[OE-core] [PATCH] report-error.bbclass: replace angle brackets with < and >

[changqing.li]

From: Changqing Li <changqing...@windriver.com>

when we have below content in local.conf or auto.conf:
BUILDHISTORY_COMMIT_AUTHOR ?= "Khem Raj <raj.k...@gmail.com>"
send-error-report will fail with "HTTP Error 500: OK"

error-report-web do rudimentary check on all fields that are
passed to the graphs page to avoid any XSS happening, if contains
'<', the server will return error(Invalid characters in json).
fixed by use escape of <> to replace it.

NOTE: with this change, error-report-web need to add filter 'safe'
for the string wanted to display to avoid further HTML escaping
prior to output. Below is how the content displayed on webpage:
with the filter 'safe':
BUILDHISTORY_COMMIT_AUTHOR ?= "Khem Raj <raj.k...@gmail.com>"
without the filter 'safe':
BUILDHISTORY_COMMIT_AUTHOR ?= "Khem Raj &lt;raj.k...@gmail.com&gt;"

Another patch for error-report-web will send to yocto mail list.

[YOCTO #13252]

Signed-off-by: Changqing Li <changqing...@windriver.com>
---
 meta/classes/report-error.bbclass | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta/classes/report-error.bbclass 
b/meta/classes/report-error.bbclass
index 1a12db1..6046867 100644
--- a/meta/classes/report-error.bbclass
+++ b/meta/classes/report-error.bbclass
@@ -36,6 +36,7 @@ def get_conf_data(e, filename):
                     continue
                 else:
                     jsonstring=jsonstring + line
+    jsonstring = jsonstring.replace("<", "&lt;").replace(">", "&gt;")
     return jsonstring
 
 python errorreport_handler () {
-- 
2.7.4

-- 
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