Merge pull request #156 from pedropereira/feature/selenium-scraping-tool-can-return-html

Feat(SeleniumScrapingTool): Provide capability to return HTML
This commit is contained in:
João Moura
2024-12-27 22:02:58 -03:00
committed by GitHub
3 changed files with 130 additions and 9 deletions

View File

@@ -31,3 +31,4 @@ tool = SeleniumScrapingTool(website_url='https://example.com', css_element='.mai
- `css_element`: Mandatory. The CSS selector for a specific element to scrape from the website.
- `cookie`: Optional. A dictionary containing cookie information. This parameter allows the tool to simulate a session with cookie information, providing access to content that may be restricted to logged-in users.
- `wait_time`: Optional. The number of seconds the tool waits after loading the website and after setting a cookie, before scraping the content. This allows for dynamic content to load properly.
- `return_html`: Optional. If True, the tool returns HTML content. If False, the tool returns text content.

View File

@@ -11,8 +11,6 @@ from selenium.webdriver.common.by import By
class FixedSeleniumScrapingToolSchema(BaseModel):
"""Input for SeleniumScrapingTool."""
pass
class SeleniumScrapingToolSchema(FixedSeleniumScrapingToolSchema):
"""Input for SeleniumScrapingTool."""
@@ -33,6 +31,7 @@ class SeleniumScrapingTool(BaseTool):
cookie: Optional[dict] = None
wait_time: Optional[int] = 3
css_element: Optional[str] = None
return_html: Optional[bool] = False
def __init__(
self,
@@ -63,18 +62,46 @@ class SeleniumScrapingTool(BaseTool):
) -> Any:
website_url = kwargs.get("website_url", self.website_url)
css_element = kwargs.get("css_element", self.css_element)
return_html = kwargs.get("return_html", self.return_html)
driver = self._create_driver(website_url, self.cookie, self.wait_time)
content = []
if css_element is None or css_element.strip() == "":
body_text = driver.find_element(By.TAG_NAME, "body").text
content.append(body_text)
else:
for element in driver.find_elements(By.CSS_SELECTOR, css_element):
content.append(element.text)
content = self._get_content(driver, css_element, return_html)
driver.close()
return "\n".join(content)
def _get_content(self, driver, css_element, return_html):
content = []
if self._is_css_element_empty(css_element):
content.append(self._get_body_content(driver, return_html))
else:
content.extend(self._get_elements_content(driver, css_element, return_html))
return content
def _is_css_element_empty(self, css_element):
return css_element is None or css_element.strip() == ""
def _get_body_content(self, driver, return_html):
body_element = driver.find_element(By.TAG_NAME, "body")
return (
body_element.get_attribute("outerHTML")
if return_html
else body_element.text
)
def _get_elements_content(self, driver, css_element, return_html):
elements_content = []
for element in driver.find_elements(By.CSS_SELECTOR, css_element):
elements_content.append(
element.get_attribute("outerHTML") if return_html else element.text
)
return elements_content
def _create_driver(self, url, cookie, wait_time):
options = Options()
options.add_argument("--headless")