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pallet-treasury: Ensure we respect max_amount for spend across batch calls#13468
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…tch calls When calling `spend` the origin defines the `max_amount` of tokens it is allowed to spend. The problem is that someone can send a `batch(spend, spend)` to circumvent this restriction as we don't check across different calls that the `max_amount` is respected. This pull request fixes this behavior by introducing a so-called dispatch context. This dispatch context is created once per outer most `dispatch` call. For more information see the docs in this pr. The treasury then uses this dispatch context to attach information about already spent funds per `max_amount` (we assume that each origin has a different `max_amount` configured). So, a `batch(spend, spend)` is now checked to stay inside the allowed spending bounds. Fixes: #13167
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…tch calls (paritytech#13468) * `pallet-treasury`: Ensure we respect `max_amount` for spend across batch calls When calling `spend` the origin defines the `max_amount` of tokens it is allowed to spend. The problem is that someone can send a `batch(spend, spend)` to circumvent this restriction as we don't check across different calls that the `max_amount` is respected. This pull request fixes this behavior by introducing a so-called dispatch context. This dispatch context is created once per outer most `dispatch` call. For more information see the docs in this pr. The treasury then uses this dispatch context to attach information about already spent funds per `max_amount` (we assume that each origin has a different `max_amount` configured). So, a `batch(spend, spend)` is now checked to stay inside the allowed spending bounds. Fixes: paritytech#13167 * Import `Box` for wasm * FMT
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…tch calls (paritytech#13468) * `pallet-treasury`: Ensure we respect `max_amount` for spend across batch calls When calling `spend` the origin defines the `max_amount` of tokens it is allowed to spend. The problem is that someone can send a `batch(spend, spend)` to circumvent this restriction as we don't check across different calls that the `max_amount` is respected. This pull request fixes this behavior by introducing a so-called dispatch context. This dispatch context is created once per outer most `dispatch` call. For more information see the docs in this pr. The treasury then uses this dispatch context to attach information about already spent funds per `max_amount` (we assume that each origin has a different `max_amount` configured). So, a `batch(spend, spend)` is now checked to stay inside the allowed spending bounds. Fixes: paritytech#13167 * Import `Box` for wasm * FMT
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When calling
spendthe origin defines themax_amountof tokens it is allowed to spend. The problem is that someone can send abatch(spend, spend)to circumvent this restriction as we don't check across different calls that themax_amountis respected. This pull request fixes this behavior by introducing a so-called dispatch context. This dispatch context is created once per outer mostdispatchcall. For more information see the docs in this pr. The treasury then uses this dispatch context to attach information about already spent funds permax_amount(we assume that each origin has a differentmax_amountconfigured). So, abatch(spend, spend)is now checked to stay inside the allowed spending bounds.Fixes: #13167