+#endif
+ }
+ PHP_HTTP_DUFF(consumed, state->buffer[state->offset++] = *ptr++);
+ } else {
+ int i = 0;
+
+ PHP_HTTP_DUFF(consumed,
+ state->buffer[state->offset++] = '%';
+ state->buffer[state->offset++] = parse_xdigits[((unsigned char) ptr[i]) >> 4];
+ state->buffer[state->offset++] = parse_xdigits[((unsigned char) ptr[i]) & 0xf];
+ ++i;
+ );
+ }
+
+ return consumed;
+ }
+
+ if (!silent) {
+ if (consumed) {
+ php_error_docref(NULL, E_WARNING,
+ "Failed to parse %s; unexpected multibyte sequence 0x%x at pos %u in '%s'",
+ parse_what[what], wchar, (unsigned) (ptr - begin), begin);
+ } else {
+ php_error_docref(NULL, E_WARNING,
+ "Failed to parse %s; unexpected byte 0x%02x at pos %u in '%s'",
+ parse_what[what], (unsigned char) *ptr, (unsigned) (ptr - begin), begin);
+ }
+ }
+
+ return 0;
+}
+
+static ZEND_RESULT_CODE parse_userinfo(struct parse_state *state, const char *ptr)
+{
+ size_t mb;
+ const char *password = NULL, *end = state->ptr, *tmp = ptr;
+
+ state->url.user = &state->buffer[state->offset];
+
+ do {
+ switch (*ptr) {
+ case ':':
+ if (password) {
+ php_error_docref(NULL, E_WARNING,
+ "Failed to parse password; duplicate ':' at pos %u in '%s'",
+ (unsigned) (ptr - tmp), tmp);
+ return FAILURE;
+ }
+ password = ptr + 1;
+ state->buffer[state->offset++] = 0;
+ state->url.pass = &state->buffer[state->offset];
+ break;
+
+ case '%':
+ if (ptr[1] != '%' && (end - ptr <= 2 || !isxdigit(*(ptr+1)) || !isxdigit(*(ptr+2)))) {
+ php_error_docref(NULL, E_WARNING,
+ "Failed to parse userinfo; invalid percent encoding at pos %u in '%s'",
+ (unsigned) (ptr - tmp), tmp);
+ return FAILURE;
+ }
+ state->buffer[state->offset++] = *ptr++;
+ state->buffer[state->offset++] = *ptr++;
+ state->buffer[state->offset++] = *ptr;
+ break;
+
+ case '!': case '$': case '&': case '\'': case '(': case ')': case '*':
+ case '+': case ',': case ';': case '=': /* sub-delims */
+ case '-': case '.': case '_': case '~': /* unreserved */
+ 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 '0': case '1': case '2': case '3': case '4': case '5': case '6':
+ case '7': case '8': case '9':
+ /* allowed */
+ state->buffer[state->offset++] = *ptr;
+ break;
+
+ default:
+ if (!(mb = parse_mb(state, PARSE_USERINFO, ptr, end, tmp, 0))) {
+ return FAILURE;
+ }
+ ptr += mb - 1;
+ }
+ } while(++ptr != end);
+
+
+ state->buffer[state->offset++] = 0;
+
+ return SUCCESS;
+}
+
+#if defined(PHP_WIN32) || defined(HAVE_UIDNA_IDNTOASCII)
+typedef size_t (*parse_mb_func)(unsigned *wc, const char *ptr, const char *end);
+static ZEND_RESULT_CODE to_utf16(parse_mb_func fn, const char *u8, uint16_t **u16, size_t *len TSRMLS_DC)
+{
+ size_t offset = 0, u8_len = strlen(u8);
+
+ *u16 = ecalloc(4 * sizeof(uint16_t), u8_len + 1);
+ *len = 0;
+
+ while (offset < u8_len) {
+ unsigned wc;
+ uint16_t buf[2], *ptr = buf;
+ size_t consumed = fn(&wc, &u8[offset], &u8[u8_len]);
+
+ if (!consumed) {
+ efree(*u16);
+ php_error_docref(NULL, E_WARNING, "Failed to parse UTF-8 at pos %zu of '%s'", offset, u8);
+ return FAILURE;
+ } else {
+ offset += consumed;
+ }
+
+ switch (wctoutf16(buf, wc)) {
+ case 2:
+ (*u16)[(*len)++] = *ptr++;
+ /* no break */
+ case 1:
+ (*u16)[(*len)++] = *ptr++;
+ break;
+ case 0:
+ default:
+ efree(*u16);
+ php_error_docref(NULL, E_WARNING, "Failed to convert UTF-32 'U+%X' to UTF-16", wc);
+ return FAILURE;
+ }
+ }
+
+ return SUCCESS;
+}
+#endif
+
+#ifndef MAXHOSTNAMELEN
+# define MAXHOSTNAMELEN 256
+#endif
+
+#if PHP_HTTP_HAVE_IDN2
+static ZEND_RESULT_CODE parse_idn2(struct parse_state *state, size_t prev_len)
+{
+ char *idn = NULL;
+ int rv = -1;
+ TSRMLS_FETCH_FROM_CTX(state->ts);
+
+ if (state->flags & PHP_HTTP_URL_PARSE_MBUTF8) {
+ rv = idn2_lookup_u8((const unsigned char *) state->url.host, (unsigned char **) &idn, IDN2_NFC_INPUT);
+ }
+# ifdef PHP_HTTP_HAVE_WCHAR
+ else if (state->flags & PHP_HTTP_URL_PARSE_MBLOC) {
+ rv = idn2_lookup_ul(state->url.host, &idn, 0);
+ }
+# endif
+ if (rv != IDN2_OK) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse IDN; %s", idn2_strerror(rv));
+ return FAILURE;
+ } else {
+ size_t idnlen = strlen(idn);
+ memcpy(state->url.host, idn, idnlen + 1);
+ free(idn);
+ state->offset += idnlen - prev_len;
+ return SUCCESS;
+ }
+}
+#elif PHP_HTTP_HAVE_IDN
+static ZEND_RESULT_CODE parse_idn(struct parse_state *state, size_t prev_len)
+{
+ char *idn = NULL;
+ int rv = -1;
+
+ if (state->flags & PHP_HTTP_URL_PARSE_MBUTF8) {
+ rv = idna_to_ascii_8z(state->url.host, &idn, IDNA_ALLOW_UNASSIGNED|IDNA_USE_STD3_ASCII_RULES);
+ }
+# ifdef PHP_HTTP_HAVE_WCHAR
+ else if (state->flags & PHP_HTTP_URL_PARSE_MBLOC) {
+ rv = idna_to_ascii_lz(state->url.host, &idn, IDNA_ALLOW_UNASSIGNED|IDNA_USE_STD3_ASCII_RULES);
+ }
+# endif
+ if (rv != IDNA_SUCCESS) {
+ php_error_docref(NULL, E_WARNING, "Failed to parse IDN; %s", idna_strerror(rv));
+ return FAILURE;
+ } else {
+ size_t idnlen = strlen(idn);
+ memcpy(state->url.host, idn, idnlen + 1);
+ free(idn);
+ state->offset += idnlen - prev_len;
+ return SUCCESS;
+ }
+}
+#endif
+
+#ifdef HAVE_UIDNA_IDNTOASCII
+# if HAVE_UNICODE_UIDNA_H
+# include <unicode/uidna.h>
+# else
+typedef uint16_t UChar;
+typedef enum { U_ZERO_ERROR = 0 } UErrorCode;
+int32_t uidna_IDNToASCII(const UChar *src, int32_t srcLength, UChar *dest, int32_t destCapacity, int32_t options, void *parseError, UErrorCode *status);
+# endif
+static ZEND_RESULT_CODE parse_uidn(struct parse_state *state)
+{
+ char *host_ptr;
+ uint16_t *uhost_str, ahost_str[MAXHOSTNAMELEN], *ahost_ptr;
+ size_t uhost_len, ahost_len;
+ UErrorCode error = U_ZERO_ERROR;
+ TSRMLS_FETCH_FROM_CTX(state->ts);
+
+ if (state->flags & PHP_HTTP_URL_PARSE_MBUTF8) {
+ if (SUCCESS != to_utf16(parse_mb_utf8, state->url.host, &uhost_str, &uhost_len TSRMLS_CC)) {
+ return FAILURE;
+ }
+#ifdef PHP_HTTP_HAVE_WCHAR
+ } else if (state->flags & PHP_HTTP_URL_PARSE_MBLOC) {
+ if (SUCCESS != to_utf16(parse_mb_loc, state->url.host, &uhost_str, &uhost_len TSRMLS_CC)) {
+ return FAILURE;
+ }
+#endif
+ } else {
+ php_error_docref(NULL, E_WARNING, "Failed to parse IDN; codepage not specified");
+ return FAILURE;
+ }
+
+ ahost_len = uidna_IDNToASCII(uhost_str, uhost_len, ahost_str, MAXHOSTNAMELEN, 3, NULL, &error);
+ efree(uhost_str);
+
+ if (error != U_ZERO_ERROR) {
+ php_error_docref(NULL, E_WARNING, "Failed to parse IDN; ICU error %d", error);
+ return FAILURE;
+ }
+
+ host_ptr = state->url.host;
+ ahost_ptr = ahost_str;
+ PHP_HTTP_DUFF(ahost_len, *host_ptr++ = *ahost_ptr++);
+
+ *host_ptr = '\0';
+ state->offset += host_ptr - state->url.host;
+
+ return SUCCESS;
+}
+#endif
+
+#if 0 && defined(PHP_WIN32)
+static ZEND_RESULT_CODE parse_widn(struct parse_state *state)
+{
+ char *host_ptr;
+ uint16_t *uhost_str, ahost_str[MAXHOSTNAMELEN], *ahost_ptr;
+ size_t uhost_len;
+
+ if (state->flags & PHP_HTTP_URL_PARSE_MBUTF8) {
+ if (SUCCESS != to_utf16(parse_mb_utf8, state->url.host, &uhost_str, &uhost_len)) {
+ php_error_docref(NULL, E_WARNING, "Failed to parse IDN");
+ return FAILURE;
+ }
+#ifdef PHP_HTTP_HAVE_WCHAR
+ } else if (state->flags & PHP_HTTP_URL_PARSE_MBLOC) {
+ if (SUCCESS != to_utf16(parse_mb_loc, state->url.host, &uhost_str, &uhost_len)) {
+ php_error_docref(NULL, E_WARNING, "Failed to parse IDN");
+ return FAILURE;
+ }
+#endif
+ } else {
+ php_error_docref(NULL, E_WARNING, "Failed to parse IDN");
+ return FAILURE;
+ }