Web scraping with R - Non HTML content - Application generated by Firebase - html
I´m trying to access the Corona Virus CSV file hosted on http://covid.saude.gov.br, but there is no HTML content to parse with rvest package. The page is generated by firebase application. Here is the source code of the page.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<title>Coronavírus Brasil</title>
<base href="/"/>
<meta name="viewport"
content="viewport-fit=cover, width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"/>
<meta name="format-detection" content="telephone=no"/>
<meta name="msapplication-tap-highlight" content="no"/>
<link rel="stylesheet" href="https://unpkg.com/leaflet#1.5.1/dist/leaflet.css"
integrity="sha512-xwE/Az9zrjBIphAcBb3F6JVqxf46+CDLwfLMHloNu6KEQCAWi6HcDUbeOfBIptF7tcCzusKFjFw2yuvEpDL9wQ=="
crossorigin=""/>
<link rel="icon" type="image/png" href="assets/imgs/Favicon.png"/>
<!-- add to homescreen for ios -->
<meta name="apple-mobile-web-app-capable" content="yes"/>
<meta name="apple-mobile-web-app-status-bar-style" content="black"/>
<!-- The core Firebase JS SDK is always required and must be listed first -->
<script src="https://www.gstatic.com/firebasejs/7.12.0/firebase-app.js"></script>
<!-- TODO: Add SDKs for Firebase products that you want to use
https://firebase.google.com/docs/web/setup#available-libraries -->
<script src="https://www.gstatic.com/firebasejs/7.12.0/firebase-analytics.js"></script>
<script>
// Your web app's Firebase configuration
var firebaseConfig = {
apiKey: "AIzaSyDoHC6J1pxoKZtLNqNX4UpVWEaGdjy5ATE",
authDomain: "covid-saude.firebaseapp.com",
databaseURL: "https://covid-saude.firebaseio.com",
projectId: "covid-saude",
storageBucket: "covid-saude.appspot.com",
messagingSenderId: "1097006543403",
appId: "1:1097006543403:web:a308f2e4e006a72592706e",
measurementId: "G-VE7NTSSB9X"
};
// Initialize Firebase
firebase.initializeApp(firebaseConfig);
firebase.analytics();
</script>
<link rel="stylesheet" href="styles.f19219a3da5ded85f5db.css"></head>
<body>
<app-root></app-root>
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<script type="text/javascript">
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How can I access the CSV file related to the highlighted link shown ?
corona.saude.gov.br site
When you click the download button you can see the generated url. You can use that with read.csv and specify the ; delimiter
f <- read.csv('https://mobileapps.saude.gov.br/esus-vepi/files/unAFkcaNDeXajurGB7LChj8SgQYS2ptm/1d2b944e065c7304b2754cc386635e38_Download_COVID19_20200430.csv',sep = ';')
View(f)
Though if those initial identifiers vary over time then code would break. In that case using a tool like RSelenium to automate browser and click the download button might be an option.
library(RSelenium)
library(tidyverse)
driver <- RSelenium::rsDriver(browser = "chrome",
chromever =
system2(command = "wmic",
args = 'datafile where name="C:\\\\Program Files (x86)\\\\Google\\\\Chrome\\\\Application\\\\chrome.exe" get Version /value',
stdout = TRUE,
stderr = TRUE) %>%
stringr::str_extract(pattern = "(?<=Version=)\\d+\\.\\d+\\.\\d+\\.") %>%
magrittr::extract(!is.na(.)) %>%
stringr::str_replace_all(pattern = "\\.",
replacement = "\\\\.") %>%
paste0("^", .) %>%
stringr::str_subset(string =
binman::list_versions(appname = "chromedriver") %>%
dplyr::last()) %>%
as.numeric_version() %>%
max() %>%
as.character())
remote_driver <- driver[["client"]]
remote_driver$navigate("https://covid.saude.gov.br")
button_element <- remote_driver$findElement(using = 'class', value = "btn-outline")
button_element$clickElement()
Edit: The website was changed and thus this solution does not work anymore. However, It can be adapted to the new website and thus I'm leaving the answer for future reference.
The download link is generated when the button is clicked and it is in the form
https://mobileapps.saude.gov.br/esus-vepi/files/unAFkcaNDeXajurGB7LChj8SgQYS2ptm/<a_32_digit_hexadecimal_number>_Download_COVID19_<YYYYMMDD>.csv
The link changes each day and while the date part is easy, the 32 digit hexadecimal number also changes and we don't know how it is computed.
I tried to finding some API call using firefox dev tools that could be used to get the link (which javascript function is called to handle the click of the button), but without luck. The packing of the assets makes this very complicated, at least to my experience level, since I'm no web developer.
This leaves us with selenium probably being the only option. Here is a solution in Python, which should not be difficult to adapt to R.
import os
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from time import sleep
URL = "https://covid.saude.gov.br/"
# Create a profile and set some preferences to prevent download dialog
profile = webdriver.FirefoxProfile()
profile.set_preference('browser.download.folderList', 2) # custom location
profile.set_preference('browser.download.manager.showWhenStarting', False)
# The value is the folder where to download to. We are setting the download
# folder as the current folder of the python interpreter by using 'os.getcwd'
profile.set_preference('browser.download.dir', os.getcwd())
profile.set_preference('browser.helperApps.neverAsk.saveToDisk', 'text/csv')
# Create a driver and load the webpage -> This blocks until the page
# You need to install a driver. I'm using a driver for firefox
# See here https://selenium-python.readthedocs.io/installation.html#drivers
driver = webdriver.Firefox(profile)
driver.get(URL)
# The webpage uses shadow-dom in several places, but we can get the download
# button by get all "button"s from the page
buttons = driver.find_elements_by_class_name("button")
# The download button is the third one (index 2)
download_button = buttons[2]
# When we run this script we should wait a bit before clicking the download
# button. I'm waiting 2 seconds to be safe
sleep(2.0)
# Click the button
download_button.click()
# Sleep before closing the driver to allow time for the download. If we close
# the driver to quickly the window will be closed before the download is
# finished
sleep(3.0)
# Close the driver -> This closes the firefox window that was opened by selenium
driver.close()
Note that you need to install a selenium driver before this can be used. Also, you might need to tweek the sleep values that I have used.
Related
How to embed an external widget to a page in Bolt?
I'm trying to embed a booking system widget to my bolt homepage (the one and only homepage, using base-2018 theme). I paste it into the Content window, selecting Source first. Bolt seems to interpret what is going on, as various tags and IDs are highlighted in the code.
The widget code is roughly so:
<div id="bokun [blabla]">Loading...</div>
<p><script type="text/javascript"><br />
var w15;<br />
(function(d, t) {<br />
var host = 'widgets.bokun.io';<br />
var frameUrl = 'https://' + host + '/widgets/15';<br />
var s = d.createElement(t), options = {'host': host, 'frameUrl': frameUrl, 'widgetHash':'w15', 'autoResize':true,'height':'','width':'100%', 'minHeight': 0,'async':true, 'ssl':true, 'affiliateTrackingCode': '', 'transientSession': true, 'cookieLifetime': 43200 };<br />
s.src = 'https://' + host + '/assets/javascripts/widgets/embedder.js';<br />
s.onload = s.onreadystatechange = function() {<br />
var rs = this.readyState; if (rs) if (rs != 'complete') if (rs != 'loaded') return;<br />
try {<br />
w15 = new BokunWidgetEmbedder(); w15.initialize(options); w15.display();<br />
} catch (e) {}<br />
};<br />
var scr = d.getElementsByTagName(t)[0], par = scr.parentNode; par.insertBefore(s, scr);<br />
})(document, 'script');<br />
</script></p>
I have only edited out the unique ID this widget has. Otherwise, this is copied from the provider and works on my current Wordpress site...ALTHOUGH when I paste it into Wordpress, the editor notifies me that "there's something wrong" and offers me to correct it.
How do I insert this? Do I need to create a .js file and reference it in compliance with Twig standards and if so, how do I? I should also note that the widget will redirect to a different page within the same site once you press something within it. Thank you.
Bolt version: 3.6.5
You need to add every tag and attribute that you need into the `config.yml.
how to use webbrowser to open the link when it is clicked in wxPython frame
I am writing a small app using wxPython. I have already save my data into a HTML string. I use the wx.html2.webview to display my HTMl.
And here is my code being simplified:
class MyBrowser(wx.Dialog):
def __init__(self, *args, **kwds):
wx.Dialog.__init__(self, *args, **kwds)
sizer = wx.BoxSizer(wx.VERTICAL)
self.browser = wx.html2.WebView.New(self)
sizer.Add(self.browser, 1, wx.EXPAND, 10)
self.SetSizer(sizer)
self.SetSize((800, 700))
if __name__ == '__main__':
app = wx.App()
dialog = MyBrowser(None, -1)
dialog.browser.SetPage(HTMLstring,"")
dialog.Show()
app.MainLoop()
there are images and links in my HTML string. I have successfully display my HTML string. But my question is :I hope the default webbrowser can open the links when I click on it.
So what should I do. Could someone please provide a link to such an example or (better still), post a short snippet here that shows how to do it?
By the way, I used the wx.HTMLwindow before I found it could not display my HTML string in the right way.
Here is my HTMLstring being simplified:
<html>
<head>
<style type="text/css">
div#container{background-color:#F0F8FF;width:700px}
div#content {height:200px;width:400px;float:left;word-break: break-all;}
div#predict{width:700px;}
.box {height:200px;width:300px;overflow:hidden;background-repeat: no-repeat;background-position:center center;float:left;}
img{margin-top: -50px;}
a:link{ text-decoration:none;}
</style>
</head>
<body>
<br>
<hr />
<p>SCCA Predicted:</p>
<div>
Eye discharge 1.0, Sensation of foreign body 0.99901248481,
</div>
</body></html>
There isn't a good way to do this. You can use webview's EVT_WEBVIEW_NAVIGATING event. However as the documentation notes, if there are multiple frames on the web page, then this event will get fired multiple times. If you want to go that route and try it out, then I would recommend using Python's webbrowser module to open your default browser.
Here's a quick demo:
import webbrowser
import wx
import wx.html2
class MyBrowser(wx.Dialog):
def __init__(self, *args, **kwds):
wx.Dialog.__init__(self, *args, **kwds)
sizer = wx.BoxSizer(wx.VERTICAL)
self.browser = wx.html2.WebView.New(self)
self.browser.Bind(wx.html2.EVT_WEBVIEW_NAVIGATING, self.onNav)
self.browser.Bind(wx.html2.EVT_WEBVIEW_NEWWINDOW, self.onNewWindow)
sizer.Add(self.browser, 1, wx.EXPAND, 10)
self.SetSizer(sizer)
self.SetSize((700, 700))
def onNav(self, event):
print "onNav called"
url = event.GetURL()
print url
webbrowser.open(url)
def onNewWindow(self, event):
print "onNewWindow called"
url = event.GetURL()
print url
webbrowser.open(url)
if __name__ == '__main__':
html = """<html>
<head>
<style type="text/css">
div#container{background-color:#F0F8FF;width:700px}
div#content {height:200px;width:400px;float:left;word-break: break-all;}
div#predict{width:700px;}
.box {height:200px;width:300px;overflow:hidden;background-repeat: no-repeat;background-position:center center;float:left;}
img{margin-top: -50px;}
a:link{ text-decoration:none;}
</style>
</head>
<body>
<br>
<hr />
<p>SCCA Predicted:</p>
<div>
<a href="http://sideeffects.embl.de/se/C0423006" >Eye discharge 1.0, </a><a href="http://sideeffects.embl.de/se/C0423602" >Sensation of foreign body 0.99901248481, </a>
</div>
</body></html>
"""
app = wx.App()
dialog = MyBrowser(None, -1)
dialog.browser.SetPage(html, '')
dialog.Show()
app.MainLoop()
I use the desktop module for that, edited using Mike's example but using desktop module instead of webbrowser.
import wx
import wx.html2
import desktop
html = """
<html>
<head>
<style type="text/css">
div#container{background-color:#F0F8FF;width:700px}
div#content {height:200px;width:400px;float:left;word-break: break-all;}
div#predict{width:700px;}
.box {height:200px;width:300px;overflow:hidden;background-repeat: no-repeat;background-position:center center;float:left;}
img{margin-top: -50px;}
a:link{ text-decoration:none;}
</style>
</head>
<body>
<br>
<hr />
<p>SCCA Predicted:</p>
<div>
<a href="http://sideeffects.embl.de/se/C0423006" >Eye discharge 1.0, </a><a href="http://sideeffects.embl.de/se/C0423602" >Sensation of foreign body 0.99901248481, </a>
</div>
</body></html>
"""
class MyBrowser(wx.Dialog):
def __init__(self, *args, **kwds):
wx.Dialog.__init__(self, *args, **kwds)
sizer = wx.BoxSizer(wx.VERTICAL)
self.browser = wx.html2.WebView.New(self)
self.browser.Bind(wx.html2.EVT_WEBVIEW_NAVIGATING, self.onNav)
sizer.Add(self.browser, 1, wx.EXPAND, 10)
self.SetSizer(sizer)
self.SetSize((700, 700))
def onNav(self, event):
print "onNav called"
url = event.GetURL()
print url
self.openExternal(url)
def openExternal(self, url, doclear=False):
"""
Open an external file with desktop module.
:param `url`: the file url to open in external program
:param `doclear`: clear InfoBar message
"""
wx.BeginBusyCursor()
try:
desktop.open(url.strip())
except OSError:
text = (_(u'Your default browser could not be opened, \
or the external program was not found or no \
external program is defined for this file.'))
wx.EndBusyCursor()
if __name__ == '__main__':
app = wx.App()
with MyBrowser(None, -1) as dlg:
dlg.browser.SetPage(html, '')
dlg.ShowModal()
app.MainLoop()
I also use 'with' to create the dialog, this ensures that it is getting destroyed when one with done with it.
https://pypi.python.org/pypi/desktop
If you need it on Py3 I made some changes which you can get here:
https://bitbucket.org/wbruhin/desktop
IE11 crashs on html5-audio in Citrix XenApp7.6 on Ipad Air with iOS 8.1.3
I'm investigating a curious problem with crashing IE11.
Our Environment is a website running in IE11 deployed via Citrix Xenapp to iPads with Citrix Receiver.
IE11 11.0.9600.17631
XenApp 7.6
Windows 2012 R2
Citrix Receiver 5.9.4
iOS 8.1.3
In approx. 10% the cases of opening the website the crash of IE occurs.
The use case is, that we want to play a sound when buttons are pushed.
Investigation
We nailed it down to the html5 audio tag which causes the trouble.
So we built two minimal examples for reproducing this failure behaviour.
On with plain html5 audio tags and the other with scripted audio elements:
<!-- audio1.html -->
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
</head>
<body>
<audio id="player" controls preload="auto">
<source src="img/sound/beep.mp3" type="audio/mpeg" />
<source src="img/sound/beep.ogg" type="audio/ogg" />
<source src="img/sound/beep.wav" type="audio/wav" />
</audio>
<audio id="player2" controls preload="auto">
<source src="img/sound/beep2.mp3" type="audio/mpeg" />
</audio>
<audio id="player3" controls preload="auto">
<source src="img/sound/beep3.mp3" type="audio/mpeg" />
</audio>
<audio id="player4" controls preload="auto">
<source src="img/sound/beep4.mp3" type="audio/mpeg" />
</audio>
</body>
</html>
<!-- audio2.html -->
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
</head>
<body>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script>
jQuery(document).ready(function() {
function createAudio(url) {
var audio = document.createElement("audio");
audio.setAttribute('preload', 'auto');
audio.setAttribute('controls', 'controls');
audio.setAttribute('type', 'audio/mpeg');
if (audio != null && audio.canPlayType && audio.canPlayType("audio/mpeg")) {
audio.src = url;
}
document.body.appendChild(audio);
return audio;
}
var audio1 = createAudio("img/sound/beep.mp3");
var audio2 = createAudio("img/sound/beep2.mp3");
var audio3 = createAudio("img/sound/beep3.mp3");
var audio4 = createAudio("img/sound/beep4.mp3");
});
</script>
</body>
</html>
Result
With this examples we could reproduce the failure more often
In 20% the website is working normal.
In 10% the audio-players show Ungültige Quelle or Invalid Source.
In 70% the IE crashs.
Crash Dumps
Windows Event Log
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<Level>2</Level>
<Task>100</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2015-03-05T15:39:00.000000000Z" />
<EventRecordID>9994</EventRecordID>
<Channel>Application</Channel>
<Computer>T02.ADL.local</Computer>
<Security />
</System>
<EventData>
<Data>IEXPLORE.EXE</Data>
<Data>11.0.9600.17416</Data>
<Data>5452eed9</Data>
<Data>ntdll.dll</Data>
<Data>6.3.9600.17630</Data>
<Data>54b0d74f</Data>
<Data>c0000005</Data>
<Data>000411d2</Data>
<Data>19d4</Data>
<Data>01d0575a7d7ee406</Data>
<Data>C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE</Data>
<Data>C:\Windows\SYSTEM32\ntdll.dll</Data>
<Data>bdb9a4d8-c34d-11e4-80e9-f246be8a9fe6</Data>
<Data />
<Data />
</EventData>
</Event>
With windbg.exe and !analye -v i got the following crash dump:
************* Symbol Path validation summary **************
Response Time (ms) Location
Deferred SRV*C:\crashdebug\Symbols*http://msdl.microsoft.com/download/symbols
Symbol search path is: SRV*C:\crashdebug\Symbols*http://msdl.microsoft.com/download/symbols
Executable search path is:
Windows 8 Version 9600 MP (4 procs) Free x86 compatible
Product: Server, suite: TerminalServer
Built by: 6.3.9600.17031 (winblue_gdr.140221-1952)
Machine Name:
Debug session time: Fri Feb 27 12:37:14.000 2015 (UTC + 1:00)
System Uptime: 0 days 11:35:11.637
Process Uptime: 0 days 0:01:08.000
................................................................
................................................................
......
Loading unloaded module list
..
This dump file has an exception of interest stored in it.
The stored exception information can be accessed via .ecxr.
(d20.1b10): Access violation - code c0000005 (first/second chance not available)
eax=00000000 ebx=00000000 ecx=43f23b31 edx=7e78d000 esi=00000003 edi=00000003
eip=7756cc2c esp=0d78e78c ebp=0d78e914 iopl=0 nv up ei pl nz na po nc
cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000202
ntdll!NtWaitForMultipleObjects+0xc:
7756cc2c c21400 ret 14h
0:024> !analyze -v
*******************************************************************************
* *
* Exception Analysis *
* *
*******************************************************************************
*** ERROR: Symbol file could not be found. Defaulted to export symbols for ScriptSn.20140828074232.dll -
GetUrlPageData2 (WinHttp) failed: 12007.
FAULTING_IP:
ntdll!RtlEnterCriticalSection+12
775711d2 f00fba3000 lock btr dword ptr [eax],0
EXCEPTION_RECORD: ffffffff -- (.exr 0xffffffffffffffff)
ExceptionAddress: 775711d2 (ntdll!RtlEnterCriticalSection+0x00000012)
ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
Parameter[0]: 00000001
Parameter[1]: 43f23b35
Attempt to write to address 43f23b35
CONTEXT: 00000000 -- (.cxr 0x0;r)
eax=00000000 ebx=00000000 ecx=43f23b31 edx=7e78d000 esi=00000003 edi=00000003
eip=7756cc2c esp=0d78e78c ebp=0d78e914 iopl=0 nv up ei pl nz na po nc
cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000202
ntdll!NtWaitForMultipleObjects+0xc:
7756cc2c c21400 ret 14h
DEFAULT_BUCKET_ID: INVALID_POINTER_WRITE
PROCESS_NAME: iexplore.exe
ERROR_CODE: (NTSTATUS) 0xc0000005 - Die Anweisung in 0x%08lx verweist auf Speicher 0x%08lx. Der Vorgang %s konnte nicht im Speicher durchgef hrt werden.
EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - Die Anweisung in 0x%08lx verweist auf Speicher 0x%08lx. Der Vorgang %s konnte nicht im Speicher durchgef hrt werden.
EXCEPTION_PARAMETER1: 00000001
EXCEPTION_PARAMETER2: 43f23b35
WRITE_ADDRESS: 43f23b35
FOLLOWUP_IP: mfcore!CSampleQueue::Flush+1b
7481999c 68ffffff7f push 7FFFFFFFh
NTGLOBALFLAG: 400
APPLICATION_VERIFIER_FLAGS: 0
APP: iexplore.exe
ANALYSIS_VERSION: 6.3.9600.17298 (debuggers(dbg).141024-1500) amd64fre
FAULTING_THREAD: 00001b10
PRIMARY_PROBLEM_CLASS: INVALID_POINTER_WRITE
BUGCHECK_STR: APPLICATION_FAULT_INVALID_POINTER_WRITE
LAST_CONTROL_TRANSFER: from 7481999c to 775711d2
STACK_TEXT:
0d78f2e4 7481999c 43f23b31 0c2a80d0 43f23939 ntdll!RtlEnterCriticalSection+0x12
0d78f304 7481acd6 00000001 0c2a80d0 43f23939 mfcore!CSampleQueue::Flush+0x1b
0d78f328 747f6c7a 0c2a80d0 0c2a80d0 00000000 mfcore!CSampleQueue::~CSampleQueue+0x17
0d78f364 7483de0d 7483de00 0d78f38c 7481a61e mfcore!CAudStreamSink::~CAudStreamSink+0x120
0d78f370 7481a61e 00000001 0c2a806c 80004005 mfcore!CAudStreamSink::`vector deleting destructor'+0xd
0d78f38c 748cc0ef 0c2a80d0 0c2a7f08 0c2a7f50 mfcore!CAudStreamSink::Release+0x4e
0d78f3ac 747eec7d 00000000 0d78f448 0d78f3d0 mfcore!CAudioMediaSink::InternalCreateStreamSink+0xdd3a8
0d78f3d8 747eeba0 0d78f3f4 0d78f448 00000000 mfcore!CAudioMediaSink::CAudioMediaSink+0xb1
0d78f3f8 747eeafe 0c2b7380 00000000 0c2b73b8 mfcore!CAudioMediaSink::CreateInstance+0x30
0d78f4a8 747ee809 0c2b7380 0c2b73b8 0d78f520 mfcore!MFCreateAudioRenderer+0x2be
0d78f4c0 7483a03d 0c2b7380 7483a000 0c2dfa60 mfcore!CMFAudioRendererActivate::InstantiateMediaObject+0x29
0d78f4d8 74839fdf 747c4a80 0d78f520 0c2dfb98 mfcore!CMFActivate::DoActivate+0x3d
0d78f4f4 747f205a 0c2b7380 747c4a80 0d78f520 mfcore!CMFActivate::ActivateObject+0x2f
0d78f52c 747f1f91 05a0d670 0c2b7380 00000000 mfcore!CMediaSession::BindOutputNode+0x75
0d78f56c 74938512 0c2a6ab8 00000000 748c3320 mfcore!CMediaSession::BindOutputNodes+0x10e
0d78f5b4 747efaa1 05a0fd08 05a0fd08 747efa30 mfcore!CMediaSession::OpQueueTopology+0x32b
0d78f5d8 74819621 05a0fd08 0c2b74e8 74819580 mfcore!CMediaSession::DispatchOperation+0x71
0d78f5f8 74819591 74819580 0d78f63c 74c02459 mfcore!COpQueue::ProcessMarshalledOperations+0x85
0d78f604 74c02459 0c2dfa7c 0c2b74e8 0c211f40 mfcore!COpQueue::ProcessMarshalledOperationsAsyncCallback::Invoke+0x11
0d78f63c 74bf72e9 0c26c788 031cef88 74bf7240 RTWorkQ!CSerialWorkQueue::QueueItem::ExecuteWorkItem+0x1b2
0d78f674 77553cc7 0d78f6f8 0c211f40 031cef88 RTWorkQ!ThreadPoolWorkCallback+0xa9
0d78f6b4 775514b1 0d78f6f8 031cefe8 035d296c ntdll!TppWorkpExecuteCallback+0x137
0d78f84c 76de7c04 085b1e48 76de7be0 02dce3d3 ntdll!TppWorkerThread+0x48e
0d78f860 7758b5af 085b1e48 035d2988 00000000 kernel32!BaseThreadInitThunk+0x24
0d78f8a8 7758b57a ffffffff 77570411 00000000 ntdll!__RtlUserThreadStart+0x2f
0d78f8b8 00000000 77544b50 085b1e48 00000000 ntdll!_RtlUserThreadStart+0x1b
SYMBOL_STACK_INDEX: 1
SYMBOL_NAME: mfcore!CSampleQueue::Flush+1b
FOLLOWUP_NAME: MachineOwner
MODULE_NAME: mfcore
IMAGE_NAME: mfcore.dll
DEBUG_FLR_IMAGE_TIMESTAMP: 545036e9
STACK_COMMAND: ~24s; .ecxr ; kb
FAILURE_BUCKET_ID: INVALID_POINTER_WRITE_c0000005_mfcore.dll!CSampleQueue::Flush
BUCKET_ID: APPLICATION_FAULT_INVALID_POINTER_WRITE_mfcore!CSampleQueue::Flush+1b
ANALYSIS_SOURCE: UM
FAILURE_ID_HASH_STRING: um:invalid_pointer_write_c0000005_mfcore.dll!csamplequeue::flush
FAILURE_ID_HASH: {0351a28f-6605-92a0-dcfc-74117e20afcb}
Followup: MachineOwner
As I understand the crash dump IE crashs by registering an audio device. propably for citrix.?
Other attemps for solving this issue
The mp3-files are on the same server
The problem occurs wether the site is deployed via PHP and Apache or NodeJS
Latest Firefox and Chrome (40.0.2214.93) are showing the sites correctly.
Opening the site via Console as Admin IE11 doesn't crashs but shows Invalid Source in most times
Citrix HdxMediaStreamForFlash registry-keys were set.
Server does not compress the mp3s and sends them with MIME audio/mpeg.
Other already regarded Questions from SO with no suitable solution for our problem
How do I get a HTML5 Video to work using IE10
IE10 not playing a video when using the <video> tag, but plays it when requesting the video directly
HTML5 audio element do not work in IE10, but works in Chrome. Why?
"Error: Unsupported audio type or invalid file path" for HTML5 Audio tag in Internet Explorer 10
IE10 Windows7 -- Audio tag never plays audio?
Finally
My problem is now, that i have no idea, what to do to solve this problem.
Is it windows problem, a citrix problem, an iOS problem? Or is it a combination of all
of them.
Does anybody knows a workaround for it?
Or is there another point from which i can start another debugging attempt?
If you need more data, please let me know.
Update 2015-03-10
It is not a problem with iOS or Citrix Receiver, because the crash crash also appeard on a Samsung Galaxy Tab.
The crash occurs for the first time about three and a half hours after a server reboot
Is the XenApp server configured to enable Windows media redirection, ref: http://support.citrix.com/proddocs/topic/xenapp65-admin/ps-sf-media-speed-screen-acceleration-config-all-v2.html. If so, does disabling it fix the issue? The current documentation for Citrix Receiver for IOS has information about settings on this page for media redirection too, ref: http://support.citrix.com/proddocs/topic/receiver-ios-59/receivers-ios-about.html Recommends free space.
For completeness, this were my workarounds: Reduced the use of audio to a minimum Rebooting the windows servers every night (Enough for 20 sessions per server per day with 8 hours of active use each) Our final fix was upgrading to Windows Server 2016 and Citrix Xenapp 7.15 and there, this problem does not occur. The tickets we opened at microsoft and citrix were closed/rejected with "No problem with our software, it must be the other vendors."
Permission Denied when Using [objshell browseforfolder] in vbs on html page
I am trying to use [objshell browseforfolder] with vbs in HTML to make a folder browser. It is working fine in hta but when I put it into html page, it always show me that permission denied. I did some research on this, looks like IE does not support folder browse for security reason.....so my question is that is there anyway to make it work? I m using it on a internal page, so security wont be an issue.....
Here is the code:
<html>
<head>
<script language = "VBScript">
Sub ChooseSaveFolder_OnClick()
strStartDir = "c:\work"
userselections.txtFile.value = PickFolder(strStartDir)
End Sub
Function PickFolder(strStartDir)
Dim SA, F
Set SA = CreateObject("Shell.Application")
Set F = SA.BrowseForFolder(0, "Choose a folder", 0, strStartDir)
If (Not F Is Nothing) Then
PickFolder = F.Items.Item.path
End If
Set F = Nothing
Set SA = Nothing
End Function
</script>
</head>
<body>
<form name="userselections">
<input type = "text" name = "txtFile" size="50" />
<input type = "button" value = "Browse ..." Name="ChooseSaveFolder">
</form>
</body>
</html>
Enable tabbed product display in BigCommerce
By default, product information is displayed in an accordion format, e.g., "details, specs, warranty," etc. BigCommerce offers an option to display in tabbed format, but it doesn't work in any of the templates I have tried. In user settings, there is a check box to "enable tabbed format." Checking it does nothing. It's bug fix time and I can't quite get it. Here are the two files in question (I think): %%GLOBAL_ProductTabsControlScript%% <div class="Panel" id="ProductTabs"> <script type="text/javascript"> lang.Description = '%%LNG_JS_Description%%'; lang.Warranty = '%%LNG_JS_Warranty%%'; lang.OtherDetails = '%%LNG_JS_OtherDetails%%'; lang.ProductTags = '%%LNG_JS_Tags%%'; lang.SimilarProducts = '%%LNG_JS_SimilarProducts%%'; lang.Reviews = '%%LNG_JS_Reviews%%'; lang.OtherProducts = '%%LNG_JS_OtherProducts%%'; lang.ProductVideos = '%%LNG_JS_ProductVideos%%'; lang.SimilarProductsByCustomerViews = '%%LNG_JS_SimilarProductsByCustomerViews%%'; </script> %%GLOBAL_ProductTabsOptimizerScriptTag%% <!-- Remove the code from here to create the no product tabs version of the product page <ul class="TabNav" id="ProductTabsList"> </ul> <script language="javascript" type="text/javascript">//<![CDATA[ var HideProductTabs = 0; //]]></script> %%GLOBAL_ProductTabsOptimizerNoScriptTag%% --> </div> And then here is the call in the actual single products (Panels/ProductDetails.html) file %%Panel.ProductTabs%% <div id="prodAccordion"> %%Panel.ProductDescription%% %%Panel.ProductVideos%% %%Panel.ProductWarranty%% %%Panel.ProductOtherDetails%% %%Panel.SimilarProductsByTag%% %%Panel.ProductByCategory%% %%Panel.ProductVendorsOtherProducts%% %%Panel.ProductReviews%% </div> Thanks!