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fix mime.charsetString()

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This commit is contained in:
Pierre Tachoire
2025-12-12 18:00:20 +01:00
parent 26827efe34
commit 42440f1503
4 changed files with 17 additions and 9 deletions
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18
src/browser/mime.zig
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@@ -24,6 +24,7 @@ pub const Mime = struct {
// IANA defines max. charset value length as 40.
// We keep 41 for null-termination since HTML parser expects in this format.
charset: [41]u8 = default_charset,
charset_len: usize = 5,
/// String "UTF-8" continued by null characters.
pub const default_charset = .{ 'U', 'T', 'F', '-', '8' } ++ .{0} ** 36;
@@ -53,7 +54,7 @@ pub const Mime = struct {
other: struct { type: []const u8, sub_type: []const u8 },
};
pub fn contentTypeString(mime: *const Mime) [:0]const u8 {
pub fn contentTypeString(mime: *const Mime) []const u8 {
return switch (mime.content_type) {
.text_xml => "text/xml",
.text_html => "text/html",
@@ -66,8 +67,12 @@ pub const Mime = struct {
}
/// Returns the null-terminated charset value.
pub fn charsetString(mime: *const Mime) [:0]const u8 {
return @ptrCast(&mime.charset);
pub fn charsetStringZ(mime: *const Mime) [:0]const u8 {
return mime.charset[0..mime.charset_len :0];
}
pub fn charsetString(mime: *const Mime) []const u8 {
return mime.charset[0..mime.charset_len];
}
/// Removes quotes of value if quotes are given.
@@ -111,6 +116,7 @@ pub const Mime = struct {
const params = trimLeft(normalized[type_len..]);
var charset: [41]u8 = undefined;
var charset_len: usize = undefined;
var it = std.mem.splitScalar(u8, params, ';');
while (it.next()) |attr| {
@@ -136,6 +142,7 @@ pub const Mime = struct {
@memcpy(charset[0..attribute_value.len], attribute_value);
// Null-terminate right after attribute value.
charset[attribute_value.len] = 0;
charset_len = attribute_value.len;
},
}
}
@@ -143,6 +150,7 @@ pub const Mime = struct {
return .{
.params = params,
.charset = charset,
.charset_len = charset_len,
.content_type = content_type,
};
}
@@ -523,9 +531,9 @@ fn expect(expected: Expectation, input: []const u8) !void {
if (expected.charset) |ec| {
// We remove the null characters for testing purposes here.
try testing.expectEqual(ec, actual.charsetString()[0..ec.len]);
try testing.expectEqual(ec, actual.charsetString());
} else {
const m: Mime = .unknown;
try testing.expectEqual(m.charsetString(), actual.charsetString());
try testing.expectEqual(m.charsetStringZ(), actual.charsetStringZ());
}
}

4
src/browser/page.zig
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@@ -740,14 +740,14 @@ pub const Page = struct {
log.debug(.http, "navigate first chunk", .{ .content_type = mime.content_type, .len = data.len });
self.mode = switch (mime.content_type) {
.text_html => .{ .html = try parser.Parser.init(mime.charsetString()) },
.text_html => .{ .html = try parser.Parser.init(mime.charsetStringZ()) },
.application_json,
.text_javascript,
.text_css,
.text_plain,
=> blk: {
var p = try parser.Parser.init(mime.charsetString());
var p = try parser.Parser.init(mime.charsetStringZ());
try p.process("<html><head><meta charset=\"utf-8\"></head><body><pre>");
break :blk .{ .text = p };
},

2
src/browser/xhr/xhr.zig
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@@ -678,7 +678,7 @@ pub const XMLHttpRequest = struct {
}
var fbs = std.io.fixedBufferStream(self.response_bytes.items);
const doc = parser.documentHTMLParse(fbs.reader(), mime.charsetString()) catch {
const doc = parser.documentHTMLParse(fbs.reader(), mime.charsetStringZ()) catch {
self.response_obj = .{ .Failure = {} };
return;
};

2
src/cdp/domains/network.zig
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@@ -412,7 +412,7 @@ const TransferAsResponseWriter = struct {
try jws.objectField("mimeType");
try jws.write(mime.contentTypeString());
try jws.objectField("charset");
try jws.write(mime.charsetString()[0..]);
try jws.write(mime.charsetString());
}
{