com.atlassian.jira.service.util.handler
Class AbstractMessageHandler

java.lang.Object
  com.atlassian.jira.service.util.handler.AbstractMessageHandler

All Implemented Interfaces:

MessageHandler

Direct Known Subclasses:

AbstractCommentHandler, CreateIssueHandler, CreateOrCommentHandler, CVSLogHandler

public abstract class AbstractMessageHandler
extends Object
implements MessageHandler

An AbstractMessageHandler that stores the parameter map.

TODO Insert summary about other responsibilities/ features of this class.

Attachment processing

This class does a number of things including the processing of parts that need to be saved as attachments within the saveAttachmentIfNecessary(javax.mail.Part, javax.mail.Message, com.opensymphony.user.User, org.ofbiz.core.entity.GenericValue) method.

This method eventually calls others which attempt to locate all parts that are possible candidates and should be kept after it is categorised a part as a particular type. These types are

• Html - content type = text/html
• PlainText - content type = text/plain
• Inline - any part that is not an 'external' attachment. Typically this used to represent an inline image by most email clients
• Attachment - any part that is an 'external' attachment that the user added to the email. These typically represent a binary or file that was attached and accompanies the email.

A few protected methods within this class that are intended for overriding if behaviour needs to be customised. These methods of interest are

• attachAttachmentsParts(javax.mail.Part)
• attachHtmlParts(javax.mail.Part)
• attachInlineParts(javax.mail.Part) is abstract
• attachMessagePart(javax.mail.Part, javax.mail.Message)
• attachPlainTextParts(javax.mail.Part) is abstract

The two abstract attachXXX methods are implemented by sub classes.

Numerous helper methods are available upon the MailUtils class to assist with simple tests.

Field Summary

protected ApplicationProperties	applicationProperties
String	bulk How to handle emails with header: "Precedence: bulk"
String	catchEmail New issues without this recipient are ignored.
protected CommentManager	commentManager
protected static String	CONTENT_TYPE_TEXT
boolean	createUsers Whether to create users if they do not exist
protected boolean	deleteEmail This is a silly protected field that indicates whether the email should be deleted BUT only after the canHandleMessage() method is called.
protected static String	HEADER_IN_REPLY_TO
protected static String	HEADER_MESSAGE_ID
protected IssueFactory	issueFactory
protected static String	KEY_BULK
protected static String	KEY_CATCHEMAIL
protected static String	KEY_CREATEUSERS
protected static String	KEY_FINGER_PRINT
protected static String	KEY_NOTIFYUSERS
protected static String	KEY_REPORTER
boolean	notifyUsers
protected Map	params
String	reporteruserName Username of default reporter, if sender not recognized.

Constructor Summary

protected	AbstractMessageHandler()
protected	AbstractMessageHandler(CommentManager commentManager, IssueFactory issueFactory, ApplicationProperties applicationProperties, JiraApplicationContext jiraApplicationContext)

Method Summary

void	addError(String error)
void	addError(String error, Exception e)
boolean	addErrorAndReturnFalse(String error) Deprecated. Please use addError(String) and return your own false :-) TODO: remove in 4.1
boolean	addErrorAndReturnFalse(String error, Exception e) Deprecated. Please use addError(String, Exception) and return your own false :-) TODO: remove in 4.1
protected boolean	attachAttachmentsParts(javax.mail.Part part) Only attach an attachment part if it's content is not empty and if it is not a signature part.
protected abstract boolean	attachHtmlParts(javax.mail.Part part) This method determines whether or not HTML parts should be attached.
protected boolean	attachInlineParts(javax.mail.Part part) Only attach an inline part if it's content is not empty and if it is not a signature part.
protected boolean	attachMessagePart(javax.mail.Part messagePart, javax.mail.Message containingMessage) JRA-15133: if this part is an attached message, skip it if: the option to ignore attached messages is set to true, OR this message is in reply to the attached one (redundant info), OR if the message is not in reply to the attached one, skip if the content is empty This is required to handle the behaviour of some mail clients (e.g.
protected abstract boolean	attachPlainTextParts(javax.mail.Part part) This method determines whether or not plain text parts should be attached.
protected boolean	attachRelatedPart(javax.mail.Part part) JRA-15670: if this part is contained within a multipart/related message, keep it, as it may be a legitimate attachment, but without the content disposition set to a sensible value (e.g.
protected boolean	canHandleMessage(javax.mail.Message message) Validation call to be made at the start of handleMessage(). It sets a global boolean deleteEmail, whether the email should be deleted if it cannot be handled.
protected Collection<ChangeItemBean>	createAttachmentsForMessage(javax.mail.Message message, org.ofbiz.core.entity.GenericValue issue) Loops through all the Parts, and for each one of type Part.ATTACHMENT, call createAttachmentWithPart(Part,User,GenericValue).
protected ChangeItemBean	createAttachmentWithPart(javax.mail.Part part, User reporter, org.ofbiz.core.entity.GenericValue issue) Create an attachment for a particular mime-part.
protected User	createUserForReporter(javax.mail.Message message) Tries to create a user using the details provided by the reporter.
protected User	findUserByEmail(String emailAddress) Returns the first User found with an email address that equals the given emailAddress case insensitively.
protected User	findUserByUsername(String username) Finds the user with the given username or returns null if there is no such User.
protected org.ofbiz.core.entity.GenericValue	getAssociatedIssue(javax.mail.Message message)
protected MessageErrorHandler	getErrorHandler()
protected File	getFileFromPart(javax.mail.Part part, String issueKey)
protected String	getFilenameForAttachment(javax.mail.Part part) Handy method which takes a number of strategies when attempting to give a filename for a particular part.
protected I18nHelper	getI18nBean()
protected String	getPrecedenceHeader(javax.mail.Message message) Extract the 'Precedence' header value from the message
protected User	getReporter(javax.mail.Message message) Get the reporter from the email address who sent the message, or else create a new user if creating users is set to true, or use the default reporter if one is specified.
abstract boolean	handleMessage(javax.mail.Message message) Perform the specific work of this handler for the given message.
void	init(Map params) Will be called before any messages are to be handled.
protected boolean	isAutoSubmitted(javax.mail.Message message)
protected boolean	isDeliveryStatus(javax.mail.Message message)
protected void	recordMessageId(String type, javax.mail.Message message, Long issueId)
protected String	renameFileIfInvalid(String filename, org.ofbiz.core.entity.GenericValue issue, User reporter) Replaces all invalid characters in the filename using FileNameCharacterCheckerUtil.replaceInvalidChars(String, char) with INVALID_CHAR_REPLACEMENT as the replacement character.
void	setErrorHandler(MessageErrorHandler errorHandler)
protected boolean	shouldAttach(javax.mail.Part part, javax.mail.Message containingMessage) This method determines if a particular part should be included added as an attachment to an issue.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

KEY_REPORTER

protected static final String KEY_REPORTER

See Also:

Constant Field Values

KEY_CATCHEMAIL

protected static final String KEY_CATCHEMAIL

See Also:

Constant Field Values

KEY_CREATEUSERS

protected static final String KEY_CREATEUSERS

See Also:

Constant Field Values

KEY_NOTIFYUSERS

protected static final String KEY_NOTIFYUSERS

See Also:

Constant Field Values

KEY_FINGER_PRINT

protected static final String KEY_FINGER_PRINT

See Also:

Constant Field Values

KEY_BULK

protected static final String KEY_BULK

See Also:

Constant Field Values

CONTENT_TYPE_TEXT

protected static final String CONTENT_TYPE_TEXT

See Also:

Constant Field Values

HEADER_MESSAGE_ID

protected static final String HEADER_MESSAGE_ID

See Also:

Constant Field Values

HEADER_IN_REPLY_TO

protected static final String HEADER_IN_REPLY_TO

See Also:

Constant Field Values

deleteEmail

protected boolean deleteEmail

This is a silly protected field that indicates whether the email should be deleted BUT only after the canHandleMessage() method is called. It is used as a mechanism to indicate two values from from a single method call.

One say it should be lined up against the wall and shot, with a 2 value object returned instead. But in the interests of binary compatibility its left as is for the moment.

params

protected Map params

reporteruserName

public String reporteruserName

Username of default reporter, if sender not recognized.

catchEmail

public String catchEmail

New issues without this recipient are ignored.

bulk

public String bulk

How to handle emails with header: "Precedence: bulk"

createUsers

public boolean createUsers

Whether to create users if they do not exist

notifyUsers

public boolean notifyUsers

commentManager

protected final CommentManager commentManager

issueFactory

protected final IssueFactory issueFactory

applicationProperties

protected final ApplicationProperties applicationProperties

Constructor Detail

AbstractMessageHandler

protected AbstractMessageHandler()

AbstractMessageHandler

protected AbstractMessageHandler(CommentManager commentManager,
                                 IssueFactory issueFactory,
                                 ApplicationProperties applicationProperties,
                                 JiraApplicationContext jiraApplicationContext)

Method Detail

init

public void init(Map params)

Description copied from interface: MessageHandler

Will be called before any messages are to be handled.

Specified by:

init in interface MessageHandler

Parameters:

params - configuration.

handleMessage

public abstract boolean handleMessage(javax.mail.Message message)
                               throws javax.mail.MessagingException

Perform the specific work of this handler for the given message.

Specified by:

handleMessage in interface MessageHandler

Parameters:

message - the message to check for handling.

Returns:

true if the message is to be deleted from the source.

Throws:

javax.mail.MessagingException - if anything went wrong.

canHandleMessage

protected boolean canHandleMessage(javax.mail.Message message)

Validation call to be made at the start of handleMessage().
It sets a global boolean deleteEmail, whether the email should be deleted if it cannot be handled. ie. return deleteEmail if canHandleMessage() is false

Parameters:

message - message to check if it can be handled

Returns:

whether the message should be handled

createAttachmentsForMessage

protected Collection<ChangeItemBean> createAttachmentsForMessage(javax.mail.Message message,
                                                                 org.ofbiz.core.entity.GenericValue issue)
                                                          throws IOException,
                                                                 javax.mail.MessagingException

Loops through all the Parts, and for each one of type Part.ATTACHMENT, call createAttachmentWithPart(Part,User,GenericValue).

Parameters:

message - The multipart message to search for attachments in

issue - The issue to create attachments in

Returns:

a collection of change items, one for each attachment added. If no attachments are added, returns and empty collection.

Throws:

IOException - If there is a problem creating the attachment

javax.mail.MessagingException - If there is a problem reading the message

shouldAttach

protected final boolean shouldAttach(javax.mail.Part part,
                                     javax.mail.Message containingMessage)
                              throws javax.mail.MessagingException,
                                     IOException

This method determines if a particular part should be included added as an attachment to an issue.

Parameters:

part - the part to potentially attach

containingMessage - the message which contained the part - may be null

Returns:

true if the part should be attached; false otherwise

Throws:

IOException - if javamail complains

javax.mail.MessagingException - if javamail complains

attachPlainTextParts

protected abstract boolean attachPlainTextParts(javax.mail.Part part)
                                         throws javax.mail.MessagingException,
                                                IOException

This method determines whether or not plain text parts should be attached.

Parameters:

part - the part to be attached - already determined to be type text/plain.

Returns:

true if the part should be attached; false otherwise

Throws:

IOException - if javamail complains

javax.mail.MessagingException - if javamail complains

attachHtmlParts

protected abstract boolean attachHtmlParts(javax.mail.Part part)
                                    throws javax.mail.MessagingException,
                                           IOException

This method determines whether or not HTML parts should be attached.

Parameters:

part - the part to be attached - already determined to be type text/html.

Returns:

true if the part should be attached; false otherwise

Throws:

IOException - if javamail complains

javax.mail.MessagingException - if javamail complains

attachInlineParts

protected boolean attachInlineParts(javax.mail.Part part)
                             throws javax.mail.MessagingException,
                                    IOException

Only attach an inline part if it's content is not empty and if it is not a signature part.

Parameters:

part - a mail part - assumed to have inline disposition

Returns:

whether or not this inline part should be attached.

Throws:

javax.mail.MessagingException - if Content-Type checks fail

IOException - if content checks fail

attachAttachmentsParts

protected boolean attachAttachmentsParts(javax.mail.Part part)
                                  throws javax.mail.MessagingException,
                                         IOException

Only attach an attachment part if it's content is not empty and if it is not a signature part.

Parameters:

part - a mail part - assumed to have attachment disposition

Returns:

whether or not this inline part should be attached.

Throws:

javax.mail.MessagingException - if Content-Type checks fail

IOException - if content checks fail

attachMessagePart

protected boolean attachMessagePart(javax.mail.Part messagePart,
                                    javax.mail.Message containingMessage)
                             throws IOException,
                                    javax.mail.MessagingException

JRA-15133: if this part is an attached message, skip it if:

• the option to ignore attached messages is set to true, OR
• this message is in reply to the attached one (redundant info), OR
• if the message is not in reply to the attached one, skip if the content is empty

This is required to handle the behaviour of some mail clients (e.g. Outlook) who, when replying to a message, include the entire original message as an attachment with content type "message/rfc822". In these cases, the attached message is redundant information, so we skip it.

Parameters:

messagePart - the Message part (already known to be of message content type)

containingMessage - the original message which contains messagePart

Returns:

true if the part should be attached, false otherwise

Throws:

IOException - if javamail complains

javax.mail.MessagingException - if javamail complains

attachRelatedPart

protected boolean attachRelatedPart(javax.mail.Part part)
                             throws IOException,
                                    javax.mail.MessagingException

JRA-15670: if this part is contained within a multipart/related message, keep it, as it may be a legitimate attachment, but without the content disposition set to a sensible value (e.g. when using Outlook 2007 and Rich Text format).

Parameters:

part - the part contained within the related message

Returns:

true if the part should be attached, false otherwise

Throws:

IOException - if javamail complains

javax.mail.MessagingException - if javamail complains

createAttachmentWithPart

protected ChangeItemBean createAttachmentWithPart(javax.mail.Part part,
                                                  User reporter,
                                                  org.ofbiz.core.entity.GenericValue issue)
                                           throws IOException

Create an attachment for a particular mime-part. The BodyPart must be of type Part.ATTACHMENT.

Parameters:

part - part of disposition Part.ATTACHMENT to create the attachment from

reporter - issue reporter

issue - issue to create attachments in

Returns:

A ChangeItemBean representing the added attachment, or null if no attachment was created

Throws:

IOException - If there is a problem creating the attachment in the filesystem

getFilenameForAttachment

protected String getFilenameForAttachment(javax.mail.Part part)
                                   throws javax.mail.MessagingException,
                                          IOException

Handy method which takes a number of strategies when attempting to give a filename for a particular part. The filename may already be present in the part or may need to be formulated or composed from other identifies within the part (such as a subject, content type etc).

Parameters:

part - The part being tested.

Returns:

The filename for the attachment or null if one was not present.

Throws:

javax.mail.MessagingException - relays any MessagingException thrown by a lower layer such as java mail

IOException - relays any IOExceptions

renameFileIfInvalid

protected String renameFileIfInvalid(String filename,
                                     org.ofbiz.core.entity.GenericValue issue,
                                     User reporter)

Replaces all invalid characters in the filename using FileNameCharacterCheckerUtil.replaceInvalidChars(String, char) with INVALID_CHAR_REPLACEMENT as the replacement character.

Parameters:

filename - filename to check if its valid

issue - issue the file is to be attached

reporter - the author of the comment to add to the issue if the filename is invalid

Returns:

if filename is null, returns null

if its valid, returns filename

if its invalid, returns filename with all invalid characters replaced with INVALID_CHAR_REPLACEMENT

getFileFromPart

protected File getFileFromPart(javax.mail.Part part,
                               String issueKey)
                        throws IOException,
                               javax.mail.MessagingException,
                               org.ofbiz.core.entity.GenericEntityException

Throws:

IOException

javax.mail.MessagingException

org.ofbiz.core.entity.GenericEntityException

getReporter

protected User getReporter(javax.mail.Message message)
                    throws javax.mail.MessagingException

Get the reporter from the email address who sent the message, or else create a new user if creating users is set to true, or use the default reporter if one is specified.

If neither of these are found, return null.

Parameters:

message - The email message to search through.

Returns:

The user who sent the email, or the default reporter, or null.

Throws:

javax.mail.MessagingException - If there is a problem getting the user who created the message.

findUserByUsername

protected User findUserByUsername(String username)

Finds the user with the given username or returns null if there is no such User. Convenience method which doesn't throw up.

Parameters:

username - the username.

Returns:

the User or null.

findUserByEmail

protected User findUserByEmail(String emailAddress)

Returns the first User found with an email address that equals the given emailAddress case insensitively.

Parameters:

emailAddress - the email address to match.

Returns:

the User.

createUserForReporter

protected User createUserForReporter(javax.mail.Message message)

Tries to create a user using the details provided by the reporter. Fails if external user managment is turned on or, if no valid from email address was specified.

Parameters:

message - The original e-mail message.

Returns:

A new user or null.

getPrecedenceHeader

protected String getPrecedenceHeader(javax.mail.Message message)
                              throws javax.mail.MessagingException

Extract the 'Precedence' header value from the message

Throws:

javax.mail.MessagingException

isDeliveryStatus

protected boolean isDeliveryStatus(javax.mail.Message message)
                            throws javax.mail.MessagingException

Throws:

javax.mail.MessagingException

isAutoSubmitted

protected boolean isAutoSubmitted(javax.mail.Message message)
                           throws javax.mail.MessagingException

Throws:

javax.mail.MessagingException

recordMessageId

protected void recordMessageId(String type,
                               javax.mail.Message message,
                               Long issueId)
                        throws javax.mail.MessagingException

Throws:

javax.mail.MessagingException

getAssociatedIssue

protected org.ofbiz.core.entity.GenericValue getAssociatedIssue(javax.mail.Message message)

setErrorHandler

public void setErrorHandler(MessageErrorHandler errorHandler)

Specified by:

setErrorHandler in interface MessageHandler

addError

public void addError(String error)

addError

public void addError(String error,
                     Exception e)

addErrorAndReturnFalse

public boolean addErrorAndReturnFalse(String error)

Deprecated. Please use addError(String) and return your own false :-) TODO: remove in 4.1

addErrorAndReturnFalse

public boolean addErrorAndReturnFalse(String error,
                                      Exception e)

Deprecated. Please use addError(String, Exception) and return your own false :-) TODO: remove in 4.1

getErrorHandler

protected MessageErrorHandler getErrorHandler()

getI18nBean

protected I18nHelper getI18nBean()