Cookie() — netty Function Reference

Architecture documentation for the Cookie() function in ClientCookieDecoder.java from the netty codebase.

Function java ProtocolCodecs HTTP calls 2

Entity Profile

ProtocolCodecs→ HTTP→ Cookie() — netty Function Reference

Dependency Diagram

graph TD
  c93972ed_7edc_39c6_c802_7e2823875549["Cookie()"]
  5cceca96_9ac8_6942_9ebd_814142e85ca4["ClientCookieDecoder"]
  c93972ed_7edc_39c6_c802_7e2823875549 -->|defined in| 5cceca96_9ac8_6942_9ebd_814142e85ca4
  55d2cd63_4655_a8ee_58d0_4380da9e0f03["CookieBuilder()"]
  c93972ed_7edc_39c6_c802_7e2823875549 -->|calls| 55d2cd63_4655_a8ee_58d0_4380da9e0f03
  d60cac5a_e112_2a4d_8085_70466b0f5c5d["appendAttribute()"]
  c93972ed_7edc_39c6_c802_7e2823875549 -->|calls| d60cac5a_e112_2a4d_8085_70466b0f5c5d
  style c93972ed_7edc_39c6_c802_7e2823875549 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http/src/main/java/io/netty/handler/codec/http/cookie/ClientCookieDecoder.java lines 55–145

    public Cookie decode(String header) {
        final int headerLen = checkNotNull(header, "header").length();

        if (headerLen == 0) {
            return null;
        }

        CookieBuilder cookieBuilder = null;

        loop: for (int i = 0;;) {

            // Skip spaces and separators.
            for (;;) {
                if (i == headerLen) {
                    break loop;
                }
                char c = header.charAt(i);
                if (c == ',') {
                    // Having multiple cookies in a single Set-Cookie header is
                    // deprecated, modern browsers only parse the first one
                    break loop;

                } else if (c == '\t' || c == '\n' || c == 0x0b || c == '\f'
                        || c == '\r' || c == ' ' || c == ';') {
                    i++;
                    continue;
                }
                break;
            }

            int nameBegin = i;
            int nameEnd;
            int valueBegin;
            int valueEnd;

            for (;;) {
                char curChar = header.charAt(i);
                if (curChar == ';') {
                    // NAME; (no value till ';')
                    nameEnd = i;
                    valueBegin = valueEnd = -1;
                    break;

                } else if (curChar == '=') {
                    // NAME=VALUE
                    nameEnd = i;
                    i++;
                    if (i == headerLen) {
                        // NAME= (empty value, i.e. nothing after '=')
                        valueBegin = valueEnd = 0;
                        break;
                    }

                    valueBegin = i;
                    // NAME=VALUE;
                    int semiPos = header.indexOf(';', i);
                    valueEnd = i = semiPos > 0 ? semiPos : headerLen;
                    break;
                } else {
                    i++;
                }

                if (i == headerLen) {
                    // NAME (no value till the end of string)
                    nameEnd = headerLen;
                    valueBegin = valueEnd = -1;
                    break;
                }
            }

            if (valueEnd > 0 && header.charAt(valueEnd - 1) == ',') {
                // old multiple cookies separator, skipping it
                valueEnd--;
            }

            if (cookieBuilder == null) {
                // cookie name-value pair
                DefaultCookie cookie = initCookie(header, nameBegin, nameEnd, valueBegin, valueEnd);

                if (cookie == null) {
                    return null;