Commit Graph

70 Commits

Author SHA1 Message Date
Eng Zer Jun
f0347e841f refactor: move from io/ioutil to io and os packages
The io/ioutil package has been deprecated as of Go 1.16 [1]. This commit
replaces the existing io/ioutil functions with their new definitions in
io and os packages.

Reference: https://golang.org/doc/go1.16#ioutil
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
2022-09-15 21:45:53 -07:00
Brad Fitzpatrick
116f55ff66 all: gofmt for Go 1.19
Updates #5210

Change-Id: Ib02cd5e43d0a8db60c1f09755a8ac7b140b670be
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-08-02 10:08:05 -07:00
Joe Tsai
57275a4912
tsweb: add HTTPError.Header (#5251)
The Header field allows the server to specify specific headers to set.
Example use case: server returns 429 with the "Retry-After" header set.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-01 22:57:04 -07:00
Joe Tsai
a794963e2f
tsweb: mark AccessLogRecord fields as omitempty (#5250)
If the field is the zero value, then avoid serializing the field.
This reduces verbosity in server logs.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-08-01 21:17:38 -07:00
Brad Fitzpatrick
6a396731eb all: use various net/netip parse funcs directly
Mechanical change with perl+goimports.

Changed {Must,}Parse{IP,IPPrefix,IPPort} to their netip variants, then
goimports -d .

Finally, removed the net/netaddr wrappers, to prevent future use.

Updates #5162

Change-Id: I59c0e38b5fbca5a935d701645789cddf3d7863ad
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-07-25 21:12:28 -07:00
Brad Fitzpatrick
7eaf5e509f net/netaddr: start migrating to net/netip via new netaddr adapter package
Updates #5162

Change-Id: Id7bdec303b25471f69d542f8ce43805328d56c12
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-07-25 16:20:43 -07:00
Denton Gentry
755396d6fe tsweb: add Float expvar support in varz
We make assertions about stringification of 0.5. IEEE floating point and
all reasonable proprietary floating point can exactly represent 0.5.
We don't make assertions about other floating point values, too brittle
in tests.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2022-07-11 21:16:46 -07:00
Tom DNetto
32c6823cf5 tsweb: implement interceptor for error page presentation
Updates https://github.com/tailscale/corp/issues/5605

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-06-08 15:21:16 -07:00
Brad Fitzpatrick
0df3b76c25 tsweb: fix Port80Handler redirect to https with FQDN unset
Fixes the current http://pkgs.tailscale.com/ redirect to https:///
as that server doesn't configure the Port80Handler.FQDN field.

Change-Id: Iff56e6127a46c306ca97738d91b217bcab32a582
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-06-05 13:01:30 -07:00
David Anderson
e1c1d47991 tsweb: memoize the string forms of HTTP response codes.
Saves 1-2 allocs per HTTP request after warmup, thanks to
avoiding strconv and fmt.

Signed-off-by: David Anderson <danderson@tailscale.com>
2022-05-13 14:25:17 -07:00
David Anderson
c48513b2be tsweb: support recording unabridged HTTP status codes as well.
Signed-off-by: David Anderson <danderson@tailscale.com>
2022-05-13 13:50:23 -07:00
Brad Fitzpatrick
2d1849a7b9 tsweb: remove JSONHandlerFunc
It's unused and we've decided it's not what we want.

Change-Id: I425a0104e8869630b498a0adfd0f455876d6f92b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-05-04 11:52:07 -07:00
David Anderson
7b4960316b tsweb: add PrometheusVar, for vars that want to output varz themselves.
This enables the infrequent use of more complex Prometheus types, such as
timeseries with high/irregular label cardinality, without needing to
discover and implement generic abstracted type like LabelMap for each one.

Signed-off-by: David Anderson <danderson@tailscale.com>
2022-03-21 12:33:18 -07:00
Maisem Ali
309c0a13a5 tsweb: add FQDN to Port80Handler to allow HTTPS redirects
When the request comes in say over http://mon, the current
implementation would rewrite it https://mon which causes the cert
validation to fail. This PR keeps the existing behavior intact but also
allows passing in a FQDN to the handler to reroute to the correct
hostname.

Related to https://github.com/tailscale/tailscale/pull/4208#pullrequestreview-913832340

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-03-18 10:16:08 -07:00
Josh Bleecher Snyder
0868329936 all: use any instead of interface{}
My favorite part of generics.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2022-03-17 11:35:09 -07:00
Brad Fitzpatrick
61ee72940c all: use Go 1.18's strings.Cut
More remain.

Change-Id: I6ec562cc1f687600758deae1c9d7dbd0d04004cb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-16 14:53:59 -07:00
Brad Fitzpatrick
24c9dbd129 tsweb: fix JSONHandlerFunc regression where HTTP status was lost on gzip
Change-Id: Ia7add6cf7e8b46bb6dd45bd3c0371ea79402fb45
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-09 12:17:14 -08:00
Brad Fitzpatrick
df8f02db3f tsweb: add gzip support to JSONHandlerFunc
Change-Id: I337e05f92f744bfc7e9d6fb8e67c87c191ba4da8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-07 10:31:25 -08:00
Brad Fitzpatrick
41fd4eab5c envknob: add new package for all the strconv.ParseBool(os.Getenv(..))
A new package can also later record/report which knobs are checked and
set. It also makes the code cleaner & easier to grep for env knobs.

Change-Id: Id8a123ab7539f1fadbd27e0cbeac79c2e4f09751
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-01-24 11:51:23 -08:00
nicksherron
f01ff18b6f all: fix spelling mistakes
Signed-off-by: nicksherron <nsherron90@gmail.com>
2021-10-12 21:23:14 -07:00
Brad Fitzpatrick
722942dd46 tsweb: restore CPU profiling handler
It was accidentally deleted in the earlier 0022c3d2e (#2143) refactor.
Lock it in with a test.

Fixes tailscale/corp#2503

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-09-02 09:24:29 -07:00
slowy07
ac0353e982 fix: typo spelling grammar
Signed-off-by: slowy07 <slowy.arfy@gmail.com>
2021-08-24 07:55:04 -07:00
Brad Fitzpatrick
51976ab3a2 tsweb: add vars for unix process start time and version
To be scraped in the Go expvar JSON format, as a string is involved.

For a future tool to record when processes restarted exactly, and at
what version.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-08-23 10:36:28 -07:00
Brad Fitzpatrick
c6740da624 tsweb: make VarzHandler support untyped expvar.Maps for compatibility
Updates #2635

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-08-12 13:35:31 -07:00
Brad Fitzpatrick
7c7eb8094b tsweb: make VarzHandler support expvar.Funcs returning ints/floats
Updates #2635
2021-08-12 13:07:34 -07:00
Brad Fitzpatrick
5aba620fb9 tsweb: make VarzHandler capable of walking structs with reflect
To be used by control, per linked bug's plan.

Updates #2635

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-08-11 18:31:54 -07:00
Brad Fitzpatrick
3700cf9ea4 tsweb: also support LabelMaps from expvar.Map, without metrics
We want to use tsweb to format Prometheus-style metrics from
our temporary golang.org/x/net/http2 fork, but we don't want http2
to depend on the tailscale.com module to use the concrete type
tailscale.com/metrics.LabelMap. Instead, let a expvar.Map be used
instead of it's annotated sufficiently in its name.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-08-10 14:31:54 -07:00
Brad Fitzpatrick
5f45d8f8e6 tsweb: add VarzHandler tests
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2021-08-10 13:41:16 -07:00
julianknodt
3377089583 tsweb: add float64 to logged metrics
A previously added metric which was float64 was being ignored in tsweb, because it previously
only accepted int64 and ints. It can be handled in the same way as ints.

Signed-off-by: julianknodt <julianknodt@gmail.com>
2021-07-25 21:02:36 -07:00
David Anderson
0022c3d2e2 tsweb: replace NewMux with a more flexible DebugHandler.
Signed-off-by: David Anderson <danderson@tailscale.com>
2021-06-16 19:00:47 -07:00
David Anderson
48c25fa36f tsweb: fold StdHandlerOpts and StdHandler200s with StdHandler.
Signed-off-by: David Anderson <danderson@tailscale.com>
2021-06-15 21:55:33 -07:00
David Anderson
72343fbbec tsweb: register expvars once at startup.
Signed-off-by: David Anderson <danderson@tailscale.com>
2021-06-15 21:27:54 -07:00
Josh Bleecher Snyder
516e8a4838 tsweb: add num_goroutines expvar
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2021-02-01 14:38:59 -08:00
David Anderson
692a011b54 net/interfaces: remove IsTailscaleIP, make callers use tsaddr.
Signed-off-by: David Anderson <danderson@tailscale.com>
2021-01-26 15:10:51 -08:00
Brad Fitzpatrick
017dcd520f tsweb: export VarzHandler 2021-01-14 11:49:44 -08:00
David Anderson
57cd7738c2 tsweb: add an endpoint to manually trigger a GC.
Signed-off-by: David Anderson <danderson@tailscale.com>
2020-12-08 16:49:42 -08:00
chungdaniel
e7ac9a4b90
tsweb: refactor JSONHandler to take status code from error if it is present (#905)
This change is to make JSONHandler error handling intuitive, as before there would be two sources of HTTP status code when HTTPErrors were generated: one as the first return value of the handler function, and one nested inside the HTTPError. Previously, it took the first return value as the status code, and ignored the code inside the HTTPError. Now, it should expect the first return value to be 0 if there is an error, and it takes the status code of the HTTPError to set as the response code.

Signed-off-by: Daniel Chung <daniel@tailscale.com>
2020-11-10 09:52:26 -05:00
Josh Bleecher Snyder
3b46655dbb tsweb: add StatusCodeCounters to HandlerOptions
This lets servers using tsweb register expvars
that will track the number of requests ending
in 200s/300s/400s/500s.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2020-10-30 11:07:57 -07:00
Josh Bleecher Snyder
e98f2c57d6 tsweb: add StdHandlerOpts that accepts an options struct
I'm about to add yet another StdHandler option.
Time to refactor.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2020-10-30 11:07:57 -07:00
David Crawshaw
815bf017fc tsweb: when unwrapping HTTPError, record the user-facing message also in the log
There's often some useful piece of information in there not already
repeated in the internal error.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2020-09-17 10:12:48 -04:00
David Crawshaw
dea3ef0597 tsweb: make JSONHandlerFunc implement ReturnHandler, not http.Handler
This way something is capable of logging errors on the server.

Fixes #766

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2020-09-17 09:07:32 -04:00
halulu
1835bb6f85
tsweb: rewrite JSONHandler without using reflect (#684)
Closes #656 #657

Signed-off-by: Zijie Lu <zijie@tailscale.com>
2020-08-18 17:37:01 -04:00
Zijie Lu
c9e40abfb8 tsweb: jsonhandler: fix content type
Signed-off-by: Zijie Lu <zijie@tailscale.com>
2020-07-14 15:27:26 -04:00
Zijie Lu
d1a30be275 tsweb: JSONHandler: supports HTTPError
Signed-off-by: Zijie Lu <zijie@tailscale.com>
2020-06-09 17:40:45 -04:00
Zijie Lu
5e1ee4be53 tsweb: fix JSONHandler nil response
Signed-off-by: Zijie Lu <zijie@tailscale.com>
2020-06-08 15:48:38 -04:00
halulu
1d2e497d47
tsweb: JSONHandler using reflect (#437)
Updates #395 #437

Signed-off-by: Zijie Lu <zijie@tailscale.com>
2020-06-05 00:10:50 -04:00
David Anderson
0038223632 tstest: rename from testy.
Signed-off-by: David Anderson <danderson@tailscale.com>
2020-04-28 20:45:12 -07:00
David Anderson
eccae0cd0c tsweb: add ReturnHandlerFunc.
Signed-off-by: David Anderson <danderson@tailscale.com>
2020-04-22 15:34:28 -07:00
Brad Fitzpatrick
7bf436ba30 tsweb: add some Benchmarks
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2020-04-05 13:16:36 -07:00
Brad Fitzpatrick
64334143a1 tsweb: rename Handler to ReturnHandler
The name's been bugging me for a long time.

I liked neither the overlap between tsweb.Handler and http.Handler,
nor the name "ServeHTTPErr" which sounds like it's an error being
returned, like it's an error handler and not sometimes a happy path.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2020-04-05 13:16:36 -07:00