How Servlet Filter Plugin Module communicate with JIRA software(Not Cloud)

[HongChao Song]

Hi,

   I am confused about communcation mechanism between JIAR software(Not Cloud) and  Plugin Module.

 For example:

   I intend to utilize Servlet Filter Plugin to monitor user behaviors by checking some urls. During that process, I need to some information, such as projects, roles and so on. I  could achive that by calling rest api, but it means http been used  between Plugin and JIAR software, is it correct?

    Somebody could please give me more information?

 Thanks in advance.

[Aleksandr Zuevich]

Hi,

you can inject the dependencies or use static ComponentAccessor methods to get ProjectManager, UserManager and so on.

[HongChao Song]

Could you please give me more info about  communcation mechanism between JIAR software(Not Cloud) and  Plugin Module?

[Aleksandr Zuevich]

You register your servlet-filter in atlassian-plugin.xml, then implements javax.servlet.Filter interface. So now you have access to servletRequest (HttpServletRequest), servletResponse and filterChain objects. E.g. you can also get current user by 

ApplicationUser loggedUser = ComponentAccessor.getJiraAuthenticationContext().getLoggedInUser();

[HongChao Song]

It is very crucial clue, thank you very much.

Could you please give me more inforamtion, such as sample code?

thanks for your support.

[Aleksandr Zuevich]

Please take a look:

public class SprintServletFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest httpServletRequest = (HttpServletRequest) servletRequest;
        RequestWrapper requestWrapper = new RequestWrapper(httpServletRequest);
        ApplicationUser loggedUser = ComponentAccessor.getJiraAuthenticationContext().getLoggedInUser();
        filterChain.doFilter(requestWrapper, servletResponse);
        String requestBody = new String(requestWrapper.getRawData());
        JsonObject jsonObject = new JsonParser().parse(requestBody).getAsJsonObject();
        JsonElement jsonElement = jsonObject.get("sprintId");
        if (!jsonElement.isJsonNull()) {
            Long sprintId = jsonElement.getAsLong();
        }
    }

    @Override
    public void destroy() {

    }
}

[HongChao Song]

thanks.

 ComponentAccessor.getJiraAuthenticationContext().getLoggedInUser()  the result is null, and I tried isLoggedInUser() return false , getUser() return null

I don't know how to deal it, :(.

[Aleksandr Zuevich]

What do you have inside atlassian-plugin.xml?

Example:

<servlet-filter name="Sprint Servlet" key="sprintServlet"
                class="com.xxx.plugins.jira.filter.SprintServletFilter"
                location="before-decoration" weight="200">
    <description>Tackle sprint events</description>
    <url-pattern>/rest/greenhopper/1.0/sprint/*</url-pattern>
</servlet-filter>

[HongChao Song]

thanks , I have fixed this issue by changing  location="after-encoding" to  location="before-decoration" .

Maybe the user info not been injected on the top of chain, I guess