feat: implement WebADIS authentication and add medianumber retrieval functionality

src/backend/database.py

@@ -280,6 +280,21 @@ class Database:
         conn.commit()
         self.close_connection(conn)
 
+    def getWebADISAuth(self) -> Tuple[str, str]:
+        """
+        Get the WebADIS authentication data from the database
+
+        Returns:
+            Tuple[str, str]: The username and password for WebADIS
+        """
+        result = self.query_db(
+            "SELECT username, password FROM webadis_login WHERE effective_range='SAP'",
+            one=True,
+        )
+        if result is None:
+            return ("", "")
+        return (result[0], result[1])
+
     @log.catch
     def query_db(
         self,

src/backend/migrations/V002__create_table_webadis_login.sql

@@ -0,0 +1,10 @@
+BEGIN TRANSACTION;
+
+CREATE TABLE IF NOT EXISTS webadis_login (
+    id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+    username TEXT NOT NULL,
+    password TEXT NOT NULL
+  );
+
+COMMIT;
+

src/backend/migrations/V003_update_webadis_add_user_area.sql

@@ -0,0 +1,6 @@
+BEGIN TRANSACTION;
+
+ALTER TABLE webadis_login
+ADD COLUMN effective_range TEXT;
+
+COMMIT;

src/backend/threads_availchecker.py

@@ -3,7 +3,8 @@ from PySide6.QtCore import QThread
 from PySide6.QtCore import Signal as Signal
 
 from src.backend.database import Database
-from src.logic.webrequest import BibTextTransformer, WebRequest
+from src.backend.webadis import get_book_medianr
+from src.logic.webrequest import BibTextTransformer, TransformerType, WebRequest
 from src.shared.logging import log
 
 
@@ -37,7 +38,7 @@ class AvailChecker(QThread):
         )
         # Pre-create reusable request and transformer to avoid per-item overhead
         self._request = WebRequest().set_apparat(self.appnumber)
-        self._rds_transformer = BibTextTransformer("RDS")
+        self._rds_transformer = BibTextTransformer(TransformerType.RDS)
 
     def run(self):
         self.db = Database()
@@ -65,6 +66,12 @@ class AvailChecker(QThread):
                     break
             log.info(f"State of {link}: " + str(state))
             # #print("Updating availability of " + str(book_id) + " to " + str(state))
+            # use get_book_medianr to update the medianr of the book in the database
+            auth = self.db.getWebADISAuth
+            medianr = get_book_medianr(rds.items[0].callnumber, self.appnumber, auth)
+            book_data = book["bookdata"]
+            book_data.medianr = medianr
+            self.db.updateBookdata(book["id"], book_data)
             self.db.setAvailability(book_id, state)
             count += 1
             self.updateProgress.emit(count, len(self.links))

src/backend/webadis.py

@@ -0,0 +1,35 @@
+from playwright.sync_api import sync_playwright
+
+
+def get_book_medianr(signature: str, semesterapparat_nr: int, auth: tuple) -> str:
+    with sync_playwright() as playwright:
+        browser = playwright.chromium.launch(headless=True)
+        context = browser.new_context()
+        page = context.new_page()
+        page.goto(
+            "https://bsz.ibs-bw.de:22998/aDISWeb/app?service=direct/0/Home/$DirectLink&sp=SDAP42"
+        )
+        page.get_by_role("textbox", name="Benutzer").fill(auth[0])
+        page.get_by_role("textbox", name="Benutzer").press("Tab")
+        page.get_by_role("textbox", name="Kennwort").fill(auth[1])
+        page.get_by_role("textbox", name="Kennwort").press("Enter")
+        page.get_by_role("button", name="Katalog").click()
+        page.get_by_role("textbox", name="Signatur").click()
+        page.get_by_role("textbox", name="Signatur").fill(signature)
+        page.get_by_role("textbox", name="Signatur").press("Enter")
+        book_list = page.locator("iframe").content_frame.get_by_role(
+            "cell", name="Bibliothek der Pädagogischen"
+        )
+        # this will always find one result, we need to split the resulting text based on the entries that start with "* "
+        book_entries = book_list.inner_text().split("\n")
+        books = []
+        for entry in book_entries:
+            if entry.startswith("* "):
+                books.append(entry)
+        for book in books:
+            if f"Semesterapparat: {semesterapparat_nr}" in book:
+                return book.split("* ")[1].split(":")[0]
+
+        # ---------------------
+        context.close()
+        browser.close()