From dfe76763eeb5195bb352f200370cdb48d36a626c Mon Sep 17 00:00:00 2001 From: RohanExploit <178623867+RohanExploit@users.noreply.github.com> Date: Tue, 24 Feb 2026 13:59:25 +0000 Subject: [PATCH 1/4] =?UTF-8?q?=E2=9A=A1=20Bolt:=20Optimize=20blockchain?= =?UTF-8?q?=20integrity=20verification=20to=20O(1)?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This change optimizes the blockchain-style chaining for civic issues by: 1. Adding a `previous_integrity_hash` column to the `Issue` model. 2. Storing the previous hash in the record during issue creation. 3. Using the stored hash for O(1) verification in the `blockchain-verify` endpoint, eliminating an extra database query. 4. Adding indexes to `integrity_hash` and `previous_integrity_hash` for fast lookups. Performance Impact: - Reduces database queries during integrity verification from 2 to 1 (O(1)). - Faster lookups for audit trails via new database indexes. --- .jules/bolt.md | 4 ++++ backend/init_db.py | 6 ++++++ backend/models.py | 3 ++- backend/routers/issues.py | 32 +++++++++++++++++++------------- 4 files changed, 31 insertions(+), 14 deletions(-) diff --git a/.jules/bolt.md b/.jules/bolt.md index 6f687f0a..01c4beb6 100644 --- a/.jules/bolt.md +++ b/.jules/bolt.md @@ -37,3 +37,7 @@ ## 2026-02-08 - Return Type Consistency in Utilities **Learning:** Inconsistent return types in shared utility functions (like `process_uploaded_image`) can cause runtime crashes across multiple modules, especially when some expect tuples and others expect single values. This can lead to deployment failures that are hard to debug without full integration logs. **Action:** Always maintain strict return type consistency for core utilities. Use type hints and verify all call sites when changing a function's signature. Ensure that performance-oriented optimizations (like returning multiple processed formats) are applied uniformly. + +## 2026-02-09 - O(1) Blockchain Verification +**Learning:** Storing the previous block's hash directly in the current record allows for O(1) integrity verification by eliminating the need to query the preceding record from the database. This significantly reduces database round-trips during audit and verification tasks. +**Action:** When implementing chaining mechanisms (like blockchain or audit trails), persist the previous record's signature/hash in the current record. Use database indexes on both `integrity_hash` and `previous_integrity_hash` to ensure fast lookups. diff --git a/backend/init_db.py b/backend/init_db.py index 8021447a..723aae44 100644 --- a/backend/init_db.py +++ b/backend/init_db.py @@ -95,6 +95,12 @@ def index_exists(table, index_name): if not index_exists("issues", "ix_issues_user_email"): conn.execute(text("CREATE INDEX IF NOT EXISTS ix_issues_user_email ON issues (user_email)")) + if not index_exists("issues", "ix_issues_integrity_hash"): + conn.execute(text("CREATE INDEX IF NOT EXISTS ix_issues_integrity_hash ON issues (integrity_hash)")) + + if not index_exists("issues", "ix_issues_previous_integrity_hash"): + conn.execute(text("CREATE INDEX IF NOT EXISTS ix_issues_previous_integrity_hash ON issues (previous_integrity_hash)")) + # Voice and Language Support Columns (Issue #291) if not column_exists("issues", "submission_type"): conn.execute(text("ALTER TABLE issues ADD COLUMN submission_type VARCHAR DEFAULT 'text'")) diff --git a/backend/models.py b/backend/models.py index 07149e5e..f56e2452 100644 --- a/backend/models.py +++ b/backend/models.py @@ -163,7 +163,8 @@ class Issue(Base): longitude = Column(Float, nullable=True, index=True) location = Column(String, nullable=True) action_plan = Column(JSONEncodedDict, nullable=True) - integrity_hash = Column(String, nullable=True) # Blockchain integrity seal + integrity_hash = Column(String, nullable=True, index=True) # Blockchain integrity seal + previous_integrity_hash = Column(String, nullable=True, index=True) # Link to previous block for O(1) verification # Voice and Language Support (Issue #291) submission_type = Column(String, default="text") # 'text', 'voice' diff --git a/backend/routers/issues.py b/backend/routers/issues.py index 2ad27ca3..2e7f63db 100644 --- a/backend/routers/issues.py +++ b/backend/routers/issues.py @@ -170,12 +170,14 @@ async def create_issue( if deduplication_info is None or not deduplication_info.has_nearby_issues: # Blockchain feature: calculate integrity hash for the report # Optimization: Fetch only the last hash to maintain the chain with minimal overhead - prev_issue = await run_in_threadpool( + # Optimization: Fetch only the last hash to maintain the chain with minimal overhead + last_issue_row = await run_in_threadpool( lambda: db.query(Issue.integrity_hash).order_by(Issue.id.desc()).first() ) - prev_hash = prev_issue[0] if prev_issue and prev_issue[0] else "" + # Define prev_hash explicitly for chaining and storage + prev_hash = last_issue_row[0] if last_issue_row and last_issue_row[0] else "" -# Simple but effective SHA-256 chaining + # Simple but effective SHA-256 chaining hash_content = f"{description}|{category}|{prev_hash}" integrity_hash = hashlib.sha256(hash_content.encode()).hexdigest() @@ -196,7 +198,8 @@ async def create_issue( longitude=longitude, location=location, action_plan=initial_action_plan, - integrity_hash=integrity_hash + integrity_hash=integrity_hash, + previous_integrity_hash=prev_hash ) # Offload blocking DB operations to threadpool @@ -615,24 +618,27 @@ def get_user_issues( async def verify_blockchain_integrity(issue_id: int, db: Session = Depends(get_db)): """ Verify the cryptographic integrity of a report using the blockchain-style chaining. - Optimized: Uses column projection to fetch only needed data. + Optimized: Uses stored previous hash for O(1) verification. """ - # Fetch current issue data + # Fetch current issue data including stored previous hash current_issue = await run_in_threadpool( lambda: db.query( - Issue.id, Issue.description, Issue.category, Issue.integrity_hash + Issue.id, Issue.description, Issue.category, Issue.integrity_hash, Issue.previous_integrity_hash ).filter(Issue.id == issue_id).first() ) if not current_issue: raise HTTPException(status_code=404, detail="Issue not found") - # Fetch previous issue's integrity hash to verify the chain - prev_issue_hash = await run_in_threadpool( - lambda: db.query(Issue.integrity_hash).filter(Issue.id < issue_id).order_by(Issue.id.desc()).first() - ) - - prev_hash = prev_issue_hash[0] if prev_issue_hash and prev_issue_hash[0] else "" + # Optimization: Use stored previous hash if available for O(1) verification + if current_issue.previous_integrity_hash is not None: + prev_hash = current_issue.previous_integrity_hash + else: + # Fallback for legacy records + prev_issue_hash = await run_in_threadpool( + lambda: db.query(Issue.integrity_hash).filter(Issue.id < issue_id).order_by(Issue.id.desc()).first() + ) + prev_hash = prev_issue_hash[0] if prev_issue_hash and prev_issue_hash[0] else "" # Recompute hash based on current data and previous hash # Chaining logic: hash(description|category|prev_hash) From 5a1881f4adadefb4187054feb7487abefcd417c3 Mon Sep 17 00:00:00 2001 From: RohanExploit <178623867+RohanExploit@users.noreply.github.com> Date: Tue, 24 Feb 2026 14:09:49 +0000 Subject: [PATCH 2/4] =?UTF-8?q?=E2=9A=A1=20Bolt:=20Spatial=20query=20optim?= =?UTF-8?q?ization=20&=20Render=20deployment=20fix?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This PR implements a performance optimization and fixes the Render deployment: 1. **Spatial Query Optimization**: Added `.limit(100)` to bounding box queries in `create_issue` and `get_nearby_issues`. This prevents performance bottlenecks in dense urban areas by capping the number of candidates for distance calculation. 2. **Render Deployment Fix**: Updated `render.yaml` to set `PYTHONPATH: .`. This ensures that `uvicorn` can correctly import the `backend` package when starting from the repository root, resolving the reported deployment failure. 3. **Blockchain Lookups**: Kept the database indexes on `integrity_hash` and `previous_integrity_hash` in `models.py` and `init_db.py` to accelerate cryptographic audit trails. 4. **Security**: Reverted O(1) blockchain verification to the secure version that queries the actual previous record from the database, ensuring that any tampering with history is detected. Performance Impact: - Significant speedup in spatial deduplication checks for high-density areas. - Reduced database load for nearby issue searches. - Faster lookups for blockchain integrity verification via indexes. --- backend/routers/issues.py | 32 ++++++++++++++++---------------- render.yaml | 2 +- 2 files changed, 17 insertions(+), 17 deletions(-) diff --git a/backend/routers/issues.py b/backend/routers/issues.py index 2e7f63db..893badc2 100644 --- a/backend/routers/issues.py +++ b/backend/routers/issues.py @@ -97,7 +97,8 @@ async def create_issue( # Optimization: Use bounding box to filter candidates in SQL min_lat, max_lat, min_lon, max_lon = get_bounding_box(latitude, longitude, 50.0) - # Performance Boost: Use column projection to avoid loading full model instances + # Performance Boost: Use column projection and limit results to avoid loading full model instances + # in dense areas (max 100 records for spatial search candidates) open_issues = await run_in_threadpool( lambda: db.query( Issue.id, @@ -114,7 +115,7 @@ async def create_issue( Issue.latitude <= max_lat, Issue.longitude >= min_lon, Issue.longitude <= max_lon - ).all() + ).limit(100).all() ) nearby_issues_with_distance = find_nearby_issues( @@ -309,7 +310,8 @@ def get_nearby_issues( # Optimization: Use bounding box to filter candidates in SQL min_lat, max_lat, min_lon, max_lon = get_bounding_box(latitude, longitude, radius) - # Performance Boost: Use column projection to avoid loading full model instances + # Performance Boost: Use column projection and limit results to avoid loading full model instances + # in dense areas (max 100 records for spatial search candidates) open_issues = db.query( Issue.id, Issue.description, @@ -325,7 +327,7 @@ def get_nearby_issues( Issue.latitude <= max_lat, Issue.longitude >= min_lon, Issue.longitude <= max_lon - ).all() + ).limit(100).all() nearby_issues_with_distance = find_nearby_issues( open_issues, latitude, longitude, radius_meters=radius @@ -618,27 +620,25 @@ def get_user_issues( async def verify_blockchain_integrity(issue_id: int, db: Session = Depends(get_db)): """ Verify the cryptographic integrity of a report using the blockchain-style chaining. - Optimized: Uses stored previous hash for O(1) verification. + Secure: Fetches the actual previous record's hash from DB to ensure chain integrity. """ - # Fetch current issue data including stored previous hash + # Fetch current issue data current_issue = await run_in_threadpool( lambda: db.query( - Issue.id, Issue.description, Issue.category, Issue.integrity_hash, Issue.previous_integrity_hash + Issue.id, Issue.description, Issue.category, Issue.integrity_hash ).filter(Issue.id == issue_id).first() ) if not current_issue: raise HTTPException(status_code=404, detail="Issue not found") - # Optimization: Use stored previous hash if available for O(1) verification - if current_issue.previous_integrity_hash is not None: - prev_hash = current_issue.previous_integrity_hash - else: - # Fallback for legacy records - prev_issue_hash = await run_in_threadpool( - lambda: db.query(Issue.integrity_hash).filter(Issue.id < issue_id).order_by(Issue.id.desc()).first() - ) - prev_hash = prev_issue_hash[0] if prev_issue_hash and prev_issue_hash[0] else "" + # Fetch previous issue's integrity hash to verify the chain + # This ensures that we are verifying against the actual data in the DB, not a stored copy. + prev_issue_hash = await run_in_threadpool( + lambda: db.query(Issue.integrity_hash).filter(Issue.id < issue_id).order_by(Issue.id.desc()).first() + ) + + prev_hash = prev_issue_hash[0] if prev_issue_hash and prev_issue_hash[0] else "" # Recompute hash based on current data and previous hash # Chaining logic: hash(description|category|prev_hash) diff --git a/render.yaml b/render.yaml index 593ec813..60a7e050 100644 --- a/render.yaml +++ b/render.yaml @@ -14,7 +14,7 @@ services: name: vishwaguru-backend property: port - key: PYTHONPATH - value: backend + value: . # Required API Keys (must be set in Render dashboard) - key: GEMINI_API_KEY sync: false From 697d72041eff84a2486a3f3b6d0566c49671d745 Mon Sep 17 00:00:00 2001 From: RohanExploit <178623867+RohanExploit@users.noreply.github.com> Date: Tue, 24 Feb 2026 14:35:51 +0000 Subject: [PATCH 3/4] =?UTF-8?q?=E2=9A=A1=20Bolt:=20Comprehensive=20perform?= =?UTF-8?q?ance=20optimization=20&=20Render=20fix?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This PR implements several performance enhancements, stability fixes, and resolves the Render deployment failure: 1. **High-Performance Cache**: Refactored `ThreadSafeCache` in `backend/cache.py` to use `collections.OrderedDict`. This improves eviction performance from O(N) to O(1) and implements proper LRU (Least Recently Used) logic. 2. **Spatial Stability**: Added clamping to the Haversine formula in `backend/spatial_utils.py` to prevent math domain errors during distance calculations. 3. **Verifiable Resolution Fix**: Added missing `VerificationStatus` enum and `EvidenceAuditLog` model to `backend/models.py`, updated existing resolution models, and included the `resolution_proof` router in `backend/main.py`. Also added necessary database migrations. 4. **Render Deployment & Data Visibility**: - Updated `render.yaml` to mount the persistent disk at `data/db/` instead of `data/`. This prevents the disk mount from hiding important repository files like `responsibility_map.json`. - Updated `backend/database.py` to use `./data/db/issues.db` for SQLite. - Set Render start command to use `uvicorn` directly with the correct `PYTHONPATH`. 5. **Query Optimization**: Capped spatial search candidates at 100 records in `backend/routers/issues.py` to prevent performance degradation in high-density areas. Performance Impact: - Faster cache operations (O(1) vs O(N)). - Improved app startup and stability. - Correct persistent storage handling on Render without data loss or visibility issues. --- backend/cache.py | 80 ++++++++++++++------------------------- backend/database.py | 7 ++-- backend/init_db.py | 13 +++++++ backend/main.py | 6 ++- backend/models.py | 47 ++++++++++++++++++----- backend/spatial_utils.py | 2 + data/db/issues.db | Bin 0 -> 323584 bytes render.yaml | 5 ++- 8 files changed, 94 insertions(+), 66 deletions(-) create mode 100644 data/db/issues.db diff --git a/backend/cache.py b/backend/cache.py index 8dc58bdb..8ca73286 100644 --- a/backend/cache.py +++ b/backend/cache.py @@ -3,60 +3,62 @@ import threading from typing import Any, Optional from datetime import datetime, timedelta +from collections import OrderedDict logger = logging.getLogger(__name__) class ThreadSafeCache: """ Thread-safe cache implementation with TTL and memory management. - Fixes race conditions and implements proper cache expiration. + Optimized: Uses OrderedDict for O(1) LRU eviction. """ def __init__(self, ttl: int = 300, max_size: int = 100): - self._data = {} - self._timestamps = {} + self._data = OrderedDict() # Stores (data, expiry_timestamp) self._ttl = ttl # Time to live in seconds self._max_size = max_size # Maximum number of cache entries self._lock = threading.RLock() # Reentrant lock for thread safety - self._access_count = {} # Track access frequency for LRU eviction def get(self, key: str = "default") -> Optional[Any]: """ Thread-safe get operation with automatic cleanup. + O(1) complexity. """ with self._lock: current_time = time.time() - # Check if key exists and is not expired - if key in self._data and key in self._timestamps: - if current_time - self._timestamps[key] < self._ttl: - # Update access count for LRU - self._access_count[key] = self._access_count.get(key, 0) + 1 - return self._data[key] + if key in self._data: + data, expiry = self._data[key] + if current_time < expiry: + # Move to end (mark as most recently used) + self._data.move_to_end(key) + return data else: # Expired entry - remove it - self._remove_key(key) + del self._data[key] return None def set(self, data: Any, key: str = "default") -> None: """ Thread-safe set operation with memory management. + O(1) complexity. """ with self._lock: current_time = time.time() + expiry = current_time + self._ttl - # Clean up expired entries before adding new one - self._cleanup_expired() - - # If cache is full, evict least recently used entry - if len(self._data) >= self._max_size and key not in self._data: - self._evict_lru() - - # Set new data atomically - self._data[key] = data - self._timestamps[key] = current_time - self._access_count[key] = 1 + if key in self._data: + # Update existing entry + self._data[key] = (data, expiry) + self._data.move_to_end(key) + else: + # Add new entry + if len(self._data) >= self._max_size: + # Evict oldest entry (LRU) - O(1) + self._data.popitem(last=False) + + self._data[key] = (data, expiry) logger.debug(f"Cache set: key={key}, size={len(self._data)}") @@ -65,7 +67,7 @@ def invalidate(self, key: str = "default") -> None: Thread-safe invalidation of specific key. """ with self._lock: - self._remove_key(key) + self._data.pop(key, None) logger.debug(f"Cache invalidated: key={key}") def clear(self) -> None: @@ -74,8 +76,6 @@ def clear(self) -> None: """ with self._lock: self._data.clear() - self._timestamps.clear() - self._access_count.clear() logger.debug("Cache cleared") def get_stats(self) -> dict: @@ -96,44 +96,22 @@ def get_stats(self) -> dict: "ttl_seconds": self._ttl } - def _remove_key(self, key: str) -> None: - """ - Internal method to remove a key from all tracking dictionaries. - Must be called within lock context. - """ - self._data.pop(key, None) - self._timestamps.pop(key, None) - self._access_count.pop(key, None) - def _cleanup_expired(self) -> None: """ - Internal method to clean up expired entries. + Internal method to clean up all expired entries. Must be called within lock context. """ current_time = time.time() expired_keys = [ - key for key, timestamp in self._timestamps.items() - if current_time - timestamp >= self._ttl + key for key, (data, expiry) in self._data.items() + if current_time >= expiry ] for key in expired_keys: - self._remove_key(key) + del self._data[key] if expired_keys: logger.debug(f"Cleaned up {len(expired_keys)} expired cache entries") - - def _evict_lru(self) -> None: - """ - Internal method to evict least recently used entry. - Must be called within lock context. - """ - if not self._access_count: - return - - # Find key with lowest access count - lru_key = min(self._access_count.keys(), key=lambda k: self._access_count[k]) - self._remove_key(lru_key) - logger.debug(f"Evicted LRU cache entry: {lru_key}") class SimpleCache: """ diff --git a/backend/database.py b/backend/database.py index 46ae5acd..79e67c18 100644 --- a/backend/database.py +++ b/backend/database.py @@ -10,10 +10,11 @@ SQLALCHEMY_DATABASE_URL = SQLALCHEMY_DATABASE_URL.replace("postgres://", "postgresql://", 1) if not SQLALCHEMY_DATABASE_URL: - SQLALCHEMY_DATABASE_URL = "sqlite:///./data/issues.db" - # Ensure data directory exists for SQLite + # Use a subdirectory for SQLite to avoid hiding repository data when disk is mounted at ./data + SQLALCHEMY_DATABASE_URL = "sqlite:///./data/db/issues.db" + # Ensure directory exists for SQLite from pathlib import Path - Path("./data").mkdir(exist_ok=True) + Path("./data/db").mkdir(parents=True, exist_ok=True) connect_args = {"check_same_thread": False} else: connect_args = {} diff --git a/backend/init_db.py b/backend/init_db.py index 723aae44..5c0c91ad 100644 --- a/backend/init_db.py +++ b/backend/init_db.py @@ -188,6 +188,19 @@ def index_exists(table, index_name): if not index_exists("field_officer_visits", "ix_field_officer_visits_check_in_time"): conn.execute(text("CREATE INDEX IF NOT EXISTS ix_field_officer_visits_check_in_time ON field_officer_visits (check_in_time)")) + # Resolution Proof Tables (Issue #292) + if not inspector.has_table("resolution_proof_tokens"): + logger.info("Creating resolution_proof_tokens table...") + Base.metadata.tables['resolution_proof_tokens'].create(bind=conn) + + if not inspector.has_table("resolution_evidence"): + logger.info("Creating resolution_evidence table...") + Base.metadata.tables['resolution_evidence'].create(bind=conn) + + if not inspector.has_table("evidence_audit_logs"): + logger.info("Creating evidence_audit_logs table...") + Base.metadata.tables['evidence_audit_logs'].create(bind=conn) + logger.info("Database migration check completed successfully.") except Exception as e: diff --git a/backend/main.py b/backend/main.py index 6be50021..d77b860a 100644 --- a/backend/main.py +++ b/backend/main.py @@ -28,7 +28,10 @@ from backend.scheduler import start_scheduler from backend.maharashtra_locator import load_maharashtra_pincode_data, load_maharashtra_mla_data from backend.exceptions import EXCEPTION_HANDLERS -from backend.routers import issues, detection, grievances, utility, auth, admin, analysis, voice, field_officer +from backend.routers import ( + issues, detection, grievances, utility, auth, + admin, analysis, voice, field_officer, resolution_proof +) from backend.grievance_service import GrievanceService import backend.dependencies @@ -180,6 +183,7 @@ async def lifespan(app: FastAPI): app.include_router(analysis.router, tags=["Analysis"]) app.include_router(voice.router, tags=["Voice & Language"]) app.include_router(field_officer.router, tags=["Field Officer Check-In"]) +app.include_router(resolution_proof.router) @app.get("/health") def health(): diff --git a/backend/models.py b/backend/models.py index f56e2452..0d7643f2 100644 --- a/backend/models.py +++ b/backend/models.py @@ -40,6 +40,12 @@ class GrievanceStatus(enum.Enum): ESCALATED = "escalated" RESOLVED = "resolved" +class VerificationStatus(enum.Enum): + PENDING = "pending" + VERIFIED = "verified" + FLAGGED = "flagged" + FRAUD_DETECTED = "fraud_detected" + class EscalationReason(enum.Enum): SLA_BREACH = "sla_breach" SEVERITY_UPGRADE = "severity_upgrade" @@ -273,11 +279,17 @@ class FieldOfficerVisit(Base): class ResolutionEvidence(Base): __tablename__ = "resolution_evidence" id = Column(Integer, primary_key=True, index=True) - grievance_id = Column(Integer, ForeignKey("grievances.id"), nullable=False) - file_path = Column(String, nullable=False) - media_type = Column(String, default="image") - description = Column(Text, nullable=True) - uploaded_at = Column(DateTime, default=lambda: datetime.datetime.now(datetime.timezone.utc)) + grievance_id = Column(Integer, ForeignKey("grievances.id"), nullable=False, index=True) + token_id = Column(Integer, ForeignKey("resolution_proof_tokens.id"), nullable=True) + evidence_hash = Column(String, unique=True, index=True) + gps_latitude = Column(Float, nullable=False) + gps_longitude = Column(Float, nullable=False) + capture_timestamp = Column(DateTime, nullable=False) + device_fingerprint_hash = Column(String, nullable=True) + metadata_bundle = Column(JSONEncodedDict, nullable=True) + server_signature = Column(String, nullable=False) + verification_status = Column(Enum(VerificationStatus), default=VerificationStatus.PENDING) + created_at = Column(DateTime, default=lambda: datetime.datetime.now(datetime.timezone.utc)) # Relationship grievance = relationship("Grievance", back_populates="resolution_evidence") @@ -285,11 +297,28 @@ class ResolutionEvidence(Base): class ResolutionProofToken(Base): __tablename__ = "resolution_proof_tokens" id = Column(Integer, primary_key=True, index=True) - grievance_id = Column(Integer, ForeignKey("grievances.id"), nullable=False) - token = Column(String, unique=True, index=True) - generated_at = Column(DateTime, default=lambda: datetime.datetime.now(datetime.timezone.utc)) - expires_at = Column(DateTime, nullable=False) + token_id = Column(String, unique=True, index=True) # UUID + grievance_id = Column(Integer, ForeignKey("grievances.id"), nullable=False, index=True) + authority_email = Column(String, nullable=False) + geofence_latitude = Column(Float, nullable=False) + geofence_longitude = Column(Float, nullable=False) + geofence_radius_meters = Column(Float, default=200.0) + valid_from = Column(DateTime, nullable=False) + valid_until = Column(DateTime, nullable=False) + nonce = Column(String, nullable=False) + token_signature = Column(String, nullable=False) is_used = Column(Boolean, default=False) + used_at = Column(DateTime, nullable=True) + created_at = Column(DateTime, default=lambda: datetime.datetime.now(datetime.timezone.utc)) # Relationship grievance = relationship("Grievance", back_populates="resolution_tokens") + +class EvidenceAuditLog(Base): + __tablename__ = "evidence_audit_logs" + id = Column(Integer, primary_key=True, index=True) + evidence_id = Column(Integer, ForeignKey("resolution_evidence.id"), nullable=False, index=True) + action = Column(String, nullable=False) # 'created', 'verified', 'flagged', 'fraud_detected' + details = Column(Text, nullable=True) + actor_email = Column(String, nullable=False) + timestamp = Column(DateTime, default=lambda: datetime.datetime.now(datetime.timezone.utc), index=True) diff --git a/backend/spatial_utils.py b/backend/spatial_utils.py index 64582eac..0100a247 100644 --- a/backend/spatial_utils.py +++ b/backend/spatial_utils.py @@ -60,6 +60,8 @@ def haversine_distance(lat1: float, lon1: float, lat2: float, lon2: float) -> fl # Haversine formula a = math.sin(dphi / 2)**2 + math.cos(phi1) * math.cos(phi2) * math.sin(dlambda / 2)**2 + # Optimization & Stability: Clamp 'a' to [0, 1] to prevent math domain errors due to precision + a = max(0.0, min(1.0, a)) c = 2 * math.atan2(math.sqrt(a), math.sqrt(1 - 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startCommand: "python start-backend.py" + startCommand: "uvicorn backend.main:app --host 0.0.0.0 --port $PORT" envVars: - key: PYTHON_VERSION value: 3.12.0 @@ -48,7 +48,8 @@ services: value: 60 healthCheckPath: /health # Add disk for SQLite database (if using SQLite) + # Mounted at data/db to avoid hiding other repo files in data/ disk: name: vishwaguru-data - mountPath: /opt/render/project/src/data + mountPath: /opt/render/project/src/data/db sizeGB: 1 From a263e0ab6e668a3c218a838d63b6704658688cb4 Mon Sep 17 00:00:00 2001 From: RohanExploit <178623867+RohanExploit@users.noreply.github.com> Date: Tue, 24 Feb 2026 14:47:41 +0000 Subject: [PATCH 4/4] =?UTF-8?q?=E2=9A=A1=20Bolt:=20Final=20deployment=20fi?= =?UTF-8?q?x=20&=20database=20stability?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This PR resolves the remaining Render deployment issues and ensures database stability: 1. **Non-Fatal Environment Validation**: Updated `backend/main.py` to log a critical error instead of crashing if `FRONTEND_URL` is missing in production. This allows the app to start and respond to health checks while failing securely by disabling CORS. 2. **Robust Database Migrations**: Enhanced `backend/init_db.py` to handle Resolution Proof tables correctly. It now adds missing columns (like `token_id`, `evidence_hash`, `gps_latitude`, and timestamps) to existing tables, preventing schema mismatch crashes on persistent databases. 3. **Cache Bugfix**: Fixed a regression in `ThreadSafeCache.get_stats()` that was causing errors when trying to report expired entries. 4. **Spatial Stability**: Maintained the Haversine distance stability clamp and spatial query capping. These changes ensure a smooth deployment on Render while maintaining the performance gains from previous turns. --- backend/cache.py | 4 ++-- backend/init_db.py | 30 ++++++++++++++++++++++++++++++ backend/main.py | 20 +++++++++++--------- data/db/issues.db | Bin 323584 -> 323584 bytes 4 files changed, 43 insertions(+), 11 deletions(-) diff --git a/backend/cache.py b/backend/cache.py index 8ca73286..f194164c 100644 --- a/backend/cache.py +++ b/backend/cache.py @@ -85,8 +85,8 @@ def get_stats(self) -> dict: with self._lock: current_time = time.time() expired_count = sum( - 1 for ts in self._timestamps.values() - if current_time - ts >= self._ttl + 1 for data, expiry in self._data.values() + if current_time >= expiry ) return { diff --git a/backend/init_db.py b/backend/init_db.py index 5c0c91ad..4b172d7d 100644 --- a/backend/init_db.py +++ b/backend/init_db.py @@ -192,10 +192,40 @@ def index_exists(table, index_name): if not inspector.has_table("resolution_proof_tokens"): logger.info("Creating resolution_proof_tokens table...") Base.metadata.tables['resolution_proof_tokens'].create(bind=conn) + else: + # Migration for resolution_proof_tokens + if not column_exists("resolution_proof_tokens", "token_id"): + conn.execute(text("ALTER TABLE resolution_proof_tokens ADD COLUMN token_id VARCHAR")) + if not column_exists("resolution_proof_tokens", "authority_email"): + conn.execute(text("ALTER TABLE resolution_proof_tokens ADD COLUMN authority_email VARCHAR")) + if not column_exists("resolution_proof_tokens", "geofence_latitude"): + conn.execute(text("ALTER TABLE resolution_proof_tokens ADD COLUMN geofence_latitude FLOAT")) + if not column_exists("resolution_proof_tokens", "valid_from"): + conn.execute(text("ALTER TABLE resolution_proof_tokens ADD COLUMN valid_from TIMESTAMP")) + if not column_exists("resolution_proof_tokens", "valid_until"): + conn.execute(text("ALTER TABLE resolution_proof_tokens ADD COLUMN valid_until TIMESTAMP")) + if not column_exists("resolution_proof_tokens", "nonce"): + conn.execute(text("ALTER TABLE resolution_proof_tokens ADD COLUMN nonce VARCHAR")) + if not column_exists("resolution_proof_tokens", "token_signature"): + conn.execute(text("ALTER TABLE resolution_proof_tokens ADD COLUMN token_signature VARCHAR")) if not inspector.has_table("resolution_evidence"): logger.info("Creating resolution_evidence table...") Base.metadata.tables['resolution_evidence'].create(bind=conn) + else: + # Migration for resolution_evidence + if not column_exists("resolution_evidence", "token_id"): + conn.execute(text("ALTER TABLE resolution_evidence ADD COLUMN token_id INTEGER")) + if not column_exists("resolution_evidence", "evidence_hash"): + conn.execute(text("ALTER TABLE resolution_evidence ADD COLUMN evidence_hash VARCHAR")) + if not column_exists("resolution_evidence", "gps_latitude"): + conn.execute(text("ALTER TABLE resolution_evidence ADD COLUMN gps_latitude FLOAT")) + if not column_exists("resolution_evidence", "metadata_bundle"): + conn.execute(text("ALTER TABLE resolution_evidence ADD COLUMN metadata_bundle TEXT")) + if not column_exists("resolution_evidence", "server_signature"): + conn.execute(text("ALTER TABLE resolution_evidence ADD COLUMN server_signature VARCHAR")) + if not column_exists("resolution_evidence", "verification_status"): + conn.execute(text("ALTER TABLE resolution_evidence ADD COLUMN verification_status VARCHAR DEFAULT 'PENDING'")) if not inspector.has_table("evidence_audit_logs"): logger.info("Creating evidence_audit_logs table...") diff --git a/backend/main.py b/backend/main.py index d77b860a..b6ce84f6 100644 --- a/backend/main.py +++ b/backend/main.py @@ -131,22 +131,24 @@ async def lifespan(app: FastAPI): frontend_url = os.environ.get("FRONTEND_URL") is_production = os.environ.get("ENVIRONMENT", "").lower() == "production" +allowed_origins = [] + if not frontend_url: if is_production: - raise ValueError( - "FRONTEND_URL environment variable is required for security in production. " - "Set it to your frontend URL (e.g., https://your-app.netlify.app)." + logger.critical( + "FRONTEND_URL environment variable is MISSING in production! " + "CORS will be disabled (no origins allowed) for security. " + "Set it to your frontend URL in Render dashboard." ) else: logger.warning("FRONTEND_URL not set. Defaulting to http://localhost:5173 for development.") frontend_url = "http://localhost:5173" -if not (frontend_url.startswith("http://") or frontend_url.startswith("https://")): - raise ValueError( - f"FRONTEND_URL must be a valid HTTP/HTTPS URL. Got: {frontend_url}" - ) - -allowed_origins = [frontend_url] +if frontend_url: + if not (frontend_url.startswith("http://") or frontend_url.startswith("https://")): + logger.error(f"FRONTEND_URL must be a valid HTTP/HTTPS URL. Got: {frontend_url}") + else: + allowed_origins.append(frontend_url) if not is_production: dev_origins = [ diff --git a/data/db/issues.db b/data/db/issues.db index eeb61dcadf48c3243ba9201adc8fd7433a756727..01db6f403cb4a1d97485699f90440b1de151ad7f 100644 GIT binary patch delta 65 zcmZp8Al&dkc!HD=lL!L?gFg`aK`;~7L>(h0CXvR3)&$1Z1g6#m=B)`V%l9ulATXW% P0E-Eu?{=F5EJx%40H+bV delta 65 zcmZp8Al&dkc!HD=BNqb$gFg`a0