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Nicolás Venturo 0ec1d761aa Initial GSN support (beta) (#1844) ... * Add base Context contract * Add GSNContext and tests * Add RelayHub deployment to tests * Add RelayProvider integration, complete GSNContext tests * Switch dependency to openzeppelin-gsn-provider * Add default txfee to provider * Add basic signing recipient * Sign more values * Add comment clarifying RelayHub's msg.data * Make context constructors internal * Rename SigningRecipient to GSNRecipientSignedData * Add ERC20Charge recipients * Harcode RelayHub address into GSNContext * Fix Solidity linter errors * Run server from binary, use gsn-helpers to fund it * Migrate to published @openzeppelin/gsn-helpers * Silence false-positive compiler warning * Use GSN helper assertions * Rename meta-tx to gsn, take out of drafts * Merge ERC20 charge recipients into a single one * Rename GSNRecipients to Bouncers * Add GSNBouncerUtils to decouple the bouncers from GSNRecipient * Add _upgradeRelayHub * Store RelayHub address using unstructored storage * Add IRelayHub * Add _withdrawDeposits to GSNRecipient * Add relayHub version to recipient * Make _acceptRelayedCall and _declineRelayedCall easier to use * Rename GSNBouncerUtils to GSNBouncerBase, make it IRelayRecipient * Improve GSNBouncerBase, make pre and post sender-protected and optional * Fix GSNBouncerERC20Fee, add tests * Add missing GSNBouncerSignature test * Override transferFrom in __unstable__ERC20PrimaryAdmin * Fix gsn dependencies in package.json * Rhub address slot reduced by 1 * Rename relay hub changed event * Use released gsn-provider * Run relayer with short sleep of 1s instead of 100ms * update package-lock.json * clear circle cache * use optimized gsn-provider * update to latest @openzeppelin/gsn-provider * replace with gsn dev provider * remove relay server * rename arguments in approveFunction * fix GSNBouncerSignature test * change gsn txfee * initialize development provider only once * update RelayHub interface * adapt to new IRelayHub.withdraw * update @openzeppelin/gsn-helpers * update relayhub singleton address * fix helper name * set up gsn provider for coverage too * lint * Revert "set up gsn provider for coverage too" This reverts commit 8a7b5be5f9. * remove unused code * add gsn provider to coverage * move truffle contract options back out * increase gas limit for coverage * remove unreachable code * add more gas for GSNContext test * fix test suite name * rename GSNBouncerBase internal API * remove onlyRelayHub modifier * add explicit inheritance * remove redundant event * update name of bouncers error codes enums * add basic docs page for gsn contracts * make gsn directory all caps * add changelog entry * lint * enable test run to fail in coverage		6 years ago
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GSN	Initial GSN support (beta) (#1844)	6 years ago
access	migrate content to format for new docs site	6 years ago
crowdsale	Silence false positive warning on preValidatePurchase (#1857)	6 years ago
cryptography	migrate content to format for new docs site	6 years ago
drafts	Add @openzeppelin/contracts as alternative package name (#1840)	6 years ago
examples	Simplification of SampleToken (#1734)	6 years ago
introspection	Squash merge of branch docs-v2.x into master	6 years ago
lifecycle	merge api docs changes	6 years ago
math	Functions in SafeMath contract overloaded to accept custom error messages (#1828)	6 years ago
mocks	Initial GSN support (beta) (#1844)	6 years ago
ownership	Squash merge of branch docs-v2.x into master	6 years ago
payment	migrate content to format for new docs site	6 years ago
token	Typo in ERC20.sol (#1873)	6 years ago
utils	Update ReentrancyGuard.sol (#1862)	6 years ago
package.json	Add @openzeppelin/contracts as alternative package name (#1840)	6 years ago