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[gnc-plugin-report-system] sanitize error html before adding to page

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The error backtrace usually contains < > characters. eg #<report>
or #<procedure> etc. This commit will sanitize them to HTML entities
so that they may be rendered properly in webkit.
This commit is contained in:
Christopher Lam 2023-04-26 22:11:25 +08:00
parent b7e966d828
commit 5aaedbf7a4
1 changed files with 21 additions and 1 deletions
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22
gnucash/gnome/gnc-plugin-report-system.c
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@ -137,6 +137,24 @@ gnc_report_system_file_stream_cb (const char *location, char ** data, int *len)
return (*len > 0);
}
static char *
html_sanitize (const char *str)
{
GString *gs = g_string_sized_new (strlen (str));
for (const char *c = str; *c; c++)
{
if (*c == '&')
gs = g_string_append (gs, "&amp;");
else if (*c == '<')
gs = g_string_append (gs, "&lt;");
else if (*c == '>')
gs = g_string_append (gs, "&gt;");
else
gs = g_string_append_c (gs, *c);
}
return g_string_free (gs, FALSE);
}
static gboolean
gnc_report_system_report_stream_cb (const char *location, char ** data, int *len)
{
@ -147,12 +165,14 @@ gnc_report_system_report_stream_cb (const char *location, char ** data, int *len
if (!ok)
{
char *sanitized = html_sanitize (captured_str);
*data = g_strdup_printf ("<html><body><h3>%s</h3>"
"<p>%s</p><pre>%s</pre></body></html>",
_("Report error"),
_("An error occurred while running the report."),
captured_str);
sanitized);
g_free (sanitized);
g_free(captured_str);
/* Make sure the progress bar is finished, which will also