fix: Make Sipi handle multiple KnoraAuthentication* cookies correc…

…tly (DEV-2271) (#2713)

sipi/scripts/authentication.lua

@@ -167,11 +167,22 @@ end
 -- @return jwt token or nil if the cookie is missing or invalid.
 function _get_jwt_token_from_cookie()
     log("authentication: checking for jwt token in cookie header", server.loglevel.LOG_DEBUG)
-    local cookie_header_value = _get_cookie_header()
-    if cookie_header_value == nil then
+    local cookie_name = env_knora_authentication_cookie_name()
+    local cookies = _get_cookie_header()
+    if cookies == nil then
+        log("authentication: no cookie header found", server.loglevel.LOG_DEBUG)
         return nil
     end
-    local cookie_name = env_knora_authentication_cookie_name()
-    local jwt_token = str_strip_prefix(cookie_header_value, cookie_name .. "=")
-    return jwt_token
+
+    cookie_name = cookie_name:lower()
+    for entry in cookies:gmatch("([^,]+)") do
+        local key, value = entry:match("([^=]+)=(.+)")
+        if key and value then
+            if key:lower() == cookie_name then
+                return value
+            end
+        end
+    end
+    log("authentication: cookie header does not contain " .. cookie_name, server.loglevel.LOG_DEBUG)
+    return nil
 end

sipi/scripts/env.lua

@@ -34,5 +34,5 @@ end
 -- Returns the name of the cookie used for authentication.
 function env_knora_authentication_cookie_name()
     local host_port_base32 = basexx.to_base32Custom(env_dsp_api_host_port())
-    return "KnoraAuthentication" .. host_port_base32
+    return string.lower("KnoraAuthentication" .. host_port_base32)
 end

sipi/scripts/strings.lua

@@ -3,6 +3,26 @@
 
 --- Utility functions for working with strings.
 
+-- Break a string up at occurrences of the first single character.
+-- In Lua, there is no built-in function for splitting a string at a specific character.
+-- http://lua-users.org/wiki/SplitJoin
+-- @param str the string to split.
+-- @param separator the separator character.
+-- @return a table containing:
+--- * the split string or
+--- * the original string if the separator was not found.
+function str_splitString(str, separator)
+    local result = {}
+    local pattern = string.format("([^%s]+)", separator)
+
+    for match in str:gmatch(pattern) do
+        table.insert(result, match)
+    end
+
+    return result
+end
+
+
 --- Checks if a string starts with a specific prefix.
 -- In Lua, there is no built-in function for checking if a string starts with a specific prefix.
 -- This function implements this functionality.
@@ -33,18 +53,18 @@ end
 -- @param tbl the table to transform.
 -- @return a string representation of the table.
 function tableToString(tbl)
-    local str = "{"
+    local str = "{\n"
     local isFirst = true
 
     for key, value in pairs(tbl) do
         if not isFirst then
-            str = str .. ", "
+            str = str .. "\n"
         end
 
         if type(value) == "table" then
-            str = str .. key .. "=" .. tableToString(value)
+            str = str .. key .. " = " .. tableToString(value) .. "\n"
         else
-            str = str .. key .. "=" .. tostring(value)
+            str = str .. key .. " = " .. tostring(value) .. "\n"
         end
 
         isFirst = false

webapi/src/it/scala/org/knora/sipi/SipiIT.scala

@@ -14,6 +14,8 @@ import com.github.tomakehurst.wiremock.client.WireMock.getRequestedFor
 import com.github.tomakehurst.wiremock.client.WireMock.urlEqualTo
 import com.github.tomakehurst.wiremock.core.WireMockConfiguration.options
 import com.github.tomakehurst.wiremock.matching.RequestPatternBuilder
+import org.apache.commons.codec.binary.Base32
+import spray.json.JsString
 import zio._
 import zio.http._
 import zio.http.model.Status
@@ -26,9 +28,17 @@ import scala.util.Success
 import scala.util.Try
 
 import org.knora.sipi.MockDspApiServer.verify._
+import org.knora.webapi.messages.StringFormatter
 import org.knora.webapi.messages.admin.responder.KnoraResponseADM
 import org.knora.webapi.messages.admin.responder.sipimessages._
+import org.knora.webapi.routing.JwtService
+import org.knora.webapi.routing.JwtServiceLive
+import org.knora.webapi.sharedtestdata.SharedTestDataADM
 import org.knora.webapi.testcontainers.SipiTestContainer
+import com.github.tomakehurst.wiremock.client.WireMock.equalTo
+import com.github.tomakehurst.wiremock.matching.RequestPatternBuilder.newRequestPattern
+
+import org.knora.sipi.SipiIT.fileEndpointSuite
 
 object SipiIT extends ZIOSpecDefault {
 
@@ -43,6 +53,48 @@ object SipiIT extends ZIOSpecDefault {
   private def getWithoutAuthorization(path: String) =
     SipiTestContainer.resolveUrl(path).map(Request.get).flatMap(Client.request(_))
 
+  private val jwt =
+    "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiIwLjAuMC4wOjMzMzMiLCJzdWIiOiJodHRwOi8vcmRmaC5jaC91c2Vycy9yb290IiwiYXVkIjpbIktub3JhIiwiU2lwaSJdLCJleHAiOjE2ODk3NTY1MzksImlhdCI6MTY4NzE2NDUzOSwianRpIjoiSG9SSFg5V1lSZHV6VnVmTXZFT1c4USJ9.tlTqr1NGjsOqnMRxjDW1TokDjGAPO5nvG-pcbn09Hrw"
+
+  private val cookiesSuite =
+    suite("Given a Request contains multiple auth cookies")(
+      test(
+        "When getting an existing file, " +
+          "then Sipi should extract the correct cookie, send it to dsp-api " +
+          "and responds with Ok"
+      ) {
+        for {
+          _ <- copyTestFilesToSipi
+          mockServer <- MockDspApiServer.resetAndStubGetResponse(
+                          s"/admin/files/$prefix/$imageTestfile",
+                          200,
+                          SipiFileInfoGetResponseADM(permissionCode = 2, restrictedViewSettings = None)
+                        )
+          response <-
+            SipiTestContainer
+              .resolveUrl(s"/$prefix/$imageTestfile/file")
+              .map { url =>
+                Request
+                  .get(url)
+                  .withCookie(s"KnoraAuthenticationGAXDALRQFYYDUMZTGMZQ9999aSecondCookie=anotherValueShouldBeIgnored")
+                  .withCookie(s"KnoraAuthenticationGAXDALRQFYYDUMZTGMZQ9999=$jwt")
+              }
+              .flatMap(Client.request(_))
+          requestToDspApiContainsJwt <- ZIO
+                                          .attempt(
+                                            mockServer.verify(
+                                              // Number of times the request should be received (in this case, only once)
+                                              1,
+                                              // The expected request with header and value
+                                              newRequestPattern().withHeader("Authorization", equalTo(s"Bearer $jwt"))
+                                            )
+                                          )
+                                          .logError
+                                          .fold(err => false, succ => true)
+        } yield assertTrue(response.status == Status.Ok, requestToDspApiContainsJwt)
+      }
+    )
+
   private val knoraJsonEndpointSuite =
     suite("Endpoint /{prefix}/{identifier}/knora.json")(
       suite("Given the user is unauthorized")(
@@ -208,6 +260,7 @@ object SipiIT extends ZIOSpecDefault {
 
   override def spec: Spec[TestEnvironment with Scope, Any] =
     suite("Sipi integration tests with mocked dsp-api")(
+      cookiesSuite,
       knoraJsonEndpointSuite,
       fileEndpointSuite,
       iiifEndpoint,