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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 21022x 21022x 21022x 21022x 1x 10520x 10520x 10520x 10520x 10520x 10520x 10520x 10520x 10520x 10520x 10520x 31334x 31334x 31334x 31334x 31334x 31334x 31334x 31334x 10520x 10520x 9979x 9979x 10520x 10520x 269x 269x 269x 269x 10520x 10520x 251x 251x 10520x 10520x 391x 20x 391x 2x 2x 369x 369x 391x 12x 12x 357x 357x 357x 357x 391x 25x 25x 332x 332x 332x 391x 698x 698x 332x 332x 332x 10520x 10520x 1796x 1796x 1796x 277x 277x 1519x 1796x 596x 6x 6x 6x 6x 3x 3x 6x 6x 6x 6x 6x 6x 596x 590x 1089x 1089x 590x 1796x 923x 59x 923x 59x 864x 14x 14x 14x 1x 1x 805x 14x 791x 14x 14x 14x 14x 13x 14x 1x 1x 1x 1x 14x 14x 777x 1x 763x 762x 762x 923x 1796x 1796x 10520x 10520x 10520x 10520x 16x 7x 7x 7x 16x 10520x 10520x 762x 762x 762x 762x 762x 494x 494x 494x 494x 7x 7x 2x 2x 7x 494x 762x 10520x 10520x 6x 6x 4x 4x 4x 4x 4x 4x 6x 10520x 10520x 59x 59x 59x 59x 59x 59x 59x 59x 59x 59x 59x 59x 59x 59x 59x 59x 59x 10520x 10520x 34x 1x 1x 33x 33x 34x 34x 33x 33x 34x 34x 2x 2x 31x 31x 34x 34x 34x 10520x 10520x 269x 269x 269x 448x 291x 291x 448x 448x 48x 48x 109x 448x 448x 269x 10520x 10520x 357x 357x 357x 374x 253x 18x 18x 253x 374x 357x 10520x 10520x | import {Issue} from "../issue"; import {ABAPRule} from "./_abap_rule"; import {BasicRuleConfig} from "./_basic_rule_config"; import * as Statements from "../abap/2_statements/statements"; import * as Expressions from "../abap/2_statements/expressions"; import * as Structures from "../abap/3_structures/structures"; import {IRuleMetadata, RuleTag} from "./_irule"; import {ABAPFile} from "../abap/abap_file"; import {StatementNode, StructureNode} from "../abap/nodes"; import {IRegistry} from "../_iregistry"; import {Class, Program} from "../objects"; import {DDIC} from "../ddic"; import {SyntaxLogic} from "../abap/5_syntax/syntax"; import {ABAPObject} from "../objects/_abap_object"; import {ISyntaxResult} from "../abap/5_syntax/_spaghetti_scope"; import {ReferenceType} from "../abap/5_syntax/_reference"; import {MethodDefinition} from "../abap/types"; export class UncaughtExceptionConf extends BasicRuleConfig { public reportDynamic = false; public reportNoCheck = false; } export class UncaughtException extends ABAPRule { private conf = new UncaughtExceptionConf(); private globalExceptions: {[index: string]: string | undefined}; private localExceptions: {[index: string]: string | undefined}; private issues: Issue[] = []; private sinked: string[] | undefined; private syntax: ISyntaxResult; public getMetadata(): IRuleMetadata { return { key: "uncaught_exception", title: "Uncaught Exception", shortDescription: `Checks for uncaught static exception`, extendedInformation: `Does not report any issues if the code contains syntax errors`, tags: [RuleTag.Syntax], }; } public getConfig() { return this.conf; } public initialize(reg: IRegistry) { super.initialize(reg); this.findGlobalExceptions(); return this; } public setConfig(conf: UncaughtExceptionConf) { this.conf = conf; } public runParsed(file: ABAPFile, obj: ABAPObject) { if (obj.getType() === "INTF") { // nothing can be raised in interfaces return []; } if (obj instanceof Program && obj.isInclude() === true) { return []; } const stru = file.getStructure(); if (stru === undefined) { return []; } this.findLocalExceptions(obj); this.syntax = new SyntaxLogic(this.reg, obj).run(); if (this.syntax.issues.length > 0) { return []; } this.issues = []; this.sinked = undefined; for (const c of stru.getChildren()) { this.traverse(c, file); } return this.issues; } private traverse(n: StructureNode | StatementNode, file: ABAPFile) { const get = n.get(); if (get instanceof Structures.ClassDefinition || get instanceof Structures.Interface) { return; // to optimize performance } if (n instanceof StructureNode) { if (get instanceof Structures.Try) { // note that TRY-CATCH might be arbitrarily nested const previous = this.sinked ? this.sinked.slice() : undefined; this.addFromTryStructure(n); for (const c of n.findDirectStructure(Structures.Body)?.getChildren() || []) { this.traverse(c, file); } this.sinked = previous; for (const c of n.findDirectStructure(Structures.Catch)?.getChildren() || []) { this.traverse(c, file); } for (const c of n.findDirectStructure(Structures.Cleanup)?.getChildren() || []) { this.traverse(c, file); } return; } else { for (const c of n.getChildren()) { this.traverse(c, file); } } } else if (n instanceof StatementNode) { if (get instanceof Statements.MethodImplementation) { this.setSinkedFromMethod(n, file); } else if (get instanceof Statements.EndMethod) { this.sinked = undefined; // back to top level } else if (get instanceof Statements.Form) { this.sinked = []; const raising = n.findDirectExpression(Expressions.FormRaising); for (const c of raising?.findAllExpressions(Expressions.ClassName) || []) { this.sinked.push(c.concatTokens().toUpperCase()); } } else if (get instanceof Statements.EndForm) { this.sinked = undefined; // back to top level } else if (get instanceof Statements.Raise) { let name: string | undefined = undefined; const concat = n.concatTokens().toUpperCase(); if (concat.startsWith("RAISE EXCEPTION TYPE ")) { name = n.findFirstExpression(Expressions.ClassName)?.getFirstToken().getStr().toUpperCase(); } else if (concat.startsWith("RAISE EXCEPTION NEW ")) { name = n.findFirstExpression(Expressions.NewObject)?.findFirstExpression( Expressions.TypeNameOrInfer)?.getFirstToken().getStr().toUpperCase(); // todo: else its a normal Source, infer the type from it } this.check(name, n, file); } else if (get instanceof Statements.Perform) { // todo, PERFORM, or is this not statically checked? } else { this.checkForMethodCalls(n, file); } } } //////////////////////////////// private check(name: string | undefined, n: StatementNode, file: ABAPFile) { if (this.isSinked(name) === false) { const issue = Issue.atStatement(file, n, "Uncaught exception " + name, this.getMetadata().key, this.getConfig().severity); this.issues.push(issue); } } private checkForMethodCalls(n: StatementNode, file: ABAPFile) { const start = n.getFirstToken().getStart(); const end = n.getLastToken().getEnd(); const scope = this.syntax.spaghetti.lookupPosition(start, file.getFilename()); for (const r of scope?.getData().references || []) { if (r.referenceType === ReferenceType.MethodReference && r.position.getStart().isAfter(start) && r.position.getEnd().isBefore(end) && r.resolved instanceof MethodDefinition) { for (const name of r.resolved.getRaising()) { this.check(name, n, file); } } } } private addFromTryStructure(s: StructureNode) { if (this.sinked === undefined) { return; } for (const structure of s.findDirectStructures(Structures.Catch)) { const c = structure.findDirectStatement(Statements.Catch); if (c === undefined) { continue; } for (const cn of c.findDirectExpressions(Expressions.ClassName)) { this.sinked.push(cn.concatTokens()); } } } private setSinkedFromMethod(s: StatementNode, file: ABAPFile) { this.sinked = []; const scope = this.syntax.spaghetti.lookupPosition(s.getLastToken().getEnd(), file.getFilename()); let def: MethodDefinition | undefined = undefined; for (const r of scope?.getData().references || []) { // there should be only one, so the first is okay if (r.referenceType === ReferenceType.MethodImplementationReference && r.resolved instanceof MethodDefinition) { def = r.resolved; break; } } if (def === undefined) { return; // this should not occur, so just report everything as errors } def.getRaising().forEach(r => this.sinked?.push(r)); } private isSinked(name: string | undefined): boolean { if (this.sinked === undefined || name === undefined) { return true; } const sup = this.globalExceptions[name.toUpperCase()]; if (sup === "CX_DYNAMIC_CHECK" && this.getConfig().reportDynamic !== true) { return true; } if (sup === "CX_NO_CHECK" && this.getConfig().reportNoCheck !== true) { return true; } const lsup = this.localExceptions[name.toUpperCase()]; if (lsup === "CX_DYNAMIC_CHECK" && this.getConfig().reportDynamic !== true) { return true; } if (lsup === "CX_NO_CHECK" && this.getConfig().reportNoCheck !== true) { return true; } return this.sinked.some(a => a.toUpperCase() === name.toUpperCase()) || ( sup !== undefined && this.isSinked(sup) === true ) || ( lsup !== undefined && this.isSinked(lsup) === true ); } private findGlobalExceptions() { this.globalExceptions = {}; const ddic = new DDIC(this.reg); for (const o of this.reg.getObjects()) { if (!(o instanceof Class)) { continue; } const def = o.getMainABAPFile()?.getInfo().getClassDefinitionByName(o.getName()); if (def === undefined || ddic.isException(def, o) === false) { continue; } this.globalExceptions[o.getName().toUpperCase()] = def.superClassName?.toUpperCase(); } } private findLocalExceptions(obj: ABAPObject) { this.localExceptions = {}; for (const file of obj.getABAPFiles()) { for (const def of file.getInfo().listClassDefinitions()) { if (def.isLocal === true && def.superClassName !== undefined) { this.localExceptions[def.name.toUpperCase()] = def.superClassName?.toUpperCase(); } } } } } |