commit f070be33537c502588dabe473602a29d449c0ff2
Author: Mathew Guest <mathewguest@gmail.com>
Date:   Fri Dec 27 19:28:52 2019 -0700

    first try

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4ffc73e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,56 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.cache
+nosetests.xml
+coverage.xml
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+*.swp
diff --git a/setup.py b/setup.py
new file mode 100755
index 0000000..5c24cf1
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,43 @@
+#!/usr/bin/env python
+#
+# Usage:
+# 
+#   First, enable the python environment you want to install to, or if installing
+#   system-wide then ensure you're logged in with sufficient permissions
+#   (admin or root to install to system directories)
+#
+#   installation:
+#
+#       $ ./setup.py install
+#
+#   de-installation:
+#
+#       $ pip uninstall <app>
+
+
+from setuptools import setup
+
+__project__ = 'WaBoT'
+__version__ = '0.1.0'
+
+setup(
+    name = __project__,
+    version = __version__,
+    description = '',
+    author = 'Mathew Guest',
+    author_email = 't3h.zavage@gmail.com',
+
+    # Third-party dependencies; will be automatically installed
+    install_requires = (
+        'selenium',
+    ),
+
+    # Local packages to be installed (our packages)
+    packages = (
+        'wabot',
+    ),
+
+    # Binaries/Executables to be installed to system
+    scripts=()
+)
+
diff --git a/wabot/__init__.py b/wabot/__init__.py
new file mode 100644
index 0000000..08864fe
--- /dev/null
+++ b/wabot/__init__.py
@@ -0,0 +1,3 @@
+from .api import *
+from .page import *
+
diff --git a/wabot/api.py b/wabot/api.py
new file mode 100644
index 0000000..e69de29
diff --git a/wabot/fields.py b/wabot/fields.py
new file mode 100644
index 0000000..0caaffe
--- /dev/null
+++ b/wabot/fields.py
@@ -0,0 +1,103 @@
+class PageObject:
+    """
+    Wrapper around page element that provides an object orientated interface
+    to elements. Can be sublcassed to integrate more complicated instruction.
+    """
+    def __init__(self, page, accessors=None, name=None):
+        self.page = page
+        self.driver = page.driver
+        self.accessors = accessors
+        self.name = name
+        # self.el = None
+
+    def __getattr__(self, name):
+        # if not self.el:
+        #     raise AttributeError
+        try:
+            return getattr(self.el, name) 
+        except AttributeError as ex:
+            raise
+
+    def selenium_element(self, accessors=None):
+        """
+        Creates and returns a selenium webelement for
+        interfacing with the page.
+        """
+        if not accessors:
+            accessors = self.accessors
+        accessor = accessors
+
+        by = accessor[0]
+        value = accessor[1]
+        el = self.page.driver.find_element(by=by, value=value)
+        return el
+
+    def click(self):
+        return self.page.click(self.el)
+
+    def click_and_go(self):
+        time.sleep(random.uniform(3,6))
+        return self.page.click_and_go(self.el)
+
+    # def get_value(self):
+    # def set_value(self, value):
+    # def custom, e.g. zoom(self, x, y, dx, dy)
+
+class TextField(PageObject):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        el = self.selenium_element(kwargs['accessors'])
+        self.el = el
+
+    def get_value(self):
+        return self.page.get_el_value(self.el)
+
+    def set_value(self, value):
+        nhsn_lo.logger.info('<%s> set_text (%s)' % (self.name, value))
+        time.sleep(random.uniform(3,5))
+        return self.page.set_el_value(self.el, value)
+
+class SelectField(PageObject):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        el = self.selenium_element(kwargs['accessors'])
+        dropdown = selenium.webdriver.support.ui.Select(el)
+        self.el = el
+        self.dropdown = dropdown
+
+    def get_value(self):
+        return self.page.get_select_value(self.dropdown)
+
+    def set_value(self, value):
+        nhsn_lo.logger.info('<%s> set_select (%s)' % (self.name, value))
+        time.sleep(random.uniform(6,11))
+        return self.page.set_select_value(self.dropdown, value)
+
+    def select_by_index(self, idx):
+        return self.dropdown.select_by_index(idx)
+        
+
+class CheckField(PageObject):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        el = self.selenium_element(kwargs['accessors'])
+        self.el = el
+
+    def get_checked(self, ignore=False):
+        return self.page.get_checkbox_value(self.el, ignore)
+
+    def set_checked(self, checked):
+        nhsn_lo.logger.info('<%s> set_checked (%s)' % (self.name, checked))
+        time.sleep(random.uniform(2,3))
+        return self.page.set_checkbox(self.el, checked)
+
+class NullField(PageObject):
+    def __init__(self, el, *args, **kwargs):
+        self.el = el
+
+    def __getattr__(self, attr):
+        raise Exception
+
+    def __bool__(self):
+        return False
+
diff --git a/wabot/page.py b/wabot/page.py
new file mode 100644
index 0000000..d0bb9d2
--- /dev/null
+++ b/wabot/page.py
@@ -0,0 +1,539 @@
+import nhsn_lo.pages
+
+import enum
+import random
+import selenium.webdriver
+import time
+from selenium.webdriver.support.ui import WebDriverWait
+from selenium.webdriver.support import expected_conditions as EC
+import selenium.common.exceptions
+from .fields import *
+
+import selenium.webdriver.support.ui
+from selenium.webdriver.common.by import By
+from PIL import Image
+import os
+import inspect
+
+
+ENABLE_GOTO_CLINIC_SELECT_OPTIMIZATION = True
+ALERT_TIMEOUT = 3
+
+class OBJ_T(enum.Enum):
+    ELEMENT = 1
+    ELEMENT_ARRAY = 2
+    SELECT = 3
+    CUSTOM = 4
+
+class RC(enum.Enum):
+    FAILURE = 0
+    SUCCESS = 1
+    EVENT_WITHIN_21_DAYS = 2
+    DUPLICATE_EVENT = 3
+    NO_FACILITY = 4
+    MISSING_REPORTING_PLAN = 5
+    
+
+class Page:
+    """
+    Provides ancillary utility methods such as finding
+    elements, interacting with forms, and taking screenshots.
+    """
+    def __init__(self, parent):
+        self.parent = parent
+        self.driver = parent.driver
+
+    def find_element_locators(self, key):
+        """
+        Returns the generator data for an element, i.e. what
+        class to use and the arguments to construct it with. 
+        This is found/stored in the static class definition,
+        page.elements = {key: (accessors)}
+        """
+        class_hierarchy = inspect.getmro(type(self))
+        locators = None
+        for cls in class_hierarchy:
+            if not hasattr(cls, 'elements'): # no elements defined here...
+                continue
+            locators = cls.elements.get(key)
+            if not locators: # our element isn't defined here
+                continue 
+            return locators # return first found match
+
+    def get_proxy(self, key):
+        locators = self.find_element_locators(key)
+        if not locators:
+            nhsn_lo.logger.warn('element not found: %s' % (key))
+            return NullField(None, page=self)
+
+        obj_type = locators[0]
+        accessors = locators[1]
+
+        # if not el:
+        #     nhsn_lo.logger.warn('failed to make proxy object: %s' % key)
+        #     return NullField(None, page=self)
+
+        if obj_type == 'el':
+            obj = TextField(page=self, accessors=accessors, name=key)
+            return obj
+        elif obj_type == 'select':
+            obj = SelectField(page=self, accessors=accessors, name=key)
+            return obj
+        elif obj_type == 'checkbox':
+            obj = CheckField(page=self, accessors=accessors, name=key)
+            return obj
+        elif obj_type == 'els':
+            el = self.find_element(key)
+            return self.find_element(key)
+        elif isinstance(obj_type, type):
+            # by = accessors[0]
+            # value = accessors[1]
+            # el = self.driver.find_element(by=by, value=value)
+            obj = obj_type(idelement=accessors[1], page=self, accessors=accessors,
+                           name=key)
+            return obj
+        else:
+            nhsn_lo.logger.error('failed to create page element type: %s' % (obj_type))
+
+        nhsn_lo.logger.error('requested unknown page element: %s' % key)
+        return
+
+    def __getitem__(self, key):
+        # input('__getitem__ %s' % key)
+        # return self.find_element(key) # DEPRECATED
+        return self.get_proxy(key)
+
+    def find_element(self, key):
+        """
+        Accesses element on page
+        """
+        locators = self.find_element_locators(key)
+        if not locators:
+            nhsn_lo.logger.error('failed to find page element: %s' % (key))
+            return False
+
+        try:
+            it = iter(locators)
+            type_ = next(it)
+        
+            if type_ == 'custom':
+                cls = next(it)
+                locators = []
+                for locator in it:
+                    locators.append(locator)
+                obj = cls(self, OBJ_T.CUSTOM, locators)
+                # print(obj)
+                return obj
+
+
+            for locator in it:
+                # print('locator =', locator)
+                if type_ == 'el' or type_ == 'checkbox':
+                    try:
+                        by = locator[0]
+                        value = locator[1]
+                        el = self.driver.find_element(by=by, value=value)
+                        nhsn_lo.logger.trace('found single element (%s) by %s = %s', key, by, value)
+                        return el
+                    except Exception as ex:
+                        nhsn_lo.logger.warn('failed to find single element (%s) by %s = %s', key, by, value)
+                        continue
+                elif type_ == 'els':
+                    try:
+                        by = locator[0]
+                        value = locator[1]
+                        els = self.driver.find_elements(by=by, value=value)
+                        nhsn_lo.logger.trace('found elements (%s) by %s = %s', key, by, value)
+                        return els
+                    except Exception as ex:
+                        nhsn_lo.logger.warn('failed to find any elements (%s) by %s = %s', key, by, value)
+                        continue
+                elif type_ == 'select':
+                    try:
+                        by = locator[0]
+                        value = locator[1]
+                        el = self.driver.find_element(by=by, value=value)
+                        nhsn_lo.logger.trace('found dropdown element (%s) by %s = %s', key, by, value)
+                        dropdown = selenium.webdriver.support.ui.Select(el)
+                        return dropdown
+                    except Exception as ex:
+                        nhsn_lo.logger.warn('failed to find dropdown (%s) by %s = %s', key, by, value)
+                        continue
+
+                else:
+                    nhsn_lo.logger.error('unable to find element (%s): unknown type = %s' % (key, type_))
+            return
+        except Exception as ex:
+            print(ex)
+
+    def verify(self):
+        # The page proxy api calls PageObject.verify() if it exists, which
+        # should call super().verify(). It is necessary for every class in
+        # the hierarchy to have a callable verify(). Every class in the
+        # hierarchy should implement verify method or subclass from here.
+        return True
+
+    def click_and_go(self, el):
+        rc = self.click(el)
+        if not rc:
+            return rc
+        self.accept_alert()
+        nhsn_lo.logger.debug('waiting for page to load...')
+        rc = self._wait_for_element_to_go_stale(el)
+        if not rc:
+            nhsn_lo.logger.error('failed: timed out waiting for page load')
+            return False
+        return rc
+
+    def _wait_for_element_to_go_stale(self, el):
+        try:
+            wait = selenium.webdriver.support.ui.WebDriverWait(self.driver, 10)
+            wait.until(lambda driver: self.is_element_stale(el))
+            return True
+        except selenium.common.exceptions.TimeoutException as ex:
+            nhsn_lo.logger.error('failed: timed out waiting for page load')
+            return False
+
+    def click(self, el):
+        """
+        Clicks element at a random coordinate based on the size of the
+        element.
+
+        By default, selenium clicks elements at pos(0, 0). NHSN records
+        where things are clicked at.
+        """
+        if not el:
+            nhsn_lo.logger.warn("refusing to click null element")
+            return False
+
+        try:
+            size = el.size
+        except selenium.common.exceptions.StaleElementReferenceException as ex:
+            nhsn_lo.logger.error('failed to click element: stale reference')
+            return False
+
+        # Use a guassian distribution to click more often towards the center
+        width = size["width"]
+        if width > 4:
+            x = random.gauss((width/2), (width/7))
+            if x < 0: x = 1
+            elif x > width: x = width - 1
+        else:
+            i = 0
+            while i < 10:
+                try:
+                    if el.is_displayed() and el.is_enabled():
+                        el.click()
+                        return True
+                except selenium.common.exceptions.ElementNotVisibleException as ex:
+                    nhsn_lo.logger.error('failed to click element: not visible')
+                    return False
+                except selenium.common.exceptions.StaleElementReferenceException as ex:
+                    nhsn_lo.logger.error('failed to click element: stale reference')
+                    return False
+                time.sleep(.2)
+                i = i+1
+            return False
+
+        height = size["height"]
+        if height > 4:
+            y = random.gauss((height/2), (height/7))
+            if y < 0: y = 1
+            elif y > height: y = height -1
+        else:
+            el.click()
+            return
+
+        nhsn_lo.logger.trace( "clicking %s (dim: x = %s, y = %s) at %d, %d" %
+                        (self.get_el_identifier(el), size["width"], size["height"], x,y) )
+
+        i = 0
+        n = 20
+        while i < n:
+            if el.is_displayed() and el.is_enabled():
+                break
+            if i == n:
+                raise Exception("unable to click element")
+            time.sleep(.5)
+            i = i + 1
+
+
+
+
+        # return el.click()
+
+        x = int(x)
+        y = int(y)
+        # print('size is', width, height)
+        # print('clicking through selenium actions at', x, y)
+        actions = selenium.webdriver.ActionChains(self.driver)
+        actions.move_to_element_with_offset(el, x, y)
+        actions.click()
+        try:
+            actions.perform()
+        except Exception as ex: # type is selenium timeout... not sure
+            print(ex)
+            nhsn_lo.pages.logger.error("%s" % (ex))
+            return False
+        return True
+
+    def save_screenshot(self, filename):
+        nhsn_lo.pages.logger.info("saving page screenshot: %s" % (filename))
+
+
+        # Chromium2 screenshot only captures viewable area,
+        # selenium is waiting on WebDriver which is waiting
+        # on chromium. Doesn't look like it will be fixed soon.
+        # more info:
+        # https://code.google.com/p/chromedriver/issues/detail?id=294
+        #
+        # For now, the workaround is stitch it together for chromium.
+        # Firefox2 works fine but has it's own problems, hence the
+        # chromium stitch.
+        if self.parent.driver_type == "chromium2":
+            self.chrome_take_full_page_screenshot(filename)
+        else:
+            self.driver.get_screenshot_as_file(filename)
+
+
+    def chrome_take_full_page_screenshot(self, file):
+        self.driver.maximize_window()
+        # Global.scroll_to_zero()
+        time.sleep(0.2)
+
+        # Log.Debug("Starting chrome full page screenshot workaround ...")
+
+        total_width = self.driver.execute_script("return document.body.offsetWidth")
+        total_height = self.driver.execute_script("return document.body.parentNode.scrollHeight")
+
+        viewport_width = self.driver.execute_script("return document.body.clientWidth")
+        viewport_height = self.driver.execute_script("return window.innerHeight")
+
+        # Log.Debug("Total: ({0}, {1}), Viewport: ({2},{3})".format(total_width, total_height,viewport_width,viewport_height))
+
+        rectangles = []
+
+        i = 0
+        while i < total_height:
+            ii = 0
+            top_height = i + viewport_height
+
+            if top_height > total_height:
+                top_height = total_height
+
+            while ii < total_width:
+                top_width = ii + viewport_width
+
+                if top_width > total_width:
+                    top_width = total_width
+
+                # Log.Debug("Appending rectangle ({0},{1},{2},{3})".format(ii,i,top_width,top_height))
+                rectangles.append((ii,i,top_width,top_height))
+
+                ii = ii + viewport_width
+
+            i = i + viewport_height
+
+
+        stitched_image = Image.new('RGB', (total_width, total_height))
+        previous = None
+        part = 0
+        for rectangle in rectangles:
+            if not previous is None:
+                self.driver.execute_script("window.scrollTo({0}, {1})".format(rectangle[0], rectangle[1]))
+                # Log.Debug("Scrolled To ({0},{1})".format(rectangle[0], rectangle[1]))
+                time.sleep(0.2)
+
+            tmp_path = "/tmp/"
+            file_name = "{0}scroll_{1}_part_{2}.png".format(tmp_path, 1, part)
+            # file_name = "/tmp/screen.png"
+            # Log.Debug("Capturing {0} ...".format(file_name))
+
+            self.driver.get_screenshot_as_file(file_name)
+
+            screenshot = Image.open(file_name)
+
+            # offset = (rectangle[0], rectangle[1])
+            if rectangle[1] + viewport_height > total_height:
+                offset = (rectangle[0], total_height - viewport_height)
+            else:
+                offset = (rectangle[0], rectangle[1])
+
+            # Log.Debug("Adding to stitched image with offset ({0}, {1})".format(offset[0],offset[1]))
+            stitched_image.paste(screenshot, offset)
+
+            del screenshot
+
+            os.remove(file_name)
+
+            part = part + 1
+            previous = rectangle
+
+        stitched_image.save(file)
+
+        # Log.Debug("Finishing chrome full page screenshot workaround ...")
+
+        return True
+
+    def get_el_value(self, el):
+        if not el:
+            return None
+        val = el.get_attribute("value")
+        # nhsn_lo.logger.debug('peeked at field <%s>, value = %s'
+        #                      % (self.get_el_identifier(el), val))
+        return val
+
+    def get_el_text(self, el):
+        if not el:
+            return None
+        return el.text
+
+    def set_el_value(self, el, value, js=False, slow_type=False):
+        if not el:
+            return False
+        prev_val = self.get_el_value(el)
+        if value is None:
+            el.clear()
+            return
+        el.clear()
+
+        if js:
+            # doesn't work
+            rc = self.driver.execute_script("arguments[0].setAttribute('value', '%s');arguments[0].onchange();" % (value), el)
+
+        else:
+            if slow_type:
+                try:
+                    for ch in value:
+                        el.send_keys(ch)
+                        time.sleep(1)
+                except Exception as ex:
+                    nhsn_lo.pages.logger.error("failed to send keys, element in unknown state!!: %s" % (ex))
+                    return False
+            else:
+                try:
+                    el.send_keys(value)
+                except Exception as ex:
+                    nhsn_lo.pages.logger.error("failed to send keys, element in unknown state!!: %s" % (ex))
+                    return False
+
+        el_value = self.get_el_value(el)
+        if str(el_value) != str(value):
+            print(type(el_value), type(value))
+            print("values didn't match.", value, el_value)
+            return False
+        # nhsn_lo.logger.info('set field <%s> -> %s; previous = %s'
+        #                     % (self.get_el_identifier(el), el_value, prev_val))
+        return True
+    
+    def get_select_value(self, select):
+        if not select:
+            nhsn_lo.pages.logger.error("tried to get select value of NULL element")
+            return None
+        try:
+            value = select.first_selected_option.get_attribute("value")
+        except selenium.common.exceptions.NoSuchElementException as ex:
+            value = None
+        return value
+
+    def set_select_value(self, select, value=None, text=None):
+        if not select:
+            return False
+        # nhsn_lo.pages.logger.trace("setting select value (%s) for (%s)"\
+        #         % (value, self.get_el_identifier(select._el)))
+        if value:
+            try:
+                select.select_by_value(str(value))
+                return True
+            except Exception as ex:
+                return False
+        elif text:
+            select.select_by_visible_text(text)
+        return False
+
+    def set_checkbox(self, el, checked):
+        if not el:
+            return False
+        is_enabled = el.is_enabled()
+        is_selected = el.is_selected()
+        # print("enabled, selected, check:", is_enabled, is_selected, checked)
+        if not is_enabled:
+            return False
+        if checked:
+            if not is_selected:
+                # nhsn_lo.pages.logger.trace("checking unchecked box (%s)" % (self.get_el_identifier(el)))
+                self.click(el)
+        else:
+            if is_selected:
+                # nhsn_lo.pages.logger.trace("unchecking checked box (%s)" % (self.get_el_identifier(el)))
+                self.click(el)
+        val = self.get_checkbox_value(el)
+        if val != checked:
+            pass
+            # False != None
+            # print('checkbox not checked properly?', val, checked)
+            # input('checkbox not checked properly?')
+        # todo(mathew guest) assert checked
+        return True
+
+    def get_checkbox_value(self, el, ignore_disabled=False):
+        """
+        Returns the checked status of a checkbox element. True if enabled
+        and checked, False if disabled or unchecked.
+        """
+        if not el:
+            return None
+        return (ignore_disabled or el.is_enabled()) and el.is_selected()
+
+    def get_el_identifier(self, el):
+        """
+        Returns a quick identifier to refer an element by.
+        """
+        id_ = el.get_attribute("id")
+        name = el.get_attribute("name")
+        class_ = el.get_attribute("style")
+        if id_:
+            return id_
+        if name:
+            return name
+        if class_:
+            return class_
+
+    def accept_alert(self, accept=True, timeout=ALERT_TIMEOUT):
+        """
+        Looks for and tries to accept a javascript alert if it exists.
+        returns bool: whether or not an alert was accepted.
+
+        There is a timeout penalty when calling this method if there is no alert.
+        """
+        try:
+            selenium.webdriver.support.ui.WebDriverWait(self.driver, timeout).\
+                    until(selenium.webdriver.support.expected_conditions.alert_is_present(),
+                    'Timed out waiting alert' )
+            alert = self.driver.switch_to_alert()
+            text = alert.text
+            if accept:
+                alert.accept()
+            else:
+                alert.dismiss()
+            nhsn_lo.pages.logger.trace('caught js alert: %s' % text)
+            return text
+        except selenium.common.exceptions.TimeoutException:
+            nhsn_lo.pages.logger.trace('no js alert present')
+            return False
+
+    def is_element_stale(self, webelement):
+        """
+        Checks if a webelement is stale.
+        @param webelement: A selenium webdriver webelement
+        """
+        try:
+            webelement.tag_name
+        except selenium.common.exceptions.StaleElementReferenceException:
+            return True
+        except NameError:
+            pass
+        except:
+            pass
+        return False
+