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Simplify Sieve Parser and added RFC5235

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djmaze 2021-01-14 23:42:46 +01:00
parent 22964f1fde
commit d9865e3a46
11 changed files with 308 additions and 92 deletions
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66
dev/Sieve/Parser.js
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@ -6,6 +6,8 @@
const
RegEx = Sieve.RegEx,
Grammar = Sieve.Grammar,
Commands = Sieve.Commands,
T_UNKNOWN = 0,
T_STRING_LIST = 1,
@ -80,43 +82,35 @@ Sieve.parseScript = script => {
case T_IDENTIFIER: {
pushArgs();
value = value.toLowerCase();
let new_command,
className = value[0].toUpperCase() + value.substring(1);
let new_command;
if ('if' === value) {
new_command = new Sieve.Commands.Conditional(value);
new_command = new Commands.conditional(value);
} else if ('elsif' === value || 'else' === value) {
// (prev_command instanceof Sieve.Commands.Conditional) || error('Not after IF condition');
new_command = new Sieve.Commands.Conditional(value);
} else if ('allof' === value || 'anyof' === value) {
(command instanceof Sieve.Commands.Conditional) || error('Test-list not in conditional');
new_command = new Sieve.Tests[className]();
} else if (Sieve.Tests[className]) {
// address / envelope / exists / header / not / size
new_command = new Sieve.Tests[className]();
} else if (Sieve.Commands[className]) {
// discard / fileinto / keep / redirect / require / stop
new_command = new Sieve.Commands[className]();
} else if (Sieve.Extensions[className]) {
// body / ereject / reject / imap4flags / vacation
new_command = new Sieve.Extensions[className]();
// (prev_command instanceof Commands.conditional) || error('Not after IF condition');
new_command = new Commands.conditional(value);
} else if (Commands[value]) {
if ('allof' === value || 'anyof' === value) {
(command instanceof Commands.conditional) || error('Test-list not in conditional');
}
new_command = new Commands[value]();
} else {
console.error('Unknown command: ' + value);
if (command && (
command instanceof Sieve.Commands.Conditional
|| command instanceof Sieve.Tests.Not
|| command.tests instanceof Sieve.Grammar.TestList)) {
new_command = new Sieve.Grammar.Test(value);
command instanceof Commands.conditional
|| command instanceof Commands.not
|| command.tests instanceof Grammar.TestList)) {
new_command = new Grammar.Test(value);
} else {
new_command = new Sieve.Grammar.Command(value);
new_command = new Grammar.Command(value);
}
}
if (new_command instanceof Sieve.Grammar.Test) {
if (command instanceof Sieve.Commands.Conditional || command instanceof Sieve.Tests.Not) {
if (new_command instanceof Grammar.Test) {
if (command instanceof Commands.conditional || command instanceof Commands.not) {
// if/elsif/else new_command
// not new_command
command.test = new_command;
} else if (command.tests instanceof Sieve.Grammar.TestList) {
} else if (command.tests instanceof Grammar.TestList) {
// allof/anyof .tests[] new_command
command.tests.push(new_command);
} else {
@ -144,35 +138,35 @@ Sieve.parseScript = script => {
break;
case T_STRING_LIST:
command
? args.push(Sieve.Grammar.StringList.fromString(value))
? args.push(Grammar.StringList.fromString(value))
: error('String list must be command argument');
break;
case T_MULTILINE_STRING:
command
? args.push(new Sieve.Grammar.MultiLine(value))
? args.push(new Grammar.MultiLine(value))
: error('Multi-line string must be command argument');
break;
case T_QUOTED_STRING:
command
? args.push(new Sieve.Grammar.QuotedString(value.substr(1,value.length-2)))
? args.push(new Grammar.QuotedString(value.substr(1,value.length-2)))
: error('Quoted string must be command argument');
break;
case T_NUMBER:
command
? args.push(new Sieve.Grammar.Number(value))
? args.push(new Grammar.Number(value))
: error('Number must be command argument');
break;
// Comments
case T_BRACKET_COMMENT:
(command ? command.commands : tree).push(
new Sieve.Grammar.BracketComment(value.substr(2, value.length-4))
new Grammar.BracketComment(value.substr(2, value.length-4))
);
break;
case T_HASH_COMMENT:
(command ? command.commands : tree).push(
new Sieve.Grammar.HashComment(value.substr(1).trim())
new Grammar.HashComment(value.substr(1).trim())
);
break;
@ -194,14 +188,14 @@ Sieve.parseScript = script => {
pushArgs();
// https://tools.ietf.org/html/rfc5228#section-2.9
// Action commands do not take tests or blocks
while (command && !(command instanceof Sieve.Commands.Conditional)) {
while (command && !(command instanceof Commands.conditional)) {
levels.pop();
command = levels.last();
}
command || error('Block start not part of control command');
break;
case T_BLOCK_END:
(command instanceof Sieve.Commands.Conditional) || error('Block end has no matching block start');
(command instanceof Commands.conditional) || error('Block end has no matching block start');
levels.pop();
// prev_command = command;
command = levels.last();
@ -210,7 +204,7 @@ Sieve.parseScript = script => {
// anyof / allof ( ... , ... )
case T_LEFT_PARENTHESIS:
pushArgs();
while (command && !(command.tests instanceof Sieve.Grammar.TestList)) {
while (command && !(command.tests instanceof Grammar.TestList)) {
levels.pop();
command = levels.last();
}
@ -220,14 +214,14 @@ Sieve.parseScript = script => {
pushArgs();
levels.pop();
command = levels.last();
(command.tests instanceof Sieve.Grammar.TestList) || error('Test end not part of test-list');
(command.tests instanceof Grammar.TestList) || error('Test end not part of test-list');
break;
case T_COMMA:
pushArgs();
levels.pop();
command = levels.last();
// Must be inside PARENTHESIS aka test-list
(command.tests instanceof Sieve.Grammar.TestList) || error('Comma not part of test-list');
(command.tests instanceof Grammar.TestList) || error('Comma not part of test-list');
break;
case T_UNKNOWN: