* Offchain worker: Enable http2 and improve logging

Apparently some webpages now return http2 by default and that silently breaks the offchain http
extension. The solution to this is to enable the `http2` feature of hyper. Besides that, this pr
improves the logging to make it easier to debug such errors.

* FMT

* Adds http2 test

* Offchain-worker: Make it possible to disable http support

If a chain doesn't require http support in its offchain workers, this pr enables them to disable the
http support.

* Switch to bitflags

* Use Capabilities

* Update client/offchain/src/lib.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Fix test

* Update client/offchain/src/lib.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Remove the last bits of unknown_os in the code base

* Fmt

* Run cargo fmt on the whole code base

* Second run

* Add CI check

* Fix compilation

* More unnecessary braces

* Handle weights

* Use --all

* Use correct attributes...

* Fix UI tests

* AHHHHHHHHH

* 

* Docs

* Fix compilation

* 

* Please stop

* 

 x 2

* More

* make rustfmt.toml consistent with polkadot

Co-authored-by: André Silva <andrerfosilva@gmail.com>

* Add MMR custom RPC.

* Change RuntimeApi to avoid hardcoding leaf type.

* Properly implement the new RuntimeAPI and wire up RPC.

* Extract Offchain DB as separate execution extension.

* Enable offchain DB access for offchain calls.

* Fix offchain_election tests.

* Skip block initialisation for proof generation.

* Fix integration test setup.

* Fix offchain tests. Not sure how I missed them earlier .

* Fix long line.

* One more test missing.

* Update mock for multi-phase.

* Address review grumbbles.

* Address review grumbles.

* Fix line width of a comment

* *: Update to libp2p v0.33.0

* client/network: Consistently track request arrival time

With https://github.com/libp2p/rust-libp2p/pull/1886/ one is guaranteed
to receive either a `ResponseSent` or a `InboundFailure` event for each
received inbound request via `RequestResponseEvent::Message`. Given this
guarantee there is no need to track arrival times in a best-effort
manner and thus there is no need to use a LRU cache for arrival times.

* client/offchain: Adjust to PeerId API changes

* Happy new year

Updates the copyright years and fixes wrong license headers.

* Fix the template

* Split HEADER into HEADER-APACHE & HEADER-GPL

* init_logger: switch from log-based to tracing-based and add compatibility layer

* Move tracing profiling subscriber related config realization

* sp-tracing: change profiling to be a layer instead of a subscriber

* Enable profiling layer in cli

* Change all test env_logger init to sp_tracing::try_init_simple

* Remove all local env_logger dependency

* Add missing tracing-subscriber dependency

* frame-sudo: fix tests

* frame-support: fix tests

* Fix frame/pallet and executor tests

* Fix the remaining tests

* Use subscriber's try_init as recommended by @davidbarsky

* Be explict that the tracing-log feature is needed

* Set subscriber writer to stderr

* Shorter line width

* Update cargo lock tracing version

* Fix sc_tracing crate compile

* Fix sc_authority_discovery crate test

* unremove default-features

* Leave enabled to default true

* Warn if global default cannot be set

* Fix unused import

* Remove unused PROXY_TARGET

* Change all reference from rc5 to rc6

* Change all reference of rc2 to rc6

* Fix styling

* Fix typo

* make logger init error'ing

* re-fixing the test issue

Co-authored-by: Benjamin Kampmann <ben@parity.io>

* add offchain worker api to set reserved nodes.

* new offchain api to get node public key.

* node public key from converter

* refactor set reserved nodes ocw api.

* new ndoe authorization pallet

* remove unnecessary clone and more.

* more

* tests for node authorization pallet

* remove dependency

* fix build

* more tests.

* refactor

* Update primitives/core/src/offchain/testing.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Update frame/node-authorization/src/lib.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Update frame/node-authorization/src/lib.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Update frame/node-authorization/src/lib.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* format code

* expose NetworkService

* remove NetworkStateInfo in offchain

* replace NodePublicKey with PeerId.

* set max length of peer id.

* clear more

* use BTreeSet for set of peers.

* decode opaque peer id.

* extract NetworkProvider for client offchain.

* use OpaquePeerId in node authorization pallet.

* fix test

* better documentation

* fix test

* doc

* more fix

* Update primitives/core/src/offchain/mod.rs

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>

* Update client/offchain/src/api.rs

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>

* derive serialize and deserialize

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>

* Remove any implementation of `Spawn` or `Executor` from our task executors

* Fix compilation

* Rename `SpawnBlockingExecutor`

* Update primitives/core/src/traits.rs

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Fix tests

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Fix typo in offchain's docs

* Use Self keyword in AsyncApi::new()

* Move httpclient to be part of OffchainWorkers to optimize block import

* Fix compilation errors for tests

* Add wrapper struct for HyperClient

* Use lazy_static share SharedClient amongst OffchainWorkers. Remove the need to raise the fd limit

* Revert "Use lazy_static share SharedClient amongst OffchainWorkers. Remove the need to raise the fd limit"

This reverts commit 7af97498a2383b5d7405e27823db8fd97245da41.

* Add lazy_static for tests

* feat/offchain/storage: add remove interface method

* feat/offchain/storeage: add remote to StorageValueRef

* feat/offchain/storage: add storage lock

* fix/review: Apply suggestions from code review

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>

* refactor/offchain/storage/lock: introduce `Lockable` trait part 1 of 2

* chore/offchain/rename: _remove -> clean

* feat/offchain/storage/lock: add TimeAndBlock based part 2 of 2

* fix/offchain/storage/lock: block and time expiry must be && not ||

* chore/offchain/storage: minor fmt doc comments

* doc/comment: prefer markdown emphasis over CAPS

* doc/comment: rewrap multiline module level docs

* doc/comment: rephrase

* impl sleep_until and use the actual time for the test env

* feat/test: add more tests, ignore some sample impl doctests

* fix/review: Apply suggestions from code review

Co-authored-by: Nikolay Volf <nikvolf@gmail.com>

* doc/comment: better description

* fix/review: Apply suggestions from code review

Co-authored-by: Nikolay Volf <nikvolf@gmail.com>

* chore/storage: lifetime cleanup

* fix/cleanup: trait bounds, cargo-spellcheck + extra explanations

* fix/doc: periods +-

* fix/review: Apply suggestions from code review

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* cleanup: remove explicit lifetime bound, copy -> clone

* fix/review: make trait Lockable contain only static, try_lock should not return Err(Option<L>),

* chore/lifetimes: remove a couple of lifetime bounds which the compiler can figure out

* refactor: migrate to an instant based

* fix/feedback: fix, reduce, rename, docs update pending

* docs/reword: adjust to changed code

* fix/offchain/testing: timestamp and sleep_until shall not block

* chore/lines: lines must < 100 chars

* fix/docs: add missing pub field doc comments

* refactor/x: try_lock does not need to return an Option<_>

* refactor/simplify: a better way of waiting for a lock to resolve

* docs: consistency

* fix/line: < 100

* fix/doctest/use: avoid crate::

* fix/doctest: *

* fix/review: remove unused trait bound

* fix/review: pretty by const fn

* fix/review: reduce default timeout to 20s

* docs: grammar

* fix/review: add with_block_deadline

* doc: revamp BlockNumberProvider documentation to be less frame centric

* chore: fmt

* docs: add missing doc comment

Co-authored-by: Bernhard Schuster <bernhard@parity.io>
Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-authored-by: Peter Goodspeed-Niklaus <coriolinus@users.noreply.github.com>
Co-authored-by: Nikolay Volf <nikvolf@gmail.com>

* Implement local_peer_id for gossip

* refactor local_peer_id

* fix

* reset gossip

* Update tests.rs

* fix ci

* fix review

* fix Cargo.lock

* fix Cargo.lock

* Rename: Phase 1.

* Unify codec.

* Fixing: Phase 2

* Fixing: Phase 3.

* Fixing: Phase 4.

* Fixing: Phase 5.

* Fixing: Phase 6.

* Fixing: Phase 7.

* Fixing: Phase 8. Tests

* Fixing: Phase 9. Tests!!!

* Fixing: Phase 10. Moar tests!

* Finally done!

* More fixes.

* Rename primitives:: to sp_core::

* Apply renames in finality-grandpa.

* Fix benches.

* Fix benches 2.

* Revert node-template.

* Fix frame-system in our modules.

* Pass Extensions instead of individual objects.

* Move TransactionPool to a separate ExternalitiesExtension.

* Fix compilation.?

* Clean up.

* Refactor testing utilities.

* Add docs, fix tests.

* Fix doctest.

* Fix formatting and add some logs.

* Add some docs.

* Remove unused files.

* Adding first rough ouline of the repository structure

* Remove old CI stuff

* add title

* formatting fixes

* move node-exits job's script to scripts dir

* Move docs into subdir

* move to bin

* move maintainence scripts, configs and helpers into its own dir

* add .local to ignore

* move core->client

* start up 'test' area

* move test client

* move test runtime

* make test move compile

* Add dependencies rule enforcement.

* Fix indexing.

* Update docs to reflect latest changes

* Moving /srml->/paint

* update docs

* move client/sr-* -> primitives/

* clean old readme

* remove old broken code in rhd

* update lock

* Step 1.

* starting to untangle client

* Fix after merge.

* start splitting out client interfaces

* move children and blockchain interfaces

* Move trie and state-machine to primitives.

* Fix WASM builds.

* fixing broken imports

* more interface moves

* move backend and light to interfaces

* move CallExecutor

* move cli off client

* moving around more interfaces

* re-add consensus crates into the mix

* fix subkey path

* relieve client from executor

* starting to pull out client from grandpa

* move is_decendent_of out of client

* grandpa still depends on client directly

* lemme tests pass

* rename srml->paint

* Make it compile.

* rename interfaces->client-api

* Move keyring to primitives.

* fixup libp2p dep

* fix broken use

* allow dependency enforcement to fail

* move fork-tree

* Moving wasm-builder

* make env

* move build-script-utils

* fixup broken crate depdencies and names

* fix imports for authority discovery

* fix typo

* update cargo.lock

* fixing imports

* Fix paths and add missing crates

* re-add missing crates

* expose offchain worker storage prefix

* add docs

* move STORAGE_PREFIX to primitives

* Make substrate-offchain compile for WASM again

* Minor adjustments

* async txpool API

* Update core/rpc/src/author/mod.rs

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Update core/transaction-pool/graph/src/pool.rs

Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Pool -> Pool + ValidatedPool

* removed lost block_on when importing xt from network

* fix grumbles

* alias for future::Executor in rpc

* removed executor from Author RPCs

* Pool + SharedValidatedPool -> Pool

* fix compilation after merge

* another fix

* another fix

* Add random_seed impl for offchain api

* switch to rand::random

* Implement HTTP request in offchain workers

* Bump impl_version

* Don't compile offchain workers for WASM anymore

* Initialize HttpConnector as a fallback.

* Apply review suggestions 

* Implement `is_validator` for offchain-workers

* Introduce `--no-validator` flag

* Don't run babe/grandpa/im-online when `--no-validator` is given

* Fixes compilation

* Bump spec version

* Improve error handling in executor

* Add missing extern function

* Revert making error public

* Remove `--no-validator` CLI

* Switch offchain workers to new futures

* Fix tests

* Add Call type to extensible transactions.

Cleanup some naming

* Merge Resource and BlockExhausted into just Exhausted

* Fix

* Another fix

* Call

* Some fixes

* Fix srml tests.

* Fix all tests.

* Refactor crypto so each application of it has its own type.

* Introduce new AuthorityProvider API into Aura

This will eventually allow for dynamic determination of authority
keys and avoid having to set them directly on CLI.

* Introduce authority determinator for Babe.

Experiment with modular consensus API.

* Work in progress to introduce KeyTypeId and avoid polluting API
with validator IDs

* Finish up drafting imonline

* Rework offchain workers API.

* Rework API implementation.

* Make it compile for wasm, simplify app_crypto.

* Fix compilation of im-online.

* Fix compilation of im-online.

* Fix more compilation errors.

* Make it compile.

* Fixing tests.

* Rewrite `keystore`

* Fix session tests

* Bring back `TryFrom`'s'

* Fix `srml-grandpa`

* Fix `srml-aura`

* Fix consensus babe

* More fixes

* Make service generate keys from dev_seed

* Build fixes

* Remove offchain tests

* More fixes and cleanups

* Fixes finality grandpa

* Fix `consensus-aura`

* Fix cli

* Fix `node-cli`

* Fix chain_spec builder

* Fix doc tests

* Add authority getter for grandpa.

* Test fix

* Fixes

* Make keystore accessible from the runtime

* Move app crypto to its own crate

* Update `Cargo.lock`

* Make the crypto stuff usable from the runtime

* Adds some runtime crypto tests

* Use last finalized block for grandpa authority

* Fix warning

* Adds `SessionKeys` runtime api

* Remove `FinalityPair` and `ConsensusPair`

* Minor governance tweaks to get it inline with docs.

* Make the governance be up to date with the docs.

* Build fixes.

* Generate the inital session keys

* Failing keystore is a hard error

* Make babe work again

* Fix grandpa

* Fix tests

* Disable `keystore` in consensus critical stuff

* Build fix.

* ImOnline supports multiple authorities at once.

* Update core/application-crypto/src/ed25519.rs

* Merge branch 'master' into gav-in-progress

* Remove unneeded code for now.

* Some `session` testing

* Support querying the public keys

* Cleanup offchain

* Remove warnings

* More cleanup

* Apply suggestions from code review

Co-Authored-By: Benjamin Kampmann <ben.kampmann@googlemail.com>

* More cleanups

* JSONRPC API for setting keys.

Also, rename traits::KeyStore* -> traits::BareCryptoStore*

* Bad merge

* Fix integration tests

* Fix test build

* Test fix

* Fixes

* Warnings

* Another warning

* Bump version.

* WIP: update codec

* WIP

* compiling

* WIP

* rename parity-scale-codec to codec

* WIP

* fix

* remove old comments

* use published crates

* fix expected error msg

* bump version

* fmt and fix

* remove old comment

* fix wrong decoding impl

* implement encode like for structures

* undo removal of old pending changes

* trailingzeroinput

* Apply suggestions from code review

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>
Co-Authored-By: DemiMarie-parity <48690212+DemiMarie-parity@users.noreply.github.com>

* update codec

* fmt

* version is 1.0.0

* show more error

* fmt

* refactor sr_primitives.

* Fix try build error.

* Line-width

* Ui test.

* Final fixes.

* Fix build again.

* bring back ui test.

* Fix unsigned import.

* Another ui fix.

* Also refactor substrate-primitives

* Fix benchmarks.

* Fix doc test.

* fix doc tests

* Make local_storage_compare_and_set take Option for old_value

* Adapt srml/im-online to API changes

* Bump version

* Bump version again

* Replace match

* sleep_until Offchain API

* addressed review comments

* timestamp offchain api impl

* Addressed review comments

* fixed expect message

* fixed compile error

* fixed line width

* Update offchain primitives.

* Update offchain worker.

* Update im-online.

* Update service.

* Update node and node-template.

* Update runtime version.

* Fix build.

* Fix offchain worker tests.

* Generalize authority_pubkey.

* Add test.

* Update lib.rs

* Fix grammar and typo

* Extend network service

* Extend offchain API

* Support creating unsigned UncheckedExtrinsic

* Introduce srml/im-online

* Bump impl and spec version

* Fix web-wasm test

* Apply suggestions from code review

Remove parity-multiaddr dependency

Co-Authored-By: Pierre Krieger <pierre.krieger1708@gmail.com>

* Replace transmute with from_raw_parts

* Replace PeerId.to_string() with .to_base58()

Co-Authored-By: Pierre Krieger <pierre.krieger1708@gmail.com>

* Update Cargo.lock

* Bump impl and spec version (again)

It was updated in master in the meantime.

* Apply suggestions from code review

Co-Authored-By: Sergei Pepyakin <sergei@parity.io>

* Address comments

* Add public function is_online_in_current_session()

* Bump spec_version

* Fix doc tests

* Improve comments

* Remove superfluous line

* Name parameters consistently

* Implement comments

* Switch From to TryFrom

* Use Vec instead of HashSet

* Fix tests

* Revert me: local testing

* Fix check if already sent during session

We gossip each session, hence we need to check
if already sent in this session (not era).

* Fix typos

* Consistent terminology

* Revert "Revert me: local testing"

This reverts commit 73fbc29ff3e5ed71d99436318260b4f007e837f4.

* Introduce IsMember trait

* Implement misc comments

* Remove unused function

* Fix test

* Fix external_addresses being written

* Fix test

* Add necessary trait bound

* Do not increment version

* Update lib.rs

* Implement sign & verify.

* Use phrases and password.

* Sign & verify with authority keys.

* Fix tests.

* WiP

* WiP

* Allow the caller to decide on 'CryptoKind'.

* Remove TODO.

* Make seed private back.

* Fix non-std build and bump version.

* Use Into<u32> instead of asses.

* Add missing typedef.

* WiP.

* Implement offchain storage APIs.

* Change compare_and_set to return bool.

* Add offchain http test.

* Fix tests.

* Bump spec version.

* Fix warnings and test.

* Fix compilation.

* Remove unused code.

* Introduce Local (fork-aware) and Persistent storage.

* Fix borked merge.

* Prevent warning on depreacated client.backend

* Fix long lines.

* Clean up dependencies.

* Update core/primitives/src/offchain.rs

Co-Authored-By: André Silva <andre.beat@gmail.com>

* Update core/primitives/src/offchain.rs

Co-Authored-By: André Silva <andre.beat@gmail.com>

* WiP: HTTP Apis.

* Working on the API.

* Add docs, clean up the API.

* Expose ext_ stuff as well.

* Implement HTTP helpers for offchain sr-io.

* Remove HTTP stuff.

* Revert "Remove HTTP stuff."

This reverts commit 7cca029d6ae93c5849b50edfcc6d2c313ba3e5bf.

* HTTP apis.

* Additional offchain methods.

* Make it compile.

* Implement wasm-ext boundary of offchain methods.

* Add stubs for offchain stuff to prevent panics.

* Fix tests.

* Addres some more issues.

* Introduce typedef, use unsafe from_utf8

* Bump runtime version.

* Introduce error to distinguish deadline and io errors.

* Add local_storage_cas

* Some tests for offchain stuff.

* Address more grumbles.

* Fix tests compilation.

* Fix borked merge.

* Improve docs for expected return values from ext functions.

* Adding new sign/enrypt/decrypt APIs.

* Remove InherentsPool.

* Introduce transactions that are not propagated over the network.

* Bump spec version.

* Use separate flag for propagation.

* Fix tests.

* Refactor state-machine stuff.

* Fix tests.

* WiP

* WiP2

* Service support for offchain workers.

* Service support for offchain workers.

* Testing offchain worker.

* Initial version working.

* Pass side effects in call.

* Pass OffchainExt in context.

* Submit extrinsics to the pool.

* Support inherents.

* Insert to inherents pool.

* Inserting to the pool asynchronously.

* Add test to offchain worker.

* Implement convenience syntax for modules.

* Dispatching offchain worker through executive.

* Fix offchain test.

* Remove offchain worker from timestamp.

* Update Cargo.lock.

* Address review comments.

* Use latest patch version for futures.

* Add CLI parameter for offchain worker.

* Fix compilation.

* Fix test.

* Fix extrinsics format for tests.

* Fix RPC test.

* Bump spec version.

* Fix executive.

* Fix support macro.

* Address grumbles.

* Bump runtime