2015-07-14 20:32:22 +00:00
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#include <exception>
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#include <string>
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#include "phonenumbers/phonenumberutil.h"
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extern "C" {
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#include "postgres.h"
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#include "libpq/pqformat.h"
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#include "fmgr.h"
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}
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2015-07-17 20:22:30 +00:00
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#include "short_phone_number.h"
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2015-07-14 20:32:22 +00:00
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using namespace i18n::phonenumbers;
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2015-07-17 20:22:30 +00:00
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static const PhoneNumberUtil* const phoneUtil = PhoneNumberUtil::GetInstance();
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2015-07-17 18:46:26 +00:00
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static const char* parseErrorMessage(PhoneNumberUtil::ErrorType error) {
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using PNU = i18n::phonenumbers::PhoneNumberUtil;
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switch(error) {
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case PNU::NO_PARSING_ERROR:
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return "Parsed successfully";
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case PNU::NOT_A_NUMBER:
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return "String does not appear to contain a phone number.";
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case PNU::INVALID_COUNTRY_CODE_ERROR:
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return "Invalid country code";
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//TODO: handle more error cases specifically.
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default:
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//We have some generic parsing error.
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return "Unable to parse number";
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}
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}
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2015-07-16 19:56:23 +00:00
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2015-07-17 18:46:26 +00:00
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/*
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* Utility functions for error handling
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*/
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2015-07-14 20:32:22 +00:00
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2015-07-17 18:46:26 +00:00
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static void reportOutOfMemory() {
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2015-07-14 20:32:22 +00:00
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ereport(ERROR,
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(errcode(ERRCODE_OUT_OF_MEMORY)));
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}
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2015-07-17 18:46:26 +00:00
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static void reportParseError(const char* phone_number, PhoneNumberUtil::ErrorType err) {
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2015-07-14 20:32:22 +00:00
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ereport(ERROR,
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(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
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errmsg("unable to parse '%s' as a phone number", phone_number),
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2015-07-17 18:46:26 +00:00
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errdetail("%s", parseErrorMessage(err))));
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2015-07-14 20:32:22 +00:00
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}
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2015-07-21 21:41:44 +00:00
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static void reportGenericError(const std::exception& exception) {
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2015-07-14 20:32:22 +00:00
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ereport(ERROR,
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(errcode(ERRCODE_EXTERNAL_ROUTINE_INVOCATION_EXCEPTION),
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2015-07-14 20:40:13 +00:00
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errmsg("C++ exception: %s", typeid(exception).name()),
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2015-07-14 20:32:22 +00:00
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errdetail("%s", exception.what())));
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}
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2015-07-17 18:46:26 +00:00
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static void logInfo(const char* msg) {
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2015-07-16 18:25:44 +00:00
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ereport(INFO,
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(errcode(ERRCODE_SUCCESSFUL_COMPLETION),
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errmsg("%s", msg)));
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}
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2015-07-16 19:56:23 +00:00
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/*
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* Utility functions
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*/
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2015-07-22 16:57:44 +00:00
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static char* textToCString(const text* text) {
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size_t len = VARSIZE(text) - VARHDRSZ;
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char* str = (char*)palloc(len + 1);
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memcpy(str, VARDATA(text), len);
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str[len] = '\0';
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return str;
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}
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2015-07-16 19:56:23 +00:00
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//Internal function used by phone_number_in and parse_phone_number
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2015-07-22 16:57:44 +00:00
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//TODO: take a std::string to minimize copying?
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2015-07-21 17:32:30 +00:00
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ShortPhoneNumber* parsePhoneNumber(const char* number_str, const char* country) throw() {
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2015-07-17 18:46:26 +00:00
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try {
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2015-07-21 17:32:30 +00:00
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PhoneNumber number;
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ShortPhoneNumber* short_number;
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2015-07-17 18:46:26 +00:00
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2015-07-21 17:32:30 +00:00
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short_number = (ShortPhoneNumber*)palloc0(sizeof(ShortPhoneNumber));
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if(short_number == nullptr) {
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2015-07-17 18:46:26 +00:00
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throw std::bad_alloc();
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}
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PhoneNumberUtil::ErrorType error;
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2015-07-21 17:32:30 +00:00
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error = phoneUtil->Parse(number_str, country, &number);
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2015-07-17 18:46:26 +00:00
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if(error == PhoneNumberUtil::NO_PARSING_ERROR) {
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2015-07-21 17:36:40 +00:00
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//Initialize short_number using placement new.
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2015-07-21 17:32:30 +00:00
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new(short_number) ShortPhoneNumber(number);
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return short_number;
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2015-07-17 18:46:26 +00:00
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} else {
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reportParseError(number_str, error);
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return nullptr;
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}
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//TODO: check number validity.
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2015-07-21 21:41:44 +00:00
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} catch(const std::bad_alloc& e) {
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2015-07-17 18:46:26 +00:00
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reportOutOfMemory();
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2015-07-21 21:41:44 +00:00
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//TODO: figure out why we need this.
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} catch(const PhoneNumberTooLongException& e) {
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reportGenericError(e);
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} catch(const std::exception& e) {
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2015-07-17 18:46:26 +00:00
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reportGenericError(e);
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2015-07-16 19:56:23 +00:00
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}
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2015-07-17 18:46:26 +00:00
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return nullptr;
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2015-07-16 19:56:23 +00:00
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}
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2015-07-14 20:32:22 +00:00
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//TODO: handle non-exception thrown types? (shouldn't happen, but you never know...)
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2015-07-16 19:56:23 +00:00
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//TODO: check null args? (PG_ARGISNULL). Make non-strict?
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/*
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* Extension functions
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*/
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2015-07-14 20:32:22 +00:00
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extern "C" {
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#ifdef PG_MODULE_MAGIC
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PG_MODULE_MAGIC;
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#endif
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PGDLLEXPORT PG_FUNCTION_INFO_V1(phone_number_in);
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PGDLLEXPORT
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Datum
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phone_number_in(PG_FUNCTION_ARGS)
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{
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2015-07-16 19:56:23 +00:00
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const char *number_str = PG_GETARG_CSTRING(0);
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2015-07-21 17:32:30 +00:00
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ShortPhoneNumber* number = parsePhoneNumber(number_str, "US");
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2015-07-17 18:46:26 +00:00
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if(number) {
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PG_RETURN_POINTER(number);
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} else {
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PG_RETURN_NULL();
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2015-07-16 19:56:23 +00:00
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}
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}
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PGDLLEXPORT PG_FUNCTION_INFO_V1(parse_phone_number);
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PGDLLEXPORT
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Datum
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parse_phone_number(PG_FUNCTION_ARGS)
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{
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2015-07-22 16:57:44 +00:00
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try {
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const text* number_text = PG_GETARG_TEXT_P(0);
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const text* country_text = PG_GETARG_TEXT_P(1);
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char* number_str = textToCString(number_text);
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char* country = textToCString(country_text);
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ShortPhoneNumber* number = parsePhoneNumber(number_str, country);
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//TODO: prevent leaks.
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pfree(number_str);
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pfree(country);
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if(number) {
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PG_RETURN_POINTER(number);
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} else {
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PG_RETURN_NULL();
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}
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} catch(std::bad_alloc e) {
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reportOutOfMemory();
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} catch(std::exception& e) {
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reportGenericError(e);
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2015-07-14 20:32:22 +00:00
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}
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}
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PGDLLEXPORT PG_FUNCTION_INFO_V1(phone_number_out);
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PGDLLEXPORT
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Datum
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phone_number_out(PG_FUNCTION_ARGS)
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{
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try {
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2015-07-21 17:32:30 +00:00
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const ShortPhoneNumber* short_number = (ShortPhoneNumber*)PG_GETARG_POINTER(0);
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PhoneNumber number = *short_number;
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2015-07-16 18:25:44 +00:00
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2015-07-21 17:32:30 +00:00
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std::string formatted;
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phoneUtil->Format(number, PhoneNumberUtil::INTERNATIONAL, &formatted);
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2015-07-16 18:25:44 +00:00
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//Copy the formatted number to a C-style string.
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//We must use the PostgreSQL allocator, not new/malloc.
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size_t len = formatted.length();
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2015-07-21 17:32:30 +00:00
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char* result = (char*)palloc(len + 1);
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2015-07-16 18:25:44 +00:00
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if(result == nullptr) {
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2015-07-21 17:32:30 +00:00
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throw std::bad_alloc();
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2015-07-16 18:25:44 +00:00
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}
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memcpy(result, formatted.data(), len);
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result[len] = '\0';
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PG_RETURN_CSTRING(result);
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2015-07-21 21:41:44 +00:00
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} catch(const std::bad_alloc& e) {
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2015-07-14 20:32:22 +00:00
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reportOutOfMemory();
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2015-07-21 21:41:44 +00:00
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} catch (const std::exception& e) {
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2015-07-14 20:32:22 +00:00
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reportGenericError(e);
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}
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2015-07-16 19:56:23 +00:00
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2015-07-16 18:25:44 +00:00
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PG_RETURN_NULL();
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2015-07-14 20:32:22 +00:00
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}
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PGDLLEXPORT PG_FUNCTION_INFO_V1(phone_number_recv);
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2015-07-16 18:25:44 +00:00
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//TODO: handle leading zeroes?
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2015-07-14 20:32:22 +00:00
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PGDLLEXPORT
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Datum
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phone_number_recv(PG_FUNCTION_ARGS)
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{
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StringInfo buf = (StringInfo)PG_GETARG_POINTER(0);
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PhoneNumber *result;
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//TODO: error handling?
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result = (PhoneNumber*)palloc0(sizeof(PhoneNumber));
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result->set_country_code(pq_getmsgint(buf, 4));
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result->set_national_number(pq_getmsgint64(buf));
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PG_RETURN_POINTER(result);
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}
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PGDLLEXPORT PG_FUNCTION_INFO_V1(phone_number_send);
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PGDLLEXPORT
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Datum
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phone_number_send(PG_FUNCTION_ARGS)
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{
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PhoneNumber *number = (PhoneNumber*)PG_GETARG_POINTER(0);
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StringInfoData buf;
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pq_begintypsend(&buf);
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pq_sendint(&buf, number->country_code(), 4);
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pq_sendint64(&buf, number->national_number());
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PG_RETURN_BYTEA_P(pq_endtypsend(&buf));
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}
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}
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