闪亮的服务器会话超时不起作用

Question

我在 Linux 服务器上部署了一个闪亮的应用程序。如果一分钟内没有 activity，我希望应用程序超时。根据我阅读的内容，我将行 app_idle_timeout 添加到 shiny-server.conf 文件中，但我注意到它不起作用。有人可以建议我如何确保会话在一分钟后超时吗？注意：我没有闪亮的服务器 PRO。

下面是我闪亮的-server.conf 的样子。

Instruct Shiny Server to run applications as the user "shiny"
run_as shiny;

# Define a server that listens on port 3838
server {
  listen 3838;

  # Define a location at the base URL
  location / {

    # Host the directory of Shiny Apps stored in this directory
    site_dir /srv/shiny-server;

    # Log all Shiny output to files in this directory
    log_dir /var/log/shiny-server;
    app_idle_timeout 60;

    # When a user visits the base URL rather than a particular application,
    # an index of the applications available in this directory will be shown.
    directory_index on;

  }
}
~

Answer 1

会话超时功能在开源闪亮服务器上不可用。它仅作为专业版的一部分提供。

Answer 2

您可以像这样使用一些 JS 在 shiny 应用程序中配置您的 idle 时间，此处应用程序将在 5 秒后超时。

library(shiny)
library(leaflet)

inactivity <- "function idleTimer() {
  var t = setTimeout(logout, 5000);
  window.onmousemove = resetTimer; // catches mouse movements
  window.onmousedown = resetTimer; // catches mouse movements
  window.onclick = resetTimer;     // catches mouse clicks
  window.onscroll = resetTimer;    // catches scrolling
  window.onkeypress = resetTimer;  //catches keyboard actions

  function logout() {
    window.close();  //close the window
  }

  function resetTimer() {
    clearTimeout(t);
    t = setTimeout(logout, 5000);  // time is in milliseconds (1000 is 1 second)
  }
}
idleTimer();"


ui <- fluidPage(
  tags$script(inactivity),    
  leafletOutput("mymap")

)

server <- shinyServer(function(input,output,session){

  points <- eventReactive(input$recalc, {
    cbind(rnorm(40) * 2 + 13, rnorm(40) + 48)
  }, ignoreNULL = FALSE)

  output$mymap <- renderLeaflet({
    leaflet() %>%
      addProviderTiles(providers$Stamen.TonerLite,options = providerTileOptions(noWrap = TRUE)) %>% 
      addMarkers(data = points())
  })

})
runApp(list(ui = ui, server = server))

Answer 3

@PorkChop，感谢您非常有用的回答！

为了完整起见，这里是@PorkChop 代码的一个稍微修改的版本，它不会关闭浏览器选项卡，而是只关闭会话并为用户留下消息：

library(shiny)
library(leaflet)

timeoutSeconds <- 5

inactivity <- sprintf("function idleTimer() {
var t = setTimeout(logout, %s);
window.onmousemove = resetTimer; // catches mouse movements
window.onmousedown = resetTimer; // catches mouse movements
window.onclick = resetTimer;     // catches mouse clicks
window.onscroll = resetTimer;    // catches scrolling
window.onkeypress = resetTimer;  //catches keyboard actions

function logout() {
Shiny.setInputValue('timeOut', '%ss')
}

function resetTimer() {
clearTimeout(t);
t = setTimeout(logout, %s);  // time is in milliseconds (1000 is 1 second)
}
}
idleTimer();", timeoutSeconds*1000, timeoutSeconds, timeoutSeconds*1000)


ui <- fluidPage(
  tags$script(inactivity),    
  leafletOutput("mymap")
)

server <- shinyServer(function(input,output,session){
  
  observeEvent(input$timeOut, { 
    print(paste0("Session (", session$token, ") timed out at: ", Sys.time()))
    showModal(modalDialog(
      title = "Timeout",
      paste("Session timeout due to", input$timeOut, "inactivity -", Sys.time()),
      footer = NULL
    ))
    session$close()
  })
  
  points <- eventReactive(input$recalc, {
    cbind(rnorm(40) * 2 + 13, rnorm(40) + 48)
  }, ignoreNULL = FALSE)
  
  output$mymap <- renderLeaflet({
    leaflet() %>%
      addProviderTiles(providers$Stamen.TonerLite, options = providerTileOptions(noWrap = TRUE)) %>% 
      addMarkers(data = points())
  })
  
})

runApp(list(ui = ui, server = server))

This 非常有帮助。

闪亮的服务器会话超时不起作用

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