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ropensci / RSelenium

An R client for Selenium Remote WebDriver
https://docs.ropensci.org/RSelenium
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phantomExecute always returns Error in resContent[["status"]] : subscript out of bounds #169

Open AndreMikulec opened 6 years ago

AndreMikulec commented 6 years ago

Whenever, I try to run the simplest javascript through

remDr$phantomExecute

I always get the same error

Error in resContent[["status"]] : subscript out of bounds

From the beginning of the example of ( near the bottom of the HTML page )

PhantomJS writing to file
https://cran.r-project.org/web/packages/RSelenium/vignettes/RSelenium-headless.html
library(RSelenium)
pJS <- phantom()

# Warning: The phantom function in RSelenium
# is now deprecated and will be defunct in future releases.
# Users can drive PhantomJS via selenium using the RSelenium::rsDriver
# function or directly using wdman::phantomjs
#  [INFO  - 2018-04-08T22:04:49.518Z] GhostDriver - Main - running on port 4444

remDr <- remoteDriver(browserName = "phantom")
remDr$open()

# [1] "Connecting to remote server"
# [INFO  - 2018-04-08T22:04:54.556Z] Session [de3cc900-3b78-11e8-a262-0fdb6508725e] - page.settings - {"XSSAuditingEnabled":false,"javascriptCanCloseWindows":true,"javascriptCanOpenWindows":true,"javascriptEnabled":true,"loadImages":true,"localToRemoteUrlAccessEnabled":false,"userAgent":"Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/538.1 (KHTML, like Gecko) PhantomJS/2.1.1 Safari/538.1","webSecurityEnabled":true}
# [INFO  - 2018-04-08T22:04:54.585Z] Session [de3cc900-3b78-11e8-a262-0fdb6508725e] - page.customHeaders:  - {}
# [INFO  - 2018-04-08T22:04:54.589Z] Session [de3cc900-3b78-11e8-a262-0fdb6508725e] - Session.negotiatedCapabilities - {"browserName":"phantomjs","version":"2.1.1","driverName":"ghostdriver","driverVersion":"1.2.0","platform":"windows-10-32bit","javascriptEnabled":true,"takesScreenshot":true,"handlesAlerts":false,"databaseEnabled":false,"locationContextEnabled":false,"applicationCacheEnabled":false,"browserConnectionEnabled":false,"cssSelectorsEnabled":true,"webStorageEnabled":false,"rotatable":false,"acceptSslCerts":false,"nativeEvents":true,"proxy":{"proxyType":"direct"}}
# [INFO  - 2018-04-08T22:04:54.609Z] SessionManagerReqHand - _postNewSessionCommand - New Session Created: de3cc900-3b78-11e8-a262-0fdb6508725e
# $browserName
# [1] "phantomjs"
# 
# $version
# [1] "2.1.1"
# 
# $driverName
# [1] "ghostdriver"
# 
# $driverVersion
# [1] "1.2.0"
# 
# $platform
# [1] "windows-10-32bit"
# 
# $javascriptEnabled
# [1] TRUE
# 
# $takesScreenshot
# [1] TRUE
# 
# $handlesAlerts
# [1] FALSE
# 
# $databaseEnabled
# [1] FALSE
# 
# $locationContextEnabled
# [1] FALSE
# 
# $applicationCacheEnabled
# [1] FALSE
# 
# $browserConnectionEnabled
# [1] FALSE
# 
# $cssSelectorsEnabled
# [1] TRUE
# 
# $webStorageEnabled
# [1] FALSE
# 
# $rotatable
# [1] FALSE
# 
# $acceptSslCerts
# [1] FALSE
# 
# $nativeEvents
# [1] TRUE
# 
# $proxy
# $proxy$proxyType
# [1] "direct"
# 
# 
# $id
# [1] "de3cc900-3b78-11e8-a262-0fdb6508725e"

result <- remDr$phantomExecute("var page = this;")  ## ALWAYS AND ERROR HERE

# [ERROR - 2018-04-08T22:09:03.900Z] RouterReqHand - _handle.error - {"name":"Missing Command Parameter","message":"{\"headers\":{\"Accept\":\"application/json, text/xml, application/xml, */*\",\"Accept-Encoding\":\"gzip, deflate\",\"Content-Length\":\"29\",\"Content-Type\":\"application/json\",\"Host\":\"localhost:4444\",\"User-Agent\":\"libcurl/7.59.0 r-curl/3.2 httr/1.3.1\"},\"httpVersion\":\"1.1\",\"method\":\"POST\",\"post\":\"{\\\"script\\\":\\\"var page = this;\\\"}\",\"url\":\"/phantom/execute\",\"urlParsed\":{\"anchor\":\"\",\"query\":\"\",\"file\":\"execute\",\"directory\":\"/phantom/\",\"path\":\"/phantom/execute\",\"relative\":\"/phantom/execute\",\"port\":\"\",\"host\":\"\",\"password\":\"\",\"user\":\"\",\"userInfo\":\"\",\"authority\":\"\",\"protocol\":\"\",\"source\":\"/phantom/execute\",\"queryKey\":{},\"chunks\":[\"phantom\",\"execute\"]},\"urlOriginal\":\"/session/de3cc900-3b78-11e8-a262-0fdb6508725e/phantom/execute\"}","line":865,"sourceURL":"phantomjs://code/session_request_handler.js","stack":"_executePhantomJS@phantomjs://code/session_request_handler.js:865:73\n_handle@phantomjs://code/session_request_handler.js:166:30\n_reroute@phantomjs://code/request_handler.js:61:20\n_handle@phantomjs://code/router_request_handler.js:78:46"}
# 
#   phantomjs://platform/console++.js:263 in error
# No encoding supplied: defaulting to UTF-8.
# Error in resContent[["status"]] : subscript out of bounds

phantomjs-2.1.1-windows.zip (17.4 MB)
http://phantomjs.org/download.html
> devtools::session_info()
Session info ------------------------------------------------------------------
 setting  value
 version  R version 3.4.4 (2018-03-15)
 system   x86_64, mingw32
 ui       RTerm
 language (EN)
 collate  English_United States.1252
 tz       America/Chicago
 date     2018-04-08

Packages ----------------------------------------------------------------------
 package    * version   date       source
 assertthat   0.2.0     2017-04-11 CRAN (R 3.4.0)
 base       * 3.4.4     2018-03-15 local
 binman       0.1.0     2017-01-14 CRAN (R 3.4.3)
 bitops       1.0-6     2013-08-17 CRAN (R 3.4.0)
 caTools      1.17.1    2014-09-10 CRAN (R 3.4.0)
 compiler     3.4.4     2018-03-15 local
 datasets   * 3.4.4     2018-03-15 local
 devtools     1.13.5    2018-02-18 CRAN (R 3.4.3)
 digest       0.6.15    2018-01-28 CRAN (R 3.4.3)
 graphics   * 3.4.4     2018-03-15 local
 grDevices  * 3.4.4     2018-03-15 local
 magrittr   * 1.5       2014-11-22 CRAN (R 3.4.0)
 memoise      1.1.0     2017-04-21 CRAN (R 3.4.0)
 methods    * 3.4.4     2018-03-15 local
 openssl      1.0.1     2018-03-03 CRAN (R 3.4.3)
 Rcpp         0.12.16   2018-03-13 CRAN (R 3.4.3)
 RSelenium  * 1.7.1     2017-01-24 CRAN (R 3.4.4)
 semver       0.2.0     2017-01-06 CRAN (R 3.4.4)
 stats      * 3.4.4     2018-03-15 local
 tools        3.4.4     2018-03-15 local
 utils      * 3.4.4     2018-03-15 local
 wdman        0.2.2     2017-01-23 CRAN (R 3.4.3)
 withr        2.1.2     2018-03-23 Github (jimhester/withr@79d7b0d)
 XML          3.98-1.10 2018-02-19 CRAN (R 3.4.3)
>
matthijsvanderloos commented 5 years ago

I am having the exact same issue. Has a solution already been found?

matthijsvanderloos commented 5 years ago

Ok, did some more investigation. Apparently you need to provide a list with at least one element for the args argument of phantomExecute. So, for example:

result <- remDr$phantomExecute("var page = this;", list(""))

I think this is a bug that needs to be fixed.