fix: 修复爬虫功能
This commit is contained in:
parent
f10c5de950
commit
61bf235a15
|
|
@ -5,84 +5,62 @@ from urllib.parse import parse_qs, urlparse, quote
|
||||||
from typing import List
|
from typing import List
|
||||||
from concurrent.futures import ThreadPoolExecutor, as_completed
|
from concurrent.futures import ThreadPoolExecutor, as_completed
|
||||||
from bs4 import BeautifulSoup
|
from bs4 import BeautifulSoup
|
||||||
|
from ddgs import DDGS
|
||||||
|
|
||||||
|
|
||||||
class SearchService:
|
class SearchService:
|
||||||
"""DuckDuckGo search"""
|
"""DuckDuckGo search using ddgs library"""
|
||||||
|
|
||||||
def search(self, query: str, max_results: int = 5) -> List[dict]:
|
def search(self, query: str, max_results: int = 5) -> List[dict]:
|
||||||
headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36"}
|
|
||||||
url = f"https://html.duckduckgo.com/html/?q={quote(query)}"
|
|
||||||
|
|
||||||
try:
|
|
||||||
resp = httpx.get(url, headers=headers, timeout=15, follow_redirects=True)
|
|
||||||
resp.raise_for_status()
|
|
||||||
except Exception:
|
|
||||||
return []
|
|
||||||
|
|
||||||
soup = BeautifulSoup(resp.text, "html.parser")
|
|
||||||
results = []
|
results = []
|
||||||
|
try:
|
||||||
for result in soup.select(".result")[:max_results]:
|
for result in DDGS().text(query, max_results=max_results):
|
||||||
title_elem = result.select_one(".result__title a")
|
|
||||||
snippet_elem = result.select_one(".result__snippet")
|
|
||||||
|
|
||||||
if title_elem:
|
|
||||||
raw_url = title_elem.get("href", "")
|
|
||||||
if "uddg=" in raw_url:
|
|
||||||
params = parse_qs(urlparse(raw_url).query)
|
|
||||||
clean_url = params.get("uddg", [raw_url])[0]
|
|
||||||
else:
|
|
||||||
clean_url = raw_url
|
|
||||||
|
|
||||||
results.append({
|
results.append({
|
||||||
"title": title_elem.get_text(strip=True),
|
"title": result.get("title", ""),
|
||||||
"url": clean_url,
|
"url": result.get("href", ""),
|
||||||
"snippet": snippet_elem.get_text(strip=True) if snippet_elem else ""
|
"snippet": result.get("body", "")
|
||||||
})
|
})
|
||||||
|
except Exception:
|
||||||
|
pass
|
||||||
return results
|
return results
|
||||||
|
|
||||||
|
|
||||||
class FetchService:
|
class FetchService:
|
||||||
"""Page fetch with concurrent support"""
|
"""Page fetch using httpx with concurrent support"""
|
||||||
|
|
||||||
def __init__(self, timeout: float = 15.0):
|
def __init__(self, timeout: float = 15.0):
|
||||||
self.timeout = timeout
|
self.timeout = timeout
|
||||||
self.user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36"
|
|
||||||
|
|
||||||
def fetch(self, url: str, extract_type: str = "text") -> dict:
|
def fetch(self, url: str, extract_type: str = "text") -> dict:
|
||||||
if not url.startswith(("http://", "https://")):
|
if not url.startswith(("http://", "https://")):
|
||||||
url = "https://" + url
|
url = "https://" + url
|
||||||
|
|
||||||
try:
|
try:
|
||||||
resp = httpx.get(url, timeout=self.timeout, follow_redirects=True, headers={"User-Agent": self.user_agent})
|
headers = {
|
||||||
resp.raise_for_status()
|
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
|
||||||
except httpx.TimeoutException:
|
}
|
||||||
return {"error": "Request timeout"}
|
with httpx.Client(timeout=self.timeout, follow_redirects=True) as client:
|
||||||
|
response = client.get(url, headers=headers)
|
||||||
|
response.raise_for_status()
|
||||||
|
|
||||||
|
soup = BeautifulSoup(response.text, "html.parser")
|
||||||
|
|
||||||
|
# Remove script and style elements
|
||||||
|
for script in soup(["script", "style"]):
|
||||||
|
script.decompose()
|
||||||
|
|
||||||
|
title = soup.title.string if soup.title else ""
|
||||||
|
text = soup.get_text(separator="\n", strip=True)
|
||||||
|
|
||||||
|
return {
|
||||||
|
"url": url,
|
||||||
|
"title": title[:500] if title else "",
|
||||||
|
"text": text[:15000]
|
||||||
|
}
|
||||||
except Exception as e:
|
except Exception as e:
|
||||||
return {"error": str(e)}
|
return {"error": str(e)}
|
||||||
|
|
||||||
soup = BeautifulSoup(resp.text, "html.parser")
|
return {"url": url, "title": "", "text": ""}
|
||||||
title = soup.title.string if soup.title else ""
|
|
||||||
|
|
||||||
# Remove noise
|
|
||||||
for tag in soup(["script", "style", "nav", "footer", "header", "aside"]):
|
|
||||||
tag.decompose()
|
|
||||||
|
|
||||||
if extract_type == "links":
|
|
||||||
links = [{"text": a.get_text(strip=True), "url": a["href"]}
|
|
||||||
for a in soup.find_all("a", href=True)
|
|
||||||
if a.get_text(strip=True) and not a["href"].startswith(("#", "javascript:"))]
|
|
||||||
return {"url": url, "links": links[:50]}
|
|
||||||
|
|
||||||
text = re.sub(r"\n{3,}", "\n\n", soup.get_text(separator="\n", strip=True))
|
|
||||||
|
|
||||||
if extract_type == "structured":
|
|
||||||
meta_desc = soup.find("meta", attrs={"name": "description"})
|
|
||||||
return {"url": url, "title": title, "description": (meta_desc.get("content", "") if meta_desc else ""), "text": text[:5000]}
|
|
||||||
|
|
||||||
return {"url": url, "title": title, "text": text[:15000]}
|
|
||||||
|
|
||||||
def fetch_batch(self, urls: List[str], extract_type: str = "text", max_concurrent: int = 5) -> List[dict]:
|
def fetch_batch(self, urls: List[str], extract_type: str = "text", max_concurrent: int = 5) -> List[dict]:
|
||||||
if len(urls) <= 1:
|
if len(urls) <= 1:
|
||||||
|
|
|
||||||
|
|
@ -22,6 +22,7 @@ dependencies = [
|
||||||
"email-validator>=2.1.0",
|
"email-validator>=2.1.0",
|
||||||
"shortuuid>=1.0.11",
|
"shortuuid>=1.0.11",
|
||||||
"sse-starlette>=2.0.0",
|
"sse-starlette>=2.0.0",
|
||||||
|
"ddgs>=5.0.0",
|
||||||
]
|
]
|
||||||
|
|
||||||
[project.optional-dependencies]
|
[project.optional-dependencies]
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue