tailscale

Commit Graph

Author	SHA1	Message	Date
James Tucker	8fa3026614	tsweb: switch to fastuuid for request ID generation Request ID generation appears prominently in some services cumulative allocation rate, and while this does not eradicate this issue (the API still makes UUID objects), it does improve the overhead of this API and reduce the amount of garbage that it produces. Updates tailscale/corp#18266 Updates tailscale/corp#19054 Signed-off-by: James Tucker <james@tailscale.com>	8 months ago
Maisem Ali	21b32b467e	tsweb: handle panics in retHandler We would have incomplete stats and missing logs in cases of panics. Updates tailscale/corp#18687 Signed-off-by: Maisem Ali <maisem@tailscale.com>	8 months ago
James Tucker	9eaa56df93	tsweb: update doc on BucketedStatsOptions.Finish to match behavior I originally came to update this to match the documented behavior, but the code is deliberately avoiding this behavior currently, making it hard to decide how to update this. For now just align the documentation to the behavior. Updates #cleanup Signed-off-by: James Tucker <james@tailscale.com>	8 months ago
Brad Fitzpatrick	b0941b79d6	tsweb: make BucketedStats not track 400s, 404s, etc Updates tailscale/corp#18687 Change-Id: I142ccb1301ec4201c70350799ff03222bce96668 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	8 months ago
Brad Fitzpatrick	354cac74a9	tsweb/varz: add charset=utf-8 to varz handler Some of our labels contain UTF-8 and get mojibaked in the browser right now. Updates tailscale/corp#18687 Change-Id: I6069cffd6cc8813df415f06bb308bc2fc3ab65c4 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	8 months ago
Brad Fitzpatrick	55baf9474f	metrics, tsweb/varz: add multi-label map metrics Updates tailscale/corp#18640 Change-Id: Ia9ae25956038e9d3266ea165537ac6f02485b74c Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	8 months ago
Brad Fitzpatrick	4992aca6ec	tsweb/varz: flesh out munging of expvar keys into valid Prometheus metrics From a problem we hit with how badger registers expvars; it broke trunkd's exported metrics. Updates tailscale/corp#1297 Change-Id: I42e1552e25f734c6f521b6e993d57a82849464b2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	8 months ago
Andrew Dunham	8f27d519bb	tsweb: add String method to tsweb.RequestID In case we want to change the format to something opaque later. Updates tailscale/corp#2549 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: Ie2eac8b885b694be607e9d5101d24b650026d89c	9 months ago
Chris Palmer	13853e7f29	tsweb: add more test cases for TestCleanRedirectURL (#11331 ) Updates #cleanup Signed-off-by: Chris Palmer <cpalmer@tailscale.com>	9 months ago
Andrew Lytvynov	c7474431f1	tsweb: allow empty redirect URL in CleanRedirectURL (#11295 ) Updates #cleanup Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	9 months ago
Andrew Dunham	23e9447871	tsweb: expose function to generate request IDs For use in corp. Updates tailscale/corp#2549 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: I71debae1ce9ae48cf69cc44c2ab5c443fc3b2005	9 months ago
Patrick O'Doherty	256ecd0e8f	Revert "tsweb: update ServeMux matching to 1.22.0 syntax (#11090 )" (#11125 ) This reverts commit `30c9189ed3`. Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>	10 months ago
Patrick O'Doherty	30c9189ed3	tsweb: update ServeMux matching to 1.22.0 syntax (#11090 ) * tsweb: update ServeMux matching to 1.22.0 syntax Updates #cleanup Go 1.22.0 introduced the ability to use more expressive routing patterns that include HTTP method when constructing ServeMux entries. Applications that attempted to use these patterns in combination with the old `tsweb.Debugger` would experience a panic as Go would not permit the use of matching rules with mixed level of specificity. We now specify the method for each `/debug` handler to prevent incompatibilities. Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>	10 months ago
Patrick O'Doherty	7c52b27daf	Revert "tsweb: update ServeMux matching to 1.22.0 syntax (#11087 )" (#11089 ) This reverts commit `291f91d164`. Updates #cleanup This PR needs additional changes to the registration of child handlers under /debug Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>	10 months ago
Patrick O'Doherty	291f91d164	tsweb: update ServeMux matching to 1.22.0 syntax (#11087 ) Updates #cleanup Go 1.22.0 introduced the ability to use more expressive routing patterns that include HTTP method when constructing ServeMux entries. Applications that attempted to use these patterns in combination with the old `tsweb.Debugger` would experience a panic as Go would not permit the use of matching rules with mixed level of specificity. Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>	10 months ago
Brad Fitzpatrick	2bd3c1474b	util/cmpx: delete now that we're using Go 1.22 Updates #11058 Change-Id: I09dea8e86f03ec148b715efca339eab8b1f0f644 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	10 months ago
Tom DNetto	653721541c	tsweb: normalize passkey identities in bucketed stats Signed-off-by: Tom DNetto <tom@tailscale.com> Updates: corp#17075	10 months ago
Tom DNetto	8d6d9d28ba	tsweb: normalize common StableID's in bucketed stats, export as LabelMap Signed-off-by: Tom DNetto <tom@tailscale.com> Updates: corp#17075	10 months ago
Tom DNetto	af931dcccd	tsweb: replace domains/emails in paths when bucketing stats Signed-off-by: Tom DNetto <tom@tailscale.com> Updates: corp#17075	10 months ago
Tom DNetto	36efc50817	tsweb: implementing bucketed statistics for started/finished counts Signed-off-by: Tom DNetto <tom@tailscale.com> Updates: corp#17075	10 months ago
David Anderson	ae79b2e784	tsweb: add a helper to validate redirect URLs We issue redirects in a few different places, it's time to have a common helper to do target validation. Updates tailscale/corp#16875 Signed-off-by: David Anderson <danderson@tailscale.com>	11 months ago
Joe Tsai	c25968e1c5	all: make use of ctxkey everywhere (#10846 ) Also perform minor cleanups on the ctxkey package itself. Provide guidance on when to use ctxkey.Key[T] over ctxkey.New. Also, allow for interface kinds because the value wrapping trick also happens to fix edge cases with interfaces in Go. Updates #cleanup Signed-off-by: Joe Tsai <joetsai@digital-static.net>	11 months ago
Chris Palmer	1f1ab74250	tsweb: use object-src instead of plugin-types (#10719 ) plugin-types is deprecated, and setting object-src: 'none' is best practice. This should result in no functional change. Fixes #10718 Signed-off-by: Chris Palmer <cpalmer@tailscale.com>	11 months ago
Marwan Sulaiman	b819f66eb1	tsweb: propagate RequestID via context and entire request The recent addition of RequestID was only populated if the HTTP Request had returned an error. This meant that the underlying handler has no access to this request id and any logs it may have emitted were impossible to correlate to that request id. Therefore, this PR adds a middleware to generate request ids and pass them through the request context. The tsweb.StdHandler automatically populates this request id if the middleware is being used. Finally, inner handlers can use the context to retrieve that same request id and use it so that all logs and events can be correlated. Updates #2549 Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>	1 year ago
Maisem Ali	5ee349e075	tsweb/varz: fix exporting histograms Updates tailscale/corp#8641 Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Dave Anderson	7b18ed293b	tsweb: check for key-based debug access before XFF check (#9093 ) Fly apps all set X-Forwarded-For, which breaks debug access even with a preshared key otherwise. Updates tailscale/corp#3601 Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
David Anderson	5cfa85e604	tsweb: clean up pprof handler registration, document why it's there Updates #cleanup Signed-off-by: David Anderson <danderson@tailscale.com>	1 year ago
Adrian Dewhurst	f75a36f9bc	tsweb: add request ID for errors If an optional request ID generating func is supplied to StdHandler, then requests that return an error will be logged with a request ID that is also shown as part of the response. Updates tailscale/corp#2549 Change-Id: Ic7499706df42f95b6878d44d4aab253e2fc6a69b Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>	1 year ago
Andrew Lytvynov	7c04846eac	tsweb: relax CSP for debug handlers (#8649 ) Allow inline CSS for debug handlers to make prototyping easier. These are generally not accessible to the public and the small risk of CSS injection via user content seems acceptable. Also allow form submissions on the same domain, instead of banning all forms. An example of such form is http://webhooks.corp.ts.net:6359/debug/private-nodes/ Updates #3576 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	1 year ago
Maisem Ali	3304819739	metrics: add histogram support Add initial histogram support. Updates tailscale/corp#8641 Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Andrew Lytvynov	96d7af3469	cmd/derper,tsweb: consistently add HTTP security headers (#8579 ) Add a few helper functions in tsweb to add common security headers to handlers. Use those functions for all non-tailscaled-facing endpoints in derper. Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	1 year ago
Adrian Dewhurst	cd4c71c122	tstest: prepare for Clock API changes This change introduces tstime.NewClock and tstime.ClockOpts as a new way to construct tstime.Clock. This is a subset of #8464 as a stepping stone so that we can update our internal code to use the new API before making the second round of changes. Updates #8463 Change-Id: Ib26edb60e5355802aeca83ed60e4fdf806c90e27 Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>	1 year ago
Brad Fitzpatrick	79ee6d6e1e	tsweb/varz: use default metrics.LabelMap.Label on serialization To not break Prometheus if the label is unset. Updates tailscale/corp#12830 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Brad Fitzpatrick	eefee6f149	all: use cmpx.Or where it made sense I left a few out where writing it explicitly was better for various reasons. Updates #8296 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
James Tucker	5c38f0979e	tsweb/promvarz: fix repeated expvar definition in test expvar can only be defined once, so running tests with a repeat counter will fail if the variables are defined inside of the test function. Observed failure: ``` --- FAIL: TestHandler (0.00s) panic: Reuse of exported var name: gauge_promvarz_test_expvar [recovered] panic: Reuse of exported var name: gauge_promvarz_test_expvar goroutine 9 [running]: testing.tRunner.func1.2({0x100f267e0, 0x1400026e770}) /usr/local/go/src/testing/testing.go:1526 +0x1c8 testing.tRunner.func1() /usr/local/go/src/testing/testing.go:1529 +0x364 panic({0x100f267e0, 0x1400026e770}) /usr/local/go/src/runtime/panic.go:884 +0x1f4 log.Panicln({0x140000b8e20?, 0x1a?, 0x1400026e750?}) /usr/local/go/src/log/log.go:398 +0x60 expvar.Publish({0x100e2b21d, 0x1a}, {0x100fd7a08?, 0x140000232c0}) /usr/local/go/src/expvar/expvar.go:284 +0xc0 expvar.NewInt(...) /usr/local/go/src/expvar/expvar.go:304 tailscale.com/tsweb/promvarz.TestHandler(0x14000082b60) /Users/charlotte/ts-src/tailscale/tsweb/promvarz/promvarz_test.go:18 +0x5c testing.tRunner(0x14000082b60, 0x100fd5858) /usr/local/go/src/testing/testing.go:1576 +0x104 created by testing.(*T).Run /usr/local/go/src/testing/testing.go:1629 +0x370 FAIL tailscale.com/tsweb/promvarz 0.149s ``` Fixes #8065 Signed-off-by: James Tucker <james@tailscale.com>	2 years ago
Anton Tolchanov	8546ff98fb	tsweb: move varz handler(s) into separate modules This splits Prometheus metric handlers exposed by tsweb into two modules: - `varz.Handler` exposes Prometheus metrics generated by our expvar converter; - `promvarz.Handler` combines our expvar-converted metrics and native Prometheus metrics. By default, tsweb will use the promvarz handler, however users can keep using only the expvar converter. Specifically, `tailscaled` now uses `varz.Handler` explicitly, which avoids a dependency on the (heavyweight) Prometheus client. Updates https://github.com/tailscale/corp/issues/10205 Signed-off-by: Anton Tolchanov <anton@tailscale.com>	2 years ago
Anton Tolchanov	c153e6ae2f	prober: migrate to Prometheus metric library This provides an example of using native Prometheus metrics with tsweb. Prober library seems to be the only user of PrometheusVar, so I am removing support for it in tsweb. Updates https://github.com/tailscale/corp/issues/10205 Signed-off-by: Anton Tolchanov <anton@tailscale.com>	2 years ago
Anton Tolchanov	11e6247d2a	tsweb: expose native Prometheus metrics in /debug/varz The handler will expose built-in process and Go metrics by default, which currently duplicate some of the expvar-proxied metrics (`goroutines` vs `go_goroutines`, `memstats` vs `go_memstats`), but as long as their names are different, Prometheus server will just scrape both. This will change /debug/varz behaviour for most tsweb binaries, but notably not for control, which configures a `tsweb.VarzHandler` [explicitly](`a5b5d5167f/cmd/tailcontrol/tailcontrol.go (L779)`) Updates https://github.com/tailscale/corp/issues/10205 Signed-off-by: Anton Tolchanov <anton@tailscale.com>	2 years ago
Maisem Ali	1a30b2d73f	all: use tstest.Replace more Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 years ago
David Anderson	8b2ae47c31	version: unexport all vars, turn Short/Long into funcs The other formerly exported values aren't used outside the package, so just unexport them. Signed-off-by: David Anderson <danderson@tailscale.com>	2 years ago
Brad Fitzpatrick	b1248442c3	all: update to Go 1.20, use strings.CutPrefix/Suffix instead of our fork Updates #7123 Updates #5309 Change-Id: I90bcd87a2fb85a91834a0dd4be6e03db08438672 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
Will Norris	10085063fb	util/vizerror: add As function to get wrapped Error Signed-off-by: Will Norris <will@tailscale.com>	2 years ago
Will Norris	51e1ab5560	fixup! util/vizerror: add new package for visible errors Signed-off-by: Will Norris <will@tailscale.com>	2 years ago
Will Norris	648aa00a28	fixup! util/vizerror: add new package for visible errors Signed-off-by: Will Norris <will@tailscale.com>	2 years ago
Will Norris	598ec463bc	fixup! util/vizerror: add new package for visible errors Signed-off-by: Will Norris <will@tailscale.com>	2 years ago
Will Norris	71029cea2d	all: update copyright and license headers This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>	2 years ago
Anton Tolchanov	f053f16460	tsweb: export version metrics to Prometheus This will allow tracking build versions and runtime versions in Prometheus. Signed-off-by: Anton Tolchanov <anton@tailscale.com>	2 years ago
Mihai Parparita	33520920c3	all: use strs.CutPrefix and strs.CutSuffix more Updates places where we use HasPrefix + TrimPrefix to use the combined function. Updates #5309 Signed-off-by: Mihai Parparita <mihai@tailscale.com>	2 years ago
Anton Tolchanov	f40bb199f5	tsweb: cache prometheus metric names & types Signed-off-by: Anton Tolchanov <anton@tailscale.com>	2 years ago
Anton Tolchanov	3c27632ffe	tsweb: avoid dashes in Prometheus metric names Ideally we should strip other invalid characters too, but that would call for a regexp replacement which increases the number of allocations and makes `TestVarzHandlerSorting` fail. Signed-off-by: Anton Tolchanov <anton@tailscale.com>	2 years ago

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127 Commits (7f4cda23acb2f8341522741688a2f17082d84ed7)