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# # from Crypto.Hash import SHA256
# # from Crypto.Signature import pss
# # # ----------------------------
# # # 1. Generate RSA Key Pair
# # # ----------------------------
# # def generate_rsa_keys(bits=2048):
# # key = RSA.generate(bits)
# # private_key = key.export_key()
# # public_key = key.publickey().export_key()
# # return private_key, public_key
# # # ----------------------------
# # # 2. Save Keys to Files
# # # ----------------------------
# # def save_key(key_data, filename):
# # with open(filename, "wb") as f:
# # f.write(key_data)
# # # ----------------------------
# # # 3. Load Private Key
# # # ----------------------------
# # def load_private_key(filename="private.pem"):
# # with open(filename, "rb") as f:
# # return RSA.import_key(f.read())
# # # ----------------------------
# # # 4. Load Public Key
# # # ----------------------------
# # def load_public_key(filename="public.pem"):
# # with open(filename, "rb") as f:
# # return RSA.import_key(f.read())
# # # ----------------------------
# # # 5. Sign Message (RSA-PSS)
# # # ----------------------------
# # def sign_message(message, private_key):
# # if isinstance(message, str):
# # message = message.encode("utf-8")
# # hash_obj = SHA256.new(message)
# # signature = pss.new(private_key).sign(hash_obj)
# # return signature
# # # ----------------------------
# # # 6. Verify Signature
# # # ----------------------------
# # def verify_signature(message, signature, public_key):
# # if isinstance(message, str):
# # message = message.encode("utf-8")
# # hash_obj = SHA256.new(message)
# # try:
# # pss.new(public_key).verify(hash_obj, signature)
# # return True
# # except (ValueError, TypeError):
# # return False
# # # ----------------------------
# # # 7. Example Usage
# # # ----------------------------
# # if __name__ == "__main__":
# # # Generate keys
# # private_key, public_key = generate_rsa_keys()
# # # Save keys
# # save_key(private_key, "private.pem")
# # save_key(public_key, "public.pem")
# # # Load keys
# # priv = load_private_key("private.pem")
# # pub = load_public_key("public.pem")
# # # Message
# # msg = "This is a legal RAG secure request"
# # # Sign
# # signature = sign_message(msg, priv)
# # print("Signature generated:", signature.hex())
# # # Verify
# # is_valid = verify_signature(msg, signature, pub)
# # print("Signature valid?", is_valid)
# import requests
# import os
# from dotenv import load_dotenv
# load_dotenv()
# API_TOKEN = os.getenv("kanoon_token")
# BASE_URL = "https://api.indiankanoon.org/search/"
# def search(query):
# headers = {
# "Authorization": f"Token {API_TOKEN}",
# "Content-Type": "application/x-www-form-urlencoded"
# }
# data = {
# "formInput": query
# }
# response = requests.post(BASE_URL, headers=headers, data=data)
# print("STATUS:", response.status_code)
# print("RESPONSE:", response.text)
# try:
# return response.json()
# except:
# return response.text
# print(search('"fundamental rights"'))
# from neo4j import GraphDatabase
# driver = GraphDatabase.driver(
# "bolt://localhost:7687",
# auth=("neo4j", "test12345")
# )
# with driver.session() as session:
# query = """
# MATCH (a:Article {number: 14})
# RETURN a.text AS content
# """
# result = session.run(query)
# print(result.single())
# driver.close()
# from embeddings_generator import LegalEmbedder
# from vector_db import QdrantIngestor
# question = "what does article 14 of the indian constitution say?"
# # Create embedding
# embedder = LegalEmbedder(model_name="all-MiniLM-L6-v2")
# embedding = embedder.embed_texts(question)
# # Search Qdrant
# qdrant = QdrantIngestor()
# hits = qdrant.search(
# # collection_name="legal_constitution",
# query_vector=embedding.tolist()[0],
# limit=5
# )
# # article_ids = [hit.payload["article_id"] for hit in hits]
# print("Top matching article IDs:", hits)
# # # Fetch from Neo4j
# # query = """
# # MATCH (a:Article)
# # WHERE a.article_id IN $ids
# # RETURN a.article_id, a.text
# # """
# # result = session.run(query, ids=article_ids)
# # for row in result:
# # print(row["a.text"])
# from parser import ConstitutionParser
# from record_generator import ConstitutionRecordGenerator
# with open("text_extracted_ocr_output.txt", "r", encoding="utf8") as f:
# text = f.read()
# parser = ConstitutionParser()
# parts = parser.parse(text)
# generator = ConstitutionRecordGenerator()
# records = generator.generate(parts)
# print("Total Records:", len(records))
# print(records[0])
from __future__ import annotations
from db.neo4j_store import Neo4jStore
class BNSGraphBuilder:
DOCUMENT_ID = "BNS"
def __init__(self, store: Neo4jStore):
self.store = store
# =====================================================
# NODE FACTORY
# =====================================================
def _props(self, node_id: str, node_type: str, **kwargs):
return {
"id": node_id,
"document": "BNS",
"node_type": node_type,
**kwargs
}
# =====================================================
# BUILD ENTRY
# =====================================================
def build(self, bns):
self._create_document()
if getattr(bns, "parts", []):
self._build_parts(bns)
else:
self._build_chapters(bns.chapters, self.DOCUMENT_ID)
# =====================================================
# DOCUMENT
# =====================================================
def _create_document(self):
self.store.merge_node(
label="Document",
node_id=self.DOCUMENT_ID,
properties=self._props(
self.DOCUMENT_ID,
"Document",
name="Bharatiya Nyaya Sanhita, 2023"
)
)
# =====================================================
# PARTS
# =====================================================
def _build_parts(self, bns):
for part in bns.parts:
part_id = f"BNS-PART-{part.part_no}"
self.store.merge_node(
label="Part",
node_id=part_id,
properties=self._props(
part_id,
"Part",
part_no=part.part_no,
title=part.title,
text=part.text
)
)
# Document → Part
self.store.merge_relationship(
self.DOCUMENT_ID,
part_id,
"HAS_PART"
)
self._build_chapters(part.chapters, part_id)
# =====================================================
# CHAPTERS
# =====================================================
def _build_chapters(self, chapters, parent_id):
for chapter in chapters:
chapter_id = f"BNS-CH-{chapter.chapter_no}"
self.store.merge_node(
label="Chapter",
node_id=chapter_id,
properties=self._props(
chapter_id,
"Chapter",
chapter_no=chapter.chapter_no,
title=chapter.chapter_title,
text=chapter.text
)
)
# Parent → Child (IMPORTANT for retrieval)
self.store.merge_relationship(
parent_id,
chapter_id,
"HAS_CHAPTER"
)
self._build_sections(chapter.sections, chapter_id)
# =====================================================
# SECTIONS
# =====================================================
def _build_sections(self, sections, chapter_id):
for section in sections:
section_id = f"BNS-{section.section_no}"
self.store.merge_node(
label="Section",
node_id=section_id,
properties=self._props(
section_id,
"Section",
section_no=section.section_no,
title=section.section_title,
text=section.text
)
)
# Parent → Child (CRITICAL FIX)
self.store.merge_relationship(
chapter_id,
section_id,
"HAS_SECTION"
)
# Optional reverse link (useful for normalization)
self.store.merge_relationship(
section_id,
chapter_id,
"BELONGS_TO"
)
self._build_clauses(section, section_id)
self._build_explanations(section, section_id)
self._build_illustrations(section, section_id)
self._build_references(section, section_id)
# =====================================================
# CLAUSES
# =====================================================
def _build_clauses(self, section, section_id):
for clause in getattr(section, "clauses", []):
clause_id = f"{section_id}({clause.clause_no})"
self.store.merge_node(
label="Clause",
node_id=clause_id,
properties=self._props(
clause_id,
"Clause",
clause_no=clause.clause_no,
text=clause.text
)
)
self.store.merge_relationship(
section_id,
clause_id,
"HAS_CLAUSE"
)
self.store.merge_relationship(
clause_id,
section_id,
"BELONGS_TO"
)
self._build_subclauses(clause, clause_id)
# =====================================================
# SUBCLAUSES
# =====================================================
def _build_subclauses(self, clause, clause_id):
for sub in getattr(clause, "sub_clauses", []):
sub_id = f"{clause_id}({sub.sub_clause_no})"
self.store.merge_node(
label="SubClause",
node_id=sub_id,
properties=self._props(
sub_id,
"SubClause",
sub_clause_no=sub.sub_clause_no,
text=sub.text
)
)
self.store.merge_relationship(
clause_id,
sub_id,
"HAS_SUBCLAUSE"
)
self.store.merge_relationship(
sub_id,
clause_id,
"BELONGS_TO"
)
self._build_roman_clauses(sub, sub_id)
# =====================================================
# ROMAN CLAUSES
# =====================================================
def _build_roman_clauses(self, sub, sub_id):
for roman in getattr(sub, "roman_clauses", []):
roman_id = f"{sub_id}({roman.roman_no})"
self.store.merge_node(
label="RomanClause",
node_id=roman_id,
properties=self._props(
roman_id,
"RomanClause",
roman_no=roman.roman_no,
text=roman.text
)
)
self.store.merge_relationship(
sub_id,
roman_id,
"HAS_ROMANCLAUSE"
)
self.store.merge_relationship(
roman_id,
sub_id,
"BELONGS_TO"
)
# =====================================================
# EXPLANATIONS
# =====================================================
def _build_explanations(self, section, section_id):
for idx, explanation in enumerate(
getattr(section, "explanations", []),
start=1
):
explanation_id = f"{section_id}-EXPL-{idx}"
self.store.merge_node(
label="Explanation",
node_id=explanation_id,
properties=self._props(
explanation_id,
"Explanation",
text=explanation.text
)
)
self.store.merge_relationship(
section_id,
explanation_id,
"HAS_EXPLANATION"
)
self.store.merge_relationship(
explanation_id,
section_id,
"BELONGS_TO"
)
# =====================================================
# ILLUSTRATIONS
# =====================================================
def _build_illustrations(self, section, section_id):
for idx, illustration in enumerate(
getattr(section, "illustrations", []),
start=1
):
illustration_id = f"{section_id}-ILL-{idx}"
self.store.merge_node(
label="Illustration",
node_id=illustration_id,
properties=self._props(
illustration_id,
"Illustration",
illustration_no=getattr(illustration, "illustration_no", None),
text=illustration.text
)
)
self.store.merge_relationship(
section_id,
illustration_id,
"HAS_ILLUSTRATION"
)
self.store.merge_relationship(
illustration_id,
section_id,
"BELONGS_TO"
)
# =====================================================
# REFERENCES
# =====================================================
def _build_references(self, section, section_id):
for ref in getattr(section, "references", []):
target_section = getattr(ref, "section_no", None)
if not target_section:
continue
target_id = f"BNS-{target_section}"
self.store.merge_relationship(
section_id,
target_id,
"REFERENCES"
) |