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Diffstat (limited to 'mailnews/mime/public/nsIMsgHeaderParser.idl')
| -rw-r--r-- | mailnews/mime/public/nsIMsgHeaderParser.idl | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/mailnews/mime/public/nsIMsgHeaderParser.idl b/mailnews/mime/public/nsIMsgHeaderParser.idl new file mode 100644 index 0000000000..2512623d86 --- /dev/null +++ b/mailnews/mime/public/nsIMsgHeaderParser.idl @@ -0,0 +1,235 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsISupports.idl" + +%{C++ +#define NS_MAILNEWS_MIME_HEADER_PARSER_CONTRACTID \ + "@mozilla.org/messenger/headerparser;1" +%} + +/** + * A structured representation of an address. + * + * This is meant to correspond to the address production from RFC 5322. As a + * result, an instance of this interface is either a single mailbox or a group + * of mailboxes. The difference between the two forms is in which attribute is + * undefined: mailboxes leave the members attribute undefined while groups leave + * the email attribute undefined. + * + * For example, an address like "John Doe <jdoe@machine.example>" will, when + * parsed, result in an instance with the name attribute set to "John Doe", the + * email attribute set to "jdoe@machine.example", and the members variable left + * undefined. + * + * A group like "undisclosed-recipients:;" will, when parsed, result in an + * instance with the name attribute set to "undisclosed-recipients", the email + * attribute left defined, and the members variable set to an empty array. + * + * In general, the attributes of this interface are always meant to be in a form + * suitable for display purposes, and not in a form usable for MIME emission. In + * particular, email addresses could be fully internationalized and non-ASCII, + * RFC 2047-encoded words may appear in names, and the name or email parameters + * are unquoted. + */ +[scriptable, uuid(b19f5636-ebc4-470e-b46c-98b5fc7e88c9)] +interface msgIAddressObject : nsISupports { + /// The name of the mailbox or group. + readonly attribute AString name; + + /// The email of the mailbox. + readonly attribute AString email; + + /** + * The member mailboxes of this group, which may be an empty list. + * + * Due to the limitations of XPIDL, the type of this attribute cannot be + * properly reflected. It is actually an array of msgIAddressObject instances, + * although it is instead undefined if this object does not represent a group. + */ + readonly attribute jsval group; + + /// Return a string form of this object that is suitable for display. + AString toString(); +}; + +/** + * A utility service for manipulating addressing headers in email messages. + * + * This interface is designed primarily for use from JavaScript code; code in + * C++ should use the methods in MimeHeaderParser.h instead, as it is better + * designed to take advantage of C++'s features, particularly with respect to + * arrays. + * + * There are two methods for parsing MIME headers, one for RFC 2047-decoded + * strings, and one for non-RFC 2047-decoded strings. + * + * In general, this API attempts to preserve the format of addresses as + * faithfully as possible. No case normalization is performed at any point. + * However, internationalized email addresses generally need extra processing to + * work properly, so while this API should handle them without issues, consumers + * of this API may fail to work properly when presented with such addresses. To + * ease use for such cases, future versions of the API may incorporate necessary + * normalization steps to make oblivious consumers more likely to work properly. + */ +[scriptable, uuid(af2f9dd1-0226-4835-b981-a4f88b5e97cc)] +interface nsIMsgHeaderParser : nsISupports { + /** + * Parse an address-based header that has not yet been 2047-decoded. + * + * The result of this method is an array of objects described in the above + * comment. Note that the header is a binary string that will be decoded as if + * passed into nsIMimeConverter. + * + * @param aEncodedHeader The RFC 2047-encoded header to parse. + * @param aHeaderCharset The charset to assume for raw octets. + * @param aPreserveGroups If false (the default), the result is a flat array + * of mailbox objects, containing no group objects. + * @return An array corresponding to the header description. + */ + void parseEncodedHeader(in ACString aEncodedHeader, + in string aHeaderCharset, + [optional] in bool aPreserveGroups, + [optional] out unsigned long length, + [retval, array, size_is(length)] + out msgIAddressObject addresses); + + /** + * Parse an address-based header that has been 2047-decoded. + * + * The result of this method is an array of objects described in the above + * comment. Note that the header is a binary string that will be decoded as if + * passed into nsIMimeConverter. + * + * @param aDecodedHeader The non-RFC 2047-encoded header to parse. + * @param aPreserveGroups If false (the default), the result is a flat array + * of mailbox objects, containing no group objects. + * @return An array corresponding to the header description. + */ + void parseDecodedHeader(in AString aDecodedHeader, + [optional] in bool aPreserveGroups, + [optional] out unsigned long length, + [retval, array, size_is(length)] + out msgIAddressObject addresses); + + /** + * Given an array of addresses, make a MIME header suitable for emission. + * + * The return value of this method is not directly suitable for use in a MIME + * message but rather needs to be passed through nsIMimeConverter first to + * have RFC-2047 encoding applied and the resulting output wrapped to adhere + * to maximum line length formats. + * + * @param aAddresses An array corresponding to the header description. + * @param aLength The length of said array of addresses. + * @return A string that is suitable for writing in a MIME message. + */ + AString makeMimeHeader([array, size_is(aLength)] + in msgIAddressObject aAddresses, + in unsigned long aLength); + + /** + * Return the first address in the list in a format suitable for display. + * + * This is largely a convience method for handling From headers (or similar), + * which are expected to only have a single element in them. It is exactly + * equivalent to saying (parseDecodedHeader(decodedHeader))[0].toString(). + * + * @param decodedHeader The non-RFC 2047-encoded header to parse. + * @return The first address, suitable for display. + */ + AString extractFirstName(in AString aDecodedHeader); + + /** + * Returns a copy of the input which may have had some addresses removed. + * Addresses are removed if they are already in either of the supplied + * address lists. + * + * Addresses are considered to be the same if they contain the same email + * part (case-insensitive). Since the email part should never be RFC + * 2047-encoded, this method should work whether or not the header is + * RFC 2047-encoded. + * + * @param aAddrs The addresses to remove duplicates from. + * @param aOtherAddrs Other addresses that the duplicate removal process also + * checks for duplicates against. Addresses in this list + * will not be added to the result. + * @return The original header with duplicate addresses removed. + */ + AUTF8String removeDuplicateAddresses(in AUTF8String aAddrs, + [optional] in AUTF8String aOtherAddrs); + + /// Return a structured mailbox object having the given name and email. + msgIAddressObject makeMailboxObject(in AString aName, in AString aEmail); + + /// Return a structured group object having the given name and members. + msgIAddressObject makeGroupObject(in AString aName, + [array, size_is(aLength)] in msgIAddressObject aMembers, + in unsigned long aLength); + + /** + * Return an array of structured mailbox objects for the given display name + * string. + * + * The string is expected to be a comma-separated sequence of strings that + * would be produced by msgIAddressObject::toString(). For example, the string + * "Bond, James <agent007@mi5.invalid>" would produce one address object, + * while the string "webmaster@nowhere.invalid, child@nowhere.invalid" would + * produce two address objects. + * + * Note that the input string is RFC 2231 and RFC 2047 decoded but no UTF-8 + * decoding takes place. + */ + void makeFromDisplayAddress(in AString aDisplayAddresses, + [optional] out unsigned long count, + [retval, array, size_is(count)] out msgIAddressObject addresses); + + [deprecated] void parseHeadersWithArray(in wstring aLine, + [array, size_is(count)] out wstring aEmailAddresses, + [array, size_is(count)] out wstring aNames, + [array, size_is(count)] out wstring aFullNames, + [retval] out unsigned long count); + + + /** + * Given a string which contains a list of Header addresses, returns a + * comma-separated list of just the `mailbox' portions. + * + * @param aLine The header line to parse. + * @return A comma-separated list of just the mailbox parts + * of the email-addresses. + */ + [deprecated] ACString extractHeaderAddressMailboxes(in ACString aLine); + + /** + * Given a string which contains a list of Header addresses, returns a + * comma-separated list of just the `user name' portions. If any of + * the addresses doesn't have a name, then the mailbox is used instead. + * + * @param aLine The header line to parse. + * @return A comma-separated list of just the name parts + * of the addresses. + */ + [deprecated] AUTF8String extractHeaderAddressNames(in AUTF8String aLine); + + /* + * Like extractHeaderAddressNames, but only returns the first name in the + * header if there is one. This function will return unquoted strings suitable + * for display. + * + * @param aLine The header line to parse. + * @return The first name found in the list. + */ + [deprecated] AUTF8String extractHeaderAddressName(in AUTF8String aLine); + + /** + * Given a name and email address, produce a string that is suitable for + * emitting in a MIME header (after applying RFC 2047 encoding). + * + * @note This is a temporary method. + */ + [deprecated] AString makeMimeAddress(in AString aName, in AString aEmail); +}; + |