webservices: Add support for decoding decimal numeric character references.

dlls/webservices/reader.c

@@ -1249,7 +1249,9 @@ static HRESULT decode_text( const unsigned char *str, ULONG len, unsigned char *
                 int len_utf8, cp = 0;
 
                 p++; len--;
-                if (!len || *p != 'x') return WS_E_INVALID_FORMAT;
+                if (!len) return WS_E_INVALID_FORMAT;
+                else if (*p == 'x')
+                {
                     p++; len--;
 
                     start = len;
@@ -1266,6 +1268,26 @@ static HRESULT decode_text( const unsigned char *str, ULONG len, unsigned char *
                         else cp += *p - 'A' + 10;
                         p++;
                     }
+                }
+                else if (isdigit( *p ))
+                {
+                    while (len && *p == '0') { p++; len--; };
+                    if (!len) return WS_E_INVALID_FORMAT;
+
+                    start = len;
+                    while (len && isdigit( *p )) { p++; len--; };
+                    if (!len) return WS_E_INVALID_FORMAT;
+
+                    p -= nb_digits = start - len;
+                    if (!nb_digits || nb_digits > 7 || p[nb_digits] != ';') return WS_E_INVALID_FORMAT;
+                    for (i = 0; i < nb_digits; i++)
+                    {
+                        cp *= 10;
+                        cp += *p - '0';
+                        p++;
+                    }
+                }
+                else return WS_E_INVALID_FORMAT;
                 p++; len--;
                 if ((len_utf8 = codepoint_to_utf8( cp, q )) < 0) return WS_E_INVALID_FORMAT;
                 *ret_len += len_utf8;

dlls/webservices/tests/reader.c

@@ -3611,10 +3611,14 @@ static void test_entities(void)
     static const char str26[] = "<t>&#xffff;</t>";
     static const char str27[] = "<t>&LT;</t>";
     static const char str28[] = "<t>&#x0;</t>";
+    static const char str29[] = "<t>&#0;</t>";
+    static const char str30[] = "<t>&#65;</t>";
+    static const char str31[] = "<t>&#65393;</t>";
     static const char res4[] = {0xea, 0xaa, 0xaa, 0x00};
     static const char res5[] = {0xf2, 0xaa, 0xaa, 0xaa, 0x00};
     static const char res21[] = {0xed, 0x9f, 0xbf, 0x00};
     static const char res24[] = {0xee, 0x80, 0x80, 0x00};
+    static const char res31[] = {0xef, 0xbd, 0xb1, 0x00};
     static const struct
     {
         const char *str;
@@ -3651,6 +3655,9 @@ static void test_entities(void)
         { str26, WS_E_INVALID_FORMAT },
         { str27, WS_E_INVALID_FORMAT },
         { str28, WS_E_INVALID_FORMAT },
+        { str29, WS_E_INVALID_FORMAT },
+        { str30, S_OK, "A" },
+        { str31, S_OK, res31 },
     };
     HRESULT hr;
     WS_XML_READER *reader;