50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
"""浏览器场景变量替换与 base URL 解析。"""
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from __future__ import annotations
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import re
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from urllib.parse import urlparse
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import env_config
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_VAR_PATTERN = re.compile(r"\{\{([A-Z0-9_]+)\}\}")
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def interpolate(value: str) -> str:
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def repl(match: re.Match[str]) -> str:
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key = match.group(1)
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resolved = env_config.env(key)
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if resolved is None:
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raise RuntimeError(f"场景变量未配置：{key}")
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return resolved
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return _VAR_PATTERN.sub(repl, value)
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def default_base_url() -> str:
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explicit = (env_config.env("PREVIEW_BASE_URL") or "").strip()
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if explicit:
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return interpolate(explicit.rstrip("/"))
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preview = (env_config.env("PREVIEW_URL") or "").strip()
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if preview:
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parsed = urlparse(preview)
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scheme = parsed.scheme or "http"
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host = parsed.hostname or "127.0.0.1"
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port = parsed.port
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if port and port not in (80, 443):
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return f"{scheme}://{host}:{port}"
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return f"{scheme}://{host}"
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port = env_config.env("PREVIEW_PORT", "5173") or "5173"
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return f"http://127.0.0.1:{port}"
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def resolve_url(base_url: str, target: str) -> str:
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target = interpolate(target.strip())
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if target.startswith("http://") or target.startswith("https://"):
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return target
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if not target.startswith("/"):
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target = "/" + target
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return base_url.rstrip("/") + target
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