libphonenumber\PhoneNumberUtil::parseHelper()

Complexity

Conditions	23
Paths	692

Size

Total Lines	150
Code Lines	85

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	87
CRAP Score	23.0845

Importance

Changes	7
Bugs	2	Features	2

<?php
    protected function parseHelper($numberToParse, $defaultRegion, $keepRawInput, $checkRegion, PhoneNumber $phoneNumber)
    {
        if ($numberToParse === null) {
            throw new NumberParseException(NumberParseException::NOT_A_NUMBER, "The phone number supplied was null.");
        }

        $numberToParse = trim($numberToParse);

        if (mb_strlen($numberToParse) > static::MAX_INPUT_STRING_LENGTH) {
            throw new NumberParseException(
                NumberParseException::TOO_LONG,
                "The string supplied was too long to parse."
            );
        }

        $nationalNumber = '';
        $this->buildNationalNumberForParsing($numberToParse, $nationalNumber);

        if (!$this->isViablePhoneNumber($nationalNumber)) {
            throw new NumberParseException(
                NumberParseException::NOT_A_NUMBER,
                "The string supplied did not seem to be a phone number."
            );
        }

        // Check the region supplied is valid, or that the extracted number starts with some sort of +
        // sign so the number's region can be determined.
        if ($checkRegion && !$this->checkRegionForParsing($nationalNumber, $defaultRegion)) {
            throw new NumberParseException(
                NumberParseException::INVALID_COUNTRY_CODE,
                "Missing or invalid default region."
            );
        }

        if ($keepRawInput) {
            $phoneNumber->setRawInput($numberToParse);
        }
        // Attempt to parse extension first, since it doesn't require region-specific data and we want
        // to have the non-normalised number here.
        $extension = $this->maybeStripExtension($nationalNumber);
        if (mb_strlen($extension) > 0) {
            $phoneNumber->setExtension($extension);
        }

        $regionMetadata = $this->getMetadataForRegion($defaultRegion);
        // Check to see if the number is given in international format so we know whether this number is
        // from the default region or not.
        $normalizedNationalNumber = "";
        try {
            // TODO: This method should really just take in the string buffer that has already
            // been created, and just remove the prefix, rather than taking in a string and then
            // outputting a string buffer.
            $countryCode = $this->maybeExtractCountryCode(
                $nationalNumber,
                $regionMetadata,
                $normalizedNationalNumber,
                $keepRawInput,
                $phoneNumber
            );
        } catch (NumberParseException $e) {
            $matcher = new Matcher(static::$PLUS_CHARS_PATTERN, $nationalNumber);
            if ($e->getErrorType() == NumberParseException::INVALID_COUNTRY_CODE && $matcher->lookingAt()) {
                // Strip the plus-char, and try again.
                $countryCode = $this->maybeExtractCountryCode(
                    substr($nationalNumber, $matcher->end()),
                    $regionMetadata,
                    $normalizedNationalNumber,
                    $keepRawInput,
                    $phoneNumber
                );
                if ($countryCode == 0) {
                    throw new NumberParseException(
                        NumberParseException::INVALID_COUNTRY_CODE,
                        "Could not interpret numbers after plus-sign."
                    );
                }
            } else {
                throw new NumberParseException($e->getErrorType(), $e->getMessage(), $e);
            }
        }
        if ($countryCode !== 0) {
            $phoneNumberRegion = $this->getRegionCodeForCountryCode($countryCode);
            if ($phoneNumberRegion != $defaultRegion) {
                // Metadata cannot be null because the country calling code is valid.
                $regionMetadata = $this->getMetadataForRegionOrCallingCode($countryCode, $phoneNumberRegion);
            }
        } else {
            // If no extracted country calling code, use the region supplied instead. The national number
            // is just the normalized version of the number we were given to parse.

            $normalizedNationalNumber .= $this->normalize($nationalNumber);
            if ($defaultRegion !== null) {
                $countryCode = $regionMetadata->getCountryCode();
                $phoneNumber->setCountryCode($countryCode);
            } elseif ($keepRawInput) {
                $phoneNumber->clearCountryCodeSource();
            }
        }
        if (mb_strlen($normalizedNationalNumber) < static::MIN_LENGTH_FOR_NSN) {
            throw new NumberParseException(
                NumberParseException::TOO_SHORT_NSN,
                "The string supplied is too short to be a phone number."
            );
        }
        if ($regionMetadata !== null) {
            $carrierCode = "";
            $potentialNationalNumber = $normalizedNationalNumber;
            $this->maybeStripNationalPrefixAndCarrierCode($potentialNationalNumber, $regionMetadata, $carrierCode);
            // We require that the NSN remaining after stripping the national prefix and carrier code be
            // of a possible length for the region. Otherwise, we don't do the stripping, since the
            // original number could be a valid short number.
            if (!$this->isShorterThanPossibleNormalNumber($regionMetadata, $potentialNationalNumber)) {
                $normalizedNationalNumber = $potentialNationalNumber;
                if ($keepRawInput) {
                    $phoneNumber->setPreferredDomesticCarrierCode($carrierCode);
                }
            }
        }
        $lengthOfNationalNumber = mb_strlen($normalizedNationalNumber);
        if ($lengthOfNationalNumber < static::MIN_LENGTH_FOR_NSN) {
            throw new NumberParseException(
                NumberParseException::TOO_SHORT_NSN,
                "The string supplied is too short to be a phone number."
            );
        }
        if ($lengthOfNationalNumber > static::MAX_LENGTH_FOR_NSN) {
            throw new NumberParseException(
                NumberParseException::TOO_LONG,
                "The string supplied is too long to be a phone number."
            );
        }
        $this->setItalianLeadingZerosForPhoneNumber($normalizedNationalNumber, $phoneNumber);


        /*
         * We have to store the National Number as a string instead of a "long" as Google do
         *
         * Since PHP doesn't always support 64 bit INTs, this was a float, but that had issues
         * with long numbers.
         *
         * We have to remove the leading zeroes ourself though
         */
        if ((int)$normalizedNationalNumber == 0) {
            $normalizedNationalNumber = "0";
        } else {
            $normalizedNationalNumber = ltrim($normalizedNationalNumber, '0');
        }

        $phoneNumber->setNationalNumber($normalizedNationalNumber);
    }