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#
# Copyright (C) 2016 The Qt Company Ltd.
# Contact: https://www.qt.io/licensing/
#
# This file is part of Qt Creator.
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# GNU General Public License Usage
# Alternatively, this file may be used under the terms of the GNU
# General Public License version 3 as published by the Free Software
# Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
# included in the packaging of this file. Please review the following
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source("../../shared/qtcreator.py")
import random
from datetime import date

def __platformToBeRunToday__():
    return (('Linux'), ('Darwin'), ('Microsoft', 'Windows'))[date.today().day % 3]

# Be careful with Pastebin.Com, there are only 10 pastes per 24h
# for all machines using the same IP-address like you.
skipPastingToPastebinCom = platform.system() not in __platformToBeRunToday__()

NAME_PBCOM = "Pastebin.Com"
NAME_DPCOM = "DPaste.Com"

serverProblems = "Server side problems."

def invalidPasteId(protocol):
    return -1

def closeHTTPStatusAndPasterDialog(protocol, pasterDialog):
    try:
        mBoxStr = "{type='QMessageBox' unnamed='1' visible='1' windowTitle?='%s *'}" % protocol
        mBox = waitForObject(mBoxStr, 1000)
        text = str(mBox.text)
        # close message box and paster window
        clickButton("{type='QPushButton' text='Cancel' visible='1' window=%s}" % mBoxStr)
        clickButton("{type='QPushButton' text='Cancel' visible='1' window='%s'}" % pasterDialog)
        if 'Service Unavailable' in text:
            test.warning(text)
            return True
        test.log("Closed dialog without expected error.", text)
    except:
        t,v = sys.exc_info()[:2]
        test.warning("An exception occurred in closeHTTPStatusAndPasterDialog(): %s(%s)"
                     % (str(t), str(v)))
    return False

def pasteFile(sourceFile, protocol):
    def resetFiles():
        clickButton(waitForObject(":*Qt Creator.Clear_QToolButton"))
        invokeMenuItem('File', 'Revert "main.cpp" to Saved')
        clickButton(waitForObject(":Revert to Saved.Proceed_QPushButton"))
        snooze(1) # "Close All" might be disabled
        invokeMenuItem("File", "Close All")
    aut = currentApplicationContext()
    invokeMenuItem("File", "Open File or Project...")
    selectFromFileDialog(sourceFile)
    editor = waitForObject(":Qt Creator_CppEditor::Internal::CPPEditorWidget")
    jumpToFirstLine(editor)
    typeLines(editor, "// tst_codepasting %s" % datetime.utcnow())
    sourceText = editor.plainText
    invokeMenuItem("Tools", "Code Pasting", "Paste Snippet...")
    selectFromCombo(":Send to Codepaster.protocolBox_QComboBox", protocol)
    pasteEditor = waitForObject(":stackedWidget.plainTextEdit_QPlainTextEdit")
    test.compare(pasteEditor.plainText, sourceText, "Verify that dialog shows text from the editor")
    description = "Description %s" % datetime.utcnow()
    type(waitForObject(":uiDescription_QLineEdit"), description)
    typeLines(pasteEditor, "// tst_codepasting %s" % datetime.utcnow())
    pastedText = str(pasteEditor.plainText)
    expiry = waitForObject(":Send to Codepaster.qt_spinbox_lineedit_QLineEdit")
    expiryDays = random.randint(1, 10)
    replaceEditorContent(expiry, "%d" % expiryDays)
    test.log("Using expiry of %d days." % expiryDays)
    # make sure to read all former errors (they won't get read twice)
    aut.readStderr()
    clickButton(waitForObject(":Send to Codepaster.Paste_QPushButton"))
    try:
        outputWindow = waitForObject(":Qt Creator_Core::OutputWindow")
        waitFor("re.search('^https://', str(outputWindow.plainText)) is not None", 20000)
        output = filter(lambda x: len(x), str(outputWindow.plainText).splitlines())[-1]
    except:
        output = ""
        if closeHTTPStatusAndPasterDialog(protocol, ':Send to Codepaster_CodePaster::PasteView'):
            resetFiles()
            raise Exception(serverProblems)
    stdErrOut = aut.readStderr()
    match = re.search("^%s protocol error: (.*)$" % protocol, stdErrOut, re.MULTILINE)
    if match:
        pasteId = invalidPasteId(protocol)
        if "Internal Server Error" in match.group(1):
            test.warning("Server Error - trying to continue...")
        else:
            test.fail("%s protocol error: %s" % (protocol, match.group(1)))
    elif output.strip() == "":
        pasteId = invalidPasteId(protocol)
    elif "FAIL:There was an error communicating with the database" in output:
        resetFiles()
        raise Exception(serverProblems)
    elif "Post limit, maximum pastes per 24h reached" in output:
        test.warning("Maximum pastes per day exceeded.")
        pasteId = None
    else:
        pasteId = output.rsplit("/", 1)[1]
    resetFiles()
    return pasteId, description, pastedText

def fetchSnippet(protocol, description, pasteId, skippedPasting):
    foundSnippet = True
    invokeMenuItem("Tools", "Code Pasting", "Fetch Snippet...")
    selectFromCombo(":PasteSelectDialog.protocolBox_QComboBox", protocol)
    try:
        pasteModel = waitForObject(":PasteSelectDialog.listWidget_QListWidget").model()
    except:
        closeHTTPStatusAndPasterDialog(protocol, ':PasteSelectDialog_CodePaster::PasteSelectDialog')
        return -1

    condition = "pasteModel.rowCount() > 1"
    if protocol == NAME_DPCOM: # no list support
        condition = "pasteModel.rowCount() == 1"
    waitFor(condition, 20000)

    if protocol == NAME_DPCOM:
        items = dumpItems(pasteModel)
        test.compare(items, ["This protocol does not support listing"], "Check expected message.")
    elif (protocol != NAME_PBCOM and not skippedPasting
          and not any(map(lambda str:pasteId in str, dumpItems(pasteModel)))):
        test.warning("Fetching too fast for server of %s - waiting 3s and trying to refresh." % protocol)
        snooze(3)
        clickButton("{text='Refresh' type='QPushButton' unnamed='1' visible='1' "
            "window=':PasteSelectDialog_CodePaster::PasteSelectDialog'}")
        waitFor("pasteModel.rowCount() == 1", 1000)
        waitFor("pasteModel.rowCount() > 1", 20000)
    if pasteId == -1:
        try:
            pasteLine = filter(lambda str:description in str, dumpItems(pasteModel))[0]
            pasteId = pasteLine.split(" ", 1)[0]
        except:
            test.fail("Could not find description line in list of pastes from %s" % protocol)
            clickButton(waitForObject(":PasteSelectDialog.Cancel_QPushButton"))
            return pasteId
    else:
        try:
            pasteLine = filter(lambda str:pasteId in str, dumpItems(pasteModel))[0]
            if protocol == NAME_PBCOM:
                test.verify(description in pasteLine,
                            "Verify that line in list of pastes contains the description")
        except:
            if not skippedPasting:
                message = "Could not find id '%s' in list of pastes from %s" % (pasteId, protocol)
                if protocol == NAME_PBCOM:
                    test.xfail(message, "pastebin.com does not show pastes in list anymore")
                elif protocol != NAME_DPCOM: # does not happen now, but kept to avoid forgetting to
                    test.fail(message)       # re-add when protocols change again
            foundSnippet = False
            replaceEditorContent(waitForObject(":PasteSelectDialog.pasteEdit_QLineEdit"), pasteId)
    if foundSnippet:
        pasteLine = pasteLine.replace(".", "\\.")
        mouseClick(waitForObjectItem(":PasteSelectDialog.listWidget_QListWidget", pasteLine))
    clickButton(waitForObject(":PasteSelectDialog.OK_QPushButton"))
    return pasteId

def checkForMovedUrl():  # protocol may be redirected (HTTP status 30x) - check for permanent moves
    try:
        pattern = re.compile(r'HTTP redirect \((\d{3})\) to "(.+)"')
        outputWindow = waitForObject(":Qt Creator_Core::OutputWindow", 2000)
        match = [None]
        def __patternMatches__(matchHack):
            matchHack[0] = pattern.search(str(outputWindow.plainText))
            return matchHack[0] is not None
        waitFor("__patternMatches__(match)", 1000)
        if match[0] is not None:
            test.fail("URL has moved permanently.", match[0].group(0))
    except:
        t,v,tb = sys.exc_info()
        test.log(str(t), str(v))

def main():
    startQC()
    if not startedWithoutPluginError():
        return
    protocolsToTest = [NAME_PBCOM, NAME_DPCOM]
    sourceFile = os.path.join(os.getcwd(), "testdata", "main.cpp")
    # make sure General Messages is open
    openGeneralMessages()
    clickButton(waitForObject(":*Qt Creator.Clear_QToolButton"))
    for protocol in protocolsToTest:
        with TestSection(protocol):
            skippedPasting = True
            description = "Paste from 2017-05-11"
            if skipPastingToPastebinCom and protocol == NAME_PBCOM:
                pasteId = "8XHP0ZgH"
                pastedText = readFile(os.path.join(os.getcwd(), "testdata", "main-prepasted.cpp"))
            else:
                skippedPasting = False
                try:
                    pasteId, description, pastedText = pasteFile(sourceFile, protocol)
                except Exception as e:
                    if e.message == serverProblems:
                        test.warning("Ignoring server side issues")
                        continue
                    else: # if it was not our own exception re-raise
                        raise e
                if not pasteId:
                    message = "Could not get id of paste to %s" % protocol
                    if protocol == NAME_PBCOM:
                        test.log("%s, using prepasted file instead" % message)
                        skippedPasting = True
                        pasteId = "8XHP0ZgH"
                        pastedText = readFile(os.path.join(os.getcwd(),
                                              "testdata", "main-prepasted.cpp"))
                    else:
                        test.fatal(message)
                        continue
            pasteId = fetchSnippet(protocol, description, pasteId, skippedPasting)
            if pasteId == -1:
                continue
            filenameCombo = waitForObject(":Qt Creator_FilenameQComboBox")
            waitFor("not filenameCombo.currentText.isEmpty()", 20000)
            try:
                editor = waitForObject(":Qt Creator_CppEditor::Internal::CPPEditorWidget")
            except:
                outputWindow = waitForObject(":Qt Creator_Core::OutputWindow")
                test.fail("Could not find editor with snippet", str(outputWindow.plainText))
                clickButton(waitForObject(":*Qt Creator.Clear_QToolButton"))
                continue
            test.compare(filenameCombo.currentText, "%s: %s" % (protocol, pasteId), "Verify title of editor")
            if protocol in (NAME_PBCOM, NAME_DPCOM) and pastedText.endswith("\n"):
                pastedText = pastedText[:-1]
            test.compare(editor.plainText, pastedText, "Verify that pasted and fetched texts are the same")

            if protocol == NAME_DPCOM:
                checkForMovedUrl()

            invokeMenuItem("File", "Close All")
    invokeMenuItem("File", "Open File or Project...")
    selectFromFileDialog(sourceFile)
    editor = waitForObject(":Qt Creator_CppEditor::Internal::CPPEditorWidget")
    jumpToFirstLine(editor)
    markText(editor, "Down", 7)
    # QString QTextCursor::selectedText () const:
    # "Note: If the selection obtained from an editor spans a line break, the text will contain a
    # Unicode U+2029 paragraph separator character instead of a newline \n character."
    selectedText = str(editor.textCursor().selectedText()).replace(unichr(0x2029), "\n")
    invokeMenuItem("Tools", "Code Pasting", "Paste Snippet...")
    test.compare(waitForObject(":stackedWidget.plainTextEdit_QPlainTextEdit").plainText,
                 selectedText, "Verify that dialog shows selected text from the editor")
    clickButton(waitForObject(":Send to Codepaster.Cancel_QPushButton"))
    invokeMenuItem("File", "Exit")
