Refactored to retry when overshooting pagination to fetch the last page and try again
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parent
88e11f58bc
commit
22c5a6e231
@ -22,146 +22,165 @@
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import requests
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import os
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import random
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import re
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import time
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def random_tag(*tags):
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return len(tags) == 1 and tags[0].lower() == "random"
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return len(tags) == 1 and tags[0].lower() == "random"
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def collect_tags(post):
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return post["tags"].strip().lower().split()
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return post["tags"].strip().lower().split()
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def is_banned(post, profile):
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tag_response = collect_tags(post)
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tag_banned = profile["banned_tags"]
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for tag in tag_banned:
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if tag in tag_response:
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return tag
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return None
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tag_response = collect_tags(post)
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tag_banned = profile["banned_tags"]
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for tag in tag_banned:
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if tag in tag_response:
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return tag
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return None
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def get_nsfw(post):
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return post["rating"] in ("q", "e")
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return post["rating"] in ("q", "e")
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def select_from_response(response, profile, max_size=None):
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for post in response:
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if is_banned(post, profile):
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continue
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elif "file_url" not in post:
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continue
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# Select only nsfw
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elif ( profile["force_nsfw"] is not None and
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profile["force_nsfw"] != get_nsfw(post)
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):
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continue
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# Make sure serverside size is not larger than max_size
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elif ( max_size != None and
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"file_size" in post and
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post["file_size"] > max_size
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):
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continue
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return post
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return None
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for post in response:
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if is_banned(post, profile):
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continue
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elif "file_url" not in post:
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continue
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# Select only nsfw
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elif ( profile["force_nsfw"] is not None and
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profile["force_nsfw"] != get_nsfw(post)
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):
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continue
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# Make sure serverside size is not larger than max_size
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elif ( max_size != None and
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"file_size" in post and
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post["file_size"] > max_size
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):
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continue
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return post
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return None
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class downloader:
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username = None
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password = None
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max_size = None
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tmp = None
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url = ""
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api_endpoint = "post.json?random=true&limit=100"
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api_tags = "&tags={}"
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api_limit = "&limit={}"
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api_offset = "&page={}"
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limit = 100
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max_depth = 200
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def __init__(self, backend_credentials):
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self.api_endpoint = "{}/post/index.json?limit={}&page={}"
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self.html_endpoint = "{}/post/index?limit={}&page={}"
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self.tag_url = "&tags={}"
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self.limit = 100
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self.retry_limit = 3
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def __init__(self, backend_credentials):
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self.username = backend_credentials["username"]
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self.password = backend_credentials["password"]
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self.max_size = backend_credentials["max_size"]
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self.tmp = backend_credentials["tmp_dir"]
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self.url = backend_credentials["url"]
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self.max_depth = backend_credentials["max_depth"]
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random.seed(os.urandom(16))
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self.username = backend_credentials["username"]
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self.password = backend_credentials["password"]
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self.depth = backend_credentials["max_size"]
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self.tmp = backend_credentials["tmp_dir"]
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self.url = backend_credentials["url"]
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self.max_depth = backend_credentials["max_depth"]
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random.seed(os.urandom(16))
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def download_post(self, post):
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file_url = post["file_url"]
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full_path = post["full_path"]
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def download_post(self, post):
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file_url = post["file_url"]
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full_path = post["full_path"]
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remote_image = requests.get(file_url)
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remote_image = requests.get(file_url)
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if remote_image.status_code != 200:
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print("Remote image request returned:", remote_image.status_code)
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return None
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if remote_image.status_code != 200:
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print("Remote image request returned:", remote_image.status_code)
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return None
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with open(full_path, "wb") as f:
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f.write(remote_image.content)
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with open(full_path, "wb") as f:
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f.write(remote_image.content)
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return post
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return post
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def get_full_url(self, limit=100, offset=0, *tags):
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search_url = "/".join((self.url, self.api_endpoint))
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search_url += self.api_limit.format(str(limit))
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search_url += self.api_offset.format(str(offset))
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if tags and not random_tag(*tags):
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search_tags = "+".join(tags)
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search_url += self.api_tags.format(search_tags)
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return search_url
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def search(self, search_url):
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search_request = None
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if self.username and self.password:
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search_request = requests.get(search_url,
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auth=(self.username, self.password)
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)
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else:
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search_request = requests.get(search_url)
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return search_request
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# I suck at regex :(
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def get_max_page(self, html):
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match = re.findall('page=[0-9]*', html)
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if match:
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last_group = match[len(match) - 1]
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last_page = last_group.rsplit("=", 1)[1]
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return int(last_page)
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else:
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return None
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def search(self, search_url):
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search_request = None
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if self.username and self.password:
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search_request = requests.get(search_url,
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auth=(self.username, self.password)
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)
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else:
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search_request = requests.get(search_url)
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return search_request
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def fetch_post(self, profile):
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tags = profile["tags"]
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selected = dict()
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max_depth = self.max_depth
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search_url_tags = "+".join(tags)
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search_url = ""
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for _ in range(0, self.retry_limit):
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page_offset = random.randint(0, max_depth)
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search_url = self.api_endpoint.format(self.url, self.limit, page_offset)
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search_url_html = self.html_endpoint.format(self.url, self.limit, page_offset)
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if search_url_tags:
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search_url += self.tag_url.format(search_url_tags)
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search_url_html += self.tag_url.format(search_url_tags)
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def fetch_post(self, profile):
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# Search ratings: s=safe, e=nsfw
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tags = profile["tags"]
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search_request = self.search(search_url)
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page_offset = random.randint(0, self.max_depth)
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search_url = self.get_full_url(self.limit, page_offset, *tags)
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search_request = self.search(search_url)
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if search_request.status_code != 200:
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print("Search request returned:", search_request.status_code)
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continue
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if search_request.status_code != 200:
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print("Search request returned:", search_request.status_code)
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return None
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posts = search_request.json()
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random.shuffle(posts)
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posts = search_request.json()
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random.shuffle(posts)
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selected = select_from_response(posts, profile)
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selected = select_from_response(posts, profile, self.max_size)
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if selected is None:
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print("Could not select image based on criteria")
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time.sleep(2)
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search_request = self.search(search_url_html)
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if selected is None:
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print("Could not select image based on criteria")
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return None
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if search_request.status_code == 200:
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new_max_depth = self.get_max_page(search_request.text)
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if new_max_depth < max_depth:
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max_depth = new_max_depth
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else:
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max_depth = max_depth // 2
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else:
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max_depth = max_depth // 2
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continue
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tag_response = collect_tags(selected)
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nsfw = get_nsfw(selected)
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file_url = selected["file_url"]
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break
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basename = "{}.{}".format(selected["md5"], file_url.rsplit(".", 1)[1])
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full_path = os.path.join(self.tmp, basename)
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if not selected:
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return None
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r = {
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# Add profile to dictioanry
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"profile": profile,
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tag_response = collect_tags(selected)
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nsfw = get_nsfw(selected)
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file_url = selected["file_url"]
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# Query results
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"search_url": search_url,
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"file_url": file_url,
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"full_path": full_path,
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"tag_response": tag_response,
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"nsfw": nsfw
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}
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basename = "{}.{}".format(selected["md5"], file_url.rsplit(".", 1)[1])
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full_path = os.path.join(self.tmp, basename)
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return r
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r = {
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# Add profile to dictioanry
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"profile": profile,
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# Query results
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"search_url": search_url,
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"file_url": file_url,
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"full_path": full_path,
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"tag_response": tag_response,
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"nsfw": nsfw
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}
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return r
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