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Merge pull request #463 from mitchellh/osc52-invalid

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core: resiliency to invalid base64 data for OSC 52
This commit is contained in:
Mitchell Hashimoto
2023-09-14 20:33:51 -07:00
committed by GitHub
parent 89e038e42b 70420fe0d6
commit ef9ed48434
1 changed files with 19 additions and 2 deletions
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21
src/Surface.zig
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@ -755,13 +755,30 @@ fn clipboardWrite(self: *const Surface, data: []const u8, loc: apprt.Clipboard)
const dec = std.base64.standard.Decoder;
// Build buffer
const size = try dec.calcSizeForSlice(data);
const size = dec.calcSizeForSlice(data) catch |err| switch (err) {
error.InvalidPadding => {
log.info("application sent invalid base64 data for OSC 52", .{});
return;
},
// Should not be reachable but don't want to risk it.
else => return,
};
var buf = try self.alloc.allocSentinel(u8, size, 0);
defer self.alloc.free(buf);
buf[buf.len] = 0;
// Decode
try dec.decode(buf, data);
dec.decode(buf, data) catch |err| switch (err) {
// Ignore this. It is possible to actually have valid data and
// get this error, so we allow it.
error.InvalidPadding => {},
else => {
log.info("application sent invalid base64 data for OSC 52", .{});
return;
},
};
assert(buf[buf.len] == 0);
self.rt_surface.setClipboardString(buf, loc) catch |err| {