changeset 42923:6ccf539aec71

hgweb: fix websub regex flag syntax on Python 3 The `websub` config section for hgweb is broken under Python 3 when using regex flags syntax (ie the optional `i` in the example from `hg help config.websub`: patternname = s/SEARCH_REGEX/REPLACE_EXPRESSION/[i] Flags are pulled out of the specified byte-string using a regular expression, and uppercased. The flags are then iterated over and passed to the `re` module using `re.__dict__[item]`, to get the object attribute of the same name from the `re` module. So on Python 2 if the `il` flags are passed, this transition looks like: `'il'` -> `'IL'` -> `'I'` -> `re.__dict__['I']` -> `re.I` However on Python 3, these are bytes objects. When we iterate over a bytes object in Python 3, instead of getting the individual characters in the string as string objects of length one, we get the integer \ value corresponding to that byte. So the same transition looks like: `b'il'` -> `b'IL'` -> `73` -> `re.__dict__[73]` -> `KeyError` This commit fixes the type mismatch by converting the bytes to a system string before iterating over each element to pass to `re`. The transition will now look like: `b'il'` -> `u'IL'` -> `u'I'` -> `re.__dict__[u'I']` -> `re.I` In addition we expand `test-websub.t` to cover the regex flag case (for both the `websub` section and `interhg`). Differential Revision: https://phab.mercurial-scm.org/D6788
author Connor Sheehan <sheehan@mozilla.com>
date Mon, 09 Sep 2019 13:25:00 -0400
parents f059d6ffcdf0
children a50661567f83
files mercurial/hgweb/webutil.py tests/test-websub.t
diffstat 2 files changed, 5 insertions(+), 3 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/hgweb/webutil.py	Mon Sep 09 17:26:17 2019 -0400
+++ b/mercurial/hgweb/webutil.py	Mon Sep 09 13:25:00 2019 -0400
@@ -791,7 +791,7 @@
         flagin = match.group(3)
         flags = 0
         if flagin:
-            for flag in flagin.upper():
+            for flag in pycompat.sysstr(flagin.upper()):
                 flags |= re.__dict__[flag]
 
         try:
--- a/tests/test-websub.t	Mon Sep 09 17:26:17 2019 -0400
+++ b/tests/test-websub.t	Mon Sep 09 13:25:00 2019 -0400
@@ -11,16 +11,18 @@
   > 
   > [websub]
   > issues = s|Issue(\d+)|<a href="http://bts.example.org/issue\1">Issue\1</a>|
+  > tickets = s|ticket(\d+)|<a href="http://ticket.example.org/issue\1">Ticket\1</a>|i
   > 
   > [interhg]
   > # check that we maintain some interhg backwards compatibility...
   > # yes, 'x' is a weird delimiter...
   > markbugs = sxbugx<i class="\x">bug</i>x
+  > problems = sxPROBLEMx<i class="\x">problem</i>xi
   > EOF
 
   $ touch foo
   $ hg add foo
-  $ hg commit -d '1 0' -m 'Issue123: fixed the bug!'
+  $ hg commit -d '1 0' -m 'Issue123: fixed the bug! Ticket456 and problem789 too'
 
   $ hg serve -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
   $ cat hg.pid >> $DAEMON_PIDS
@@ -28,7 +30,7 @@
 log
 
   $ get-with-headers.py localhost:$HGPORT "rev/tip" | grep bts
-  <div class="description"><a href="http://bts.example.org/issue123">Issue123</a>: fixed the <i class="x">bug</i>!</div>
+  <div class="description"><a href="http://bts.example.org/issue123">Issue123</a>: fixed the <i class="x">bug</i>! <a href="http://ticket.example.org/issue456">Ticket456</a> and <i class="x">problem</i>789 too</div>
 errors
 
   $ cat errors.log