d8d1; }
div.title_text { padding:6px 0px; border: solid #d9d8d1; border-width:0px 0px 1px; }
div.log_body { padding:8px 8px 8px 150px; }
.age { white-space:nowrap; }
span.age { position:relative; float:left; width:142px; font-style:italic; }
div.log_link {
padding:0px 8px;
font-size:10px; font-family:sans-serif; font-style:normal;
position:relative; float:left; width:136px;
}
div.list_head { padding:6px 8px 4px; border:solid #d9d8d1; border-width:1px 0px 0px; font-style:italic; }
a.list { text-decoration:none; color:#000000; }
a.list:hover { text-decoration:underline; color:#880000; }
table { padding:8px 4px; }
th { padding:2px 5px; font-size:12px; text-align:left; }
tr.light:hover, .parity0:hover { background-color:#edece6; }
tr.dark, .parity1 { background-color:#f6f6f0; }
tr.dark:hover, .parity1:hover { background-color:#edece6; }
td { padding:2px 5px; font-size:12px; vertical-align:top; }
td.closed { background-color: #99f; }
td.link { padding:2px 5px; font-family:sans-serif; font-size:10px; }
td.indexlinks { white-space: nowrap; }
td.indexlinks a {
padding: 2px 5px; line-height: 10px;
border: 1px solid;
color: #ffffff; background-color: #7777bb;
border-color: #aaaadd #333366 #333366 #aaaadd;
font-weight: bold; text-align: center; text-decoration: none;
font-size: 10px;
}
td.indexlinks a:hover { background-color: #6666aa; }
div.pre { font-family:monospace; font-size:12px; white-space:pre; }
div.diff_info { font-family:monospace; color:#000099; background-color:#edece6; font-style:italic; }
div.index_include { border:solid #d9d8d1; border-width:0px 0px 1px; padding:12px 8px; }
div.search { margin:4px 8px; position:absolute; top:56px; right:12px }
.linenr { color:#999999; text-decoration:none }
div.rss_logo { float: right; white-space: nowrap; }
div.rss_logo a {
padding:3px 6px; line-height:10px;
border:1px solid; border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e;
color:#ffffff; background-color:#ff6600;
font-weight:bold; font-family:sans-serif; font-size:10px;
text-align:center; text-decoration:none;
}
div.rss_logo a:hover { background-color:#ee5500; }
pre { margin: 0; }
span.logtags span {
padding: 0px 4px;
font-size: 10px;
font-weight: normal;
border: 1px solid;
background-color: #ffaaff;
border-color: #ffccff #ff00ee #ff00ee #ffccff;
}
span.logtags span.tagtag {
background-color: #ffffaa;
border-color: #ffffcc #ffee00 #ffee00 #ffffcc;
}
span.logtags span.branchtag {
background-color: #aaffaa;
border-color: #ccffcc #00cc33 #00cc33 #ccffcc;
}
span.logtags span.inbranchtag {
background-color: #d5dde6;
border-color: #e3ecf4 #9398f4 #9398f4 #e3ecf4;
}
span.logtags span.bookmarktag {
background-color: #afdffa;
border-color: #ccecff #46ace6 #46ace6 #ccecff;
}
/* Graph */
div#wrapper {
position: relative;
margin: 0;
padding: 0;
margin-top: 3px;
}
canvas {
position: absolute;
z-index: 5;
top: -0.9em;
margin: 0;
}
ul#nodebgs {
list-style: none inside none;
padding: 0;
margin: 0;
top: -0.7em;
}
ul#graphnodes li, ul#nodebgs li {
height: 39px;
}
ul#graphnodes {
position: absolute;
z-index: 10;
top: -0.8em;
list-style: none inside none;
padding: 0;
}
ul#graphnodes li .info {
display: block;
font-size: 100%;
position: relative;
top: -3px;
font-style: italic;
}
/* Comparison */
.legend {
padding: 1.5% 0 1.5% 0;
}
.legendinfo {
border: 1px solid #d9d8d1;
font-size: 80%;
text-align: center;
padding: 0.5%;
}
.equal {
background-color: #ffffff;
}
.delete {
background-color: #faa;
color: #333;
}
.insert {
background-color: #ffa;
}
.replace {
background-color: #e8e8e8;
}
.comparison {
overflow-x: auto;
}
.header th {
text-align: center;
}
.block {
border-top: 1px solid #d9d8d1;
}
.scroll-loading {
-webkit-animation: change_color 1s linear 0s infinite alternate;
-moz-animation: change_color 1s linear 0s infinite alternate;
-o-animation: change_color 1s linear 0s infinite alternate;
animation: change_color 1s linear 0s infinite alternate;
}
@-webkit-keyframes change_color {
from { background-color: #A0CEFF; } to { }
}
@-moz-keyframes change_color {
from { background-color: #A0CEFF; } to { }
}
@-o-keyframes change_color {
from { background-color: #A0CEFF; } to { }
}
@keyframes change_color {
from { background-color: #A0CEFF; } to { }
}
.scroll-loading-error {
background-color: #FFCCCC !important;
}
304 Not Modified
errors
$ cat errors.log
$ cd ..