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AK: Replace the mutable String::replace API with an immutable version

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This removes the awkward String::replace API which was the only String
API which mutated the String and replaces it with a new immutable
version that returns a new String with the replacements applied. This
also fixes a couple of UAFs that were caused by the use of this API.

As an optimization an equivalent StringView::replace API was also added
to remove an unnecessary String allocations in the format of:
`String { view }.replace(...);`
This commit is contained in:
Idan Horowitz
2021-09-11 02:15:44 +03:00
parent aba4c9579f
commit 6704961c82
26 changed files with 72 additions and 118 deletions
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4
Userland/Libraries/LibIMAP/Objects.cpp
View File

@@ -128,9 +128,7 @@ String serialize_astring(StringView string)
// Try to quote
auto can_be_quoted = !(string.contains('\n') || string.contains('\r'));
if (can_be_quoted) {
auto escaped_str = string.to_string();
escaped_str.replace("\\", "\\\\");
escaped_str.replace("\"", "\\\"");
auto escaped_str = string.replace("\\", "\\\\").replace("\"", "\\\"");
return String::formatted("\"{}\"", escaped_str);
}