/* 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/. */

/*
 * General testing of the JS Mime Emitter to make sure it doesn't choke on any
 *  scenarios.
 *
 * We do not test, but should consider testing:
 * - MimeEncryptedPKCS7, whatever that translates to.
 * - apple double
 * - sun attachment
 */

/*
 * Do not include glodaTestHelper because we do not want gloda loaded and it
 *  adds a lot of runtime overhead which makes certain debugging strategies like
 *  using chronicle-recorder impractical.
 */
load("../../../../resources/logHelper.js");
load("../../../../resources/asyncTestUtils.js");

load("../../../../resources/messageGenerator.js");
load("../../../../resources/messageModifier.js");
load("../../../../resources/messageInjection.js");

// Create a message generator
var msgGen = gMessageGenerator = new MessageGenerator();
// Create a message scenario generator using that message generator
var scenarios = gMessageScenarioFactory = new MessageScenarioFactory(msgGen);

Components.utils.import("resource:///modules/gloda/mimemsg.js");

// While we're at it, we'll also test the correctness of the GlodaAttachment
// representation, esp. its "I just need the part information to rebuild the
// URLs" claim.
Components.utils.import("resource:///modules/gloda/fundattr.js");

var partText = new SyntheticPartLeaf("I am text! Woo!");
var partHtml = new SyntheticPartLeaf(
  "<html><head></head><body>I am HTML! Woo! </body></html>",
  {
    contentType: "text/html"
  }
);
var partEnriched = new SyntheticPartLeaf(
  "<bold><italic>I am not a popular format! sad woo :(</italic></bold>",
  {
    contentType: "text/enriched"
  }
);
var partAlternative = new SyntheticPartMultiAlternative([partText, partHtml]);
var partMailingListFooter = new SyntheticPartLeaf("I am an annoying footer!");

// We need to make sure a part that has content-disposition: attachment, even
// though it doesn't have any filename, still is treated as an attachment.
var tachNoFilename = {
  body: "I like Bordeaux wine",
  contentType: "text/plain",
  disposition: "attachment",
};

// This is an external attachment, i.e. a mime part that basically says "go find
// the attachment on disk, assuming it still exists, here's the path to the file
// on disk". It turns out feed enclosures are presented in the exact same way,
// so this covers this case as well.
var tachExternal = {
  body:
    'You deleted an attachment from this message. The original MIME headers for the attachment were:\n'+
    'Content-Type: image/png;\n'+
    ' name="conversations-bug1.png"\n'+
    'Content-Transfer-Encoding: base64\n'+
    'Content-Disposition: attachment;\n'+
    ' filename="conversations-bug1.png"',
  contentType: 'image/png',
  filename: "conversations-bug1.png",
  charset: null,
  format: null,
  encoding: 'base64',
  extraHeaders: {
    'X-Mozilla-External-Attachment-URL': 'file:///tmp/conversations-bug1.png',
    'X-Mozilla-Altered': 'AttachmentDetached; date="Wed Aug 03 11:11:33 2011"',
  },
};
var tachText = {filename: 'bob.txt', body: 'I like cheese!'};
var partTachText = new SyntheticPartLeaf(tachText.body, tachText);
var tachInlineText = {filename: 'foo.txt', body: 'Rock the mic',
                      format: null, charset: null,
                      disposition: 'inline'};
var partTachInlineText = new SyntheticPartLeaf(tachInlineText.body,
                                               tachInlineText);

var tachImage = {filename: 'bob.png', contentType: 'image/png',
                 encoding: 'base64', charset: null, format: null,
                 body: 'YWJj\n'};
var partTachImage = new SyntheticPartLeaf(tachImage.body, tachImage);

var relImage = {contentType: 'image/png',
                encoding: 'base64', charset: null, format: null,
                contentId: 'part1.foo@bar.invalid',
                body: 'YWJj\n'};
var partRelImage = new SyntheticPartLeaf(relImage.body, relImage);

var tachVCard = {filename: 'bob.vcf', contentType: 'text/x-vcard',
                 encoding: '7bit', body: 'begin:vcard\nfn:Bob\nend:vcard\n'};
var partTachVCard = new SyntheticPartLeaf(tachVCard.body, tachVCard);

var tachApplication = {filename: 'funky.funk',
                       contentType: 'application/x-funky', body: 'funk!'};
var partTachApplication = new SyntheticPartLeaf(tachApplication.body,
                                                tachApplication);

var partTachMessages = [msgGen.makeMessage(), msgGen.makeMessage()];

var partEmpty = new SyntheticDegeneratePartEmpty();

var messageInfos = [
  // -- simple
  {
    name: 'text/plain',
    bodyPart: partText,
  },
  {
    name: 'text/html',
    bodyPart: partHtml,
  },
  // -- simply ugly
  {
    name: 'text/enriched',
    bodyPart: partEnriched,
  },
  // -- simple w/attachment
  {
    name: 'text/plain w/text attachment (=> multipart/mixed)',
    bodyPart: partText,
    attachments: [tachText],
  },
  {
    name: 'text/plain w/image attachment (=> multipart/mixed)',
    bodyPart: partText,
    attachments: [tachImage],
  },
  {
    name: 'text/plain w/vcard attachment (=> multipart/mixed)',
    bodyPart: partText,
    attachments: [tachVCard],
  },
  {
    name: 'text/plain w/app attachment (=> multipart/mixed)',
    bodyPart: partText,
    attachments: [tachApplication],
  },
  {
    name: 'text/html w/text attachment (=> multipart/mixed)',
    bodyPart: partHtml,
    attachments: [tachText],
  },
  {
    name: 'text/html w/image attachment (=> multipart/mixed)',
    bodyPart: partHtml,
    attachments: [tachImage],
  },
  {
    name: 'text/html w/vcard attachment (=> multipart/mixed)',
    bodyPart: partHtml,
    attachments: [tachVCard],
  },
  {
    name: 'text/html w/app attachment (=> multipart/mixed)',
    bodyPart: partHtml,
    attachments: [tachApplication],
  },
  // -- alternatives
  {
    name: 'multipart/alternative: text/plain, text/html',
    bodyPart: partAlternative,
  },
  {
    name: 'multipart/alternative plain/html w/text attachment',
    bodyPart: partAlternative,
    attachments: [tachText],
  },
  {
    name: 'multipart/alternative plain/html w/image attachment',
    bodyPart: partAlternative,
    attachments: [tachImage],
  },
  {
    name: 'multipart/alternative plain/html w/vcard attachment',
    bodyPart: partAlternative,
    attachments: [tachVCard],
  },
  {
    name: 'multipart/alternative plain/html w/app attachment',
    bodyPart: partAlternative,
    attachments: [tachApplication],
  },
  // -- S/MIME.
  {
    name: 'S/MIME alternative',
    bodyPart: new SyntheticPartMultiSignedSMIME(partAlternative),
  },
  {
    name: 'S/MIME alternative with text attachment inside',
    // we have to do the attachment packing ourselves on this one.
    bodyPart: new SyntheticPartMultiSignedSMIME(
      new SyntheticPartMultiMixed([partAlternative, partTachText])),
  },
  {
    name: 'S/MIME alternative with image attachment inside',
    // we have to do the attachment packing ourselves on this one.
    bodyPart: new SyntheticPartMultiSignedSMIME(
      new SyntheticPartMultiMixed([partAlternative, partTachImage])),
  },
  {
    name: 'S/MIME alternative with image attachment inside',
    // we have to do the attachment packing ourselves on this one.
    bodyPart: new SyntheticPartMultiSignedSMIME(
      new SyntheticPartMultiMixed([partAlternative, partTachVCard])),
  },
  {
    name: 'S/MIME alternative with app attachment inside',
    // we have to do the attachment packing ourselves on this one.
    bodyPart: new SyntheticPartMultiSignedSMIME(
      new SyntheticPartMultiMixed([partAlternative, partTachApplication])),
  },
  {
    name: 'S/MIME alternative wrapped in mailing list',
    bodyPart: new SyntheticPartMultiMixed(
      [new SyntheticPartMultiSignedSMIME(partAlternative),
       partMailingListFooter]),
  },
  // -- PGP signature
  // We mainly care that all the content-type parameters show up.
  {
    name: 'PGP signed alternative',
    bodyPart: new SyntheticPartMultiSignedPGP(partAlternative),
  },
  // -- attached RFC822
  {
    // not your average attachment, pack ourselves for now
    name: 'attached rfc822',
    bodyPart: new SyntheticPartMultiMixed([partAlternative,
                                           partTachMessages[0]]),
  },
  // -- multipart/related
  {
    name: 'multipart/related',
    bodyPart: new SyntheticPartMultiRelated([partHtml, partRelImage]),
  },
  {
    name: 'multipart/related inside multipart/alternative',
    bodyPart: new SyntheticPartMultiAlternative([partText,
      new SyntheticPartMultiRelated([partHtml, partRelImage])]),
  },
  // -- multipart/digest
  {
    name: 'multipart/digest',
    bodyPart: new SyntheticPartMultiDigest(partTachMessages.concat()),
  },
  // -- multipart/parallel (allegedly the same as mixed)
  {
    name: 'multipart/parallel',
    bodyPart: new SyntheticPartMultiParallel([partText, partTachImage]),
  },
  // --- previous bugs
  // -- bug 495057, text/enriched was being dumb
  {
    name: 'text/enriched inside related',
    bodyPart: new SyntheticPartMultiRelated([partEnriched]),
  },
  // -- empty sections
  // This was a crasher because the empty part made us try and close the
  //  child preceding the empty part a second time.  The nested multipart led
  //  to the crash providing evidence of the double-close bug but there was
  //  nothing inherently nested-multipart-requiring to trigger the double-close
  //  bug.
  {
    name: 'nested multipart with empty multipart section',
    bodyPart: new SyntheticPartMultiMixed([
        new SyntheticPartMultiRelated([partAlternative, partTachText]),
        partEmpty
      ])
  },
  {
    name: 'empty multipart section produces no child',
    bodyPart: new SyntheticPartMultiMixed([partText, partEmpty, partTachText])
  },
];


function* test_stream_message(info) {
  let synMsg = gMessageGenerator.makeMessage(info);
  let synSet = new SyntheticMessageSet([synMsg]);
  yield add_sets_to_folder(gInbox, [synSet]);

  let msgHdr = synSet.getMsgHdr(0);

  MsgHdrToMimeMessage(msgHdr, null, function(aMsgHdr, aMimeMsg) {
    verify_stream_message(info, synMsg, aMsgHdr, aMimeMsg);
  });

  yield false;
}

var deathToNewlineTypeThings = /[\r\n]+/g;

/**
 * Applies any transformations to the synthetic body part that we would expect
 *  to happen to a message during its libmime journey.  It may be better to
 *  just put the expected translations in the synthetic body part instead of
 *  trying to make this method do anything complex.
 */
function synTransformBody(aSynBodyPart) {
  let text = aSynBodyPart.body.trim();
  // this transforms things into HTML apparently...
  if (aSynBodyPart._contentType == "text/enriched") {
    // Our job here is just to transform just enough for our example above.
    // We also could have provided a manual translation on the body part.
    text = text.replace(/bold/g, "B")
               .replace(/italic/g, "I") + "\n<BR>";
  }
  return text;
}

function verify_body_part_equivalence(aSynBodyPart, aMimePart) {
  // the content-type devoid of parameters should match
  Assert.equal(aSynBodyPart._contentType, aMimePart.contentType);

  // the header representation of the content-type should also match unless
  //  this is an rfc822 part, in which case it should only match for the
  //  actual contents.
  if (aMimePart.contentType != "message/rfc822")
    Assert.equal(aSynBodyPart.contentTypeHeaderValue.replace(
                   deathToNewlineTypeThings, ""),
                 aMimePart.get("content-type").replace(
                   deathToNewlineTypeThings, ""));

  // XXX body part checking will get brittle if we ever actually encode things!
  if (aSynBodyPart.body && !aSynBodyPart._filename &&
      aSynBodyPart._contentType.startsWith("text/"))
    Assert.equal(synTransformBody(aSynBodyPart),
                 aMimePart.body.trim().replace(/\r/g, ""));
  if (aSynBodyPart.parts) {
    let iPart;
    let realPartOffsetCompensator = 0;
    for (iPart = 0; iPart < aSynBodyPart.parts.length; iPart++) {
      let subSyn = aSynBodyPart.parts[iPart];
      // If this is a degenerate empty, it should not produce output, so
      //  compensate for the offset drift and get on with our lives.
      if (subSyn instanceof SyntheticDegeneratePartEmpty) {
        realPartOffsetCompensator--;
        continue;
      }
      let subMime = aMimePart.parts[iPart + realPartOffsetCompensator];
      // our special case is the signature, which libmime does not expose to us.
      // ignore! (also, have our too-many-part checker below not trip on this)
      if (subSyn._contentType != PKCS_SIGNATURE_MIME_TYPE) {
        if (subMime == null)
          do_throw("No MIME part matching " +
                   subSyn.contentTypeHeaderValue + "\n");
        verify_body_part_equivalence(subSyn, subMime);
      }
    }
    // only check if there are still more mime parts; don't check for a count
    //  mismatch (the PKCS case from above needs to be handled)
    if (iPart < aMimePart.parts.length)
      do_throw("MIME part has more sub-parts than syn part?");
  }
}

/**
 * Verify the streamed results are what we wanted.  For now, this just means
 *  receiving a representation; we don't check it for correctness.
 */
function verify_stream_message(aInfo, aSynMsg, aMsgHdr, aMimeMsg) {
  if (aMimeMsg == null)
    do_throw("We really should have gotten a result!");
  try {
    // aMimeMsg is normalized; it only ever actually gets one child...
    verify_body_part_equivalence(aSynMsg.bodyPart, aMimeMsg.parts[0]);
  }
  catch (ex) {
    dump("Something was wrong with the MIME rep!\n!!!!!!!!\n");
    dump("Synthetic looks like:\n  " + aSynMsg.prettyString() +
         "\n\n");
    dump("MIME looks like:  \n" + aMimeMsg.prettyString(true, "  ", true) +
         "\n\n");
    do_throw(ex);
  }

  dump("Everything is just fine.\n");
  dump("Synthetic looks like:\n  " + aSynMsg.prettyString() +
       "\n\n");
  dump("MIME looks like:\n  " + aMimeMsg.prettyString(true, "  ", false) +
       "\n\n");

  async_driver();
}

/**
 * Stream
 */
function* test_sane_bodies() {
  // 60 bytes long... (becomes 59 on the other side when \r is dropped)
  let hugeString =
    "don't know what you want but I can't  stream it anymore...\r\n";
  const powahsOfTwo = 10;
  for (let i = 0; i < powahsOfTwo; i++) {
    hugeString = hugeString + hugeString;
  }
  // this will come out to be 60k, of course.
  Assert.equal(hugeString.length, 60 * Math.pow(2, powahsOfTwo));

  let synMsg = gMessageGenerator.makeMessage(
    {body: {body: hugeString, contentType: "text/plain"}});
  let synSet = new SyntheticMessageSet([synMsg]);
  yield add_sets_to_folder(gInbox, [synSet]);

  let msgHdr = synSet.getMsgHdr(0);

  MsgHdrToMimeMessage(msgHdr, null, function(aMsgHdr, aMimeMsg) {
    let bodyPart = aMimeMsg.parts[0];
    // (the \r gets gone, so it's only 59 per line)
    if (bodyPart.body.length > (20 * 1024 + 59))
      do_throw("Mime body length is " + bodyPart.body.length + " bytes long but should not be!");
    async_driver();
  }, false, {saneBodySize: true});

  yield false;
}

// additional testing for the correctness of allAttachments and
// allUserAttachments representation

var partTachNestedMessages = [
  // Looks like the synthetic part generator appends the charset=ISO-8859-1 part
  // all by itself. That allows us to create a non-UTF-8 subject, and ensure the
  // resulting attachment name is indeed São Paulo.eml.
  msgGen.makeMessage({
    subject: "S"+String.fromCharCode(0xe3)+"o Paulo",
    bodyPart: new SyntheticPartLeaf(
      "<html><head></head><body>I am HTML! Woo! </body></html>",
      {
        contentType: 'text/html',
      }
    )
  }),
  msgGen.makeMessage({
      attachments: [tachImage]
    }),
  msgGen.makeMessage({
      attachments: [tachImage, tachApplication]
    }),
];

var attMessagesParams = [
  {
    attachments: [tachNoFilename],
  },
  {
    attachments: [tachExternal],
  },
  {
    name: 'attached rfc822',
    bodyPart: new SyntheticPartMultiMixed([partAlternative,
                                           partTachNestedMessages[0]]),
  },
  {
    name: 'attached rfc822 w. image inside',
    bodyPart: new SyntheticPartMultiMixed([partAlternative,
                                           partTachNestedMessages[1]]),
  },
  {
    name: 'attached x/funky + attached rfc822 w. (image + x/funky) inside',
    bodyPart: new SyntheticPartMultiMixed([partAlternative,
                                           partTachApplication,
                                           partTachNestedMessages[2]]),
  },
];

var expectedAttachmentsInfo = [
  {
    allAttachmentsContentTypes: ["text/plain"],
    allUserAttachmentsContentTypes: ["text/plain"],
  },
  {
    allAttachmentsContentTypes: ["image/png"],
    allUserAttachmentsContentTypes: ["image/png"],
  },
  {
    allAttachmentsContentTypes: [],
    allUserAttachmentsContentTypes: ["message/rfc822"],
    firstAttachmentName: "S\u00e3o Paulo.eml",
  },
  {
    allAttachmentsContentTypes: ["image/png"],
    allUserAttachmentsContentTypes: ["message/rfc822"]
  },
  {
    allAttachmentsContentTypes: ["application/x-funky", "image/png", "application/x-funky"],
    allUserAttachmentsContentTypes: ["application/x-funky", "message/rfc822"]
  },
];

function* test_attachments_correctness () {
  for (let [i, params] of attMessagesParams.entries()) {
    let synMsg = gMessageGenerator.makeMessage(params);
    let synSet = new SyntheticMessageSet([synMsg]);
    yield add_sets_to_folder(gInbox, [synSet]);

    let msgHdr = synSet.getMsgHdr(0);
    // dump(synMsg.toMboxString()+"\n\n");

    MsgHdrToMimeMessage(msgHdr, null, function(aMsgHdr, aMimeMsg) {
      try {
        let expected = expectedAttachmentsInfo[i];
        if ("firstAttachmentName" in expected) {
          let att = aMimeMsg.allUserAttachments[0];
          Assert.equal(att.name.length, expected.firstAttachmentName.length);
          for (let i = 0; i < att.name.length; ++i)
            Assert.equal(att.name.charCodeAt(i), expected.firstAttachmentName.charCodeAt(i));
        }

        Assert.equal(aMimeMsg.allAttachments.length, expected.allAttachmentsContentTypes.length);
        for (let [j, att] of aMimeMsg.allAttachments.entries())
          Assert.equal(att.contentType, expected.allAttachmentsContentTypes[j]);

        Assert.equal(aMimeMsg.allUserAttachments.length, expected.allUserAttachmentsContentTypes.length);
        for (let [j, att] of aMimeMsg.allUserAttachments.entries())
          Assert.equal(att.contentType, expected.allUserAttachmentsContentTypes[j]);

        // Test
        for (let att of aMimeMsg.allUserAttachments) {
          let uri = aMsgHdr.folder.getUriForMsg(aMsgHdr);
          let glodaAttachment =
            GlodaFundAttr.glodaAttFromMimeAtt({ folderMessageURI: uri }, att);
          // The GlodaAttachment appends the filename, which is not always
          // present
          Assert.ok(glodaAttachment.url.startsWith(att.url));
        }

      } catch (e) {
        dump(aMimeMsg.prettyString()+"\n");
        do_throw(e);
      }

      async_driver();
    }, false);

    yield false;
  }
}

var bogusMessage = msgGen.makeMessage({ body: { body: "whatever" } });
bogusMessage._contentType = "woooooo"; // Breaking abstraction boundaries. Bad.

var weirdMessageInfos = [
  // This message has an unnamed part as an attachment (with
  // Content-Disposition: inline and which is displayable inline). Previously,
  // libmime would emit notifications for this to be treated as an attachment,
  // name Part 1.2. Now it's not the case anymore, so we should ensure this
  // message has no attachments.
  {
    name: 'test message with part 1.2 attachment',
    attachments: [{ body: 'attachment',
                    filename: '',
                    format: '' }],
  },
];

function* test_part12_not_an_attachment() {
  let synMsg = gMessageGenerator.makeMessage(weirdMessageInfos[0]);
  let synSet = new SyntheticMessageSet([synMsg]);
  yield add_sets_to_folder(gInbox, [synSet]);

  let msgHdr = synSet.getMsgHdr(0);
  // dump(synMsg.toMboxString());

  MsgHdrToMimeMessage(msgHdr, null, function(aMsgHdr, aMimeMsg) {
    try {
      Assert.ok(aMimeMsg.allUserAttachments.length == 0);
      Assert.ok(aMimeMsg.allAttachments.length == 0);
    } catch (e) {
      do_throw(e);
    }
    async_driver();
  });

  yield false;
}

/* ===== Driver ===== */

var tests = [
  parameterizeTest(test_stream_message, messageInfos),
  test_sane_bodies,
  test_attachments_correctness,
  test_part12_not_an_attachment,
];

var gInbox;

function run_test() {
  registerCleanupFunction(function() {
    const Cu = Components.utils;
    Cu.import("resource:///modules/gloda/datastore.js");
    GlodaDatastore.shutdown();
  });
  // use mbox injection because the fake server chokes sometimes right now
  gInbox = configure_message_injection({mode: "local"});
  async_run_tests(tests);
}
