[bisq-network/bisq] Validate phone numbers (#3134)

[Stan]

ghubstan commented on this pull request.



> +    public ValidationResult validate(String input) {
+        normalizedPhoneNumber = null;
+        ValidationResult result = super.validate(input);
+        if (!result.isValid) {
+            return result;
+        }
+        final String trimmedInput = input.trim();
+        boolean isCountryDialingCodeExplicit = trimmedInput.startsWith("+");
+        // remove non-digit chars:  plus sign, dashes, parens, hashes, slashes and white spaces
+        String pureNumber = input.replaceAll("[\\+\\s+()\\-\\−\\#\\\\]", "");
+        boolean hasValidCallingCodePrefix = pureNumber.startsWith(normalizedCallingCode);
+        boolean isCountryCallingCodeImplicit = !isCountryDialingCodeExplicit && hasValidCallingCodePrefix;
+
+        result = validateIsNumeric(input, pureNumber)
+                .and(validateHasSufficientDigits(input, pureNumber))
+                .and(validateIsTooLong(input, pureNumber))

OK

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