auto prepend scheme to url (#1335)

skyvern/exceptions.py

@@ -504,11 +504,9 @@ class CachedActionPlanError(SkyvernException):
         super().__init__(message)
 
 
-class InvalidUrl(SkyvernHTTPException):
+class InvalidUrl(SkyvernException):
     def __init__(self, url: str) -> None:
-        super().__init__(
-            f"Invalid URL: {url}. Skyvern supports HTTP and HTTPS urls.", status_code=status.HTTP_400_BAD_REQUEST
-        )
+        super().__init__(f"Invalid URL: {url}. Skyvern supports HTTP and HTTPS urls with max 2083 character length.")
 
 
 class BlockedHost(SkyvernHTTPException):

skyvern/forge/agent.py

@@ -48,7 +48,7 @@ from skyvern.forge.sdk.api.files import get_path_for_workflow_download_directory
 from skyvern.forge.sdk.artifact.models import ArtifactType
 from skyvern.forge.sdk.core import skyvern_context
 from skyvern.forge.sdk.core.security import generate_skyvern_signature
-from skyvern.forge.sdk.core.validators import validate_url
+from skyvern.forge.sdk.core.validators import prepend_scheme_and_validate_url
 from skyvern.forge.sdk.db.enums import TaskType
 from skyvern.forge.sdk.models import Organization, Step, StepStatus
 from skyvern.forge.sdk.schemas.tasks import Task, TaskRequest, TaskResponse, TaskStatus
@@ -139,7 +139,11 @@ class ForgeAgent:
 
             task_url = working_page.url
 
-        task_url = validate_url(task_url)
+        task_url = prepend_scheme_and_validate_url(task_url)
+        totp_verification_url = task_block.totp_verification_url
+        if totp_verification_url:
+            totp_verification_url = prepend_scheme_and_validate_url(totp_verification_url)
+
         task = await app.DATABASE.create_task(
             url=task_url,
             task_type=task_block.task_type,
@@ -147,7 +151,7 @@ class ForgeAgent:
             terminate_criterion=task_block.terminate_criterion,
             title=task_block.title or task_block.label,
             webhook_callback_url=None,
-            totp_verification_url=task_block.totp_verification_url,
+            totp_verification_url=totp_verification_url,
             totp_identifier=task_block.totp_identifier,
             navigation_goal=task_block.navigation_goal,
             data_extraction_goal=task_block.data_extraction_goal,

skyvern/forge/sdk/core/validators.py

@@ -1,4 +1,5 @@
 import ipaddress
+from urllib.parse import urlparse
 
 from pydantic import HttpUrl, ValidationError, parse_obj_as
 
@@ -6,6 +7,26 @@ from skyvern.config import settings
 from skyvern.exceptions import InvalidUrl
 
 
+def prepend_scheme_and_validate_url(url: str) -> str:
+    if not url:
+        return url
+
+    parsed_url = urlparse(url=url)
+    if parsed_url.scheme and parsed_url.scheme not in ["http", "https"]:
+        raise InvalidUrl(url=url)
+
+    # if url doesn't contain any scheme, we prepend `https` to it by default
+    if not parsed_url.scheme:
+        url = f"https://{url}"
+
+    try:
+        HttpUrl(url)
+    except ValidationError:
+        raise InvalidUrl(url=url)
+
+    return url
+
+
 def validate_url(url: str) -> str:
     try:
         if url:

skyvern/forge/sdk/schemas/tasks.py

@@ -4,10 +4,11 @@ from datetime import datetime
 from enum import StrEnum
 from typing import Any
 
+from fastapi import status
 from pydantic import BaseModel, Field, HttpUrl, field_validator
 
-from skyvern.exceptions import BlockedHost, InvalidTaskStatusTransition, TaskAlreadyCanceled
-from skyvern.forge.sdk.core.validators import is_blocked_host
+from skyvern.exceptions import BlockedHost, InvalidTaskStatusTransition, SkyvernHTTPException, TaskAlreadyCanceled
+from skyvern.forge.sdk.core.validators import is_blocked_host, prepend_scheme_and_validate_url
 from skyvern.forge.sdk.db.enums import TaskType
 
 
@@ -99,28 +100,37 @@ class TaskBase(BaseModel):
 
 
 class TaskRequest(TaskBase):
-    url: HttpUrl = Field(
+    url: str = Field(
         ...,
         description="Starting URL for the task.",
         examples=["https://www.geico.com"],
     )
-    webhook_callback_url: HttpUrl | None = Field(
+    webhook_callback_url: str | None = Field(
         default=None,
         description="The URL to call when the task is completed.",
         examples=["https://my-webhook.com"],
     )
-    totp_verification_url: HttpUrl | None = None
+    totp_verification_url: str | None = None
 
     @field_validator("url", "webhook_callback_url", "totp_verification_url")
     @classmethod
-    def validate_urls(cls, v: HttpUrl | None) -> HttpUrl | None:
-        if not v or not v.host:
+    def validate_urls(cls, url: str | None) -> str | None:
+        if url is None:
+            return None
+
+        try:
+            url = prepend_scheme_and_validate_url(url=url)
+            v = HttpUrl(url=url)
+        except Exception as e:
+            raise SkyvernHTTPException(message=str(e), status_code=status.HTTP_400_BAD_REQUEST)
+
+        if not v.host:
             return None
         host = v.host
         blocked = is_blocked_host(host)
         if blocked:
             raise BlockedHost(host=host)
-        return v
+        return str(v)
 
 
 class TaskStatus(StrEnum):

skyvern/forge/sdk/workflow/models/workflow.py

@@ -2,8 +2,11 @@ from datetime import datetime
 from enum import StrEnum
 from typing import Any, List
 
-from pydantic import BaseModel
+from fastapi import status
+from pydantic import BaseModel, HttpUrl, field_validator
 
+from skyvern.exceptions import BlockedHost, SkyvernHTTPException
+from skyvern.forge.sdk.core.validators import is_blocked_host, prepend_scheme_and_validate_url
 from skyvern.forge.sdk.schemas.tasks import ProxyLocation
 from skyvern.forge.sdk.workflow.exceptions import WorkflowDefinitionHasDuplicateBlockLabels
 from skyvern.forge.sdk.workflow.models.block import BlockTypeVar
@@ -17,6 +20,26 @@ class WorkflowRequestBody(BaseModel):
     totp_verification_url: str | None = None
     totp_identifier: str | None = None
 
+    @field_validator("webhook_callback_url", "totp_verification_url")
+    @classmethod
+    def validate_urls(cls, url: str | None) -> str | None:
+        if url is None:
+            return None
+
+        try:
+            url = prepend_scheme_and_validate_url(url=url)
+            v = HttpUrl(url=url)
+        except Exception as e:
+            raise SkyvernHTTPException(message=str(e), status_code=status.HTTP_400_BAD_REQUEST)
+
+        if not v.host:
+            return None
+        host = v.host
+        blocked = is_blocked_host(host)
+        if blocked:
+            raise BlockedHost(host=host)
+        return str(v)
+
 
 class RunWorkflowResponse(BaseModel):
     workflow_id: str