| /** |
| * Validates an email address according to RFCs 5321, 5322 and others. |
| * |
| * Authors: Dominic Sayers $(LT)dominic@sayers.cc$(GT), Jacob Carlborg |
| * Copyright: Dominic Sayers, Jacob Carlborg 2008-. |
| * Test schema documentation: Copyright © 2011, Daniel Marschall |
| * License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost Software License 1.0) |
| * Version: 3.0.13 - Version 3.0 of the original PHP implementation: $(LINK http://www.dominicsayers.com/isemail) |
| * |
| * Standards: |
| * $(UL |
| * $(LI RFC 5321) |
| * $(LI RFC 5322) |
| * ) |
| * |
| * References: |
| * $(UL |
| * $(LI $(LINK http://www.dominicsayers.com/isemail)) |
| * $(LI $(LINK http://tools.ietf.org/html/rfc5321)) |
| * $(LI $(LINK http://tools.ietf.org/html/rfc5322)) |
| * ) |
| * |
| * Source: $(PHOBOSSRC std/net/_isemail.d) |
| */ |
| module std.net.isemail; |
| |
| // FIXME |
| import std.range.primitives; // : ElementType; |
| import std.regex; |
| import std.traits; |
| import std.typecons : Flag, Yes, No; |
| |
| /** |
| * Check that an email address conforms to RFCs 5321, 5322 and others. |
| * |
| * Distinguishes between a Mailbox as defined by RFC 5321 and an addr-spec as |
| * defined by RFC 5322. Depending on the context, either can be regarded as a |
| * valid email address. |
| * |
| * Note: The DNS check is currently not implemented. |
| * |
| * Params: |
| * email = The email address to check |
| * checkDNS = If $(D Yes.checkDns) then a DNS check for MX records will be made |
| * errorLevel = Determines the boundary between valid and invalid addresses. |
| * Status codes above this number will be returned as-is, |
| * status codes below will be returned as EmailStatusCode.valid. |
| * Thus the calling program can simply look for EmailStatusCode.valid |
| * if it is only interested in whether an address is valid or not. The |
| * $(D_PARAM errorLevel) will determine how "picky" isEmail() is about |
| * the address. |
| * |
| * If omitted or passed as EmailStatusCode.none then isEmail() will |
| * not perform any finer grained error checking and an address is |
| * either considered valid or not. Email status code will either be |
| * EmailStatusCode.valid or EmailStatusCode.error. |
| * |
| * Returns: |
| * An $(LREF EmailStatus), indicating the status of the email address. |
| */ |
| EmailStatus isEmail(Char)(const(Char)[] email, CheckDns checkDNS = No.checkDns, |
| EmailStatusCode errorLevel = EmailStatusCode.none) |
| if (isSomeChar!(Char)) |
| { |
| import std.algorithm.iteration : uniq, filter, map; |
| import std.algorithm.searching : canFind, maxElement; |
| import std.array : array, split; |
| import std.conv : to; |
| import std.exception : enforce; |
| import std.string : indexOf, lastIndexOf; |
| import std.uni : isNumber; |
| |
| alias tstring = const(Char)[]; |
| alias Token = TokenImpl!(Char); |
| |
| static ipRegex = ctRegex!(`\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}`~ |
| `(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$`.to!(const(Char)[])); |
| static fourChars = ctRegex!(`^[0-9A-Fa-f]{0,4}$`.to!(const(Char)[])); |
| |
| enum defaultThreshold = 16; |
| int threshold; |
| bool diagnose; |
| |
| if (errorLevel == EmailStatusCode.any) |
| { |
| threshold = EmailStatusCode.valid; |
| diagnose = true; |
| } |
| |
| else if (errorLevel == EmailStatusCode.none) |
| threshold = defaultThreshold; |
| |
| else |
| { |
| diagnose = true; |
| |
| switch (errorLevel) |
| { |
| case EmailStatusCode.warning: threshold = defaultThreshold; break; |
| case EmailStatusCode.error: threshold = EmailStatusCode.valid; break; |
| default: threshold = errorLevel; |
| } |
| } |
| |
| auto returnStatus = [EmailStatusCode.valid]; |
| auto context = EmailPart.componentLocalPart; |
| auto contextStack = [context]; |
| auto contextPrior = context; |
| tstring token = ""; |
| tstring tokenPrior = ""; |
| tstring[EmailPart] parseData = [EmailPart.componentLocalPart : "", EmailPart.componentDomain : ""]; |
| tstring[][EmailPart] atomList = [EmailPart.componentLocalPart : [""], EmailPart.componentDomain : [""]]; |
| auto elementCount = 0; |
| auto elementLength = 0; |
| auto hyphenFlag = false; |
| auto endOrDie = false; |
| auto crlfCount = int.min; // int.min == not defined |
| |
| foreach (ref i, e ; email) |
| { |
| token = email.get(i, e); |
| |
| switch (context) |
| { |
| case EmailPart.componentLocalPart: |
| switch (token) |
| { |
| case Token.openParenthesis: |
| if (elementLength == 0) |
| returnStatus ~= elementCount == 0 ? EmailStatusCode.comment : |
| EmailStatusCode.deprecatedComment; |
| |
| else |
| { |
| returnStatus ~= EmailStatusCode.comment; |
| endOrDie = true; |
| } |
| |
| contextStack ~= context; |
| context = EmailPart.contextComment; |
| break; |
| |
| case Token.dot: |
| if (elementLength == 0) |
| returnStatus ~= elementCount == 0 ? EmailStatusCode.errorDotStart : |
| EmailStatusCode.errorConsecutiveDots; |
| |
| else |
| { |
| if (endOrDie) |
| returnStatus ~= EmailStatusCode.deprecatedLocalPart; |
| } |
| |
| endOrDie = false; |
| elementLength = 0; |
| elementCount++; |
| parseData[EmailPart.componentLocalPart] ~= token; |
| |
| if (elementCount >= atomList[EmailPart.componentLocalPart].length) |
| atomList[EmailPart.componentLocalPart] ~= ""; |
| |
| else |
| atomList[EmailPart.componentLocalPart][elementCount] = ""; |
| break; |
| |
| case Token.doubleQuote: |
| if (elementLength == 0) |
| { |
| returnStatus ~= elementCount == 0 ? EmailStatusCode.rfc5321QuotedString : |
| EmailStatusCode.deprecatedLocalPart; |
| |
| parseData[EmailPart.componentLocalPart] ~= token; |
| atomList[EmailPart.componentLocalPart][elementCount] ~= token; |
| elementLength++; |
| endOrDie = true; |
| contextStack ~= context; |
| context = EmailPart.contextQuotedString; |
| } |
| |
| else |
| returnStatus ~= EmailStatusCode.errorExpectingText; |
| break; |
| |
| case Token.cr: |
| case Token.space: |
| case Token.tab: |
| if ((token == Token.cr) && ((++i == email.length) || (email.get(i, e) != Token.lf))) |
| { |
| returnStatus ~= EmailStatusCode.errorCrNoLf; |
| break; |
| } |
| |
| if (elementLength == 0) |
| returnStatus ~= elementCount == 0 ? EmailStatusCode.foldingWhitespace : |
| EmailStatusCode.deprecatedFoldingWhitespace; |
| |
| else |
| endOrDie = true; |
| |
| contextStack ~= context; |
| context = EmailPart.contextFoldingWhitespace; |
| tokenPrior = token; |
| break; |
| |
| case Token.at: |
| enforce(contextStack.length == 1, "Unexpected item on context stack"); |
| |
| if (parseData[EmailPart.componentLocalPart] == "") |
| returnStatus ~= EmailStatusCode.errorNoLocalPart; |
| |
| else if (elementLength == 0) |
| returnStatus ~= EmailStatusCode.errorDotEnd; |
| |
| else if (parseData[EmailPart.componentLocalPart].length > 64) |
| returnStatus ~= EmailStatusCode.rfc5322LocalTooLong; |
| |
| else if (contextPrior == EmailPart.contextComment || |
| contextPrior == EmailPart.contextFoldingWhitespace) |
| returnStatus ~= EmailStatusCode.deprecatedCommentFoldingWhitespaceNearAt; |
| |
| context = EmailPart.componentDomain; |
| contextStack = [context]; |
| elementCount = 0; |
| elementLength = 0; |
| endOrDie = false; |
| break; |
| |
| default: |
| if (endOrDie) |
| { |
| switch (contextPrior) |
| { |
| case EmailPart.contextComment: |
| case EmailPart.contextFoldingWhitespace: |
| returnStatus ~= EmailStatusCode.errorTextAfterCommentFoldingWhitespace; |
| break; |
| |
| case EmailPart.contextQuotedString: |
| returnStatus ~= EmailStatusCode.errorTextAfterQuotedString; |
| break; |
| |
| default: |
| throw new Exception("More text found where none is allowed, but " |
| ~"unrecognised prior context: " ~ to!(string)(contextPrior)); |
| } |
| } |
| |
| else |
| { |
| contextPrior = context; |
| immutable c = token.front; |
| |
| if (c < '!' || c > '~' || c == '\n' || Token.specials.canFind(token)) |
| returnStatus ~= EmailStatusCode.errorExpectingText; |
| |
| parseData[EmailPart.componentLocalPart] ~= token; |
| atomList[EmailPart.componentLocalPart][elementCount] ~= token; |
| elementLength++; |
| } |
| } |
| break; |
| |
| case EmailPart.componentDomain: |
| switch (token) |
| { |
| case Token.openParenthesis: |
| if (elementLength == 0) |
| { |
| returnStatus ~= elementCount == 0 ? |
| EmailStatusCode.deprecatedCommentFoldingWhitespaceNearAt |
| : EmailStatusCode.deprecatedComment; |
| } |
| else |
| { |
| returnStatus ~= EmailStatusCode.comment; |
| endOrDie = true; |
| } |
| |
| contextStack ~= context; |
| context = EmailPart.contextComment; |
| break; |
| |
| case Token.dot: |
| if (elementLength == 0) |
| returnStatus ~= elementCount == 0 ? EmailStatusCode.errorDotStart : |
| EmailStatusCode.errorConsecutiveDots; |
| |
| else if (hyphenFlag) |
| returnStatus ~= EmailStatusCode.errorDomainHyphenEnd; |
| |
| else |
| { |
| if (elementLength > 63) |
| returnStatus ~= EmailStatusCode.rfc5322LabelTooLong; |
| } |
| |
| endOrDie = false; |
| elementLength = 0; |
| elementCount++; |
| |
| //atomList[EmailPart.componentDomain][elementCount] = ""; |
| atomList[EmailPart.componentDomain] ~= ""; |
| parseData[EmailPart.componentDomain] ~= token; |
| break; |
| |
| case Token.openBracket: |
| if (parseData[EmailPart.componentDomain] == "") |
| { |
| endOrDie = true; |
| elementLength++; |
| contextStack ~= context; |
| context = EmailPart.componentLiteral; |
| parseData[EmailPart.componentDomain] ~= token; |
| atomList[EmailPart.componentDomain][elementCount] ~= token; |
| parseData[EmailPart.componentLiteral] = ""; |
| } |
| |
| else |
| returnStatus ~= EmailStatusCode.errorExpectingText; |
| break; |
| |
| case Token.cr: |
| case Token.space: |
| case Token.tab: |
| if (token == Token.cr && (++i == email.length || email.get(i, e) != Token.lf)) |
| { |
| returnStatus ~= EmailStatusCode.errorCrNoLf; |
| break; |
| } |
| |
| if (elementLength == 0) |
| { |
| returnStatus ~= elementCount == 0 ? |
| EmailStatusCode.deprecatedCommentFoldingWhitespaceNearAt |
| : EmailStatusCode.deprecatedFoldingWhitespace; |
| } |
| else |
| { |
| returnStatus ~= EmailStatusCode.foldingWhitespace; |
| endOrDie = true; |
| } |
| |
| contextStack ~= context; |
| context = EmailPart.contextFoldingWhitespace; |
| tokenPrior = token; |
| break; |
| |
| default: |
| if (endOrDie) |
| { |
| switch (contextPrior) |
| { |
| case EmailPart.contextComment: |
| case EmailPart.contextFoldingWhitespace: |
| returnStatus ~= EmailStatusCode.errorTextAfterCommentFoldingWhitespace; |
| break; |
| |
| case EmailPart.componentLiteral: |
| returnStatus ~= EmailStatusCode.errorTextAfterDomainLiteral; |
| break; |
| |
| default: |
| throw new Exception("More text found where none is allowed, but " |
| ~"unrecognised prior context: " ~ to!(string)(contextPrior)); |
| } |
| |
| } |
| |
| immutable c = token.front; |
| hyphenFlag = false; |
| |
| if (c < '!' || c > '~' || Token.specials.canFind(token)) |
| returnStatus ~= EmailStatusCode.errorExpectingText; |
| |
| else if (token == Token.hyphen) |
| { |
| if (elementLength == 0) |
| returnStatus ~= EmailStatusCode.errorDomainHyphenStart; |
| |
| hyphenFlag = true; |
| } |
| |
| else if (!((c > '/' && c < ':') || (c > '@' && c < '[') || (c > '`' && c < '{'))) |
| returnStatus ~= EmailStatusCode.rfc5322Domain; |
| |
| parseData[EmailPart.componentDomain] ~= token; |
| atomList[EmailPart.componentDomain][elementCount] ~= token; |
| elementLength++; |
| } |
| break; |
| |
| case EmailPart.componentLiteral: |
| switch (token) |
| { |
| case Token.closeBracket: |
| if (returnStatus.maxElement() < EmailStatusCode.deprecated_) |
| { |
| auto maxGroups = 8; |
| size_t index = -1; |
| auto addressLiteral = parseData[EmailPart.componentLiteral]; |
| auto matchesIp = addressLiteral.matchAll(ipRegex).map!(a => a.hit).array; |
| |
| if (!matchesIp.empty) |
| { |
| index = addressLiteral.lastIndexOf(matchesIp.front); |
| |
| if (index != 0) |
| addressLiteral = addressLiteral[0 .. index] ~ "0:0"; |
| } |
| |
| if (index == 0) |
| returnStatus ~= EmailStatusCode.rfc5321AddressLiteral; |
| |
| else if (addressLiteral.compareFirstN(Token.ipV6Tag, 5)) |
| returnStatus ~= EmailStatusCode.rfc5322DomainLiteral; |
| |
| else |
| { |
| auto ipV6 = addressLiteral[5 .. $]; |
| matchesIp = ipV6.split(Token.colon); |
| immutable groupCount = matchesIp.length; |
| index = ipV6.indexOf(Token.doubleColon); |
| |
| if (index == -1) |
| { |
| if (groupCount != maxGroups) |
| returnStatus ~= EmailStatusCode.rfc5322IpV6GroupCount; |
| } |
| |
| else |
| { |
| if (index != ipV6.lastIndexOf(Token.doubleColon)) |
| returnStatus ~= EmailStatusCode.rfc5322IpV6TooManyDoubleColons; |
| |
| else |
| { |
| if (index == 0 || index == (ipV6.length - 2)) |
| maxGroups++; |
| |
| if (groupCount > maxGroups) |
| returnStatus ~= EmailStatusCode.rfc5322IpV6MaxGroups; |
| |
| else if (groupCount == maxGroups) |
| returnStatus ~= EmailStatusCode.rfc5321IpV6Deprecated; |
| } |
| } |
| |
| if (ipV6[0 .. 1] == Token.colon && ipV6[1 .. 2] != Token.colon) |
| returnStatus ~= EmailStatusCode.rfc5322IpV6ColonStart; |
| |
| else if (ipV6[$ - 1 .. $] == Token.colon && ipV6[$ - 2 .. $ - 1] != Token.colon) |
| returnStatus ~= EmailStatusCode.rfc5322IpV6ColonEnd; |
| |
| else if (!matchesIp |
| .filter!(a => a.matchFirst(fourChars).empty) |
| .empty) |
| returnStatus ~= EmailStatusCode.rfc5322IpV6BadChar; |
| |
| else |
| returnStatus ~= EmailStatusCode.rfc5321AddressLiteral; |
| } |
| } |
| |
| else |
| returnStatus ~= EmailStatusCode.rfc5322DomainLiteral; |
| |
| parseData[EmailPart.componentDomain] ~= token; |
| atomList[EmailPart.componentDomain][elementCount] ~= token; |
| elementLength++; |
| contextPrior = context; |
| context = contextStack.pop(); |
| break; |
| |
| case Token.backslash: |
| returnStatus ~= EmailStatusCode.rfc5322DomainLiteralObsoleteText; |
| contextStack ~= context; |
| context = EmailPart.contextQuotedPair; |
| break; |
| |
| case Token.cr: |
| case Token.space: |
| case Token.tab: |
| if (token == Token.cr && (++i == email.length || email.get(i, e) != Token.lf)) |
| { |
| returnStatus ~= EmailStatusCode.errorCrNoLf; |
| break; |
| } |
| |
| returnStatus ~= EmailStatusCode.foldingWhitespace; |
| contextStack ~= context; |
| context = EmailPart.contextFoldingWhitespace; |
| tokenPrior = token; |
| break; |
| |
| default: |
| immutable c = token.front; |
| |
| if (c > AsciiToken.delete_ || c == '\0' || token == Token.openBracket) |
| { |
| returnStatus ~= EmailStatusCode.errorExpectingDomainText; |
| break; |
| } |
| |
| else if (c < '!' || c == AsciiToken.delete_ ) |
| returnStatus ~= EmailStatusCode.rfc5322DomainLiteralObsoleteText; |
| |
| parseData[EmailPart.componentLiteral] ~= token; |
| parseData[EmailPart.componentDomain] ~= token; |
| atomList[EmailPart.componentDomain][elementCount] ~= token; |
| elementLength++; |
| } |
| break; |
| |
| case EmailPart.contextQuotedString: |
| switch (token) |
| { |
| case Token.backslash: |
| contextStack ~= context; |
| context = EmailPart.contextQuotedPair; |
| break; |
| |
| case Token.cr: |
| case Token.tab: |
| if (token == Token.cr && (++i == email.length || email.get(i, e) != Token.lf)) |
| { |
| returnStatus ~= EmailStatusCode.errorCrNoLf; |
| break; |
| } |
| |
| parseData[EmailPart.componentLocalPart] ~= Token.space; |
| atomList[EmailPart.componentLocalPart][elementCount] ~= Token.space; |
| elementLength++; |
| |
| returnStatus ~= EmailStatusCode.foldingWhitespace; |
| contextStack ~= context; |
| context = EmailPart.contextFoldingWhitespace; |
| tokenPrior = token; |
| break; |
| |
| case Token.doubleQuote: |
| parseData[EmailPart.componentLocalPart] ~= token; |
| atomList[EmailPart.componentLocalPart][elementCount] ~= token; |
| elementLength++; |
| contextPrior = context; |
| context = contextStack.pop(); |
| break; |
| |
| default: |
| immutable c = token.front; |
| |
| if (c > AsciiToken.delete_ || c == '\0' || c == '\n') |
| returnStatus ~= EmailStatusCode.errorExpectingQuotedText; |
| |
| else if (c < ' ' || c == AsciiToken.delete_) |
| returnStatus ~= EmailStatusCode.deprecatedQuotedText; |
| |
| parseData[EmailPart.componentLocalPart] ~= token; |
| atomList[EmailPart.componentLocalPart][elementCount] ~= token; |
| elementLength++; |
| } |
| break; |
| |
| case EmailPart.contextQuotedPair: |
| immutable c = token.front; |
| |
| if (c > AsciiToken.delete_) |
| returnStatus ~= EmailStatusCode.errorExpectingQuotedPair; |
| |
| else if (c < AsciiToken.unitSeparator && c != AsciiToken.horizontalTab || c == AsciiToken.delete_) |
| returnStatus ~= EmailStatusCode.deprecatedQuotedPair; |
| |
| contextPrior = context; |
| context = contextStack.pop(); |
| token = Token.backslash ~ token; |
| |
| switch (context) |
| { |
| case EmailPart.contextComment: break; |
| |
| case EmailPart.contextQuotedString: |
| parseData[EmailPart.componentLocalPart] ~= token; |
| atomList[EmailPart.componentLocalPart][elementCount] ~= token; |
| elementLength += 2; |
| break; |
| |
| case EmailPart.componentLiteral: |
| parseData[EmailPart.componentDomain] ~= token; |
| atomList[EmailPart.componentDomain][elementCount] ~= token; |
| elementLength += 2; |
| break; |
| |
| default: |
| throw new Exception("Quoted pair logic invoked in an invalid context: " ~ to!(string)(context)); |
| } |
| break; |
| |
| case EmailPart.contextComment: |
| switch (token) |
| { |
| case Token.openParenthesis: |
| contextStack ~= context; |
| context = EmailPart.contextComment; |
| break; |
| |
| case Token.closeParenthesis: |
| contextPrior = context; |
| context = contextStack.pop(); |
| break; |
| |
| case Token.backslash: |
| contextStack ~= context; |
| context = EmailPart.contextQuotedPair; |
| break; |
| |
| case Token.cr: |
| case Token.space: |
| case Token.tab: |
| if (token == Token.cr && (++i == email.length || email.get(i, e) != Token.lf)) |
| { |
| returnStatus ~= EmailStatusCode.errorCrNoLf; |
| break; |
| } |
| |
| returnStatus ~= EmailStatusCode.foldingWhitespace; |
| |
| contextStack ~= context; |
| context = EmailPart.contextFoldingWhitespace; |
| tokenPrior = token; |
| break; |
| |
| default: |
| immutable c = token.front; |
| |
| if (c > AsciiToken.delete_ || c == '\0' || c == '\n') |
| { |
| returnStatus ~= EmailStatusCode.errorExpectingCommentText; |
| break; |
| } |
| |
| else if (c < ' ' || c == AsciiToken.delete_) |
| returnStatus ~= EmailStatusCode.deprecatedCommentText; |
| } |
| break; |
| |
| case EmailPart.contextFoldingWhitespace: |
| if (tokenPrior == Token.cr) |
| { |
| if (token == Token.cr) |
| { |
| returnStatus ~= EmailStatusCode.errorFoldingWhitespaceCrflX2; |
| break; |
| } |
| |
| if (crlfCount != int.min) // int.min == not defined |
| { |
| if (++crlfCount > 1) |
| returnStatus ~= EmailStatusCode.deprecatedFoldingWhitespace; |
| } |
| |
| else |
| crlfCount = 1; |
| } |
| |
| switch (token) |
| { |
| case Token.cr: |
| if (++i == email.length || email.get(i, e) != Token.lf) |
| returnStatus ~= EmailStatusCode.errorCrNoLf; |
| break; |
| |
| case Token.space: |
| case Token.tab: |
| break; |
| |
| default: |
| if (tokenPrior == Token.cr) |
| { |
| returnStatus ~= EmailStatusCode.errorFoldingWhitespaceCrLfEnd; |
| break; |
| } |
| |
| crlfCount = int.min; // int.min == not defined |
| contextPrior = context; |
| context = contextStack.pop(); |
| i--; |
| break; |
| } |
| |
| tokenPrior = token; |
| break; |
| |
| default: |
| throw new Exception("Unkown context: " ~ to!(string)(context)); |
| } |
| |
| if (returnStatus.maxElement() > EmailStatusCode.rfc5322) |
| break; |
| } |
| |
| if (returnStatus.maxElement() < EmailStatusCode.rfc5322) |
| { |
| if (context == EmailPart.contextQuotedString) |
| returnStatus ~= EmailStatusCode.errorUnclosedQuotedString; |
| |
| else if (context == EmailPart.contextQuotedPair) |
| returnStatus ~= EmailStatusCode.errorBackslashEnd; |
| |
| else if (context == EmailPart.contextComment) |
| returnStatus ~= EmailStatusCode.errorUnclosedComment; |
| |
| else if (context == EmailPart.componentLiteral) |
| returnStatus ~= EmailStatusCode.errorUnclosedDomainLiteral; |
| |
| else if (token == Token.cr) |
| returnStatus ~= EmailStatusCode.errorFoldingWhitespaceCrLfEnd; |
| |
| else if (parseData[EmailPart.componentDomain] == "") |
| returnStatus ~= EmailStatusCode.errorNoDomain; |
| |
| else if (elementLength == 0) |
| returnStatus ~= EmailStatusCode.errorDotEnd; |
| |
| else if (hyphenFlag) |
| returnStatus ~= EmailStatusCode.errorDomainHyphenEnd; |
| |
| else if (parseData[EmailPart.componentDomain].length > 255) |
| returnStatus ~= EmailStatusCode.rfc5322DomainTooLong; |
| |
| else if ((parseData[EmailPart.componentLocalPart] ~ Token.at ~ parseData[EmailPart.componentDomain]).length > |
| 254) |
| returnStatus ~= EmailStatusCode.rfc5322TooLong; |
| |
| else if (elementLength > 63) |
| returnStatus ~= EmailStatusCode.rfc5322LabelTooLong; |
| } |
| |
| auto dnsChecked = false; |
| |
| if (checkDNS == Yes.checkDns && returnStatus.maxElement() < EmailStatusCode.dnsWarning) |
| { |
| assert(false, "DNS check is currently not implemented"); |
| } |
| |
| if (!dnsChecked && returnStatus.maxElement() < EmailStatusCode.dnsWarning) |
| { |
| if (elementCount == 0) |
| returnStatus ~= EmailStatusCode.rfc5321TopLevelDomain; |
| |
| if (isNumber(atomList[EmailPart.componentDomain][elementCount].front)) |
| returnStatus ~= EmailStatusCode.rfc5321TopLevelDomainNumeric; |
| } |
| |
| returnStatus = array(uniq(returnStatus)); |
| auto finalStatus = returnStatus.maxElement(); |
| |
| if (returnStatus.length != 1) |
| returnStatus.popFront(); |
| |
| parseData[EmailPart.status] = to!(tstring)(returnStatus); |
| |
| if (finalStatus < threshold) |
| finalStatus = EmailStatusCode.valid; |
| |
| if (!diagnose) |
| finalStatus = finalStatus < threshold ? EmailStatusCode.valid : EmailStatusCode.error; |
| |
| auto valid = finalStatus == EmailStatusCode.valid; |
| tstring localPart = ""; |
| tstring domainPart = ""; |
| |
| if (auto value = EmailPart.componentLocalPart in parseData) |
| localPart = *value; |
| |
| if (auto value = EmailPart.componentDomain in parseData) |
| domainPart = *value; |
| |
| return EmailStatus(valid, to!(string)(localPart), to!(string)(domainPart), finalStatus); |
| } |
| |
| @safe unittest |
| { |
| assert(`test.test@iana.org`.isEmail(No.checkDns).statusCode == EmailStatusCode.valid); |
| assert(`test.test@iana.org`.isEmail(No.checkDns, EmailStatusCode.none).statusCode == EmailStatusCode.valid); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:5555:6666::8888]`.isEmail(No.checkDns, |
| EmailStatusCode.none).statusCode == EmailStatusCode.valid); |
| |
| assert(`test`.isEmail(No.checkDns, EmailStatusCode.none).statusCode == EmailStatusCode.error); |
| assert(`(comment)test@iana.org`.isEmail(No.checkDns, EmailStatusCode.none).statusCode == EmailStatusCode.error); |
| |
| assert(``.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorNoDomain); |
| assert(`test`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorNoDomain); |
| assert(`@`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorNoLocalPart); |
| assert(`test@`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorNoDomain); |
| |
| // assert(`test@io`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.valid, |
| // `io. currently has an MX-record (Feb 2011). Some DNS setups seem to find it, some don't.` |
| // ` If you don't see the MX for io. then try setting your DNS server to 8.8.8.8 (the Google DNS server)`); |
| |
| assert(`@io`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorNoLocalPart, |
| `io. currently has an MX-record (Feb 2011)`); |
| |
| assert(`@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorNoLocalPart); |
| assert(`test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.valid); |
| assert(`test@nominet.org.uk`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.valid); |
| assert(`test@about.museum`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.valid); |
| assert(`a@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.valid); |
| |
| //assert(`test@e.com`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.dnsWarningNoRecord); |
| // DNS check is currently not implemented |
| |
| //assert(`test@iana.a`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.dnsWarningNoRecord); |
| // DNS check is currently not implemented |
| |
| assert(`test.test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.valid); |
| assert(`.test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorDotStart); |
| assert(`test.@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorDotEnd); |
| |
| assert(`test .. iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorConsecutiveDots); |
| |
| assert(`test_exa-mple.com`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorNoDomain); |
| assert("!#$%&`*+/=?^`{|}~@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.valid); |
| |
| assert(`test\@test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingText); |
| |
| assert(`123@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.valid); |
| assert(`test@123.com`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.valid); |
| |
| assert(`test@iana.123`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5321TopLevelDomainNumeric); |
| assert(`test@255.255.255.255`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5321TopLevelDomainNumeric); |
| |
| assert(`abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghiklm@iana.org`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.valid); |
| |
| assert(`abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghiklmn@iana.org`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322LocalTooLong); |
| |
| // assert(`test@abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghikl.com`.isEmail(No.checkDns, |
| // EmailStatusCode.any).statusCode == EmailStatusCode.dnsWarningNoRecord); |
| // DNS check is currently not implemented |
| |
| assert(`test@abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghiklm.com`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322LabelTooLong); |
| |
| assert(`test@mason-dixon.com`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.valid); |
| |
| assert(`test@-iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorDomainHyphenStart); |
| |
| assert(`test@iana-.com`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorDomainHyphenEnd); |
| |
| assert(`test@g--a.com`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.valid); |
| |
| //assert(`test@iana.co-uk`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| //EmailStatusCode.dnsWarningNoRecord); // DNS check is currently not implemented |
| |
| assert(`test@.iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorDotStart); |
| assert(`test@iana.org.`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorDotEnd); |
| assert(`test@iana .. com`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorConsecutiveDots); |
| |
| //assert(`a@a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z.a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z` |
| // `.a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z.a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z` |
| // `.a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| // EmailStatusCode.dnsWarningNoRecord); // DNS check is currently not implemented |
| |
| // assert(`abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghiklm@abcdefghijklmnopqrstuvwxyz` |
| // `abcdefghijklmnopqrstuvwxyzabcdefghikl.abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghikl.` |
| // `abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghi`.isEmail(No.checkDns, |
| // EmailStatusCode.any).statusCode == EmailStatusCode.dnsWarningNoRecord); |
| // DNS check is currently not implemented |
| |
| assert((`abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghiklm@abcdefghijklmnopqrstuvwxyz`~ |
| `abcdefghijklmnopqrstuvwxyzabcdefghikl.abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghikl.`~ |
| `abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghij`).isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322TooLong); |
| |
| assert((`a@abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghikl.abcdefghijklmnopqrstuvwxyz`~ |
| `abcdefghijklmnopqrstuvwxyzabcdefghikl.abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghikl.`~ |
| `abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefg.hij`).isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322TooLong); |
| |
| assert((`a@abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghikl.abcdefghijklmnopqrstuvwxyz`~ |
| `abcdefghijklmnopqrstuvwxyzabcdefghikl.abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghikl.`~ |
| `abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefg.hijk`).isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322DomainTooLong); |
| |
| assert(`"test"@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5321QuotedString); |
| |
| assert(`""@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.rfc5321QuotedString); |
| assert(`"""@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorExpectingText); |
| assert(`"\a"@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.rfc5321QuotedString); |
| assert(`"\""@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.rfc5321QuotedString); |
| |
| assert(`"\"@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorUnclosedQuotedString); |
| |
| assert(`"\\"@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.rfc5321QuotedString); |
| assert(`test"@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorExpectingText); |
| |
| assert(`"test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorUnclosedQuotedString); |
| |
| assert(`"test"test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorTextAfterQuotedString); |
| |
| assert(`test"text"@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingText); |
| |
| assert(`"test""test"@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingText); |
| |
| assert(`"test"."test"@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedLocalPart); |
| |
| assert(`"test\ test"@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5321QuotedString); |
| |
| assert(`"test".test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedLocalPart); |
| |
| assert("\"test\u0000\"@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingQuotedText); |
| |
| assert("\"test\\\u0000\"@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedQuotedPair); |
| |
| assert(`"abcdefghijklmnopqrstuvwxyz abcdefghijklmnopqrstuvwxyz abcdefghj"@iana.org`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322LocalTooLong, |
| `Quotes are still part of the length restriction`); |
| |
| assert(`"abcdefghijklmnopqrstuvwxyz abcdefghijklmnopqrstuvwxyz abcdefg\h"@iana.org`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322LocalTooLong, |
| `Quoted pair is still part of the length restriction`); |
| |
| assert(`test@[255.255.255.255]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5321AddressLiteral); |
| |
| assert(`test@a[255.255.255.255]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingText); |
| |
| assert(`test@[255.255.255]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322DomainLiteral); |
| |
| assert(`test@[255.255.255.255.255]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322DomainLiteral); |
| |
| assert(`test@[255.255.255.256]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322DomainLiteral); |
| |
| assert(`test@[1111:2222:3333:4444:5555:6666:7777:8888]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322DomainLiteral); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:5555:6666:7777]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322IpV6GroupCount); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:5555:6666:7777:8888]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode |
| == EmailStatusCode.rfc5321AddressLiteral); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:5555:6666:7777:8888:9999]`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322IpV6GroupCount); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:5555:6666:7777:888G]`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322IpV6BadChar); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:5555:6666::8888]`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5321IpV6Deprecated); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:5555::8888]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5321AddressLiteral); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:5555:6666::7777:8888]`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322IpV6MaxGroups); |
| |
| assert(`test@[IPv6::3333:4444:5555:6666:7777:8888]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322IpV6ColonStart); |
| |
| assert(`test@[IPv6:::3333:4444:5555:6666:7777:8888]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5321AddressLiteral); |
| |
| assert(`test@[IPv6:1111::4444:5555::8888]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322IpV6TooManyDoubleColons); |
| |
| assert(`test@[IPv6:::]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5321AddressLiteral); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:5555:255.255.255.255]`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322IpV6GroupCount); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:5555:6666:255.255.255.255]`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5321AddressLiteral); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:5555:6666:7777:255.255.255.255]`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322IpV6GroupCount); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444::255.255.255.255]`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5321AddressLiteral); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:5555:6666::255.255.255.255]`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322IpV6MaxGroups); |
| |
| assert(`test@[IPv6:1111:2222:3333:4444:::255.255.255.255]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode |
| == EmailStatusCode.rfc5322IpV6TooManyDoubleColons); |
| |
| assert(`test@[IPv6::255.255.255.255]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322IpV6ColonStart); |
| |
| assert(` test @iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedCommentFoldingWhitespaceNearAt); |
| |
| assert(`test@ iana .com`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedCommentFoldingWhitespaceNearAt); |
| |
| assert(`test . test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedFoldingWhitespace); |
| |
| assert("\u000D\u000A test@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.foldingWhitespace, `Folding whitespace`); |
| |
| assert("\u000D\u000A \u000D\u000A test@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedFoldingWhitespace, `FWS with one line composed entirely of WSP`~ |
| ` -- only allowed as obsolete FWS (someone might allow only non-obsolete FWS)`); |
| |
| assert(`(comment)test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.comment); |
| assert(`((comment)test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorUnclosedComment); |
| |
| assert(`(comment(comment))test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.comment); |
| |
| assert(`test@(comment)iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedCommentFoldingWhitespaceNearAt); |
| |
| assert(`test(comment)test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorTextAfterCommentFoldingWhitespace); |
| |
| assert(`test@(comment)[255.255.255.255]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedCommentFoldingWhitespaceNearAt); |
| |
| assert(`(comment)abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghiklm@iana.org`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.comment); |
| |
| assert(`test@(comment)abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghikl.com`.isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.deprecatedCommentFoldingWhitespaceNearAt); |
| |
| assert((`(comment)test@abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghik.abcdefghijklmnopqrstuvwxyz`~ |
| `abcdefghijklmnopqrstuvwxyzabcdefghik.abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijk.`~ |
| `abcdefghijklmnopqrstuvwxyzabcdefghijk.abcdefghijklmnopqrstu`).isEmail(No.checkDns, |
| EmailStatusCode.any).statusCode == EmailStatusCode.comment); |
| |
| assert("test@iana.org\u000A".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingText); |
| |
| assert(`test@xn--hxajbheg2az3al.xn--jxalpdlp`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.valid, `A valid IDN from ICANN's <a href="http://idn.icann.org/#The_example.test_names">`~ |
| `IDN TLD evaluation gateway</a>`); |
| |
| assert(`xn--test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.valid, |
| `RFC 3490: "unless the email standards are revised to invite the use of IDNA for local parts, a domain label`~ |
| ` that holds the local part of an email address SHOULD NOT begin with the ACE prefix, and even if it does,`~ |
| ` it is to be interpreted literally as a local part that happens to begin with the ACE prefix"`); |
| |
| assert(`test@iana.org-`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorDomainHyphenEnd); |
| |
| assert(`"test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorUnclosedQuotedString); |
| |
| assert(`(test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorUnclosedComment); |
| |
| assert(`test@(iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorUnclosedComment); |
| |
| assert(`test@[1.2.3.4`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorUnclosedDomainLiteral); |
| |
| assert(`"test\"@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorUnclosedQuotedString); |
| |
| assert(`(comment\)test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorUnclosedComment); |
| |
| assert(`test@iana.org(comment\)`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorUnclosedComment); |
| |
| assert(`test@iana.org(comment\`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorBackslashEnd); |
| |
| assert(`test@[RFC-5322-domain-literal]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322DomainLiteral); |
| |
| assert(`test@[RFC-5322]-domain-literal]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorTextAfterDomainLiteral); |
| |
| assert(`test@[RFC-5322-[domain-literal]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingDomainText); |
| |
| assert("test@[RFC-5322-\\\u0007-domain-literal]".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322DomainLiteralObsoleteText, `obs-dtext <strong>and</strong> obs-qp`); |
| |
| assert("test@[RFC-5322-\\\u0009-domain-literal]".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322DomainLiteralObsoleteText); |
| |
| assert(`test@[RFC-5322-\]-domain-literal]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322DomainLiteralObsoleteText); |
| |
| assert(`test@[RFC-5322-domain-literal\]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorUnclosedDomainLiteral); |
| |
| assert(`test@[RFC-5322-domain-literal\`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorBackslashEnd); |
| |
| assert(`test@[RFC 5322 domain literal]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322DomainLiteral, `Spaces are FWS in a domain literal`); |
| |
| assert(`test@[RFC-5322-domain-literal] (comment)`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322DomainLiteral); |
| |
| assert("\u007F@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingText); |
| assert("test@\u007F.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingText); |
| assert("\"\u007F\"@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedQuotedText); |
| |
| assert("\"\\\u007F\"@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedQuotedPair); |
| |
| assert("(\u007F)test@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedCommentText); |
| |
| assert("test@iana.org\u000D".isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorCrNoLf, |
| `No LF after the CR`); |
| |
| assert("\u000Dtest@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorCrNoLf, |
| `No LF after the CR`); |
| |
| assert("\"\u000Dtest\"@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorCrNoLf, `No LF after the CR`); |
| |
| assert("(\u000D)test@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorCrNoLf, |
| `No LF after the CR`); |
| |
| assert("(\u000D".isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorCrNoLf, |
| `No LF after the CR`); |
| |
| assert("test@iana.org(\u000D)".isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.errorCrNoLf, |
| `No LF after the CR`); |
| |
| assert("\u000Atest@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingText); |
| |
| assert("\"\u000A\"@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingQuotedText); |
| |
| assert("\"\\\u000A\"@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedQuotedPair); |
| |
| assert("(\u000A)test@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingCommentText); |
| |
| assert("\u0007@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingText); |
| |
| assert("test@\u0007.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingText); |
| |
| assert("\"\u0007\"@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedQuotedText); |
| |
| assert("\"\\\u0007\"@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedQuotedPair); |
| |
| assert("(\u0007)test@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedCommentText); |
| |
| assert("\u000D\u000Atest@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorFoldingWhitespaceCrLfEnd, `Not FWS because no actual white space`); |
| |
| assert("\u000D\u000A \u000D\u000Atest@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorFoldingWhitespaceCrLfEnd, `Not obs-FWS because there must be white space on each "fold"`); |
| |
| assert(" \u000D\u000Atest@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorFoldingWhitespaceCrLfEnd, `Not FWS because no white space after the fold`); |
| |
| assert(" \u000D\u000A test@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.foldingWhitespace, `FWS`); |
| |
| assert(" \u000D\u000A \u000D\u000Atest@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorFoldingWhitespaceCrLfEnd, `Not FWS because no white space after the second fold`); |
| |
| assert(" \u000D\u000A\u000D\u000Atest@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorFoldingWhitespaceCrflX2, `Not FWS because no white space after either fold`); |
| |
| assert(" \u000D\u000A\u000D\u000A test@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorFoldingWhitespaceCrflX2, `Not FWS because no white space after the first fold`); |
| |
| assert("test@iana.org\u000D\u000A ".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.foldingWhitespace, `FWS`); |
| |
| assert("test@iana.org\u000D\u000A \u000D\u000A ".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedFoldingWhitespace, `FWS with one line composed entirely of WSP -- `~ |
| `only allowed as obsolete FWS (someone might allow only non-obsolete FWS)`); |
| |
| assert("test@iana.org\u000D\u000A".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorFoldingWhitespaceCrLfEnd, `Not FWS because no actual white space`); |
| |
| assert("test@iana.org\u000D\u000A \u000D\u000A".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorFoldingWhitespaceCrLfEnd, `Not obs-FWS because there must be white space on each "fold"`); |
| |
| assert("test@iana.org \u000D\u000A".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorFoldingWhitespaceCrLfEnd, `Not FWS because no white space after the fold`); |
| |
| assert("test@iana.org \u000D\u000A ".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.foldingWhitespace, `FWS`); |
| |
| assert("test@iana.org \u000D\u000A \u000D\u000A".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorFoldingWhitespaceCrLfEnd, `Not FWS because no white space after the second fold`); |
| |
| assert("test@iana.org \u000D\u000A\u000D\u000A".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorFoldingWhitespaceCrflX2, `Not FWS because no white space after either fold`); |
| |
| assert("test@iana.org \u000D\u000A\u000D\u000A ".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorFoldingWhitespaceCrflX2, `Not FWS because no white space after the first fold`); |
| |
| assert(" test@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.foldingWhitespace); |
| assert(`test@iana.org `.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.foldingWhitespace); |
| |
| assert(`test@[IPv6:1::2:]`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.rfc5322IpV6ColonEnd); |
| |
| assert("\"test\\\u00A9\"@iana.org".isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.errorExpectingQuotedPair); |
| |
| assert(`test@iana/icann.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.rfc5322Domain); |
| |
| assert(`test.(comment)test@iana.org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| EmailStatusCode.deprecatedComment); |
| |
| assert(`test@org`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.rfc5321TopLevelDomain); |
| |
| // assert(`test@test.com`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == |
| //EmailStatusCode.dnsWarningNoMXRecord, `test.com has an A-record but not an MX-record`); |
| // DNS check is currently not implemented |
| // |
| // assert(`test@nic.no`.isEmail(No.checkDns, EmailStatusCode.any).statusCode == EmailStatusCode.dnsWarningNoRecord, |
| // `nic.no currently has no MX-records or A-records (Feb 2011). If you are seeing an A-record for nic.io then` |
| // ` try setting your DNS server to 8.8.8.8 (the Google DNS server) - your DNS server may be faking an A-record` |
| // ` (OpenDNS does this, for instance).`); // DNS check is currently not implemented |
| } |
| |
| // https://issues.dlang.org/show_bug.cgi?id=17217 |
| @safe unittest |
| { |
| wstring a = `test.test@iana.org`w; |
| dstring b = `test.test@iana.org`d; |
| const(wchar)[] c = `test.test@iana.org`w; |
| const(dchar)[] d = `test.test@iana.org`d; |
| |
| assert(a.isEmail(No.checkDns).statusCode == EmailStatusCode.valid); |
| assert(b.isEmail(No.checkDns).statusCode == EmailStatusCode.valid); |
| assert(c.isEmail(No.checkDns).statusCode == EmailStatusCode.valid); |
| assert(d.isEmail(No.checkDns).statusCode == EmailStatusCode.valid); |
| } |
| |
| /** |
| * Flag for indicating if the isEmail function should perform a DNS check or not. |
| * |
| * If set to $(D CheckDns.no), isEmail does not perform DNS checking. |
| * |
| * Otherwise if set to $(D CheckDns.yes), isEmail performs DNS checking. |
| */ |
| alias CheckDns = Flag!"checkDns"; |
| |
| /// Represents the status of an email address |
| struct EmailStatus |
| { |
| private |
| { |
| bool valid_; |
| string localPart_; |
| string domainPart_; |
| EmailStatusCode statusCode_; |
| } |
| |
| /// Self aliases to a `bool` representing if the email is valid or not |
| alias valid this; |
| |
| /* |
| * Params: |
| * valid = indicates if the email address is valid or not |
| * localPart = the local part of the email address |
| * domainPart = the domain part of the email address |
| * statusCode = the status code |
| */ |
| private this (bool valid, string localPart, string domainPart, EmailStatusCode statusCode) @safe @nogc pure nothrow |
| { |
| this.valid_ = valid; |
| this.localPart_ = localPart; |
| this.domainPart_ = domainPart; |
| this.statusCode_ = statusCode; |
| } |
| |
| /// Returns: If the email address is valid or not. |
| @property bool valid() const @safe @nogc pure nothrow |
| { |
| return valid_; |
| } |
| |
| /// Returns: The local part of the email address, that is, the part before the @ sign. |
| @property string localPart() const @safe @nogc pure nothrow |
| { |
| return localPart_; |
| } |
| |
| /// Returns: The domain part of the email address, that is, the part after the @ sign. |
| @property string domainPart() const @safe @nogc pure nothrow |
| { |
| return domainPart_; |
| } |
| |
| /// Returns: The email status code |
| @property EmailStatusCode statusCode() const @safe @nogc pure nothrow |
| { |
| return statusCode_; |
| } |
| |
| /// Returns: A describing string of the status code |
| @property string status() const @safe @nogc pure nothrow |
| { |
| return statusCodeDescription(statusCode_); |
| } |
| |
| /// Returns: A textual representation of the email status |
| string toString() const @safe pure |
| { |
| import std.format : format; |
| return format("EmailStatus\n{\n\tvalid: %s\n\tlocalPart: %s\n\tdomainPart: %s\n\tstatusCode: %s\n}", valid, |
| localPart, domainPart, statusCode); |
| } |
| } |
| |
| /** |
| * Params: |
| * statusCode = The $(LREF EmailStatusCode) to read |
| * Returns: |
| * A detailed string describing the given status code |
| */ |
| string statusCodeDescription(EmailStatusCode statusCode) @safe @nogc pure nothrow |
| { |
| final switch (statusCode) |
| { |
| // Categories |
| case EmailStatusCode.validCategory: return "Address is valid"; |
| case EmailStatusCode.dnsWarning: return "Address is valid but a DNS check was not successful"; |
| case EmailStatusCode.rfc5321: return "Address is valid for SMTP but has unusual elements"; |
| |
| case EmailStatusCode.cFoldingWhitespace: return "Address is valid within the message but cannot be used"~ |
| " unmodified for the envelope"; |
| |
| case EmailStatusCode.deprecated_: return "Address contains deprecated elements but may still be valid in"~ |
| " restricted contexts"; |
| |
| case EmailStatusCode.rfc5322: return "The address is only valid according to the broad definition of RFC 5322."~ |
| " It is otherwise invalid"; |
| |
| case EmailStatusCode.any: return ""; |
| case EmailStatusCode.none: return ""; |
| case EmailStatusCode.warning: return ""; |
| case EmailStatusCode.error: return "Address is invalid for any purpose"; |
| |
| // Diagnoses |
| case EmailStatusCode.valid: return "Address is valid"; |
| |
| // Address is valid but a DNS check was not successful |
| case EmailStatusCode.dnsWarningNoMXRecord: return "Could not find an MX record for this domain but an A-record"~ |
| " does exist"; |
| |
| case EmailStatusCode.dnsWarningNoRecord: return "Could not find an MX record or an A-record for this domain"; |
| |
| // Address is valid for SMTP but has unusual elements |
| case EmailStatusCode.rfc5321TopLevelDomain: return "Address is valid but at a Top Level Domain"; |
| |
| case EmailStatusCode.rfc5321TopLevelDomainNumeric: return "Address is valid but the Top Level Domain begins"~ |
| " with a number"; |
| |
| case EmailStatusCode.rfc5321QuotedString: return "Address is valid but contains a quoted string"; |
| case EmailStatusCode.rfc5321AddressLiteral: return "Address is valid but at a literal address not a domain"; |
| |
| case EmailStatusCode.rfc5321IpV6Deprecated: return "Address is valid but contains a :: that only elides one"~ |
| " zero group"; |
| |
| |
| // Address is valid within the message but cannot be used unmodified for the envelope |
| case EmailStatusCode.comment: return "Address contains comments"; |
| case EmailStatusCode.foldingWhitespace: return "Address contains Folding White Space"; |
| |
| // Address contains deprecated elements but may still be valid in restricted contexts |
| case EmailStatusCode.deprecatedLocalPart: return "The local part is in a deprecated form"; |
| |
| case EmailStatusCode.deprecatedFoldingWhitespace: return "Address contains an obsolete form of"~ |
| " Folding White Space"; |
| |
| case EmailStatusCode.deprecatedQuotedText: return "A quoted string contains a deprecated character"; |
| case EmailStatusCode.deprecatedQuotedPair: return "A quoted pair contains a deprecated character"; |
| case EmailStatusCode.deprecatedComment: return "Address contains a comment in a position that is deprecated"; |
| case EmailStatusCode.deprecatedCommentText: return "A comment contains a deprecated character"; |
| |
| case EmailStatusCode.deprecatedCommentFoldingWhitespaceNearAt: return "Address contains a comment or"~ |
| " Folding White Space around the @ sign"; |
| |
| // The address is only valid according to the broad definition of RFC 5322 |
| case EmailStatusCode.rfc5322Domain: return "Address is RFC 5322 compliant but contains domain characters that"~ |
| " are not allowed by DNS"; |
| |
| case EmailStatusCode.rfc5322TooLong: return "Address is too long"; |
| case EmailStatusCode.rfc5322LocalTooLong: return "The local part of the address is too long"; |
| case EmailStatusCode.rfc5322DomainTooLong: return "The domain part is too long"; |
| case EmailStatusCode.rfc5322LabelTooLong: return "The domain part contains an element that is too long"; |
| case EmailStatusCode.rfc5322DomainLiteral: return "The domain literal is not a valid RFC 5321 address literal"; |
| |
| case EmailStatusCode.rfc5322DomainLiteralObsoleteText: return "The domain literal is not a valid RFC 5321"~ |
| " address literal and it contains obsolete characters"; |
| |
| case EmailStatusCode.rfc5322IpV6GroupCount: |
| return "The IPv6 literal address contains the wrong number of groups"; |
| |
| case EmailStatusCode.rfc5322IpV6TooManyDoubleColons: |
| return "The IPv6 literal address contains too many :: sequences"; |
| |
| case EmailStatusCode.rfc5322IpV6BadChar: return "The IPv6 address contains an illegal group of characters"; |
| case EmailStatusCode.rfc5322IpV6MaxGroups: return "The IPv6 address has too many groups"; |
| case EmailStatusCode.rfc5322IpV6ColonStart: return "IPv6 address starts with a single colon"; |
| case EmailStatusCode.rfc5322IpV6ColonEnd: return "IPv6 address ends with a single colon"; |
| |
| // Address is invalid for any purpose |
| case EmailStatusCode.errorExpectingDomainText: |
| return "A domain literal contains a character that is not allowed"; |
| |
| case EmailStatusCode.errorNoLocalPart: return "Address has no local part"; |
| case EmailStatusCode.errorNoDomain: return "Address has no domain part"; |
| case EmailStatusCode.errorConsecutiveDots: return "The address may not contain consecutive dots"; |
| |
| case EmailStatusCode.errorTextAfterCommentFoldingWhitespace: |
| return "Address contains text after a comment or Folding White Space"; |
| |
| case EmailStatusCode.errorTextAfterQuotedString: return "Address contains text after a quoted string"; |
| |
| case EmailStatusCode.errorTextAfterDomainLiteral: return "Extra characters were found after the end of"~ |
| " the domain literal"; |
| |
| case EmailStatusCode.errorExpectingQuotedPair: |
| return "The address contains a character that is not allowed in a quoted pair"; |
| |
| case EmailStatusCode.errorExpectingText: return "Address contains a character that is not allowed"; |
| |
| case EmailStatusCode.errorExpectingQuotedText: |
| return "A quoted string contains a character that is not allowed"; |
| |
| case EmailStatusCode.errorExpectingCommentText: return "A comment contains a character that is not allowed"; |
| case EmailStatusCode.errorBackslashEnd: return "The address cannot end with a backslash"; |
| case EmailStatusCode.errorDotStart: return "Neither part of the address may begin with a dot"; |
| case EmailStatusCode.errorDotEnd: return "Neither part of the address may end with a dot"; |
| case EmailStatusCode.errorDomainHyphenStart: return "A domain or subdomain cannot begin with a hyphen"; |
| case EmailStatusCode.errorDomainHyphenEnd: return "A domain or subdomain cannot end with a hyphen"; |
| case EmailStatusCode.errorUnclosedQuotedString: return "Unclosed quoted string"; |
| case EmailStatusCode.errorUnclosedComment: return "Unclosed comment"; |
| case EmailStatusCode.errorUnclosedDomainLiteral: return "Domain literal is missing its closing bracket"; |
| |
| case EmailStatusCode.errorFoldingWhitespaceCrflX2: |
| return "Folding White Space contains consecutive CRLF sequences"; |
| |
| case EmailStatusCode.errorFoldingWhitespaceCrLfEnd: return "Folding White Space ends with a CRLF sequence"; |
| |
| case EmailStatusCode.errorCrNoLf: |
| return "Address contains a carriage return that is not followed by a line feed"; |
| } |
| } |
| |
| /** |
| * An email status code, indicating if an email address is valid or not. |
| * If it is invalid it also indicates why. |
| */ |
| enum EmailStatusCode |
| { |
| // Categories |
| |
| /// Address is valid |
| validCategory = 1, |
| |
| /// Address is valid but a DNS check was not successful |
| dnsWarning = 7, |
| |
| /// Address is valid for SMTP but has unusual elements |
| rfc5321 = 15, |
| |
| /// Address is valid within the message but cannot be used unmodified for the envelope |
| cFoldingWhitespace = 31, |
| |
| /// Address contains deprecated elements but may still be valid in restricted contexts |
| deprecated_ = 63, |
| |
| /// The address is only valid according to the broad definition of RFC 5322. It is otherwise invalid |
| rfc5322 = 127, |
| |
| /** |
| * All finer grained error checking is turned on. Address containing errors or |
| * warnings is considered invalid. A specific email status code will be |
| * returned indicating the error/warning of the address. |
| */ |
| any = 252, |
| |
| /** |
| * Address is either considered valid or not, no finer grained error checking |
| * is performed. Returned email status code will be either Error or Valid. |
| */ |
| none = 253, |
| |
| /** |
| * Address containing warnings is considered valid, that is, |
| * any status code below 16 is considered valid. |
| */ |
| warning = 254, |
| |
| /// Address is invalid for any purpose |
| error = 255, |
| |
| |
| |
| // Diagnoses |
| |
| /// Address is valid |
| valid = 0, |
| |
| // Address is valid but a DNS check was not successful |
| |
| /// Could not find an MX record for this domain but an A-record does exist |
| dnsWarningNoMXRecord = 5, |
| |
| /// Could not find an MX record or an A-record for this domain |
| dnsWarningNoRecord = 6, |
| |
| |
| |
| // Address is valid for SMTP but has unusual elements |
| |
| /// Address is valid but at a Top Level Domain |
| rfc5321TopLevelDomain = 9, |
| |
| /// Address is valid but the Top Level Domain begins with a number |
| rfc5321TopLevelDomainNumeric = 10, |
| |
| /// Address is valid but contains a quoted string |
| rfc5321QuotedString = 11, |
| |
| /// Address is valid but at a literal address not a domain |
| rfc5321AddressLiteral = 12, |
| |
| /// Address is valid but contains a :: that only elides one zero group |
| rfc5321IpV6Deprecated = 13, |
| |
| |
| |
| // Address is valid within the message but cannot be used unmodified for the envelope |
| |
| /// Address contains comments |
| comment = 17, |
| |
| /// Address contains Folding White Space |
| foldingWhitespace = 18, |
| |
| |
| |
| // Address contains deprecated elements but may still be valid in restricted contexts |
| |
| /// The local part is in a deprecated form |
| deprecatedLocalPart = 33, |
| |
| /// Address contains an obsolete form of Folding White Space |
| deprecatedFoldingWhitespace = 34, |
| |
| /// A quoted string contains a deprecated character |
| deprecatedQuotedText = 35, |
| |
| /// A quoted pair contains a deprecated character |
| deprecatedQuotedPair = 36, |
| |
| /// Address contains a comment in a position that is deprecated |
| deprecatedComment = 37, |
| |
| /// A comment contains a deprecated character |
| deprecatedCommentText = 38, |
| |
| /// Address contains a comment or Folding White Space around the @ sign |
| deprecatedCommentFoldingWhitespaceNearAt = 49, |
| |
| |
| |
| // The address is only valid according to the broad definition of RFC 5322 |
| |
| /// Address is RFC 5322 compliant but contains domain characters that are not allowed by DNS |
| rfc5322Domain = 65, |
| |
| /// Address is too long |
| rfc5322TooLong = 66, |
| |
| /// The local part of the address is too long |
| rfc5322LocalTooLong = 67, |
| |
| /// The domain part is too long |
| rfc5322DomainTooLong = 68, |
| |
| /// The domain part contains an element that is too long |
| rfc5322LabelTooLong = 69, |
| |
| /// The domain literal is not a valid RFC 5321 address literal |
| rfc5322DomainLiteral = 70, |
| |
| /// The domain literal is not a valid RFC 5321 address literal and it contains obsolete characters |
| rfc5322DomainLiteralObsoleteText = 71, |
| |
| /// The IPv6 literal address contains the wrong number of groups |
| rfc5322IpV6GroupCount = 72, |
| |
| /// The IPv6 literal address contains too many :: sequences |
| rfc5322IpV6TooManyDoubleColons = 73, |
| |
| /// The IPv6 address contains an illegal group of characters |
| rfc5322IpV6BadChar = 74, |
| |
| /// The IPv6 address has too many groups |
| rfc5322IpV6MaxGroups = 75, |
| |
| /// IPv6 address starts with a single colon |
| rfc5322IpV6ColonStart = 76, |
| |
| /// IPv6 address ends with a single colon |
| rfc5322IpV6ColonEnd = 77, |
| |
| |
| |
| // Address is invalid for any purpose |
| |
| /// A domain literal contains a character that is not allowed |
| errorExpectingDomainText = 129, |
| |
| /// Address has no local part |
| errorNoLocalPart = 130, |
| |
| /// Address has no domain part |
| errorNoDomain = 131, |
| |
| /// The address may not contain consecutive dots |
| errorConsecutiveDots = 132, |
| |
| /// Address contains text after a comment or Folding White Space |
| errorTextAfterCommentFoldingWhitespace = 133, |
| |
| /// Address contains text after a quoted string |
| errorTextAfterQuotedString = 134, |
| |
| /// Extra characters were found after the end of the domain literal |
| errorTextAfterDomainLiteral = 135, |
| |
| /// The address contains a character that is not allowed in a quoted pair |
| errorExpectingQuotedPair = 136, |
| |
| /// Address contains a character that is not allowed |
| errorExpectingText = 137, |
| |
| /// A quoted string contains a character that is not allowed |
| errorExpectingQuotedText = 138, |
| |
| /// A comment contains a character that is not allowed |
| errorExpectingCommentText = 139, |
| |
| /// The address cannot end with a backslash |
| errorBackslashEnd = 140, |
| |
| /// Neither part of the address may begin with a dot |
| errorDotStart = 141, |
| |
| /// Neither part of the address may end with a dot |
| errorDotEnd = 142, |
| |
| /// A domain or subdomain cannot begin with a hyphen |
| errorDomainHyphenStart = 143, |
| |
| /// A domain or subdomain cannot end with a hyphen |
| errorDomainHyphenEnd = 144, |
| |
| /// Unclosed quoted string |
| errorUnclosedQuotedString = 145, |
| |
| /// Unclosed comment |
| errorUnclosedComment = 146, |
| |
| /// Domain literal is missing its closing bracket |
| errorUnclosedDomainLiteral = 147, |
| |
| /// Folding White Space contains consecutive CRLF sequences |
| errorFoldingWhitespaceCrflX2 = 148, |
| |
| /// Folding White Space ends with a CRLF sequence |
| errorFoldingWhitespaceCrLfEnd = 149, |
| |
| /// Address contains a carriage return that is not followed by a line feed |
| errorCrNoLf = 150, |
| } |
| |
| private: |
| |
| // Email parts for the isEmail function |
| enum EmailPart |
| { |
| // The local part of the email address, that is, the part before the @ sign |
| componentLocalPart, |
| |
| // The domain part of the email address, that is, the part after the @ sign. |
| componentDomain, |
| |
| componentLiteral, |
| contextComment, |
| contextFoldingWhitespace, |
| contextQuotedString, |
| contextQuotedPair, |
| status |
| } |
| |
| // Miscellaneous string constants |
| struct TokenImpl(Char) |
| { |
| enum : const(Char)[] |
| { |
| at = "@", |
| backslash = `\`, |
| dot = ".", |
| doubleQuote = `"`, |
| openParenthesis = "(", |
| closeParenthesis = ")", |
| openBracket = "[", |
| closeBracket = "]", |
| hyphen = "-", |
| colon = ":", |
| doubleColon = "::", |
| space = " ", |
| tab = "\t", |
| cr = "\r", |
| lf = "\n", |
| ipV6Tag = "IPV6:", |
| |
| // US-ASCII visible characters not valid for atext (http://tools.ietf.org/html/rfc5322#section-3.2.3) |
| specials = `()<>[]:;@\\,."` |
| } |
| } |
| |
| enum AsciiToken |
| { |
| horizontalTab = 9, |
| unitSeparator = 31, |
| delete_ = 127 |
| } |
| |
| /* |
| * Compare the two given strings lexicographically. An upper limit of the number of |
| * characters, that will be used in the comparison, can be specified. Supports both |
| * case-sensitive and case-insensitive comparison. |
| * |
| * Params: |
| * s1 = the first string to be compared |
| * s2 = the second string to be compared |
| * length = the length of strings to be used in the comparison. |
| * caseInsensitive = if true, a case-insensitive comparison will be made, |
| * otherwise a case-sensitive comparison will be made |
| * |
| * Returns: (for $(D pred = "a < b")): |
| * |
| * $(BOOKTABLE, |
| * $(TR $(TD $(D < 0)) $(TD $(D s1 < s2) )) |
| * $(TR $(TD $(D = 0)) $(TD $(D s1 == s2))) |
| * $(TR $(TD $(D > 0)) $(TD $(D s1 > s2))) |
| * ) |
| */ |
| int compareFirstN(alias pred = "a < b", S1, S2) (S1 s1, S2 s2, size_t length) |
| if (is(Unqual!(ElementType!(S1)) == dchar) && is(Unqual!(ElementType!(S2)) == dchar)) |
| { |
| import std.uni : icmp; |
| auto s1End = length <= s1.length ? length : s1.length; |
| auto s2End = length <= s2.length ? length : s2.length; |
| |
| auto slice1 = s1[0 .. s1End]; |
| auto slice2 = s2[0 .. s2End]; |
| |
| return slice1.icmp(slice2); |
| } |
| |
| @safe unittest |
| { |
| assert("abc".compareFirstN("abcdef", 3) == 0); |
| assert("abc".compareFirstN("Abc", 3) == 0); |
| assert("abc".compareFirstN("abcdef", 6) < 0); |
| assert("abcdef".compareFirstN("abc", 6) > 0); |
| } |
| |
| /* |
| * Pops the last element of the given range and returns the element. |
| * |
| * Params: |
| * range = the range to pop the element from |
| * |
| * Returns: the popped element |
| */ |
| ElementType!(A) pop (A) (ref A a) |
| if (isDynamicArray!(A) && !isNarrowString!(A) && isMutable!(A) && !is(A == void[])) |
| { |
| auto e = a.back; |
| a.popBack(); |
| return e; |
| } |
| |
| @safe unittest |
| { |
| auto array = [0, 1, 2, 3]; |
| auto result = array.pop(); |
| |
| assert(array == [0, 1, 2]); |
| assert(result == 3); |
| } |
| |
| /* |
| * Returns the character at the given index as a string. The returned string will be a |
| * slice of the original string. |
| * |
| * Params: |
| * str = the string to get the character from |
| * index = the index of the character to get |
| * c = the character to return, or any other of the same length |
| * |
| * Returns: the character at the given index as a string |
| */ |
| const(T)[] get (T) (const(T)[] str, size_t index, dchar c) |
| { |
| import std.utf : codeLength; |
| return str[index .. index + codeLength!(T)(c)]; |
| } |
| |
| @safe unittest |
| { |
| assert("abc".get(1, 'b') == "b"); |
| assert("löv".get(1, 'ö') == "ö"); |
| } |
| |
| @safe unittest |
| { |
| assert("abc".get(1, 'b') == "b"); |
| assert("löv".get(1, 'ö') == "ö"); |
| } |
