bvandeusen
c2a2162c86
When a Patreon source loses tier access, gallery-dl emits "Not allowed to view post N" warnings for every post AND yt-dlp tries to fetch HLS manifests which also 403. The ytdl error text contained "HTTP Error 403: Forbidden", which the classifier's ACCESS_DENIED_PATTERNS matched against the full combined stdout+stderr — so the run was labeled ACCESS_DENIED instead of TIER_LIMITED. Two fixes in one edit, because they're interlocked: - Compute per-item vs source-level error lines upfront. has_actual_error now reflects only source-level errors (previously the per-item exclusion was gated on skip evidence, which tier-limited runs don't produce since no content was accessed). - Strip per-item error lines from `combined` before downstream pattern matching so noise from recovered per-item failures doesn't latch onto ACCESS_DENIED / HTTP_ERROR / NOT_FOUND classifiers. Regression test: tier-gated Patreon run with yt-dlp HLS 403s → TIER_LIMITED, not ACCESS_DENIED. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
913 lines
37 KiB
Python
913 lines
37 KiB
Python
"""Gallery-dl wrapper service.
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This service provides a clean interface for executing gallery-dl downloads
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with support for per-source configuration overrides.
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"""
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import json
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import logging
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import subprocess
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import sys
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import tempfile
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import time
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from dataclasses import dataclass, field
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from enum import Enum
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from pathlib import Path
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from typing import Optional
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from app.config import get_settings
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from app.models.base import utcnow
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logger = logging.getLogger(__name__)
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class ErrorType(str, Enum):
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"""Error types for categorizing download failures."""
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AUTH_ERROR = "auth_error"
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RATE_LIMITED = "rate_limited"
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NOT_FOUND = "not_found"
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ACCESS_DENIED = "access_denied"
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NETWORK_ERROR = "network_error"
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NO_NEW_CONTENT = "no_new_content"
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TIER_LIMITED = "tier_limited"
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TIMEOUT = "timeout"
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HTTP_ERROR = "http_error"
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UNSUPPORTED_URL = "unsupported_url"
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UNKNOWN_ERROR = "unknown_error"
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class ContentType(str, Enum):
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"""Content types that can be downloaded from platforms."""
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# Patreon content types
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IMAGES = "images"
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IMAGE_LARGE = "image_large"
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ATTACHMENTS = "attachments"
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POSTFILE = "postfile"
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CONTENT = "content" # Embedded content in post body
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# Generic types
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ALL = "all"
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@dataclass
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class SourceConfig:
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"""Per-source configuration that can override global settings.
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These settings are stored in the source's metadata field and merged
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with global defaults when executing downloads.
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"""
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# Content types to download (platform-specific)
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# For Patreon: ["images", "image_large", "attachments", "postfile", "content"]
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# For others: typically just ["all"] or specific types
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content_types: list[str] = field(default_factory=lambda: ["all"])
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# Rate limiting overrides
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sleep: Optional[float] = None # Delay between downloads
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sleep_request: Optional[float] = None # Delay between requests
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# Directory/filename pattern overrides
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directory_pattern: Optional[str] = None
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filename_pattern: Optional[str] = None
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# Other options
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skip_existing: bool = True # Skip files already in archive
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save_metadata: bool = True # Save JSON metadata alongside files
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timeout: int = 3600 # Download timeout in seconds
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@classmethod
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def from_dict(cls, data: dict) -> "SourceConfig":
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"""Create SourceConfig from a dictionary (e.g., from source.metadata)."""
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return cls(
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content_types=data.get("content_types", ["all"]),
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sleep=data.get("sleep"),
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sleep_request=data.get("sleep_request"),
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directory_pattern=data.get("directory_pattern"),
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filename_pattern=data.get("filename_pattern"),
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skip_existing=data.get("skip_existing", True),
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save_metadata=data.get("save_metadata", True),
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timeout=data.get("timeout", 3600),
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)
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def to_dict(self) -> dict:
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"""Convert to dictionary for storage."""
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return {
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"content_types": self.content_types,
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"sleep": self.sleep,
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"sleep_request": self.sleep_request,
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"directory_pattern": self.directory_pattern,
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"filename_pattern": self.filename_pattern,
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"skip_existing": self.skip_existing,
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"save_metadata": self.save_metadata,
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"timeout": self.timeout,
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}
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@dataclass
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class DownloadResult:
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"""Result of a gallery-dl download execution."""
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success: bool
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url: str
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subscription_name: str
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platform: str
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# Output details
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files_downloaded: int = 0
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stdout: str = ""
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stderr: str = ""
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return_code: int = 0
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# Error details (if failed)
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error_type: Optional[ErrorType] = None
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error_message: Optional[str] = None
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# Timing
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duration_seconds: float = 0.0
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started_at: Optional[str] = None
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completed_at: Optional[str] = None
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class GalleryDLService:
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"""Service for executing gallery-dl downloads.
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Handles:
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- Building gallery-dl configuration with per-source overrides
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- Executing the subprocess with proper error handling
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- Parsing output and categorizing errors
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- Managing temporary config files
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"""
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# Error classification patterns — used by _categorize_error()
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AUTH_ERROR_PATTERNS = [
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"unauthorized",
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"login required",
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"please login",
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"must be logged in",
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"authentication required",
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"authenticationerror",
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"refresh-token",
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"session expired",
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"invalid cookie",
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"cookies are expired",
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"cookies have expired",
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"not logged in",
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]
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RATE_LIMIT_PATTERNS = [
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'" 429 ',
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"rate limit",
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"too many requests",
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"ratelimit",
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"throttl",
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]
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NOT_FOUND_PATTERNS = [
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'" 404 ',
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"error 404",
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"status: 404",
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"status code: 404",
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"404 not found",
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"page not found",
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"user not found",
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"creator not found",
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"artist not found",
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"content no longer available",
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"has been deleted",
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"account deleted",
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"profile does not exist",
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]
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GENERIC_NOT_FOUND_PATTERNS = ["does not exist", "no longer available"]
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NETWORK_ERROR_PATTERNS = [
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"timed out",
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"read timed out",
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"connect timed out",
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"connection timed out",
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"connection refused",
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"connection reset",
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"network unreachable",
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"name resolution failed",
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"name or service not known",
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"nodename nor servname provided",
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"ssl: certificate_verify_failed",
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"ssl: wrong_version_number",
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"certificate verify failed",
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"[errno",
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]
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ACCESS_DENIED_PATTERNS = [
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'" 403 ',
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"error 403",
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"forbidden",
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"access denied",
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"permission denied",
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"tier required",
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"pledge required",
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]
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# Platform-specific default content types and options
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# Directory patterns are relative - subscription_name/platform is prepended automatically
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PLATFORM_DEFAULTS = {
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"patreon": {
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"content_types": ["images", "image_large", "attachments", "postfile", "content"],
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"directory": ["{date:%Y-%m-%d}_{id}_{title[:40]}"],
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"filename": "{num:>02}_{filename}.{extension}",
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# Additional options
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"videos": True, # Download video content
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"embeds": True, # Download embedded URLs (YouTube, etc.)
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# Deep crawling options
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"cursor": True, # Enable cursor-based pagination for complete history
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},
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"subscribestar": {
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"content_types": ["all"],
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"directory": ["{date:%Y-%m-%d}_{id}_{title[:40]}"],
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"filename": "{num:>02}_{filename}.{extension}",
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# Automatic infinite scroll pagination is built-in
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},
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"hentaifoundry": {
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"content_types": ["all"], # Download all content types
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"directory": [], # Flat structure within platform folder
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"filename": "{category}_{index:>03}_{title[:50]}.{extension}",
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"include": "all", # Include pictures, scraps, stories - complete content
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# Automatic pagination through all pages (25 items/page)
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},
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"discord": {
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"content_types": ["all"],
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"directory": ["{channel[name]}"],
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"filename": "{date:%Y%m%d}_{id}_{filename}.{extension}",
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# Additional options. gallery-dl's discord extractor treats `embeds`
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# as an iterable of embed types (strings) or the string "all" — a
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# bool causes "argument of type 'bool' is not iterable" at runtime.
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"embeds": "all",
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"stickers": True, # Download stickers
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"reactions": False, # Skip reaction images
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# Deep crawling options
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"threads": True, # Include thread content for complete history
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},
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"pixiv": {
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"content_types": ["all"],
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"directory": ["{category}"],
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"filename": "{id}_{title[:50]}_{num:>02}.{extension}",
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# Content options
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"ugoira": True, # Download ugoira (animated) as WebM
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},
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"deviantart": {
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"content_types": ["all"],
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"directory": [], # Flat structure within platform folder
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"filename": "{index:>03}_{title[:50]}.{extension}",
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# Content options
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"flat": True, # Flatten folder structure
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"original": True, # Download original quality
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"mature": True, # Include mature content
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"metadata": True, # Include metadata
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},
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}
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def __init__(self, rate_limit: Optional[float] = None):
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"""Initialize the GalleryDL service.
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Args:
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rate_limit: Override for download rate limit (seconds between requests).
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If None, uses environment default.
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"""
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self.settings = get_settings()
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self._rate_limit = rate_limit if rate_limit is not None else self.settings.download_rate_limit
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self._base_config = self._load_base_config()
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def _load_base_config(self) -> dict:
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"""Load the base gallery-dl configuration file."""
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config_path = Path(self.settings.config_path) / "gallery-dl.conf"
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if config_path.exists():
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try:
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with open(config_path) as f:
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return json.load(f)
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except json.JSONDecodeError as e:
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logger.warning(f"Invalid gallery-dl.conf, using defaults: {e}")
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# Return sensible defaults if no config exists
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return self._get_default_config()
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def _get_default_config(self) -> dict:
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"""Get default gallery-dl configuration.
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Platform-specific defaults from PLATFORM_DEFAULTS are folded into
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extractor.<platform> so the returned dict is a complete, self-contained
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gallery-dl config — editable via the Settings view and writable to
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gallery-dl.conf for full user control. The internal `content_types`
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meta-key is stripped (it's our abstraction, not a gallery-dl option —
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it gets translated per-platform to `files`/`include` at run time).
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"""
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config = {
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"extractor": {
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"base-directory": self.settings.download_path,
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"archive": str(Path(self.settings.config_path) / "archive.sqlite3"),
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"skip": True,
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"sleep": self._rate_limit,
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# Faster request rate for pagination/checking (1/4 of rate_limit, min 0.5s)
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"sleep-request": max(0.5, self._rate_limit / 4),
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"retries": 3,
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"timeout": 30.0,
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"verify": True,
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"postprocessors": [
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{
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"name": "metadata",
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"mode": "json",
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"directory": ".",
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"filename": "{filename}.json",
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}
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],
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},
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"downloader": {
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"part": True,
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"part-directory": str(Path(self.settings.config_path) / "temp"),
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"retries": 3,
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"timeout": 120.0,
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},
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"output": {
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"progress": True,
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},
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}
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for platform_name, defaults in self.PLATFORM_DEFAULTS.items():
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config["extractor"][platform_name] = {
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key: value for key, value in defaults.items() if key != "content_types"
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}
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return config
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def _build_config_for_source(
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self,
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platform: str,
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source_config: SourceConfig,
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destination: str,
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) -> dict:
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"""Build a merged configuration for a specific source.
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Precedence: _get_default_config() (built-in) → gallery-dl.conf on disk
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→ per-source overrides. The platform's extractor section is preserved
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from the base config (deep copy) and source overrides are applied on
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top — so user tweaks in gallery-dl.conf survive. If the user's conf
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dropped the platform section entirely, re-seed from defaults so
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platform behavior stays sticky.
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"""
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config = json.loads(json.dumps(self._base_config)) # Deep copy
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if "extractor" not in config:
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config["extractor"] = {}
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# Re-seed platform defaults if the user's conf is missing the section.
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# Prevents "I deleted extractor.discord from my conf and silently lost
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# embeds/stickers/threads." from becoming a footgun.
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if platform not in config["extractor"]:
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seed = self._get_default_config()
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config["extractor"][platform] = seed.get("extractor", {}).get(platform, {})
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# extractor.* global overrides from source config
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config["extractor"]["base-directory"] = destination
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if source_config.sleep is not None:
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config["extractor"]["sleep"] = source_config.sleep
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if source_config.sleep_request is not None:
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config["extractor"]["sleep-request"] = source_config.sleep_request
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config["extractor"]["skip"] = source_config.skip_existing
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if source_config.save_metadata:
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config["extractor"]["postprocessors"] = [
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{
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"name": "metadata",
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"mode": "json",
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"directory": ".",
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"filename": "{filename}.json",
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}
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]
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else:
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config["extractor"].pop("postprocessors", None)
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# Source overrides on the platform-specific section. We preserve
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# whatever is in the base config (platform defaults or user's conf)
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# and only set keys that the source explicitly controls.
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platform_section = config["extractor"][platform]
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# Content types translate to platform-specific gallery-dl keys.
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if platform == "patreon":
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if "all" in source_config.content_types:
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platform_section["files"] = ["images", "image_large", "attachments", "postfile", "content"]
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else:
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platform_section["files"] = source_config.content_types
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elif platform == "hentaifoundry":
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if "pictures" in source_config.content_types or "all" in source_config.content_types:
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platform_section["include"] = "all"
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# Directory/filename: source override wins; otherwise inherit whatever
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# the base config already has (platform default or user-set value).
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if source_config.directory_pattern:
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platform_section["directory"] = source_config.directory_pattern
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if source_config.filename_pattern:
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platform_section["filename"] = source_config.filename_pattern
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platform_section["metadata"] = source_config.save_metadata
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return config
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def _categorize_error(self, return_code: int, stdout: str, stderr: str) -> tuple[ErrorType, str]:
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"""Categorize the error based on output and return code.
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Priority order:
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1. Check for skip messages (# prefixed lines or text patterns) → NO_NEW_CONTENT
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2. Check for actual errors (auth, rate limit, 404, network, etc.)
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3. Fall back to UNKNOWN_ERROR
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This ordering prevents false positives where debug output matches error patterns.
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"""
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combined = f"{stdout} {stderr}".lower()
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# === PHASE 1: Detect skip/no-new-content scenarios ===
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# Gallery-dl indicates skipped files two ways:
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# 1. Lines starting with '#' in stdout (e.g., "# /data/downloads/Artist/file.png")
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# 2. Text patterns like "skipping", "already exists"
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# Count lines starting with '#' (skip messages)
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skip_line_count = len([
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line for line in stdout.split('\n')
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if line.strip().startswith('#')
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])
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# Text-based skip indicators
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skip_text_indicators = ["skipping", "already exists", "archive"]
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has_skip_text = any(ind in combined for ind in skip_text_indicators)
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# Actual error indicators that override skip detection
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actual_error_indicators = [
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"][error]", # gallery-dl error log level: [patreon][error]
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"exception", # Python exceptions
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"traceback", # Python tracebacks
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"download failed",
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"extraction failed",
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]
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# Non-fatal error lines gallery-dl logs but recovers from. These are
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# per-item failures the run already moved past — they shouldn't cause
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# source-level misclassification:
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# - "not allowed to view" / "unable to get post": per-item paywall
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# warnings on Patreon URLs with mixed tier access.
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# - "failed to extract campaign id": vanity-URL HTML path fails,
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# gallery-dl falls back to /cw/<vanity> and recovers.
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# - "failed to download": per-item media failure (expired URL,
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# yt-dlp HLS 403 on tier-gated video, deleted attachment).
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# Downloader logs [download][error] and continues.
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# - "cannot import yt-dlp"/"youtube-dl": video backend missing;
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# surfaces via run_stats as a setup gap, not a source failure.
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per_item_patterns = [
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"not allowed to view",
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"unable to get post",
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"failed to extract campaign id",
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"failed to download",
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"cannot import yt-dlp",
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"cannot import youtube-dl",
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]
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all_lines = combined.split('\n')
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error_lines = [
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line for line in all_lines
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if any(ind in line for ind in actual_error_indicators)
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]
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per_item_error_lines = [
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line for line in error_lines
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if any(p in line for p in per_item_patterns)
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]
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source_level_error_lines = [
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line for line in error_lines
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if line not in set(per_item_error_lines)
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]
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# Only source-level errors block skip/tier-limited classification.
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# Per-item failures are tracked separately in run_stats.
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has_actual_error = bool(source_level_error_lines)
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# Strip per-item error lines from the text used for downstream pattern
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# matching. Otherwise noise like "HTTP Error 403: Forbidden" from a
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# yt-dlp HLS failure latches onto ACCESS_DENIED and masks the real
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# signal (tier gating, no new content, etc.).
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if per_item_error_lines:
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per_item_set = set(per_item_error_lines)
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combined = '\n'.join(line for line in all_lines if line not in per_item_set)
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# If we have skip evidence and no real errors, it's no_new_content
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if (skip_line_count > 0 or has_skip_text) and not has_actual_error:
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trigger = f"{skip_line_count} skip lines" if skip_line_count > 0 else "skip text indicator"
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logger.debug(f"Error classified as no_new_content via: {trigger}")
|
|
return ErrorType.NO_NEW_CONTENT, "No new content to download"
|
|
|
|
# Empty output with low return codes often means nothing to download
|
|
if return_code == 0 and not stdout.strip():
|
|
logger.debug("Error classified as no_new_content via: empty stdout with return code 0")
|
|
return ErrorType.NO_NEW_CONTENT, "No new content to download"
|
|
|
|
# === PHASE 2: Check for specific error types ===
|
|
|
|
# Auth errors - look for error context, not just HTTP codes that appear in debug logs
|
|
# HTTP debug lines look like: '"GET /path HTTP/1.1" 401 None' - we need to detect actual errors
|
|
# Check for 401 specifically as an HTTP error response (not in URLs)
|
|
# Look for patterns like "401" followed by error context or at end of HTTP log line
|
|
has_401_error = (
|
|
'" 401 ' in combined or # HTTP response: "GET /path HTTP/1.1" 401 None
|
|
"401 unauthorized" in combined or
|
|
"error 401" in combined or
|
|
"status: 401" in combined or
|
|
"status code: 401" in combined
|
|
)
|
|
if has_401_error or any(pattern in combined for pattern in self.AUTH_ERROR_PATTERNS):
|
|
matched = "401 HTTP response" if has_401_error else next(p for p in self.AUTH_ERROR_PATTERNS if p in combined)
|
|
logger.debug(f"Error classified as auth_error via pattern: '{matched}'")
|
|
return ErrorType.AUTH_ERROR, "Authentication failed - cookies may be expired or invalid"
|
|
|
|
# Rate limiting - look for actual rate limit errors
|
|
if any(pattern in combined for pattern in self.RATE_LIMIT_PATTERNS):
|
|
matched = next(p for p in self.RATE_LIMIT_PATTERNS if p in combined)
|
|
logger.debug(f"Error classified as rate_limited via pattern: '{matched}'")
|
|
return ErrorType.RATE_LIMITED, "Rate limited by server - try increasing sleep time"
|
|
|
|
# 404 Not Found - check for HTTP 404 responses with error context
|
|
# Be specific to avoid matching "not found" in debug messages like "archive entry not found"
|
|
# Also require error-level context for generic patterns to avoid false positives
|
|
has_specific_404 = any(pattern in combined for pattern in self.NOT_FOUND_PATTERNS)
|
|
has_generic_with_error = any(
|
|
pattern in combined and "][error]" in combined
|
|
for pattern in self.GENERIC_NOT_FOUND_PATTERNS
|
|
)
|
|
if has_specific_404 or has_generic_with_error:
|
|
if has_specific_404:
|
|
matched = next(p for p in self.NOT_FOUND_PATTERNS if p in combined)
|
|
logger.debug(f"Error classified as not_found via specific 404 pattern: '{matched}'")
|
|
else:
|
|
matched = next(p for p in self.GENERIC_NOT_FOUND_PATTERNS if p in combined)
|
|
logger.debug(f"Error classified as not_found via generic pattern + error context: '{matched}'")
|
|
return ErrorType.NOT_FOUND, "URL not found - artist may have changed username or deleted content"
|
|
|
|
# Network errors - use specific patterns to avoid matching config values
|
|
# (e.g., "timeout": 30.0 in debug output should not trigger network_error)
|
|
if any(pattern in combined for pattern in self.NETWORK_ERROR_PATTERNS):
|
|
matched = next(p for p in self.NETWORK_ERROR_PATTERNS if p in combined)
|
|
logger.debug(f"Error classified as network_error via pattern: '{matched}'")
|
|
return ErrorType.NETWORK_ERROR, "Network error - check internet connection"
|
|
|
|
# 403 Forbidden / Access denied
|
|
if any(pattern in combined for pattern in self.ACCESS_DENIED_PATTERNS):
|
|
matched = next(p for p in self.ACCESS_DENIED_PATTERNS if p in combined)
|
|
logger.debug(f"Error classified as access_denied via pattern: '{matched}'")
|
|
return ErrorType.ACCESS_DENIED, "Access denied - may need higher subscription tier"
|
|
|
|
# Generic HTTP errors
|
|
if "http error" in combined or "httperror" in combined:
|
|
trigger = "http error" if "http error" in combined else "httperror"
|
|
logger.debug(f"Error classified as http_error via trigger: '{trigger}'")
|
|
return ErrorType.HTTP_ERROR, "HTTP error occurred"
|
|
|
|
# Unsupported URL
|
|
if "no suitable" in combined or "unsupported" in combined or "no extractor" in combined:
|
|
trigger = next(t for t in ("no suitable", "unsupported", "no extractor") if t in combined)
|
|
logger.debug(f"Error classified as unsupported_url via trigger: '{trigger}'")
|
|
return ErrorType.UNSUPPORTED_URL, "URL format not supported by gallery-dl"
|
|
|
|
# If we got here with a non-catastrophic return code, saw skip activity, and no
|
|
# specific error patterns matched, it's likely just no new content.
|
|
# gallery-dl exit codes: 1 = some extractions skipped, 4 = no URLs extracted
|
|
# (common with /c/user/posts Patreon URLs where all content is already archived)
|
|
if return_code in (1, 4) and (skip_line_count > 0 or has_skip_text) and not has_actual_error:
|
|
trigger = f"{skip_line_count} skip lines" if skip_line_count > 0 else "skip text indicator"
|
|
logger.debug(f"Error classified as no_new_content via: rc{return_code} + {trigger}")
|
|
return ErrorType.NO_NEW_CONTENT, "No new content to download"
|
|
|
|
# Subscription-tier gating: gallery-dl emits [patreon][warning] "Not allowed to
|
|
# view post N" for posts the current auth token can't access. A run that exits
|
|
# 1/4 with only these warnings and no downloads means the account's tier doesn't
|
|
# cover the requested posts — it's a legitimate state, not a failure.
|
|
if return_code in (1, 4) and not has_actual_error:
|
|
tier_gated_lines = [
|
|
line for line in combined.split('\n')
|
|
if "][warning]" in line and "not allowed to view post" in line
|
|
]
|
|
if tier_gated_lines:
|
|
count = len(tier_gated_lines)
|
|
logger.debug(f"Error classified as tier_limited via: rc{return_code} + {count} tier-gated warnings")
|
|
return (
|
|
ErrorType.TIER_LIMITED,
|
|
f"Subscription tier does not grant access to {count} post{'s' if count != 1 else ''}",
|
|
)
|
|
|
|
# Final fallback - genuine unknown error
|
|
return ErrorType.UNKNOWN_ERROR, f"Unknown error (return code: {return_code})"
|
|
|
|
def _count_downloaded_files(self, stdout: str) -> int:
|
|
"""Count the number of files downloaded from stdout.
|
|
|
|
Gallery-dl writes each downloaded file path to stdout as an absolute path
|
|
(starting with '/'). Log lines contain '[' prefixes; verbose HTTP lines
|
|
go to stderr. Counting only lines starting with '/' avoids over-counting
|
|
log and progress output.
|
|
"""
|
|
if not stdout:
|
|
return 0
|
|
|
|
return sum(1 for line in stdout.splitlines() if line.strip().startswith("/"))
|
|
|
|
def _compute_run_stats(self, return_code: int, stdout: str, stderr: str) -> dict:
|
|
"""Summarize a gallery-dl run as structured counts for UI/analytics.
|
|
|
|
Returns a flat dict:
|
|
- exit_code: gallery-dl's process return code
|
|
- downloaded_count: files actually written (stdout lines starting with '/')
|
|
- skipped_count: archive-hit skips (stdout '#' lines + stderr 'skipping ' lines)
|
|
- per_item_failures: [download][error] lines (single-item failures the
|
|
downloader logs but recovers from)
|
|
- warning_count: [*][warning] lines
|
|
- tier_gated_count: 'not allowed to view post' warnings (Patreon
|
|
subscription-tier gating — informational, not a failure)
|
|
"""
|
|
stdout = stdout or ""
|
|
stderr = stderr or ""
|
|
|
|
skipped_stdout = sum(
|
|
1 for line in stdout.splitlines() if line.strip().startswith("#")
|
|
)
|
|
skipped_stderr = sum(
|
|
1 for line in stderr.splitlines() if "] skipping " in line.lower()
|
|
)
|
|
|
|
per_item_failures = sum(
|
|
1 for line in stderr.splitlines()
|
|
if "[download][error]" in line.lower() and "failed to download" in line.lower()
|
|
)
|
|
|
|
warning_count = sum(
|
|
1 for line in stderr.splitlines() if "][warning]" in line.lower()
|
|
)
|
|
|
|
tier_gated_count = sum(
|
|
1 for line in stderr.splitlines()
|
|
if "][warning]" in line.lower() and "not allowed to view post" in line.lower()
|
|
)
|
|
|
|
return {
|
|
"exit_code": return_code,
|
|
"downloaded_count": self._count_downloaded_files(stdout),
|
|
"skipped_count": skipped_stdout + skipped_stderr,
|
|
"per_item_failures": per_item_failures,
|
|
"warning_count": warning_count,
|
|
"tier_gated_count": tier_gated_count,
|
|
}
|
|
|
|
@staticmethod
|
|
def _extract_errors_warnings(stderr: str) -> str:
|
|
"""Filter stderr down to just [error] / [warning] lines.
|
|
|
|
Gallery-dl's verbose mode sends all logging to stderr including [debug]
|
|
and urllib3 connection-pool noise. This helper produces the short
|
|
summary a user actually wants when opening a failed download.
|
|
"""
|
|
if not stderr:
|
|
return ""
|
|
|
|
kept = [
|
|
line for line in stderr.splitlines()
|
|
if "][error]" in line.lower() or "][warning]" in line.lower()
|
|
]
|
|
return "\n".join(kept)
|
|
|
|
@staticmethod
|
|
def _truncate_log(text: str, max_bytes: int = 500_000) -> str:
|
|
"""Cap a log field at max_bytes by keeping the head and tail.
|
|
|
|
Verbose 10+ minute runs can produce multi-MB stderr blobs. For display
|
|
and storage, we keep the first and last halves and drop the middle with
|
|
a marker indicating how many lines were elided. Beginning is useful for
|
|
context (config, URL); end is useful for the actual failure.
|
|
"""
|
|
if not text:
|
|
return text
|
|
|
|
encoded = text.encode("utf-8")
|
|
if len(encoded) <= max_bytes:
|
|
return text
|
|
|
|
half = max_bytes // 2
|
|
head = encoded[:half].decode("utf-8", errors="ignore")
|
|
tail = encoded[-half:].decode("utf-8", errors="ignore")
|
|
|
|
head_lines = head.count("\n")
|
|
tail_lines = tail.count("\n")
|
|
total_lines = text.count("\n")
|
|
elided = max(0, total_lines - head_lines - tail_lines)
|
|
|
|
marker = f"\n\n... [{elided} lines elided, {len(encoded) - max_bytes} bytes] ...\n\n"
|
|
return head + marker + tail
|
|
|
|
async def download(
|
|
self,
|
|
url: str,
|
|
subscription_name: str,
|
|
platform: str,
|
|
source_config: Optional[SourceConfig] = None,
|
|
cookies_path: Optional[str] = None,
|
|
auth_token: Optional[str] = None,
|
|
) -> DownloadResult:
|
|
"""Execute a gallery-dl download.
|
|
|
|
Args:
|
|
url: The URL to download from
|
|
subscription_name: Name of the subscription/artist (used for destination folder)
|
|
platform: Platform name (patreon, subscribestar, etc.)
|
|
source_config: Optional per-source configuration overrides
|
|
cookies_path: Optional path to cookies file
|
|
auth_token: Optional auth token (for Discord and other token-based platforms)
|
|
|
|
Returns:
|
|
DownloadResult with success status and details
|
|
|
|
Downloads are saved to: {download_path}/{subscription_name}/{platform}/{post_folders}
|
|
"""
|
|
import asyncio
|
|
|
|
start_time = time.time()
|
|
started_at = utcnow().isoformat()
|
|
|
|
# Use default config if none provided
|
|
if source_config is None:
|
|
source_config = SourceConfig()
|
|
|
|
# Build destination path: subscription_name/platform
|
|
destination = str(Path(self.settings.download_path) / subscription_name / platform)
|
|
|
|
# Build merged configuration
|
|
config = self._build_config_for_source(platform, source_config, destination)
|
|
|
|
# Add cookies if provided
|
|
if cookies_path:
|
|
config["extractor"]["cookies"] = cookies_path
|
|
|
|
# Add auth token for Discord
|
|
if auth_token and platform == "discord":
|
|
if "discord" not in config["extractor"]:
|
|
config["extractor"]["discord"] = {}
|
|
config["extractor"]["discord"]["token"] = auth_token
|
|
|
|
# Add refresh token for Pixiv
|
|
if auth_token and platform == "pixiv":
|
|
if "pixiv" not in config["extractor"]:
|
|
config["extractor"]["pixiv"] = {}
|
|
config["extractor"]["pixiv"]["refresh-token"] = auth_token
|
|
|
|
# Write temporary config file
|
|
with tempfile.NamedTemporaryFile(
|
|
mode="w",
|
|
suffix=".json",
|
|
delete=False,
|
|
dir=self.settings.config_path,
|
|
) as f:
|
|
json.dump(config, f, indent=2)
|
|
temp_config_path = f.name
|
|
|
|
try:
|
|
# Build command
|
|
cmd = [
|
|
sys.executable,
|
|
"-m",
|
|
"gallery_dl",
|
|
"--config",
|
|
temp_config_path,
|
|
"--verbose",
|
|
url,
|
|
]
|
|
|
|
logger.info(f"Executing gallery-dl for {subscription_name}/{platform}: {url}")
|
|
logger.debug(f"Command: {' '.join(cmd)}")
|
|
|
|
# Execute subprocess
|
|
# Run in thread pool to not block async event loop
|
|
loop = asyncio.get_running_loop()
|
|
proc = await loop.run_in_executor(
|
|
None,
|
|
lambda: subprocess.run(
|
|
cmd,
|
|
capture_output=True,
|
|
text=True,
|
|
timeout=source_config.timeout,
|
|
),
|
|
)
|
|
|
|
duration = time.time() - start_time
|
|
completed_at = utcnow().isoformat()
|
|
|
|
# Log output
|
|
if proc.stdout:
|
|
logger.debug(f"STDOUT for {subscription_name}/{platform}:\n{proc.stdout}")
|
|
if proc.stderr:
|
|
logger.debug(f"STDERR for {subscription_name}/{platform}:\n{proc.stderr}")
|
|
|
|
# Determine success
|
|
if proc.returncode == 0:
|
|
return DownloadResult(
|
|
success=True,
|
|
url=url,
|
|
subscription_name=subscription_name,
|
|
platform=platform,
|
|
files_downloaded=self._count_downloaded_files(proc.stdout),
|
|
stdout=proc.stdout,
|
|
stderr=proc.stderr,
|
|
return_code=proc.returncode,
|
|
duration_seconds=duration,
|
|
started_at=started_at,
|
|
completed_at=completed_at,
|
|
)
|
|
|
|
# Handle errors
|
|
error_type, error_message = self._categorize_error(
|
|
proc.returncode, proc.stdout, proc.stderr
|
|
)
|
|
|
|
# NO_NEW_CONTENT and TIER_LIMITED are non-failure states — the run completed
|
|
# as well as it could given external constraints (archive up-to-date, or
|
|
# current subscription tier can't see the requested posts).
|
|
success = error_type in (ErrorType.NO_NEW_CONTENT, ErrorType.TIER_LIMITED)
|
|
|
|
return DownloadResult(
|
|
success=success,
|
|
url=url,
|
|
subscription_name=subscription_name,
|
|
platform=platform,
|
|
files_downloaded=self._count_downloaded_files(proc.stdout) if success else 0,
|
|
stdout=proc.stdout,
|
|
stderr=proc.stderr,
|
|
return_code=proc.returncode,
|
|
error_type=error_type,
|
|
error_message=error_message,
|
|
duration_seconds=duration,
|
|
started_at=started_at,
|
|
completed_at=completed_at,
|
|
)
|
|
|
|
except subprocess.TimeoutExpired:
|
|
duration = time.time() - start_time
|
|
logger.error(f"Download timeout for {subscription_name}/{platform} after {duration:.1f}s")
|
|
|
|
return DownloadResult(
|
|
success=False,
|
|
url=url,
|
|
subscription_name=subscription_name,
|
|
platform=platform,
|
|
error_type=ErrorType.TIMEOUT,
|
|
error_message=f"Download timed out after {source_config.timeout} seconds",
|
|
duration_seconds=duration,
|
|
started_at=started_at,
|
|
completed_at=utcnow().isoformat(),
|
|
)
|
|
|
|
except Exception as e:
|
|
duration = time.time() - start_time
|
|
logger.exception(f"Unexpected error downloading {subscription_name}/{platform}: {e}")
|
|
|
|
return DownloadResult(
|
|
success=False,
|
|
url=url,
|
|
subscription_name=subscription_name,
|
|
platform=platform,
|
|
error_type=ErrorType.UNKNOWN_ERROR,
|
|
error_message=str(e),
|
|
duration_seconds=duration,
|
|
started_at=started_at,
|
|
completed_at=utcnow().isoformat(),
|
|
)
|
|
|
|
finally:
|
|
# Clean up temporary config file
|
|
try:
|
|
Path(temp_config_path).unlink()
|
|
except Exception:
|
|
pass
|
|
|
|
def get_platform_content_types(self, platform: str) -> list[str]:
|
|
"""Get available content types for a platform.
|
|
|
|
Useful for UI to show what options are available.
|
|
"""
|
|
if platform == "patreon":
|
|
return ["images", "image_large", "attachments", "postfile", "content"]
|
|
elif platform == "hentaifoundry":
|
|
return ["all", "pictures", "scraps", "stories"]
|
|
elif platform == "subscribestar":
|
|
return ["all"] # No granular control
|
|
elif platform == "discord":
|
|
return ["all"] # No granular control
|
|
elif platform == "pixiv":
|
|
return ["all", "illusts", "manga", "bookmarks"]
|
|
elif platform == "deviantart":
|
|
return ["all", "gallery", "scraps", "favorites"]
|
|
else:
|
|
return ["all"]
|
|
|
|
def get_default_config_for_platform(self, platform: str) -> dict:
|
|
"""Get the default configuration for a platform.
|
|
|
|
Useful for showing defaults in UI.
|
|
"""
|
|
defaults = self.PLATFORM_DEFAULTS.get(platform, {})
|
|
return {
|
|
"content_types": defaults.get("content_types", ["all"]),
|
|
"directory_pattern": defaults.get("directory"),
|
|
"filename_pattern": defaults.get("filename"),
|
|
"sleep": self._rate_limit,
|
|
"sleep_request": max(0.5, self._rate_limit / 4),
|
|
}
|