bugfix: keep blank parameters in query string, close #411 (#412)

.github/workflows/build-and-test.yaml

@@ -32,20 +32,24 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - run: |
-          make preprocess
-          pipx run build --sdist
-      - uses: actions/upload-artifact@v4  # https://github.com/actions/upload-artifact/issues/478
-        with:
-          path: ./dist/*.tar.gz
-          overwrite: true
 
       - uses: actions/setup-python@v5
         with:
           python-version: '3.10'
-      - run: |
+
+      - name: build sdist
+        run: |
+          make preprocess
+          pip install build
+          python -m build --sdist
           pip install ./dist/*.tar.gz
 
+      - name: upload artifacts
+        uses: actions/upload-artifact@v4  # https://github.com/actions/upload-artifact/issues/478
+        with:
+          path: ./dist/*.tar.gz
+          overwrite: true
+
   bdist:
     name: Build bdist wheels and test
     runs-on: ${{ matrix.os }}

curl_cffi/requests/session.py

@@ -109,7 +109,7 @@ def _is_absolute_url(url: str) -> bool:
 def _quote_path_and_params(url: str, quote_str: str = ""):
     safe = "".join(SAFE_CHARS - set(quote_str))
     parsed_url = urlparse(url)
-    parsed_get_args = parse_qsl(parsed_url.query)
+    parsed_get_args = parse_qsl(parsed_url.query, keep_blank_values=True)
     encoded_get_args = urlencode(parsed_get_args, doseq=True, safe=safe)
     return ParseResult(
         parsed_url.scheme,
@@ -141,7 +141,7 @@ def _update_url_params(url: str, params: Union[Dict, List, Tuple]) -> str:
     parsed_url = urlparse(url)
 
     # Extracting URL arguments from parsed URL, NOTE the result is a list, not dict
-    parsed_get_args = parse_qsl(parsed_url.query)
+    parsed_get_args = parse_qsl(parsed_url.query, keep_blank_values=True)
 
     # Merging URL arguments dict with new params
     old_args_counter = Counter(x[0] for x in parsed_get_args)

scripts/build.py

@@ -12,8 +12,6 @@
 # this is the upstream libcurl-impersonate version
 __version__ = "0.8.0"
 
-tmpdir = None
-
 
 def detect_arch():
     with open(Path(__file__).parent.parent / "libs.json") as f:
@@ -38,8 +36,13 @@ def detect_arch():
                 arch["libdir"] = os.path.expanduser(arch["libdir"])
             else:
                 global tmpdir
-                tmpdir = tempfile.TemporaryDirectory()
-                arch["libdir"] = tmpdir.name
+                if "CI" in os.environ:
+                    tmpdir = "./tmplibdir"
+                    os.makedirs(tmpdir, exist_ok=True)
+                    arch["libdir"] = tmpdir
+                else:
+                    tmpdir = tempfile.TemporaryDirectory()
+                    arch["libdir"] = tmpdir.name
             return arch
     raise Exception(f"Unsupported arch: {uname}")
 
@@ -69,8 +72,13 @@ def download_libcurl():
     os.makedirs(arch["libdir"], exist_ok=True)
     shutil.unpack_archive(file, arch["libdir"])
 
+    print("Files after unpacking")
+    print(os.listdir(arch["libdir"]))
+
 
 def get_curl_archives():
+    print("Files for linking")
+    print(os.listdir(arch["libdir"]))
     if arch["system"] == "Linux" and arch.get("link_type") == "static":
         # note that the order of libraries matters
         # https://stackoverflow.com/a/36581865

tests/unittest/conftest.py

@@ -262,7 +262,7 @@ async def echo_path(scope, receive, send):
 
 
 async def echo_params(scope, receive, send):
-    body = {"params": parse_qs(scope["query_string"].decode())}
+    body = {"params": parse_qs(scope["query_string"].decode(), keep_blank_values=True)}
     await send(
         {
             "type": "http.response.start",

tests/unittest/test_requests.py

@@ -149,6 +149,13 @@ def test_update_params(server):
     )
     assert r.content == b'{"params": {"a": ["1", "2"], "foo": ["z", "1", "2"]}}'
 
+    # empty values should be kept
+    r = requests.get(
+        str(server.url.copy_with(path="/echo_params?a=")),
+        params=[("foo", "1"), ("foo", "2")],
+    )
+    assert r.content == b'{"params": {"a": [""], "foo": ["1", "2"]}}'
+
 
 def test_url_encode(server):
     # https://github.com/lexiforest/curl_cffi/issues/394
@@ -209,6 +216,11 @@ def test_url_encode(server):
     r = requests.get(url, quote=False)
     assert r.url == url
 
+    # empty values should be kept
+    url = "http://127.0.0.1:8000/api?param1=value1&param2=&param3=value3"
+    r = requests.get(url)
+    assert r.url == url
+
 
 def test_headers(server):
     r = requests.get(str(server.url.copy_with(path="/echo_headers")), headers={"foo": "bar"})