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ThreatLens/utils/enricher.py
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SINS d96e326d4d Initial ThreatLens release
2026-06-27 21:24:57 -04:00

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"""
utils/enricher.py — Markdown artifact enrichment.
Scans a markdown report for security-relevant artifacts (CVEs, IPv4 addresses,
hostnames, emails, GitHub repos / commits, raw URLs, vendor product names) and:
1. Rewrites each occurrence inline as a clickable markdown link pointing at
the most useful primary lookup (NVD for CVEs, Shodan for IPs, github.com
for repos, etc.).
2. Appends an "INTEL APPENDIX" section grouping every unique artifact with
the FULL set of enrichment links (Shodan + Censys + VirusTotal for IPs,
NVD + GitHub PoC search + exploit-db + nuclei templates for CVEs, etc.).
Code fences, existing markdown links and inline code spans are preserved
unmodified so the original report stays readable.
Public API:
enrich_markdown(text: str) -> tuple[str, Stats]
"""
from __future__ import annotations
import ipaddress
import re
from dataclasses import dataclass, field
from typing import Callable
from urllib.parse import quote, quote_plus
# ──────────────────────────────────────────────────────────────────────────
# Regex patterns
# ──────────────────────────────────────────────────────────────────────────
# CVE: CVE-YYYY-NNNN(N+) — case insensitive, normalised to uppercase.
CVE_RE = re.compile(r"\bCVE-\d{4}-\d{4,7}\b", re.IGNORECASE)
# IPv4 with optional CIDR; we filter private/invalid in post-processing.
IPV4_RE = re.compile(
r"\b(?:25[0-5]|2[0-4]\d|[01]?\d\d?)"
r"(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d\d?)){3}"
r"(?:/\d{1,2})?\b"
)
# Emails — RFC-ish, good enough for report text.
EMAIL_RE = re.compile(r"\b[\w.+-]+@[\w-]+\.[\w.-]{2,}\b")
# Raw http(s) URLs — used both for "wrap as link" and for hostname extraction.
URL_RE = re.compile(r"https?://[^\s<>()\[\]\"']+", re.IGNORECASE)
# GitHub repo refs like org/repo, optionally followed by @sha or #commit-sha.
# Restrictive: 1st segment 1-39 chars (GitHub login limit), 2nd 1-100 chars,
# both must contain at least one letter to avoid matching numeric paths.
GH_REPO_RE = re.compile(
r"(?<![\w/])"
r"([A-Za-z0-9](?:[A-Za-z0-9-]{0,38}))"
r"/"
r"([A-Za-z0-9_][A-Za-z0-9_.-]{0,99})"
r"(?:[@#]([0-9a-f]{7,40}))?"
r"(?![\w/])"
)
# Bare hostnames (FQDNs not part of a URL). We extract from the full text but
# skip ones already inside URLs to avoid double-linking.
HOSTNAME_RE = re.compile(
r"(?<![\w/@.-])"
r"(?:[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?\.){1,}"
r"(?:[a-z]{2,24})"
r"(?![\w-])",
re.IGNORECASE,
)
# Git commit SHA (7-40 hex). Only enriched when paired with a known repo.
SHA_RE = re.compile(r"\b([0-9a-f]{7,40})\b")
# Code fence / inline code stripper — protects these regions from rewriting.
FENCED_BLOCK_RE = re.compile(r"```.*?```", re.DOTALL)
INLINE_CODE_RE = re.compile(r"`[^`\n]+`")
EXISTING_LINK_RE = re.compile(r"\[[^\]]+\]\([^)]+\)")
MD_TABLE_DIVIDER_RE = re.compile(r"^\s*\|?\s*:?-{3,}", re.MULTILINE)
# Vendors / products → vendor pages. Map of regex → (display, url).
# Keys are matched case-insensitively as whole "words" (word boundaries).
VENDORS: dict[str, tuple[str, str]] = {
r"Blackboard Learn": (
"Blackboard Learn",
"https://help.blackboard.com/Learn",
),
r"OmniUpdate(?: CMS)?|Modern Campus CMS|OU Campus": (
"Modern Campus CMS (OmniUpdate)",
"https://moderncampus.com/cms/",
),
r"Apache TomEE": (
"Apache TomEE",
"https://tomee.apache.org/security/",
),
r"Sitefinity": (
"Progress Sitefinity",
"https://www.progress.com/sitefinity-cms",
),
r"Anthology Engage(?:CMS)?": (
"Anthology Engage",
"https://www.anthology.com/products/engagement/engage",
),
r"PeopleSoft": (
"Oracle PeopleSoft",
"https://www.oracle.com/applications/peoplesoft/",
),
r"CourseLeaf": (
"CourseLeaf (Leepfrog)",
"https://courseleaf.com/",
),
r"\bInfor\b": (
"Infor",
"https://www.infor.com/",
),
r"Kaltura": (
"Kaltura",
"https://corp.kaltura.com/",
),
r"TeamDynamix": (
"TeamDynamix",
"https://www.teamdynamix.com/",
),
r"FortiGuard": (
"FortiGuard Labs",
"https://www.fortiguard.com/",
),
r"Cisco SCCP|Cisco SIP|Skinny Call Control Protocol": (
"Cisco SCCP/SIP",
"https://www.cisco.com/c/en/us/products/unified-communications/index.html",
),
r"New Relic": (
"New Relic",
"https://newrelic.com/",
),
r"Supabase": (
"Supabase",
"https://supabase.com/docs",
),
r"Vercel": (
"Vercel",
"https://vercel.com/",
),
r"ProtonMail": (
"Proton Mail",
"https://proton.me/mail",
),
}
# Pre-compile vendor regex (case-insensitive, word boundaries where sensible).
_VENDOR_PATTERNS: list[tuple[re.Pattern[str], str, str]] = [
(re.compile(rf"\b(?:{pat})\b", re.IGNORECASE), disp, url)
for pat, (disp, url) in VENDORS.items()
]
# ──────────────────────────────────────────────────────────────────────────
# Enrichment link factories
# ──────────────────────────────────────────────────────────────────────────
def cve_links(cve: str) -> list[tuple[str, str]]:
"""Return (label, url) tuples for a CVE id."""
q = quote_plus(cve)
return [
("NVD", f"https://nvd.nist.gov/vuln/detail/{cve}"),
("MITRE", f"https://cve.mitre.org/cgi-bin/cvename.cgi?name={cve}"),
("GitHub Advisory", f"https://github.com/advisories?query={q}"),
("GitHub PoC search", f"https://github.com/search?q={q}&type=repositories"),
("exploit-db", f"https://www.exploit-db.com/search?cve={cve.removeprefix('CVE-')}"),
("Nuclei templates", f"https://github.com/projectdiscovery/nuclei-templates/search?q={q}"),
("trickest/cve", f"https://github.com/trickest/cve/tree/main/{cve.split('-')[1]}"),
("Vulncheck", f"https://vulncheck.com/browse/cve/{cve}"),
]
def ipv4_links(ip: str) -> list[tuple[str, str]]:
"""Return (label, url) tuples for an IPv4 address (no CIDR suffix)."""
return [
("Shodan", f"https://www.shodan.io/host/{ip}"),
("Censys", f"https://search.censys.io/hosts/{ip}"),
("VirusTotal", f"https://www.virustotal.com/gui/ip-address/{ip}"),
("GreyNoise", f"https://viz.greynoise.io/ip/{ip}"),
("AbuseIPDB", f"https://www.abuseipdb.com/check/{ip}"),
("ipinfo.io", f"https://ipinfo.io/{ip}"),
]
def hostname_links(host: str) -> list[tuple[str, str]]:
"""Return (label, url) tuples for a hostname / FQDN."""
host_q = quote(host)
return [
("Open", f"https://{host}"),
("crt.sh", f"https://crt.sh/?q=%25.{host_q}"),
("urlscan.io", f"https://urlscan.io/domain/{host_q}"),
("Shodan", f"https://www.shodan.io/search?query=hostname%3A{host_q}"),
("VirusTotal", f"https://www.virustotal.com/gui/domain/{host_q}"),
("SecurityTrails", f"https://securitytrails.com/domain/{host_q}/dns"),
("Wayback", f"https://web.archive.org/web/*/{host_q}/*"),
]
def email_links(email: str) -> list[tuple[str, str]]:
"""Return (label, url) tuples for an email address."""
local, _, domain = email.partition("@")
return [
("mailto", f"mailto:{email}"),
("HIBP", f"https://haveibeenpwned.com/account/{quote(email)}"),
("Hunter (domain)", f"https://hunter.io/search/{quote(domain)}"),
("Epieos", f"https://epieos.com/?q={quote(email)}"),
]
def github_links(org: str, repo: str, sha: str | None) -> list[tuple[str, str]]:
"""Return (label, url) tuples for a GitHub repo, optionally at a commit."""
base = f"https://github.com/{org}/{repo}"
out = [
("Repo", base),
("Commits", f"{base}/commits"),
("Issues", f"{base}/issues"),
("Secret scan (TruffleHog)", "https://github.com/trufflesecurity/trufflehog"),
("GH advisories", f"https://github.com/{org}/{repo}/security/advisories"),
]
if sha:
out.insert(1, (f"Commit {sha[:7]}", f"{base}/commit/{sha}"))
return out
# ──────────────────────────────────────────────────────────────────────────
# Stats container
# ──────────────────────────────────────────────────────────────────────────
@dataclass
class Stats:
"""Counts + unique artifact sets for the enrichment appendix."""
cves: set[str] = field(default_factory=set)
ipv4s: set[str] = field(default_factory=set)
cidrs: set[str] = field(default_factory=set)
hostnames: set[str] = field(default_factory=set)
emails: set[str] = field(default_factory=set)
repos: set[tuple[str, str]] = field(default_factory=set) # (org, repo)
commits: set[tuple[str, str, str]] = field(default_factory=set) # (org, repo, sha)
urls: set[str] = field(default_factory=set)
vendors: set[str] = field(default_factory=set)
def total(self) -> int:
return (
len(self.cves) + len(self.ipv4s) + len(self.cidrs) + len(self.hostnames)
+ len(self.emails) + len(self.repos) + len(self.commits) + len(self.urls)
+ len(self.vendors)
)
def as_summary(self) -> dict[str, int]:
return {
"CVEs": len(self.cves),
"IPv4s": len(self.ipv4s),
"CIDRs": len(self.cidrs),
"Hostnames": len(self.hostnames),
"Emails": len(self.emails),
"GitHub repos": len(self.repos),
"Git commits": len(self.commits),
"URLs": len(self.urls),
"Vendors": len(self.vendors),
}
# ──────────────────────────────────────────────────────────────────────────
# Protect/restore code spans + existing links
# ──────────────────────────────────────────────────────────────────────────
_PLACEHOLDER = "\x00ENRICH{}\x00"
def _stash(text: str, stats: Stats) -> tuple[str, list[str]]:
"""Replace code fences / inline code / existing links with placeholders.
Returns (modified_text, stash) where placeholders look like \\x00ENRICH<i>\\x00
so the rewrite passes won't touch them.
Inline backticks (`x`) get *special* handling: if `x` is a single, clean
artifact (CVE, IP, IPv4/CIDR, email, FQDN, org/repo, URL), the WHOLE
backtick span is replaced with `[\`x\`](url)` so the artifact is clickable
while still rendering as code. Otherwise the span is stashed unchanged.
"""
stash: list[str] = []
def stash_repl(m: re.Match[str]) -> str:
stash.append(m.group(0))
return _PLACEHOLDER.format(len(stash) - 1)
def inline_code_repl(m: re.Match[str]) -> str:
raw = m.group(0) # e.g. "`devcolor/codebenders-datathon`"
inner = raw[1:-1].strip() # strip the backticks
link = _single_artifact_link(inner, stats)
if link is None:
# Plain code — keep the original span out of further passes.
stash.append(raw)
return _PLACEHOLDER.format(len(stash) - 1)
# Replace with a markdown link wrapping the code, then stash the
# whole thing so subsequent passes don't try to re-match the inner.
replacement = f"[{raw}]({link})"
stash.append(replacement)
return _PLACEHOLDER.format(len(stash) - 1)
text = FENCED_BLOCK_RE.sub(stash_repl, text)
text = INLINE_CODE_RE.sub(inline_code_repl, text)
text = EXISTING_LINK_RE.sub(stash_repl, text)
return text, stash
def _single_artifact_link(content: str, stats: Stats) -> str | None:
"""If `content` is exactly one recognisable artifact, return its primary
enrichment URL and update stats. Otherwise return None.
"""
s = content.strip()
if not s:
return None
# CVE
if CVE_RE.fullmatch(s):
cve = s.upper()
stats.cves.add(cve)
return f"https://nvd.nist.gov/vuln/detail/{cve}"
# URL
if URL_RE.fullmatch(s):
url = s.rstrip(".,;:)")
stats.urls.add(url)
host_match = re.match(r"https?://([^/:]+)", url, re.IGNORECASE)
if host_match and _looks_like_hostname(host_match.group(1).lower()):
stats.hostnames.add(host_match.group(1).lower())
return url
# Email
if EMAIL_RE.fullmatch(s):
stats.emails.add(s)
return f"mailto:{s}"
# GitHub org/repo (optionally @sha) — full-string match is strong signal
# that the user intended it as a repo ref.
gh = GH_REPO_RE.fullmatch(s)
if gh:
org, repo, sha = gh.group(1), gh.group(2), gh.group(3)
if _looks_like_repo(org, repo) and "." not in org:
stats.repos.add((org, repo))
base = f"https://github.com/{org}/{repo}"
if sha:
stats.commits.add((org, repo, sha))
return f"{base}/commit/{sha}"
return base
# IPv4 (with optional CIDR)
if IPV4_RE.fullmatch(s):
ip, _, cidr = s.partition("/")
if cidr:
stats.cidrs.add(s)
return f"https://www.shodan.io/search?query=net%3A{quote(s)}"
if _is_public_ipv4(ip):
stats.ipv4s.add(ip)
return f"https://www.shodan.io/host/{ip}"
return None
# Hostname
if HOSTNAME_RE.fullmatch(s) and _looks_like_hostname(s):
host = s.lower()
stats.hostnames.add(host)
return f"https://{host}"
return None
def _restore(text: str, stash: list[str]) -> str:
for i, original in enumerate(stash):
text = text.replace(_PLACEHOLDER.format(i), original)
return text
# ──────────────────────────────────────────────────────────────────────────
# Hostname filtering — skip noisy false positives
# ──────────────────────────────────────────────────────────────────────────
_HOST_SKIP_TLDS = {
# Common file extensions that look like TLDs in our regex.
"md", "txt", "log", "csv", "json", "yml", "yaml", "ini", "cfg",
"py", "js", "ts", "go", "rs", "java", "html", "css", "xml", "sh",
"ps1", "bat", "exe", "dll", "so", "dylib", "png", "jpg", "jpeg",
"gif", "svg", "pdf", "zip", "tar", "gz", "rar", "7z", "iso",
"bak", "old", "tmp", "swp", "db", "sql",
# Common code/JS identifiers mis-detected as TLDs.
"redirect", "then", "catch", "call", "apply", "bind",
"prototype", "constructor", "length", "value", "name",
}
_REPO_SKIP_SUFFIXES = (
".py", ".js", ".ts", ".java", ".rb", ".go", ".rs", ".c", ".cpp",
".h", ".hpp", ".cs", ".php", ".html", ".css", ".json", ".yml",
".yaml", ".xml", ".sh", ".md", ".txt", ".log", ".sql", ".bak",
)
# Recognised gTLDs / common ccTLDs. Anything outside this set OR a 2-letter
# all-alpha ccTLD gets rejected as not-a-real-hostname (catches JS method
# names like jquery.parseHtml, internal aliases like kctcsfin.ps, etc.).
_KNOWN_TLDS = {
# gTLDs
"com", "net", "org", "edu", "gov", "mil", "int", "info", "biz",
"name", "pro", "mobi", "aero", "coop", "museum",
# Modern / brand
"io", "co", "dev", "app", "ai", "cloud", "tech", "xyz", "online",
"site", "store", "shop", "blog", "page", "wiki", "news", "today",
"news", "live", "world", "group", "club", "fun", "studio", "design",
"art", "video", "tv", "fm", "gg", "ly", "sh", "me", "to", "vc",
"cc", "ws", "asia", "jobs", "travel", "post", "tel", "cat",
# Software / infra
"software", "services", "agency", "network", "social", "life",
"academy", "consulting", "solutions", "systems", "support", "ventures",
"finance", "money", "security", "wtf",
}
def _looks_like_hostname(host: str) -> bool:
"""Heuristic: must look like a real internet hostname, not a code
identifier (`jquery.parseHtml`) or internal alias (`kctcsfin.ps`).
"""
host = host.strip(".")
if "." not in host:
return False
parts = host.split(".")
if any(p == "" for p in parts):
return False
tld = parts[-1].lower()
if tld in _HOST_SKIP_TLDS:
return False
if not tld.isalpha():
return False
# TLD must be either a known gTLD/brand OR a 2-letter all-letter ccTLD.
if not (tld in _KNOWN_TLDS or len(tld) == 2):
return False
# Reject if any segment has internal mixed case (camelCase identifier).
for seg in parts:
if re.search(r"[a-z][A-Z]", seg):
return False
return True
def _looks_like_repo(org: str, repo: str) -> bool:
"""Heuristic for GH org/repo refs (used by both inline and backtick passes)."""
if not (re.search(r"[A-Za-z]", org) and re.search(r"[A-Za-z]", repo)):
return False
if org.isdigit() or repo.isdigit():
return False
rl = repo.lower()
if any(rl.endswith(suf) for suf in _REPO_SKIP_SUFFIXES):
return False
return True
def _is_public_ipv4(ip: str) -> bool:
"""True if the IP is globally routable (skip RFC1918, loopback, etc.)."""
try:
addr = ipaddress.IPv4Address(ip)
except (ipaddress.AddressValueError, ValueError):
return False
return not (addr.is_private or addr.is_loopback or addr.is_link_local
or addr.is_multicast or addr.is_unspecified or addr.is_reserved)
# ──────────────────────────────────────────────────────────────────────────
# Inline rewrite passes
# ──────────────────────────────────────────────────────────────────────────
def _rewrite_cves(text: str, stats: Stats) -> str:
def repl(m: re.Match[str]) -> str:
cve = m.group(0).upper()
stats.cves.add(cve)
return f"[{cve}](https://nvd.nist.gov/vuln/detail/{cve})"
return CVE_RE.sub(repl, text)
def _rewrite_ipv4s(text: str, stats: Stats) -> str:
def repl(m: re.Match[str]) -> str:
raw = m.group(0)
ip, _, cidr = raw.partition("/")
if cidr:
stats.cidrs.add(raw)
# Link CIDR to Shodan net: query.
return f"[{raw}](https://www.shodan.io/search?query=net%3A{quote(raw)})"
if not _is_public_ipv4(ip):
return raw
stats.ipv4s.add(ip)
return f"[{ip}](https://www.shodan.io/host/{ip})"
return IPV4_RE.sub(repl, text)
def _rewrite_emails(text: str, stats: Stats) -> str:
def repl(m: re.Match[str]) -> str:
email = m.group(0)
stats.emails.add(email)
return f"[{email}](mailto:{email})"
return EMAIL_RE.sub(repl, text)
def _rewrite_urls(text: str, stats: Stats) -> str:
def repl(m: re.Match[str]) -> str:
url = m.group(0).rstrip(".,;:)")
trailing = m.group(0)[len(url):]
stats.urls.add(url)
# Extract hostname for the appendix too.
host_match = re.match(r"https?://([^/:]+)", url, re.IGNORECASE)
if host_match:
host = host_match.group(1).lower()
if _looks_like_hostname(host):
stats.hostnames.add(host)
return f"[{url}]({url}){trailing}"
return URL_RE.sub(repl, text)
def _rewrite_hostnames(text: str, stats: Stats) -> str:
def repl(m: re.Match[str]) -> str:
host = m.group(0).lower()
if not _looks_like_hostname(host):
return m.group(0)
stats.hostnames.add(host)
return f"[{host}](https://{host})"
return HOSTNAME_RE.sub(repl, text)
def _rewrite_github(text: str, stats: Stats) -> str:
"""Rewrite `org/repo` and `org/repo@sha` refs as GitHub links.
`org/repo` is an extremely ambiguous shape ("voice/data", "OWA/Exchange",
"443/tcp", "Dev/test"). To avoid false positives we require ALL of:
- both segments contain at least one letter
- neither segment is a known protocol/port-style stopword
- both segments contain a hyphen (a strong GitHub-style convention), AND
- a context word (github / git history / repo / commit) appears within
80 chars before the match.
Single-hyphen / no-hyphen refs that are genuine repos (e.g. `shadcn/ui` or
`devcolor/codebenders-datathon`) are expected to appear in backticks in
the source; those are already handled by the inline-code pass in _stash().
"""
org_skip = {"http", "https", "ftp", "mailto", "tcp", "udp", "icmp"}
def repl(m: re.Match[str]) -> str:
org, repo, sha = m.group(1), m.group(2), m.group(3)
if org.lower() in org_skip or repo.lower() in org_skip:
return m.group(0)
if not _looks_like_repo(org, repo):
return m.group(0)
if not ("-" in org and "-" in repo):
return m.group(0)
start = m.start()
window = text[max(0, start - 80):start].lower()
if not re.search(r"github|git history|\bgit \b|\brepo\b|\bcommit\b", window):
return m.group(0)
stats.repos.add((org, repo))
base = f"https://github.com/{org}/{repo}"
if sha:
stats.commits.add((org, repo, sha))
return f"[{org}/{repo}@{sha[:7]}]({base}/commit/{sha})"
return f"[{org}/{repo}]({base})"
return GH_REPO_RE.sub(repl, text)
def _rewrite_vendors(text: str, stats: Stats) -> str:
"""Wrap vendor/product mentions with their docs link (first occurrence only).
To avoid noisy repetition, we only link the FIRST hit per vendor in the
document; subsequent occurrences stay plain text.
"""
seen: set[str] = set()
for pat, display, url in _VENDOR_PATTERNS:
if display in seen:
continue
# Only the first occurrence: use sub with count=1 and skip if already done.
def repl(m: re.Match[str], _disp=display, _url=url) -> str:
stats.vendors.add(_disp)
seen.add(_disp)
return f"[{m.group(0)}]({_url})"
text, n = pat.subn(repl, text, count=1)
if n:
seen.add(display)
return text
# ──────────────────────────────────────────────────────────────────────────
# Appendix builder
# ──────────────────────────────────────────────────────────────────────────
def _link_orphan_commits(text: str, stats: Stats) -> str:
"""After other passes have run, find lines that contain a GitHub repo
link plus one or more unlinked backticked SHAs, and link those SHAs to
that repo's commit URL.
Matches both `[\`abc1234\`]` (already wrapped via single-artifact pass that
failed because no repo context) and a bare ` `abc1234` ` code span.
"""
repo_link_re = re.compile(r"https?://github\.com/([\w.-]+)/([\w.-]+?)(?:[)/#?]|$)")
sha_code_re = re.compile(r"`([0-9a-f]{7,40})`")
out_lines: list[str] = []
for line in text.splitlines(keepends=True):
m = repo_link_re.search(line)
if not m:
out_lines.append(line)
continue
org, repo = m.group(1), m.group(2)
def repl(sm: re.Match[str], _org=org, _repo=repo) -> str:
sha = sm.group(1)
stats.commits.add((_org, _repo, sha))
return f"[`{sha}`](https://github.com/{_org}/{_repo}/commit/{sha})"
out_lines.append(sha_code_re.sub(repl, line))
return "".join(out_lines)
def _format_link_row(label: str, links: list[tuple[str, str]]) -> str:
bits = " · ".join(f"[{name}]({url})" for name, url in links)
return f"- **{label}** — {bits}"
def _build_appendix(stats: Stats) -> str:
if stats.total() == 0:
return ""
lines: list[str] = []
lines.append("\n---\n")
lines.append("## INTEL APPENDIX — Artifact Enrichment\n")
lines.append(
"_Auto-generated by VulnForge enricher. Each artifact below is paired with "
"external recon / threat-intel lookups for rapid pivot._\n"
)
if stats.cves:
lines.append("### CVEs\n")
for cve in sorted(stats.cves):
lines.append(_format_link_row(cve, cve_links(cve)))
lines.append("")
if stats.ipv4s:
lines.append("### IPv4 Hosts\n")
for ip in sorted(stats.ipv4s, key=lambda x: tuple(int(p) for p in x.split("."))):
lines.append(_format_link_row(ip, ipv4_links(ip)))
lines.append("")
if stats.cidrs:
lines.append("### IPv4 Ranges (CIDR)\n")
for cidr in sorted(stats.cidrs):
net_q = quote(cidr)
links = [
("Shodan net:", f"https://www.shodan.io/search?query=net%3A{net_q}"),
("Censys", f"https://search.censys.io/search?resource=hosts&q=ip%3A%5B{quote(cidr.split('/')[0])}%2F{cidr.split('/')[1]}%5D"),
("BGP.tools", f"https://bgp.tools/prefix/{net_q}"),
]
lines.append(_format_link_row(cidr, links))
lines.append("")
if stats.hostnames:
lines.append("### Hostnames / Domains\n")
for host in sorted(stats.hostnames):
lines.append(_format_link_row(host, hostname_links(host)))
lines.append("")
if stats.emails:
lines.append("### Emails\n")
for email in sorted(stats.emails):
lines.append(_format_link_row(email, email_links(email)))
lines.append("")
if stats.repos or stats.commits:
lines.append("### Source Code (GitHub)\n")
# First emit repos; commits get their own bullet under the parent repo.
repo_commits: dict[tuple[str, str], list[str]] = {}
for org, repo, sha in stats.commits:
repo_commits.setdefault((org, repo), []).append(sha)
for org, repo in sorted(stats.repos):
lines.append(_format_link_row(f"{org}/{repo}", github_links(org, repo, None)))
for sha in sorted(repo_commits.get((org, repo), [])):
commit_url = f"https://github.com/{org}/{repo}/commit/{sha}"
lines.append(f" - commit [`{sha[:12]}`]({commit_url})")
# Orphan commits (commit seen but repo wasn't matched) — rare.
for (org, repo), shas in repo_commits.items():
if (org, repo) not in stats.repos:
lines.append(_format_link_row(f"{org}/{repo}", github_links(org, repo, None)))
for sha in sorted(shas):
commit_url = f"https://github.com/{org}/{repo}/commit/{sha}"
lines.append(f" - commit [`{sha[:12]}`]({commit_url})")
lines.append("")
if stats.vendors:
lines.append("### Vendors / Products\n")
for vendor in sorted(stats.vendors):
# Find the URL we used for this vendor.
for pat, disp, url in _VENDOR_PATTERNS:
if disp == vendor:
lines.append(f"- **{vendor}** — [docs]({url})")
break
lines.append("")
return "\n".join(lines)
# ──────────────────────────────────────────────────────────────────────────
# Public entrypoint
# ──────────────────────────────────────────────────────────────────────────
def enrich_markdown(text: str) -> tuple[str, Stats]:
"""Rewrite artifacts inline and append an INTEL APPENDIX.
Code fences, inline code, and existing markdown links are preserved.
Returns the new text and a Stats object describing what was found.
"""
stats = Stats()
body, stash = _stash(text, stats)
# Order matters: URLs before hostnames (URL pass also collects hostnames
# from its URL strings into stats so they appear in the appendix). CVEs
# before any other text replacement so the "CVE-..." literal becomes the
# link text. GitHub repo pass before hostnames so "org/repo" isn't eaten.
passes: list[Callable[[str, Stats], str]] = [
_rewrite_urls,
_rewrite_cves,
_rewrite_emails,
_rewrite_github,
_rewrite_ipv4s,
_rewrite_hostnames,
_rewrite_vendors,
]
for fn in passes:
body = fn(body, stats)
body = _restore(body, stash)
# Post-pass: any backticked commit SHA on a line that also contains a
# github.com/<org>/<repo> link gets rewritten to that commit URL.
body = _link_orphan_commits(body, stats)
appendix = _build_appendix(stats)
return body + appendix, stats
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