|
| 1 | +from rest_framework import serializers |
| 2 | +from rest_framework import viewsets |
| 3 | +from rest_framework.response import Response |
| 4 | +from rest_framework.reverse import reverse |
| 5 | + |
| 6 | +from vulnerabilities.models import Package |
| 7 | +from vulnerabilities.models import Vulnerability |
| 8 | +from vulnerabilities.models import VulnerabilityReference |
| 9 | +from vulnerabilities.models import Weakness |
| 10 | +from vulnerabilities.models import VulnerabilitySeverity |
| 11 | + |
| 12 | +from vulnerabilities.api import VulnerabilitySeveritySerializer |
| 13 | + |
| 14 | +class WeaknessV2Serializer(serializers.ModelSerializer): |
| 15 | + cwe_id = serializers.CharField() |
| 16 | + name = serializers.CharField() |
| 17 | + description = serializers.CharField() |
| 18 | + |
| 19 | + class Meta: |
| 20 | + model = Weakness |
| 21 | + fields = ["cwe_id", "name", "description"] |
| 22 | + |
| 23 | + |
| 24 | +class VulnerabilityReferenceV2Serializer(serializers.ModelSerializer): |
| 25 | + url = serializers.CharField() |
| 26 | + reference_type = serializers.CharField() |
| 27 | + reference_id = serializers.CharField() |
| 28 | + |
| 29 | + class Meta: |
| 30 | + model = VulnerabilityReference |
| 31 | + fields = ["url", "reference_type", "reference_id"] |
| 32 | + |
| 33 | + |
| 34 | +class VulnerabilityV2Serializer(serializers.ModelSerializer): |
| 35 | + aliases = serializers.SerializerMethodField() |
| 36 | + weaknesses = WeaknessV2Serializer(many=True) |
| 37 | + references = VulnerabilityReferenceV2Serializer(many=True, source="vulnerabilityreference_set") |
| 38 | + severities = VulnerabilitySeveritySerializer(many=True) |
| 39 | + |
| 40 | + class Meta: |
| 41 | + model = Vulnerability |
| 42 | + fields = [ |
| 43 | + "vulnerability_id", |
| 44 | + "aliases", |
| 45 | + "summary", |
| 46 | + "severities", |
| 47 | + "weaknesses", |
| 48 | + "references", |
| 49 | + ] |
| 50 | + |
| 51 | + def get_aliases(self, obj): |
| 52 | + return [alias.alias for alias in obj.aliases.all()] |
| 53 | + |
| 54 | + def get_severities(self, obj): |
| 55 | + return obj.severities |
| 56 | + |
| 57 | + |
| 58 | +class VulnerabilityListSerializer(serializers.ModelSerializer): |
| 59 | + url = serializers.SerializerMethodField() |
| 60 | + |
| 61 | + class Meta: |
| 62 | + model = Vulnerability |
| 63 | + fields = ["vulnerability_id", "url"] |
| 64 | + |
| 65 | + def get_url(self, obj): |
| 66 | + request = self.context.get("request") |
| 67 | + return reverse( |
| 68 | + "vulnerability-v2-detail", |
| 69 | + kwargs={"vulnerability_id": obj.vulnerability_id}, |
| 70 | + request=request, |
| 71 | + ) |
| 72 | + |
| 73 | + |
| 74 | +class VulnerabilityV2ViewSet(viewsets.ReadOnlyModelViewSet): |
| 75 | + queryset = Vulnerability.objects.all() |
| 76 | + serializer_class = VulnerabilityV2Serializer |
| 77 | + lookup_field = "vulnerability_id" |
| 78 | + |
| 79 | + def get_queryset(self): |
| 80 | + queryset = super().get_queryset() |
| 81 | + vulnerability_ids = self.request.query_params.getlist("vulnerability_id") |
| 82 | + aliases = self.request.query_params.getlist("alias") |
| 83 | + |
| 84 | + if vulnerability_ids: |
| 85 | + queryset = queryset.filter(vulnerability_id__in=vulnerability_ids) |
| 86 | + |
| 87 | + if aliases: |
| 88 | + queryset = queryset.filter(aliases__alias__in=aliases).distinct() |
| 89 | + |
| 90 | + return queryset |
| 91 | + |
| 92 | + def get_serializer_class(self): |
| 93 | + if self.action == "list": |
| 94 | + return VulnerabilityListSerializer |
| 95 | + return super().get_serializer_class() |
| 96 | + |
| 97 | + def list(self, request, *args, **kwargs): |
| 98 | + queryset = self.get_queryset() |
| 99 | + vulnerability_ids = request.query_params.getlist("vulnerability_id") |
| 100 | + |
| 101 | + # If exactly one vulnerability_id is provided, return the serialized data |
| 102 | + if len(vulnerability_ids) == 1: |
| 103 | + try: |
| 104 | + vulnerability = queryset.get(vulnerability_id=vulnerability_ids[0]) |
| 105 | + serializer = self.get_serializer(vulnerability) |
| 106 | + return Response(serializer.data) |
| 107 | + except Vulnerability.DoesNotExist: |
| 108 | + return Response({"detail": "Not found."}, status=404) |
| 109 | + |
| 110 | + # Otherwise, return a dictionary of vulnerabilities keyed by vulnerability_id |
| 111 | + page = self.paginate_queryset(queryset) |
| 112 | + if page is not None: |
| 113 | + serializer = self.get_serializer(page, many=True) |
| 114 | + data = serializer.data |
| 115 | + vulnerabilities = {item["vulnerability_id"]: item for item in data} |
| 116 | + return self.get_paginated_response({"vulnerabilities": vulnerabilities}) |
| 117 | + |
| 118 | + serializer = self.get_serializer(queryset, many=True) |
| 119 | + data = serializer.data |
| 120 | + vulnerabilities = {item["vulnerability_id"]: item for item in data} |
| 121 | + return Response({"vulnerabilities": vulnerabilities}) |
| 122 | + |
| 123 | + |
| 124 | +class PackageV2Serializer(serializers.ModelSerializer): |
| 125 | + purl = serializers.CharField(source="package_url") |
| 126 | + affected_by_vulnerabilities = serializers.SerializerMethodField() |
| 127 | + fixing_vulnerabilities = serializers.SerializerMethodField() |
| 128 | + next_non_vulnerable_version = serializers.CharField(read_only=True) |
| 129 | + latest_non_vulnerable_version = serializers.CharField(read_only=True) |
| 130 | + |
| 131 | + class Meta: |
| 132 | + model = Package |
| 133 | + fields = [ |
| 134 | + "purl", |
| 135 | + "affected_by_vulnerabilities", |
| 136 | + "fixing_vulnerabilities", |
| 137 | + "next_non_vulnerable_version", |
| 138 | + "latest_non_vulnerable_version", |
| 139 | + ] |
| 140 | + |
| 141 | + def get_affected_by_vulnerabilities(self, obj): |
| 142 | + return [vuln.vulnerability_id for vuln in obj.affected_by_vulnerabilities.all()] |
| 143 | + |
| 144 | + def get_fixing_vulnerabilities(self, obj): |
| 145 | + return [vuln.vulnerability_id for vuln in obj.fixing_vulnerabilities.all()] |
| 146 | + |
| 147 | + |
| 148 | +class PackageV2ViewSet(viewsets.ReadOnlyModelViewSet): |
| 149 | + queryset = Package.objects.all() |
| 150 | + serializer_class = PackageV2Serializer |
| 151 | + |
| 152 | + def get_queryset(self): |
| 153 | + queryset = super().get_queryset() |
| 154 | + package_purls = self.request.query_params.getlist("purl") |
| 155 | + affected_by_vulnerability = self.request.query_params.get("affected_by_vulnerability") |
| 156 | + fixing_vulnerability = self.request.query_params.get("fixing_vulnerability") |
| 157 | + |
| 158 | + if package_purls: |
| 159 | + queryset = queryset.filter(package_url__in=package_purls) |
| 160 | + if affected_by_vulnerability: |
| 161 | + queryset = queryset.filter( |
| 162 | + affected_by_vulnerabilities__vulnerability_id=affected_by_vulnerability |
| 163 | + ) |
| 164 | + if fixing_vulnerability: |
| 165 | + queryset = queryset.filter( |
| 166 | + fixing_vulnerabilities__vulnerability_id=fixing_vulnerability |
| 167 | + ) |
| 168 | + return queryset.with_is_vulnerable() |
| 169 | + |
| 170 | + def list(self, request, *args, **kwargs): |
| 171 | + queryset = self.get_queryset() |
| 172 | + # Apply pagination |
| 173 | + page = self.paginate_queryset(queryset) |
| 174 | + if page is not None: |
| 175 | + serializer = self.get_serializer(page, many=True) |
| 176 | + data = serializer.data |
| 177 | + # Use 'self.get_paginated_response' to include pagination data |
| 178 | + return self.get_paginated_response({"purls": data}) |
| 179 | + |
| 180 | + # If pagination is not applied |
| 181 | + serializer = self.get_serializer(queryset, many=True) |
| 182 | + data = serializer.data |
| 183 | + return Response({"purls": data}) |
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