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-rw-r--r--ext/cgi/escape/depend175
-rw-r--r--ext/cgi/escape/escape.c487
-rw-r--r--ext/cgi/escape/extconf.rb7
3 files changed, 669 insertions, 0 deletions
diff --git a/ext/cgi/escape/depend b/ext/cgi/escape/depend
new file mode 100644
index 0000000000..05b59bfdea
--- /dev/null
+++ b/ext/cgi/escape/depend
@@ -0,0 +1,175 @@
+# AUTOGENERATED DEPENDENCIES START
+escape.o: $(RUBY_EXTCONF_H)
+escape.o: $(arch_hdrdir)/ruby/config.h
+escape.o: $(hdrdir)/ruby.h
+escape.o: $(hdrdir)/ruby/assert.h
+escape.o: $(hdrdir)/ruby/backward.h
+escape.o: $(hdrdir)/ruby/backward/2/assume.h
+escape.o: $(hdrdir)/ruby/backward/2/attributes.h
+escape.o: $(hdrdir)/ruby/backward/2/bool.h
+escape.o: $(hdrdir)/ruby/backward/2/inttypes.h
+escape.o: $(hdrdir)/ruby/backward/2/limits.h
+escape.o: $(hdrdir)/ruby/backward/2/long_long.h
+escape.o: $(hdrdir)/ruby/backward/2/stdalign.h
+escape.o: $(hdrdir)/ruby/backward/2/stdarg.h
+escape.o: $(hdrdir)/ruby/defines.h
+escape.o: $(hdrdir)/ruby/encoding.h
+escape.o: $(hdrdir)/ruby/intern.h
+escape.o: $(hdrdir)/ruby/internal/abi.h
+escape.o: $(hdrdir)/ruby/internal/anyargs.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/char.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/double.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/fixnum.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/gid_t.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/int.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/intptr_t.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/long.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/long_long.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/mode_t.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/off_t.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/pid_t.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/short.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/size_t.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/st_data_t.h
+escape.o: $(hdrdir)/ruby/internal/arithmetic/uid_t.h
+escape.o: $(hdrdir)/ruby/internal/assume.h
+escape.o: $(hdrdir)/ruby/internal/attr/alloc_size.h
+escape.o: $(hdrdir)/ruby/internal/attr/artificial.h
+escape.o: $(hdrdir)/ruby/internal/attr/cold.h
+escape.o: $(hdrdir)/ruby/internal/attr/const.h
+escape.o: $(hdrdir)/ruby/internal/attr/constexpr.h
+escape.o: $(hdrdir)/ruby/internal/attr/deprecated.h
+escape.o: $(hdrdir)/ruby/internal/attr/diagnose_if.h
+escape.o: $(hdrdir)/ruby/internal/attr/enum_extensibility.h
+escape.o: $(hdrdir)/ruby/internal/attr/error.h
+escape.o: $(hdrdir)/ruby/internal/attr/flag_enum.h
+escape.o: $(hdrdir)/ruby/internal/attr/forceinline.h
+escape.o: $(hdrdir)/ruby/internal/attr/format.h
+escape.o: $(hdrdir)/ruby/internal/attr/maybe_unused.h
+escape.o: $(hdrdir)/ruby/internal/attr/noalias.h
+escape.o: $(hdrdir)/ruby/internal/attr/nodiscard.h
+escape.o: $(hdrdir)/ruby/internal/attr/noexcept.h
+escape.o: $(hdrdir)/ruby/internal/attr/noinline.h
+escape.o: $(hdrdir)/ruby/internal/attr/nonnull.h
+escape.o: $(hdrdir)/ruby/internal/attr/noreturn.h
+escape.o: $(hdrdir)/ruby/internal/attr/packed_struct.h
+escape.o: $(hdrdir)/ruby/internal/attr/pure.h
+escape.o: $(hdrdir)/ruby/internal/attr/restrict.h
+escape.o: $(hdrdir)/ruby/internal/attr/returns_nonnull.h
+escape.o: $(hdrdir)/ruby/internal/attr/warning.h
+escape.o: $(hdrdir)/ruby/internal/attr/weakref.h
+escape.o: $(hdrdir)/ruby/internal/cast.h
+escape.o: $(hdrdir)/ruby/internal/compiler_is.h
+escape.o: $(hdrdir)/ruby/internal/compiler_is/apple.h
+escape.o: $(hdrdir)/ruby/internal/compiler_is/clang.h
+escape.o: $(hdrdir)/ruby/internal/compiler_is/gcc.h
+escape.o: $(hdrdir)/ruby/internal/compiler_is/intel.h
+escape.o: $(hdrdir)/ruby/internal/compiler_is/msvc.h
+escape.o: $(hdrdir)/ruby/internal/compiler_is/sunpro.h
+escape.o: $(hdrdir)/ruby/internal/compiler_since.h
+escape.o: $(hdrdir)/ruby/internal/config.h
+escape.o: $(hdrdir)/ruby/internal/constant_p.h
+escape.o: $(hdrdir)/ruby/internal/core.h
+escape.o: $(hdrdir)/ruby/internal/core/rarray.h
+escape.o: $(hdrdir)/ruby/internal/core/rbasic.h
+escape.o: $(hdrdir)/ruby/internal/core/rbignum.h
+escape.o: $(hdrdir)/ruby/internal/core/rclass.h
+escape.o: $(hdrdir)/ruby/internal/core/rdata.h
+escape.o: $(hdrdir)/ruby/internal/core/rfile.h
+escape.o: $(hdrdir)/ruby/internal/core/rhash.h
+escape.o: $(hdrdir)/ruby/internal/core/robject.h
+escape.o: $(hdrdir)/ruby/internal/core/rregexp.h
+escape.o: $(hdrdir)/ruby/internal/core/rstring.h
+escape.o: $(hdrdir)/ruby/internal/core/rstruct.h
+escape.o: $(hdrdir)/ruby/internal/core/rtypeddata.h
+escape.o: $(hdrdir)/ruby/internal/ctype.h
+escape.o: $(hdrdir)/ruby/internal/dllexport.h
+escape.o: $(hdrdir)/ruby/internal/dosish.h
+escape.o: $(hdrdir)/ruby/internal/encoding/coderange.h
+escape.o: $(hdrdir)/ruby/internal/encoding/ctype.h
+escape.o: $(hdrdir)/ruby/internal/encoding/encoding.h
+escape.o: $(hdrdir)/ruby/internal/encoding/pathname.h
+escape.o: $(hdrdir)/ruby/internal/encoding/re.h
+escape.o: $(hdrdir)/ruby/internal/encoding/sprintf.h
+escape.o: $(hdrdir)/ruby/internal/encoding/string.h
+escape.o: $(hdrdir)/ruby/internal/encoding/symbol.h
+escape.o: $(hdrdir)/ruby/internal/encoding/transcode.h
+escape.o: $(hdrdir)/ruby/internal/error.h
+escape.o: $(hdrdir)/ruby/internal/eval.h
+escape.o: $(hdrdir)/ruby/internal/event.h
+escape.o: $(hdrdir)/ruby/internal/fl_type.h
+escape.o: $(hdrdir)/ruby/internal/gc.h
+escape.o: $(hdrdir)/ruby/internal/glob.h
+escape.o: $(hdrdir)/ruby/internal/globals.h
+escape.o: $(hdrdir)/ruby/internal/has/attribute.h
+escape.o: $(hdrdir)/ruby/internal/has/builtin.h
+escape.o: $(hdrdir)/ruby/internal/has/c_attribute.h
+escape.o: $(hdrdir)/ruby/internal/has/cpp_attribute.h
+escape.o: $(hdrdir)/ruby/internal/has/declspec_attribute.h
+escape.o: $(hdrdir)/ruby/internal/has/extension.h
+escape.o: $(hdrdir)/ruby/internal/has/feature.h
+escape.o: $(hdrdir)/ruby/internal/has/warning.h
+escape.o: $(hdrdir)/ruby/internal/intern/array.h
+escape.o: $(hdrdir)/ruby/internal/intern/bignum.h
+escape.o: $(hdrdir)/ruby/internal/intern/class.h
+escape.o: $(hdrdir)/ruby/internal/intern/compar.h
+escape.o: $(hdrdir)/ruby/internal/intern/complex.h
+escape.o: $(hdrdir)/ruby/internal/intern/cont.h
+escape.o: $(hdrdir)/ruby/internal/intern/dir.h
+escape.o: $(hdrdir)/ruby/internal/intern/enum.h
+escape.o: $(hdrdir)/ruby/internal/intern/enumerator.h
+escape.o: $(hdrdir)/ruby/internal/intern/error.h
+escape.o: $(hdrdir)/ruby/internal/intern/eval.h
+escape.o: $(hdrdir)/ruby/internal/intern/file.h
+escape.o: $(hdrdir)/ruby/internal/intern/hash.h
+escape.o: $(hdrdir)/ruby/internal/intern/io.h
+escape.o: $(hdrdir)/ruby/internal/intern/load.h
+escape.o: $(hdrdir)/ruby/internal/intern/marshal.h
+escape.o: $(hdrdir)/ruby/internal/intern/numeric.h
+escape.o: $(hdrdir)/ruby/internal/intern/object.h
+escape.o: $(hdrdir)/ruby/internal/intern/parse.h
+escape.o: $(hdrdir)/ruby/internal/intern/proc.h
+escape.o: $(hdrdir)/ruby/internal/intern/process.h
+escape.o: $(hdrdir)/ruby/internal/intern/random.h
+escape.o: $(hdrdir)/ruby/internal/intern/range.h
+escape.o: $(hdrdir)/ruby/internal/intern/rational.h
+escape.o: $(hdrdir)/ruby/internal/intern/re.h
+escape.o: $(hdrdir)/ruby/internal/intern/ruby.h
+escape.o: $(hdrdir)/ruby/internal/intern/select.h
+escape.o: $(hdrdir)/ruby/internal/intern/select/largesize.h
+escape.o: $(hdrdir)/ruby/internal/intern/set.h
+escape.o: $(hdrdir)/ruby/internal/intern/signal.h
+escape.o: $(hdrdir)/ruby/internal/intern/sprintf.h
+escape.o: $(hdrdir)/ruby/internal/intern/string.h
+escape.o: $(hdrdir)/ruby/internal/intern/struct.h
+escape.o: $(hdrdir)/ruby/internal/intern/thread.h
+escape.o: $(hdrdir)/ruby/internal/intern/time.h
+escape.o: $(hdrdir)/ruby/internal/intern/variable.h
+escape.o: $(hdrdir)/ruby/internal/intern/vm.h
+escape.o: $(hdrdir)/ruby/internal/interpreter.h
+escape.o: $(hdrdir)/ruby/internal/iterator.h
+escape.o: $(hdrdir)/ruby/internal/memory.h
+escape.o: $(hdrdir)/ruby/internal/method.h
+escape.o: $(hdrdir)/ruby/internal/module.h
+escape.o: $(hdrdir)/ruby/internal/newobj.h
+escape.o: $(hdrdir)/ruby/internal/scan_args.h
+escape.o: $(hdrdir)/ruby/internal/special_consts.h
+escape.o: $(hdrdir)/ruby/internal/static_assert.h
+escape.o: $(hdrdir)/ruby/internal/stdalign.h
+escape.o: $(hdrdir)/ruby/internal/stdbool.h
+escape.o: $(hdrdir)/ruby/internal/stdckdint.h
+escape.o: $(hdrdir)/ruby/internal/symbol.h
+escape.o: $(hdrdir)/ruby/internal/value.h
+escape.o: $(hdrdir)/ruby/internal/value_type.h
+escape.o: $(hdrdir)/ruby/internal/variable.h
+escape.o: $(hdrdir)/ruby/internal/warning_push.h
+escape.o: $(hdrdir)/ruby/internal/xmalloc.h
+escape.o: $(hdrdir)/ruby/missing.h
+escape.o: $(hdrdir)/ruby/onigmo.h
+escape.o: $(hdrdir)/ruby/oniguruma.h
+escape.o: $(hdrdir)/ruby/ruby.h
+escape.o: $(hdrdir)/ruby/st.h
+escape.o: $(hdrdir)/ruby/subst.h
+escape.o: escape.c
+# AUTOGENERATED DEPENDENCIES END
diff --git a/ext/cgi/escape/escape.c b/ext/cgi/escape/escape.c
new file mode 100644
index 0000000000..4773186603
--- /dev/null
+++ b/ext/cgi/escape/escape.c
@@ -0,0 +1,487 @@
+#include "ruby.h"
+#include "ruby/encoding.h"
+
+RUBY_EXTERN unsigned long ruby_scan_digits(const char *str, ssize_t len, int base, size_t *retlen, int *overflow);
+RUBY_EXTERN const char ruby_hexdigits[];
+RUBY_EXTERN const signed char ruby_digit36_to_number_table[];
+#define lower_hexdigits (ruby_hexdigits+0)
+#define upper_hexdigits (ruby_hexdigits+16)
+#define char_to_number(c) ruby_digit36_to_number_table[(unsigned char)(c)]
+
+static VALUE rb_cCGI, rb_mEscape, rb_mEscapeExt;
+static ID id_accept_charset;
+
+#define HTML_ESCAPE_MAX_LEN 6
+
+static const struct {
+ uint8_t len;
+ char str[HTML_ESCAPE_MAX_LEN+1];
+} html_escape_table[UCHAR_MAX+1] = {
+#define HTML_ESCAPE(c, str) [c] = {rb_strlen_lit(str), str}
+ HTML_ESCAPE('\'', "'"),
+ HTML_ESCAPE('&', "&"),
+ HTML_ESCAPE('"', """),
+ HTML_ESCAPE('<', "&lt;"),
+ HTML_ESCAPE('>', "&gt;"),
+#undef HTML_ESCAPE
+};
+
+static inline void
+preserve_original_state(VALUE orig, VALUE dest)
+{
+ rb_enc_associate(dest, rb_enc_get(orig));
+}
+
+static inline long
+escaped_length(VALUE str)
+{
+ const long len = RSTRING_LEN(str);
+ if (len >= LONG_MAX / HTML_ESCAPE_MAX_LEN) {
+ ruby_malloc_size_overflow(len, HTML_ESCAPE_MAX_LEN);
+ }
+ return len * HTML_ESCAPE_MAX_LEN;
+}
+
+static VALUE
+optimized_escape_html(VALUE str)
+{
+ VALUE escaped;
+ VALUE vbuf;
+ char *buf = ALLOCV_N(char, vbuf, escaped_length(str));
+ const char *cstr = RSTRING_PTR(str);
+ const char *end = cstr + RSTRING_LEN(str);
+
+ char *dest = buf;
+ while (cstr < end) {
+ const unsigned char c = *cstr++;
+ uint8_t len = html_escape_table[c].len;
+ if (len) {
+ memcpy(dest, html_escape_table[c].str, len);
+ dest += len;
+ }
+ else {
+ *dest++ = c;
+ }
+ }
+
+ if (RSTRING_LEN(str) < (dest - buf)) {
+ escaped = rb_str_new(buf, dest - buf);
+ preserve_original_state(str, escaped);
+ }
+ else {
+ escaped = rb_str_dup(str);
+ }
+ ALLOCV_END(vbuf);
+ return escaped;
+}
+
+static VALUE
+optimized_unescape_html(VALUE str)
+{
+ enum {UNICODE_MAX = 0x10ffff};
+ rb_encoding *enc = rb_enc_get(str);
+ unsigned long charlimit = (strcasecmp(rb_enc_name(enc), "UTF-8") == 0 ? UNICODE_MAX :
+ strcasecmp(rb_enc_name(enc), "ISO-8859-1") == 0 ? 256 :
+ 128);
+ long i, j, len, beg = 0;
+ size_t clen, plen;
+ int overflow;
+ const char *cstr;
+ char buf[6];
+ VALUE dest = 0;
+
+ len = RSTRING_LEN(str);
+ cstr = RSTRING_PTR(str);
+
+ for (i = 0; i < len; i++) {
+ unsigned long cc;
+ char c = cstr[i];
+ if (c != '&') continue;
+ plen = i - beg;
+ if (++i >= len) break;
+ c = (unsigned char)cstr[i];
+ j = i;
+#define MATCH(s) (len - i >= (int)rb_strlen_lit(s) && \
+ memcmp(&cstr[i], s, rb_strlen_lit(s)) == 0 && \
+ (i += rb_strlen_lit(s) - 1, 1))
+ switch (c) {
+ case 'a':
+ ++i;
+ if (MATCH("pos;")) {
+ c = '\'';
+ }
+ else if (MATCH("mp;")) {
+ c = '&';
+ }
+ else {
+ i = j;
+ continue;
+ }
+ break;
+ case 'q':
+ ++i;
+ if (MATCH("uot;")) {
+ c = '"';
+ }
+ else {
+ i = j;
+ continue;
+ }
+ break;
+ case 'g':
+ ++i;
+ if (MATCH("t;")) {
+ c = '>';
+ }
+ else {
+ i = j;
+ continue;
+ }
+ break;
+ case 'l':
+ ++i;
+ if (MATCH("t;")) {
+ c = '<';
+ }
+ else {
+ i = j;
+ continue;
+ }
+ break;
+ case '#':
+ if (len - ++i >= 2 && ISDIGIT(cstr[i])) {
+ cc = ruby_scan_digits(&cstr[i], len-i, 10, &clen, &overflow);
+ }
+ else if ((cstr[i] == 'x' || cstr[i] == 'X') && len - ++i >= 2 && ISXDIGIT(cstr[i])) {
+ cc = ruby_scan_digits(&cstr[i], len-i, 16, &clen, &overflow);
+ }
+ else {
+ i = j;
+ continue;
+ }
+ i += clen;
+ if (overflow || cc >= charlimit || cstr[i] != ';') {
+ i = j;
+ continue;
+ }
+ if (!dest) {
+ dest = rb_str_buf_new(len);
+ }
+ rb_str_cat(dest, cstr + beg, plen);
+ if (charlimit > 256) {
+ rb_str_cat(dest, buf, rb_enc_mbcput((OnigCodePoint)cc, buf, enc));
+ }
+ else {
+ c = (unsigned char)cc;
+ rb_str_cat(dest, &c, 1);
+ }
+ beg = i + 1;
+ continue;
+ default:
+ --i;
+ continue;
+ }
+ if (!dest) {
+ dest = rb_str_buf_new(len);
+ }
+ rb_str_cat(dest, cstr + beg, plen);
+ rb_str_cat(dest, &c, 1);
+ beg = i + 1;
+ }
+
+ if (dest) {
+ rb_str_cat(dest, cstr + beg, len - beg);
+ preserve_original_state(str, dest);
+ return dest;
+ }
+ else {
+ return rb_str_dup(str);
+ }
+}
+
+static unsigned char
+url_unreserved_char(unsigned char c)
+{
+ switch (c) {
+ case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g': case 'h': case 'i': case 'j':
+ case 'k': case 'l': case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': case 's': case 't':
+ case 'u': case 'v': case 'w': case 'x': case 'y': case 'z':
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G': case 'H': case 'I': case 'J':
+ case 'K': case 'L': case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T':
+ case 'U': case 'V': case 'W': case 'X': case 'Y': case 'Z':
+ case '-': case '.': case '_': case '~':
+ return 1;
+ default:
+ break;
+ }
+ return 0;
+}
+
+static VALUE
+optimized_escape(VALUE str, int plus_escape)
+{
+ long i, len, beg = 0;
+ VALUE dest = 0;
+ const char *cstr;
+ char buf[4] = {'%'};
+
+ len = RSTRING_LEN(str);
+ cstr = RSTRING_PTR(str);
+
+ for (i = 0; i < len; ++i) {
+ const unsigned char c = (unsigned char)cstr[i];
+ if (!url_unreserved_char(c)) {
+ if (!dest) {
+ dest = rb_str_buf_new(len);
+ }
+
+ rb_str_cat(dest, cstr + beg, i - beg);
+ beg = i + 1;
+
+ if (plus_escape && c == ' ') {
+ rb_str_cat_cstr(dest, "+");
+ }
+ else {
+ buf[1] = upper_hexdigits[(c >> 4) & 0xf];
+ buf[2] = upper_hexdigits[c & 0xf];
+ rb_str_cat(dest, buf, 3);
+ }
+ }
+ }
+
+ if (dest) {
+ rb_str_cat(dest, cstr + beg, len - beg);
+ preserve_original_state(str, dest);
+ return dest;
+ }
+ else {
+ return rb_str_dup(str);
+ }
+}
+
+static VALUE
+optimized_unescape(VALUE str, VALUE encoding, int unescape_plus)
+{
+ long i, len, beg = 0;
+ VALUE dest = 0;
+ const char *cstr;
+ rb_encoding *enc = rb_to_encoding(encoding);
+ int cr, origenc, encidx = rb_enc_to_index(enc);
+
+ len = RSTRING_LEN(str);
+ cstr = RSTRING_PTR(str);
+
+ for (i = 0; i < len; ++i) {
+ char buf[1];
+ const char c = cstr[i];
+ int clen = 0;
+ if (c == '%') {
+ if (i + 3 > len) break;
+ if (!ISXDIGIT(cstr[i+1])) continue;
+ if (!ISXDIGIT(cstr[i+2])) continue;
+ buf[0] = ((char_to_number(cstr[i+1]) << 4)
+ | char_to_number(cstr[i+2]));
+ clen = 2;
+ }
+ else if (unescape_plus && c == '+') {
+ buf[0] = ' ';
+ }
+ else {
+ continue;
+ }
+
+ if (!dest) {
+ dest = rb_str_buf_new(len);
+ }
+
+ rb_str_cat(dest, cstr + beg, i - beg);
+ i += clen;
+ beg = i + 1;
+
+ rb_str_cat(dest, buf, 1);
+ }
+
+ if (dest) {
+ rb_str_cat(dest, cstr + beg, len - beg);
+ preserve_original_state(str, dest);
+ cr = ENC_CODERANGE_UNKNOWN;
+ }
+ else {
+ dest = rb_str_dup(str);
+ cr = ENC_CODERANGE(str);
+ }
+ origenc = rb_enc_get_index(str);
+ if (origenc != encidx) {
+ rb_enc_associate_index(dest, encidx);
+ if (!ENC_CODERANGE_CLEAN_P(rb_enc_str_coderange(dest))) {
+ rb_enc_associate_index(dest, origenc);
+ if (cr != ENC_CODERANGE_UNKNOWN)
+ ENC_CODERANGE_SET(dest, cr);
+ }
+ }
+ return dest;
+}
+
+/*
+ * call-seq:
+ * CGI.escapeHTML(string) -> string
+ *
+ * Returns HTML-escaped string.
+ *
+ */
+static VALUE
+cgiesc_escape_html(VALUE self, VALUE str)
+{
+ StringValue(str);
+
+ if (rb_enc_str_asciicompat_p(str)) {
+ return optimized_escape_html(str);
+ }
+ else {
+ return rb_call_super(1, &str);
+ }
+}
+
+/*
+ * call-seq:
+ * CGI.unescapeHTML(string) -> string
+ *
+ * Returns HTML-unescaped string.
+ *
+ */
+static VALUE
+cgiesc_unescape_html(VALUE self, VALUE str)
+{
+ StringValue(str);
+
+ if (rb_enc_str_asciicompat_p(str)) {
+ return optimized_unescape_html(str);
+ }
+ else {
+ return rb_call_super(1, &str);
+ }
+}
+
+/*
+ * call-seq:
+ * CGI.escape(string) -> string
+ *
+ * Returns URL-escaped string (+application/x-www-form-urlencoded+).
+ *
+ */
+static VALUE
+cgiesc_escape(VALUE self, VALUE str)
+{
+ StringValue(str);
+
+ if (rb_enc_str_asciicompat_p(str)) {
+ return optimized_escape(str, 1);
+ }
+ else {
+ return rb_call_super(1, &str);
+ }
+}
+
+static VALUE
+accept_charset(int argc, VALUE *argv, VALUE self)
+{
+ if (argc > 0)
+ return argv[0];
+ return rb_cvar_get(CLASS_OF(self), id_accept_charset);
+}
+
+/*
+ * call-seq:
+ * CGI.unescape(string, encoding=@@accept_charset) -> string
+ *
+ * Returns URL-unescaped string (+application/x-www-form-urlencoded+).
+ *
+ */
+static VALUE
+cgiesc_unescape(int argc, VALUE *argv, VALUE self)
+{
+ VALUE str = (rb_check_arity(argc, 1, 2), argv[0]);
+
+ StringValue(str);
+
+ if (rb_enc_str_asciicompat_p(str)) {
+ VALUE enc = accept_charset(argc-1, argv+1, self);
+ return optimized_unescape(str, enc, 1);
+ }
+ else {
+ return rb_call_super(argc, argv);
+ }
+}
+
+/*
+ * call-seq:
+ * CGI.escapeURIComponent(string) -> string
+ *
+ * Returns URL-escaped string following RFC 3986.
+ *
+ */
+static VALUE
+cgiesc_escape_uri_component(VALUE self, VALUE str)
+{
+ StringValue(str);
+
+ if (rb_enc_str_asciicompat_p(str)) {
+ return optimized_escape(str, 0);
+ }
+ else {
+ return rb_call_super(1, &str);
+ }
+}
+
+/*
+ * call-seq:
+ * CGI.unescapeURIComponent(string, encoding=@@accept_charset) -> string
+ *
+ * Returns URL-unescaped string following RFC 3986.
+ *
+ */
+static VALUE
+cgiesc_unescape_uri_component(int argc, VALUE *argv, VALUE self)
+{
+ VALUE str = (rb_check_arity(argc, 1, 2), argv[0]);
+
+ StringValue(str);
+
+ if (rb_enc_str_asciicompat_p(str)) {
+ VALUE enc = accept_charset(argc-1, argv+1, self);
+ return optimized_unescape(str, enc, 0);
+ }
+ else {
+ return rb_call_super(argc, argv);
+ }
+}
+
+void
+Init_escape(void)
+{
+#ifdef HAVE_RB_EXT_RACTOR_SAFE
+ rb_ext_ractor_safe(true);
+#endif
+
+ id_accept_charset = rb_intern_const("@@accept_charset");
+ InitVM(escape);
+}
+
+void
+InitVM_escape(void)
+{
+ rb_cCGI = rb_define_class("CGI", rb_cObject);
+ rb_mEscapeExt = rb_define_module_under(rb_cCGI, "EscapeExt");
+ rb_mEscape = rb_define_module_under(rb_cCGI, "Escape");
+ rb_define_method(rb_mEscapeExt, "escapeHTML", cgiesc_escape_html, 1);
+ rb_define_method(rb_mEscapeExt, "unescapeHTML", cgiesc_unescape_html, 1);
+ rb_define_method(rb_mEscapeExt, "escapeURIComponent", cgiesc_escape_uri_component, 1);
+ rb_define_alias(rb_mEscapeExt, "escape_uri_component", "escapeURIComponent");
+ rb_define_method(rb_mEscapeExt, "unescapeURIComponent", cgiesc_unescape_uri_component, -1);
+ rb_define_alias(rb_mEscapeExt, "unescape_uri_component", "unescapeURIComponent");
+ rb_define_method(rb_mEscapeExt, "escape", cgiesc_escape, 1);
+ rb_define_method(rb_mEscapeExt, "unescape", cgiesc_unescape, -1);
+ rb_prepend_module(rb_mEscape, rb_mEscapeExt);
+ rb_extend_object(rb_cCGI, rb_mEscapeExt);
+}
diff --git a/ext/cgi/escape/extconf.rb b/ext/cgi/escape/extconf.rb
new file mode 100644
index 0000000000..73acd89ca8
--- /dev/null
+++ b/ext/cgi/escape/extconf.rb
@@ -0,0 +1,7 @@
+require 'mkmf'
+
+if RUBY_ENGINE == 'truffleruby'
+ File.write("Makefile", dummy_makefile($srcdir).join(""))
+else
+ create_makefile 'cgi/escape'
+end
generated by cgit v1.2.3 (git 2.25.1) at 2026-06-04 17:15:29 +0000