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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 | import { GetObjectCommand, S3Client } from '@aws-sdk/client-s3'; import { getSignedUrl } from '@aws-sdk/s3-request-presigner'; import { LambdaApiFunction, handleResourceApi } from './_base'; import { api401Body, api403Body, generateApi400Body } from '@/types/api/_shared'; import { FullTextObject, GetAllTextsApi, allowedFrontendTextFields, getAllTextsApiQueryValidator } from '@/types/api/texts'; import { TypedQueryInput } from '@/types/backend/dynamo'; import { TABLE_TEXT, typedQuery } from '@/utils/backend/dynamoTyped'; import { validateObject } from '@/utils/backend/validation'; import { getLogger } from '@/utils/common/logger'; const logger = getLogger('texts'); const s3 = new S3Client(); const cacheBucket = process.env.COSTS_BUCKET; const anyAdminTextTypes: FullTextObject['type'][] = [ 'page', 'transcript', 'pageAnnounce', ]; const GET: LambdaApiFunction<GetAllTextsApi> = async function (event, user, userPerms) { logger.debug('GET', ...arguments); // Validate the query const [ query, queryErrors, ] = validateObject<GetAllTextsApi['query']>( event.queryStringParameters || {}, getAllTextsApiQueryValidator ); if ( query === null || queryErrors.length > 0 ) { return [ 400, generateApi400Body(queryErrors), ]; } // Make sure either department or type is passed if ( typeof query.type === typeof query.department ) { return [ 400, generateApi400Body([ 'type', 'department', ]), ]; } // Authorize the user if (user === null) { return [ 401, api401Body, ]; } if (!userPerms.isAdmin) { return [ 403, api403Body, ]; } // Build the query input let queryInput: (TypedQueryInput<FullTextObject> & Required<Pick< TypedQueryInput<FullTextObject>, 'ExpressionAttributeNames' | 'ExpressionAttributeValues' >>) | null = null; if (typeof query.type !== 'undefined') { queryInput = { TableName: TABLE_TEXT, IndexName: 'typeIndex', ScanIndexForward: false, ExpressionAttributeNames: { '#type': 'type', }, ExpressionAttributeValues: { ':type': query.type, }, KeyConditionExpression: '#type = :type', Limit: 100, }; } else if (typeof query.department !== 'undefined') { queryInput = { TableName: TABLE_TEXT, IndexName: 'departmentIndex', ScanIndexForward: false, ExpressionAttributeNames: { '#department': 'department', }, ExpressionAttributeValues: { ':department': query.department, }, KeyConditionExpression: '#department = :department', Limit: 100, }; } if (queryInput === null) { throw new Error('Not enough info to make query'); } // Add the timing component if (typeof query.before !== 'undefined') { queryInput.ExpressionAttributeNames['#datetime'] = 'datetime'; queryInput.ExpressionAttributeValues[':datetime'] = query.before; queryInput.KeyConditionExpression += ' AND #datetime < :datetime'; } // Run the query const result = await typedQuery<FullTextObject>(queryInput); // Filter out the texts the current user should not see const data = (result.Items || []) .filter(text => { // Don't show texts that include auth codes if (text.type === 'account') { return false; } // Don't show texts that aren't sent to anyone if ( text.recipients === 0 && query.all !== 'y' ) { return false; } // Show all remaining texts to the district admin if (user.isDistrictAdmin) { return true; } // Show certain types of texts to any admin if (anyAdminTextTypes.includes(text.type)) { return true; } // Don't show texts that aren't associated with a specific department if (typeof text.department === 'undefined') { return false; } // Don't show texts that are affiliated with a department the user is not a member of return userPerms.adminDepartments.includes(text.department); }) .map(text => { (Object.keys(text) as (keyof typeof text)[]) .filter(key => !allowedFrontendTextFields.includes(key)) .forEach(key => delete text[key]); return text; }); // Fill in the signed S3 urls for media as needed const signedUrlPromises: Promise<{ textIdx: number; idx: number; url: string; }>[] = []; data.forEach((text, textIdx) => { if ( !text.mediaUrls || !Array.isArray(text.mediaUrls) || !text.mediaUrls.some(u => u.startsWith('textMedia')) ) { return; } text.mediaUrls.forEach((url, idx) => { if (!url.startsWith('textMedia')) { return; } signedUrlPromises.push((async () => ({ textIdx, idx, url: await getSignedUrl(s3, new GetObjectCommand({ Bucket: cacheBucket, Key: url, })), }))()); }); }); (await Promise.all(signedUrlPromises)) .forEach(result => { data[result.textIdx].mediaUrls = Array.isArray(data[result.textIdx].mediaUrls) ? data[result.textIdx].mediaUrls : []; (data[result.textIdx].mediaUrls as string[])[result.idx] = result.url; }); // Build the response return [ 200, { count: data.length, scanned: result.ScannedCount || 0, texts: data, }, ]; }; export const main = handleResourceApi.bind(null, { GET, }); |