ducky/devices
ducky/devices/vendor/code.secondbit.org/pqarrays.hg/parser.go
Add endpoint for retrieving devices. Add an endpoint for retrieving devices, either as a list or by ID. Stub endpoints for updating and deleting devices., along with TODOs marking them as things to still be completed. (Right now, accessing those endpoints is an insta-panic.) Simplify our handleCreateDevices by returning StatusUnauthorized if AuthUser fails, so we can reserve StatusForbidden for when auth succeeds but access is still denied. Also, delay the instantiation and allocation of a Response variable until we're actually going to use it. Create a handleGetDevices handler that authenticates the user, and if no ID is set, returns a list of all their Devices. If one or more IDs are set, only those Devices are returned. If ScopeViewPushToken is one of the scopes associated with the request, the push tokens for each Device will be included in the response. Otherwise, they will be omitted.
| paddy@16 | 1 package pqarrays |
| paddy@16 | 2 |
| paddy@16 | 3 import ( |
| paddy@16 | 4 "errors" |
| paddy@16 | 5 ) |
| paddy@16 | 6 |
| paddy@16 | 7 func parse(l *lexer) ([]*string, error) { |
| paddy@16 | 8 var parsed []*string |
| paddy@16 | 9 pchan := make(chan *string) |
| paddy@16 | 10 errchan := make(chan error) |
| paddy@16 | 11 done := make(chan struct{}) |
| paddy@16 | 12 go runParse(l, pchan, errchan, done) |
| paddy@16 | 13 for { |
| paddy@16 | 14 select { |
| paddy@16 | 15 case err := <-errchan: |
| paddy@16 | 16 return parsed, err |
| paddy@16 | 17 case item := <-pchan: |
| paddy@16 | 18 parsed = append(parsed, item) |
| paddy@16 | 19 case <-done: |
| paddy@16 | 20 return parsed, nil |
| paddy@16 | 21 } |
| paddy@16 | 22 } |
| paddy@16 | 23 } |
| paddy@16 | 24 |
| paddy@16 | 25 func runParse(l *lexer, parsed chan *string, err chan error, done chan struct{}) { |
| paddy@16 | 26 var state parseFunc = parseStart |
| paddy@16 | 27 for { |
| paddy@16 | 28 var e error |
| paddy@16 | 29 state, e = state(l, parsed) |
| paddy@16 | 30 if e != nil { |
| paddy@16 | 31 err <- e |
| paddy@16 | 32 break |
| paddy@16 | 33 } |
| paddy@16 | 34 if state == nil { |
| paddy@16 | 35 break |
| paddy@16 | 36 } |
| paddy@16 | 37 } |
| paddy@16 | 38 close(done) |
| paddy@16 | 39 } |
| paddy@16 | 40 |
| paddy@16 | 41 type parseFunc func(*lexer, chan *string) (parseFunc, error) |
| paddy@16 | 42 |
| paddy@16 | 43 func parseEOF(l *lexer, parsed chan *string) (parseFunc, error) { |
| paddy@16 | 44 tok := l.nextToken() |
| paddy@16 | 45 if tok.typ == tokenWhitespace { |
| paddy@16 | 46 tok = l.nextToken() |
| paddy@16 | 47 } |
| paddy@16 | 48 if tok.typ != tokenEOF { |
| paddy@16 | 49 return nil, errors.New("expected EOF, got " + tok.typ.String()) |
| paddy@16 | 50 } |
| paddy@16 | 51 return nil, nil |
| paddy@16 | 52 } |
| paddy@16 | 53 |
| paddy@16 | 54 func parseStringOrNull(l *lexer, parsed chan *string) (parseFunc, error) { |
| paddy@16 | 55 tok := l.nextToken() |
| paddy@16 | 56 if tok.typ == tokenWhitespace { |
| paddy@16 | 57 tok = l.nextToken() |
| paddy@16 | 58 } else if tok.typ == tokenString { |
| paddy@16 | 59 parsed <- &tok.val |
| paddy@16 | 60 return parseSeparatorOrDelim, nil |
| paddy@16 | 61 } else if tok.typ == tokenNull { |
| paddy@16 | 62 parsed <- nil |
| paddy@16 | 63 return parseSeparatorOrDelim, nil |
| paddy@16 | 64 } |
| paddy@16 | 65 return nil, errors.New("expected string, got " + tok.typ.String()) |
| paddy@16 | 66 } |
| paddy@16 | 67 |
| paddy@16 | 68 func parseSeparatorOrDelim(l *lexer, parsed chan *string) (parseFunc, error) { |
| paddy@16 | 69 tok := l.nextToken() |
| paddy@16 | 70 if tok.typ == tokenWhitespace { |
| paddy@16 | 71 return parseSeparatorOrDelim, nil |
| paddy@16 | 72 } else if tok.typ == tokenSeparator { |
| paddy@16 | 73 return parseStringOrNull, nil |
| paddy@16 | 74 } else if tok.typ == tokenArrayEnd { |
| paddy@16 | 75 return parseEOF, nil |
| paddy@16 | 76 } |
| paddy@16 | 77 return nil, errors.New("expected separator or delim, got " + tok.typ.String()) |
| paddy@16 | 78 } |
| paddy@16 | 79 |
| paddy@16 | 80 func parseStart(l *lexer, parsed chan *string) (parseFunc, error) { |
| paddy@16 | 81 tok := l.nextToken() |
| paddy@16 | 82 if tok.typ == tokenWhitespace { |
| paddy@16 | 83 return parseStart, nil |
| paddy@16 | 84 } else if tok.typ == tokenArrayStart { |
| paddy@16 | 85 return parseStringOrNull, nil |
| paddy@16 | 86 } |
| paddy@16 | 87 return nil, errors.New("expected separator or delim, got " + tok.typ.String()) |
| paddy@16 | 88 } |