|
| 1 | +// set up environment |
| 2 | +import * as dotenv from 'dotenv'; |
| 3 | +dotenv.config(); |
| 4 | + |
| 5 | +import { CveResult } from '../result/CveResult.js'; |
| 6 | +import { SearchResultData } from "./SearchResultData.js"; |
| 7 | +import { SearchProviderSpec } from '../adapters/search/SearchAdapter.js'; |
| 8 | +import { BasicSearchManager, SearchOptions } from "./BasicSearchManager.js" |
| 9 | + |
| 10 | +export class SearchAPIOptions extends SearchOptions { |
| 11 | + searchFields: Array<string>; |
| 12 | + filters: Array<object>; |
| 13 | + resultsPerPage: number; |
| 14 | + pageNumber: number; |
| 15 | + rangeObjects: Array<rangeObject> |
| 16 | + rangeStart: Date; |
| 17 | + rangeEnd: Date; |
| 18 | + rangeField: string; |
| 19 | +} |
| 20 | + |
| 21 | +//support for date ranges |
| 22 | +export class rangeObject { |
| 23 | + rangeField: string; |
| 24 | + rangeStart: Date; |
| 25 | + rangeEnd: Date; |
| 26 | +} |
| 27 | + |
| 28 | +export class AdvancedSearchManager extends BasicSearchManager { |
| 29 | + |
| 30 | + /** constructor that sets up provider information |
| 31 | + * @param searchProviderSpec optional specifications providing provider information |
| 32 | + * default is to read it from environment variables |
| 33 | + */ |
| 34 | + constructor(searchProviderSpec: SearchProviderSpec = undefined) { |
| 35 | + super(searchProviderSpec); |
| 36 | + } |
| 37 | + |
| 38 | + /** search for text at search provider |
| 39 | + * @param searchText the text string to search for |
| 40 | + * @param options options to specify how to search, with well-defined defaults |
| 41 | + * @param queryString query strings for each filter on the search request |
| 42 | + */ |
| 43 | + async apiSearch(searchText?: string, options?: Partial<SearchAPIOptions>, queryStrings?: Array<object>): Promise<CveResult> { |
| 44 | + let response = undefined; |
| 45 | + |
| 46 | + if (!options) { |
| 47 | + options = { |
| 48 | + useCache: true, |
| 49 | + searchFields: null, |
| 50 | + filters: null, |
| 51 | + resultsPerPage: 20, |
| 52 | + pageNumber: 0, |
| 53 | + rangeObjects: null, |
| 54 | + rangeStart: null, |
| 55 | + rangeEnd: null, |
| 56 | + rangeField: null, |
| 57 | + track_total_hits: true, |
| 58 | + default_operator: "AND", |
| 59 | + metadataOnly: false, |
| 60 | + fields: [] |
| 61 | + }; |
| 62 | + } |
| 63 | + |
| 64 | + const validateResult = this.validateSearchText(searchText, options.filters) |
| 65 | + |
| 66 | + //Build range object to add to the query |
| 67 | + const rangeArray = [...(options.rangeObjects ?? [])]; |
| 68 | + |
| 69 | + //Build query object |
| 70 | + const queryObj = { |
| 71 | + must: [], |
| 72 | + filter: [ |
| 73 | + ...options.filters |
| 74 | + ], |
| 75 | + }; |
| 76 | + |
| 77 | + //Add rangeObj only if it exists |
| 78 | + if (rangeArray) { |
| 79 | + queryObj.filter.push(...rangeArray); |
| 80 | + } |
| 81 | + |
| 82 | + if (searchText != null) { |
| 83 | + queryObj.must = [ |
| 84 | + { |
| 85 | + query_string: { |
| 86 | + query: searchText, |
| 87 | + fields: ["containers.cna.descriptions.value"] |
| 88 | + }, |
| 89 | + } |
| 90 | + ]; |
| 91 | + } |
| 92 | + |
| 93 | + //Add query_string only if there is text to search |
| 94 | + else if (queryStrings != null) { |
| 95 | + queryObj.must = [ |
| 96 | + ...queryStrings |
| 97 | + ]; |
| 98 | + } else { |
| 99 | + delete queryObj.must |
| 100 | + } |
| 101 | + |
| 102 | + if (validateResult.isOk()) { |
| 103 | + |
| 104 | + response = await this._searchReader._client.search({ |
| 105 | + index: this._searchReader._cveIndex, |
| 106 | + body: { |
| 107 | + query: { |
| 108 | + bool: queryObj |
| 109 | + |
| 110 | + }, |
| 111 | + track_total_hits: true, |
| 112 | + size: options.resultsPerPage, |
| 113 | + from: options.from |
| 114 | + } |
| 115 | + }); |
| 116 | + |
| 117 | + return CveResult.ok(response.body as SearchResultData); |
| 118 | + } |
| 119 | + else { |
| 120 | + return validateResult |
| 121 | + } |
| 122 | + } |
| 123 | + |
| 124 | + /** validates search text string and marks up CveResult |
| 125 | + * with errors and/or notes, if any |
| 126 | + */ |
| 127 | + // @todo |
| 128 | + validateSearchText(text: string, filters: Array<object>): CveResult { |
| 129 | + |
| 130 | + let result: CveResult |
| 131 | + if (!text && !filters) { |
| 132 | + result = CveResult.error(9002) |
| 133 | + } |
| 134 | + else { |
| 135 | + result = CveResult.ok("", ["no validation was done"]) |
| 136 | + } |
| 137 | + |
| 138 | + return result |
| 139 | + } |
| 140 | +} |
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