2 files changed, 68 insertions, 4 deletions
diff --git a/src/ipm/api.py b/src/ipm/api.py
index 866355c..12104ac 100644
--- a/src/ipm/api.py
+++ b/src/ipm/api.py
@@ -1,11 +1,12 @@
 from pathlib import Path
 from .typing import StrPath
 from .utils import freeze, urlparser, loader
-from .models.ipk import InfiniProject, InfiniFrozenPackage
-from .models.lock import PackageLock
 from .exceptions import FileTypeMismatch, TomlLoadFailed, FileNotFoundError
 from .const import INDEX, STORAGE, SRC_HOME
 from .logging import info, success, warning, error
+from .models.ipk import InfiniProject, InfiniFrozenPackage
+from .models.lock import PackageLock
+from .models.index import Yggdrasil
 
 import toml
 import shutil
@@ -74,8 +75,20 @@ def install(uri: str, index: str = "", echo: bool = False) -> None:
     lock = PackageLock()
 
     if uri.isalpha():
-        # TODO
-        ...
+        yggdrasil = Yggdrasil(index)
+        if not lock.get_index(index):
+            yggdrasil.sync()
+            lock.add_index(index, yggdrasil.host, yggdrasil.uuid, dump=True)
+
+        if not (remote_ifp := yggdrasil.get(uri)):  # TODO 特定版本的捕获
+            return warning(f"未能在世界树[{yggdrasil.index}]中搜寻到规则包[{uri}].", echo)
+
+        ifp = loader.load_from_remote(
+            uri,
+            baseurl=index + remote_ifp["name"],
+            filename=remote_ifp["storage"],
+            echo=echo,
+        )
     elif urlparser.is_valid_url(uri):
         info(f"检定给定的 URI 地址[{uri}]为远程路径.", echo)
         filename = uri.rstrip("/").rpartition("/")[-1]
diff --git a/src/ipm/models/index.py b/src/ipm/models/index.py
new file mode 100644
index 0000000..2dc529e
--- /dev/null
+++ b/src/ipm/models/index.py
@@ -0,0 +1,51 @@
+from pathlib import Path
+from urllib.parse import urlparse
+from .lock import PackageLock
+from ..const import INDEX_PATH
+from ..typing import Storage
+from ..exceptions import LockLoadFailed
+
+import requests
+import tempfile
+import shutil
+
+
+class Yggdrasil:
+    source_path: Path
+
+    host: str
+    uuid: str
+    index: str
+    lock: PackageLock
+
+    def __init__(self, index: str) -> None:
+        INDEX_PATH.mkdir(parents=True, exist_ok=True)
+        self.index = index.rstrip("/") + "/"
+
+    def sync(self, echo: bool = False):  # TODO 输出内容
+        lock_bytes = requests.get(self.index + "infini.lock").content
+
+        temp_dir = tempfile.TemporaryDirectory()
+        temp_path = Path(temp_dir.name).resolve()
+        temp_lock_path = temp_path / "infini.lock"
+
+        temp_lock_file = temp_lock_path.open("wb")
+        temp_lock_file.write(lock_bytes)
+        temp_lock_file.close()
+
+        temp_lock = PackageLock(temp_lock_path)
+
+        if "uuid" not in temp_lock.metadata.keys():
+            temp_dir.cleanup()
+            raise LockLoadFailed(f"地址[{self.index}]不是合法的世界树服务器.")
+
+        self.uuid = temp_lock.metadata["uuid"]
+        self.host = temp_lock.metadata.get("host") or urlparse(self.index).netloc
+        self.source_path = INDEX_PATH / self.uuid
+
+        self.source_path.mkdir(parents=True, exist_ok=True)
+        shutil.copy2(temp_lock_path, self.source_path)
+        self.lock = PackageLock(self.source_path / "infini.lock")
+
+    def get(self, name: str, version: str | None = None) -> Storage | None:
+        return self.lock.get_particular_storage(name, version)