Commit Graph

31 Commits (c86761cfd110e1df31b988f266e09ef9bec0477c)

Author SHA1 Message Date
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>
4 years ago
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>
4 years ago
halulu 1835bb6f85
tsweb: rewrite JSONHandler without using reflect (#684)
Closes #656 #657

Signed-off-by: Zijie Lu <zijie@tailscale.com>
4 years ago
Zijie Lu c9e40abfb8 tsweb: jsonhandler: fix content type
Signed-off-by: Zijie Lu <zijie@tailscale.com>
4 years ago
Zijie Lu d1a30be275 tsweb: JSONHandler: supports HTTPError
Signed-off-by: Zijie Lu <zijie@tailscale.com>
4 years ago
Zijie Lu 5e1ee4be53 tsweb: fix JSONHandler nil response
Signed-off-by: Zijie Lu <zijie@tailscale.com>
4 years ago
halulu 1d2e497d47
tsweb: JSONHandler using reflect (#437)
Updates #395 #437

Signed-off-by: Zijie Lu <zijie@tailscale.com>
4 years ago
David Anderson 0038223632 tstest: rename from testy.
Signed-off-by: David Anderson <danderson@tailscale.com>
5 years ago
David Anderson eccae0cd0c tsweb: add ReturnHandlerFunc.
Signed-off-by: David Anderson <danderson@tailscale.com>
5 years ago
Brad Fitzpatrick 7bf436ba30 tsweb: add some Benchmarks
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
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>
5 years ago
David Anderson b446de103a tsweb: fix tests.
Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
David Anderson af3a9dfad6 tsweb: add a StdHandler that doesn't log 200 responses.
Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
Brad Fitzpatrick 2863e49db9 tsweb: don't flush, treat no-op Handler as 200, like Go
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
David Anderson 5d995d9d6b tsweb: add a test case for nil child errors in tsweb.Error.
Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
David Anderson 2c2dff9559 tsweb: don't panic if we get a tsweb.Error with no embedded error.
It's technically weird to return a tsweb.Error with no child err,
but it's a sensible thing to want to do, and we shouldn't panic
if it happens.

Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
David Anderson 12a6626a94 tsweb: use a ResponseWriter wrapper to log more accurately.
Also adds tests, because the logging handler is acquiring a fair
number of branches.

Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
Brad Fitzpatrick 6de37f4cc0 tsweb: move some comments, add a TODO 5 years ago
David Anderson df4636567f tsweb: adjust names and docs of the "handler with errors" functions.
Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
David Anderson 98eceae55e tsweb: add a Handler type.
Handler is like http.Handler, but returns errors. ErrHandler
converts back to an http.Handler, with added error handling
and logging.

Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
Brad Fitzpatrick c706731dc7 tsweb: add copyright header
And fix an unlikely but potential crash.
5 years ago
David Anderson a567c56971 tsweb: pull in tlog data structures from corp repo.
This is a prelude to having logging helpers in tsweb.

Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
Brad Fitzpatrick 5c1e443d34 wgengine/monitor: don't call LinkChange when interfaces look unchanged
Basically, don't trust the OS-level link monitor to only tell you
interesting things. Sanity check it.

Also, move the interfaces package into the net directory now that we
have it.
5 years ago
Brad Fitzpatrick a9cd8f31de tsweb: don't double import expvar; appease staticcheck 5 years ago
Brad Fitzpatrick 890f5dff40 tsweb: export runtime.MemStats var in Prometheus format 5 years ago
Brad Fitzpatrick 61f3fda405 tsweb: let expvar.Ints be gauges too 5 years ago
Brad Fitzpatrick 57de94c7aa tsweb: add /debug/ access via &debugkey + TS_DEBUG_KEY_PATH 5 years ago
David Anderson d580157921 tsweb: quote label values to comply with Prometheus format. 5 years ago
David Anderson f192c05413 metrics: add a LabelMap type for variables with 1 label dimension.
This lets us publish sets of vars that are breakdowns along one
dimension in a format that Prometheus and Grafana natively know
how to do useful things with.

Signed-off-by: David Anderson <dave@natulte.net>
5 years ago
Brad Fitzpatrick e371520cc5 tsweb, derp: add expvar http.Handler for Prometheus's format
And add some opinions.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago
Brad Fitzpatrick 824f825552 tsweb, cmd/derper: move common web/debug stuff from derper to new tsweb
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
5 years ago