Scrape anime and play episodes on browser without ads from terminal (TheAlgorithms#5975)

* fetch anime

* formatted  code

* fix format errors

* fix bot reviews

* pr review fixes

* remove unussed exception

* change var name

* fix comments

Author: saptarshi1996

web_programming/fetch_anime_and_play.py

@@ -0,0 +1,188 @@
+from xml.dom import NotFoundErr
+
+import requests
+from bs4 import BeautifulSoup, NavigableString
+from fake_useragent import UserAgent
+
+BASE_URL = "https://ww1.gogoanime2.org"
+
+
+def search_scraper(anime_name: str) -> list:
+
+    """[summary]
+
+    Take an url and
+    return list of anime after scraping the site.
+
+    >>> type(search_scraper("demon_slayer"))
+    <class 'list'>
+
+    Args:
+        anime_name (str): [Name of anime]
+
+    Raises:
+        e: [Raises exception on failure]
+
+    Returns:
+        [list]: [List of animes]
+    """
+
+    # concat the name to form the search url.
+    search_url = f"{BASE_URL}/search/{anime_name}"
+
+    response = requests.get(
+        search_url, headers={"UserAgent": UserAgent().chrome}
+    )  # request the url.
+
+    # Is the response ok?
+    response.raise_for_status()
+
+    # parse with soup.
+    soup = BeautifulSoup(response.text, "html.parser")
+
+    # get list of anime
+    anime_ul = soup.find("ul", {"class": "items"})
+    anime_li = anime_ul.children
+
+    # for each anime, insert to list. the name and url.
+    anime_list = []
+    for anime in anime_li:
+        if not isinstance(anime, NavigableString):
+            try:
+                anime_url, anime_title = (
+                    anime.find("a")["href"],
+                    anime.find("a")["title"],
+                )
+                anime_list.append(
+                    {
+                        "title": anime_title,
+                        "url": anime_url,
+                    }
+                )
+            except (NotFoundErr, KeyError):
+                pass
+
+    return anime_list
+
+
+def search_anime_episode_list(episode_endpoint: str) -> list:
+
+    """[summary]
+
+    Take an url and
+    return list of episodes after scraping the site
+    for an url.
+
+    >>> type(search_anime_episode_list("/anime/kimetsu-no-yaiba"))
+    <class 'list'>
+
+    Args:
+        episode_endpoint (str): [Endpoint of episode]
+
+    Raises:
+        e: [description]
+
+    Returns:
+        [list]: [List of episodes]
+    """
+
+    request_url = f"{BASE_URL}{episode_endpoint}"
+
+    response = requests.get(url=request_url, headers={"UserAgent": UserAgent().chrome})
+    response.raise_for_status()
+
+    soup = BeautifulSoup(response.text, "html.parser")
+
+    # With this id. get the episode list.
+    episode_page_ul = soup.find("ul", {"id": "episode_related"})
+    episode_page_li = episode_page_ul.children
+
+    episode_list = []
+    for episode in episode_page_li:
+        try:
+            if not isinstance(episode, NavigableString):
+                episode_list.append(
+                    {
+                        "title": episode.find("div", {"class": "name"}).text.replace(
+                            " ", ""
+                        ),
+                        "url": episode.find("a")["href"],
+                    }
+                )
+        except (KeyError, NotFoundErr):
+            pass
+
+    return episode_list
+
+
+def get_anime_episode(episode_endpoint: str) -> list:
+
+    """[summary]
+
+    Get click url and download url from episode url
+
+    >>> type(get_anime_episode("/watch/kimetsu-no-yaiba/1"))
+    <class 'list'>
+
+    Args:
+        episode_endpoint (str): [Endpoint of episode]
+
+    Raises:
+        e: [description]
+
+    Returns:
+        [list]: [List of download and watch url]
+    """
+
+    episode_page_url = f"{BASE_URL}{episode_endpoint}"
+
+    response = requests.get(
+        url=episode_page_url, headers={"User-Agent": UserAgent().chrome}
+    )
+    response.raise_for_status()
+
+    soup = BeautifulSoup(response.text, "html.parser")
+
+    try:
+        episode_url = soup.find("iframe", {"id": "playerframe"})["src"]
+        download_url = episode_url.replace("/embed/", "/playlist/") + ".m3u8"
+    except (KeyError, NotFoundErr) as e:
+        raise e
+
+    return [f"{BASE_URL}{episode_url}", f"{BASE_URL}{download_url}"]
+
+
+if __name__ == "__main__":
+
+    anime_name = input("Enter anime name: ").strip()
+    anime_list = search_scraper(anime_name)
+    print("\n")
+
+    if len(anime_list) == 0:
+        print("No anime found with this name")
+    else:
+
+        print(f"Found {len(anime_list)} results: ")
+        for (i, anime) in enumerate(anime_list):
+            anime_title = anime["title"]
+            print(f"{i+1}. {anime_title}")
+
+        anime_choice = int(input("\nPlease choose from the following list: ").strip())
+        chosen_anime = anime_list[anime_choice - 1]
+        print(f"You chose {chosen_anime['title']}. Searching for episodes...")
+
+        episode_list = search_anime_episode_list(chosen_anime["url"])
+        if len(episode_list) == 0:
+            print("No episode found for this anime")
+        else:
+            print(f"Found {len(episode_list)} results: ")
+            for (i, episode) in enumerate(episode_list):
+                print(f"{i+1}. {episode['title']}")
+
+            episode_choice = int(input("\nChoose an episode by serial no: ").strip())
+            chosen_episode = episode_list[episode_choice - 1]
+            print(f"You chose {chosen_episode['title']}. Searching...")
+
+            episode_url, download_url = get_anime_episode(chosen_episode["url"])
+            print(f"\nTo watch, ctrl+click on {episode_url}.")
+            print(f"To download, ctrl+click on {download_url}.")