Add hot reloading of redirect config files
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This commit is contained in:
parent
20af5172b4
commit
028067b62a
3 changed files with 215 additions and 23 deletions
146
Cargo.lock
generated
146
Cargo.lock
generated
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@ -380,6 +380,21 @@ dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "crossbeam-channel"
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version = "0.5.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ab3db02a9c5b5121e1e42fbdb1aeb65f5e02624cc58c43f2884c6ccac0b82f95"
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dependencies = [
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"crossbeam-utils",
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]
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[[package]]
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name = "crossbeam-utils"
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version = "0.8.19"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "248e3bacc7dc6baa3b21e405ee045c3047101a49145e7e9eca583ab4c2ca5345"
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[[package]]
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name = "crypto-common"
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version = "0.1.6"
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@ -450,6 +465,7 @@ dependencies = [
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"actix-web",
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"confy",
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"log",
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"notify",
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"serde",
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"systemd-journal-logger",
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]
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@ -479,6 +495,18 @@ dependencies = [
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"windows-sys 0.52.0",
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]
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[[package]]
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name = "filetime"
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version = "0.2.23"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1ee447700ac8aa0b2f2bd7bc4462ad686ba06baa6727ac149a2d6277f0d240fd"
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dependencies = [
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"cfg-if",
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"libc",
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"redox_syscall",
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"windows-sys 0.52.0",
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]
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[[package]]
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name = "flate2"
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version = "1.0.28"
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@ -504,6 +532,15 @@ dependencies = [
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"percent-encoding",
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]
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[[package]]
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name = "fsevent-sys"
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version = "4.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "76ee7a02da4d231650c7cea31349b889be2f45ddb3ef3032d2ec8185f6313fd2"
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dependencies = [
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"libc",
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]
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[[package]]
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name = "futures-core"
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version = "0.3.30"
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@ -629,6 +666,26 @@ dependencies = [
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"hashbrown",
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]
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[[package]]
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name = "inotify"
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version = "0.9.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f8069d3ec154eb856955c1c0fbffefbf5f3c40a104ec912d4797314c1801abff"
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dependencies = [
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"bitflags 1.3.2",
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"inotify-sys",
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"libc",
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]
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[[package]]
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name = "inotify-sys"
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version = "0.1.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e05c02b5e89bff3b946cedeca278abc628fe811e604f027c45a8aa3cf793d0eb"
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dependencies = [
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"libc",
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]
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[[package]]
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name = "itoa"
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version = "1.0.11"
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@ -644,6 +701,26 @@ dependencies = [
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"libc",
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]
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[[package]]
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name = "kqueue"
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version = "1.0.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7447f1ca1b7b563588a205fe93dea8df60fd981423a768bc1c0ded35ed147d0c"
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dependencies = [
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"kqueue-sys",
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"libc",
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]
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[[package]]
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name = "kqueue-sys"
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version = "1.0.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ed9625ffda8729b85e45cf04090035ac368927b8cebc34898e7c120f52e4838b"
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dependencies = [
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"bitflags 1.3.2",
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"libc",
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]
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[[package]]
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name = "language-tags"
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version = "0.3.2"
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@ -741,6 +818,25 @@ dependencies = [
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"windows-sys 0.48.0",
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]
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[[package]]
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name = "notify"
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version = "6.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6205bd8bb1e454ad2e27422015fb5e4f2bcc7e08fa8f27058670d208324a4d2d"
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dependencies = [
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"bitflags 2.5.0",
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"crossbeam-channel",
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"filetime",
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"fsevent-sys",
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"inotify",
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"kqueue",
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"libc",
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"log",
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"mio",
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"walkdir",
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"windows-sys 0.48.0",
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]
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[[package]]
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name = "num-conv"
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version = "0.1.0"
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@ -964,6 +1060,15 @@ version = "1.0.17"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e86697c916019a8588c99b5fac3cead74ec0b4b819707a682fd4d23fa0ce1ba1"
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[[package]]
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name = "same-file"
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version = "1.0.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
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dependencies = [
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"winapi-util",
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]
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[[package]]
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name = "scopeguard"
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version = "1.2.0"
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@ -1306,12 +1411,53 @@ version = "0.9.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
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[[package]]
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name = "walkdir"
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version = "2.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "29790946404f91d9c5d06f9874efddea1dc06c5efe94541a7d6863108e3a5e4b"
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dependencies = [
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"same-file",
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"winapi-util",
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]
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[[package]]
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name = "wasi"
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version = "0.11.0+wasi-snapshot-preview1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
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[[package]]
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name = "winapi"
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version = "0.3.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
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dependencies = [
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"winapi-i686-pc-windows-gnu",
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"winapi-x86_64-pc-windows-gnu",
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]
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[[package]]
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name = "winapi-i686-pc-windows-gnu"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
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[[package]]
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name = "winapi-util"
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version = "0.1.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f29e6f9198ba0d26b4c9f07dbe6f9ed633e1f3d5b8b414090084349e46a52596"
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dependencies = [
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"winapi",
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]
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[[package]]
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name = "winapi-x86_64-pc-windows-gnu"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
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[[package]]
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name = "windows-sys"
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version = "0.48.0"
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@ -31,5 +31,6 @@ systemd-units = { enable = false }
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actix-web = "4"
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confy = "0.6"
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log = "0.4"
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notify = "6"
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systemd-journal-logger = "2"
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serde = { version = "1.0.197", features = ["derive"] }
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91
src/main.rs
91
src/main.rs
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@ -2,8 +2,11 @@ use std::error::Error;
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use std::fs;
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use std::net::{IpAddr, Ipv6Addr};
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use std::path::{Path, PathBuf};
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use std::sync::RwLock;
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use actix_web::{web, App, HttpResponse, HttpServer, get, Responder, HttpRequest};
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use log::{LevelFilter};
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use notify::{Event, EventKind, RecursiveMode, Watcher};
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use notify::event::{AccessKind, AccessMode};
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use systemd_journal_logger::{connected_to_journal, JournalLog};
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use serde::{Deserialize, Serialize};
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@ -68,10 +71,11 @@ struct Config {
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}
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impl Config {
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pub fn load() -> Result<Self, Box<dyn Error>> {
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pub fn load() -> Result<(Self, Vec<PathBuf>), Box<dyn Error>> {
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// get list of home directories
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// query every home directory for a config file (just attempt a load, an empty config is perfectly fine)
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// merge all configs into one
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let mut directories: Vec<PathBuf> = vec![];
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let mut user_config = UserConfig::default();
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let root_contents = match fs::read_dir("/") {
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Ok(contents) => { contents }
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@ -86,7 +90,10 @@ impl Config {
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if path.is_dir() {
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match path.display().to_string().as_str() {
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"/root" => {
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let mut root_configs = Self::load_user_config_directory(path);
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let (mut root_configs, root_path) = Self::load_user_config_directory(path);
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if let Some(root_directory) = root_path {
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directories.push(Path::new(root_directory.as_str()).to_path_buf());
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}
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user_config.domain_configs.append(&mut root_configs.domain_configs);
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},
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"/home" => {
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@ -95,7 +102,10 @@ impl Config {
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home_contents.for_each(|home_folder| {
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let home_folder_path = home_folder.expect("Unexpected Error while Unwrapping the listed Home Dir Entry").path();
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if home_folder_path.is_dir() {
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let mut user_folder_configs = Self::load_user_config_directory(home_folder_path);
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let (mut user_folder_configs, user_folder_path) = Self::load_user_config_directory(home_folder_path);
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if let Some(user_folder_directory) = user_folder_path {
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directories.push(Path::new(user_folder_directory.as_str()).to_path_buf());
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}
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user_config.domain_configs.append(&mut user_folder_configs.domain_configs);
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}
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})
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@ -132,11 +142,12 @@ impl Config {
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match confy::load_path(path.clone()) {
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Ok(data) => {
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let msg = format!("Using {}", path);
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directories.push(system_path.to_path_buf());
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info!(msg);
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Ok(Config {
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Ok((Config {
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user: user_config,
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system: data,
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})
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}, directories))
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},
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Err(e) => {
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error!(e);
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@ -145,26 +156,30 @@ impl Config {
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}
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}
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fn load_user_config_directory(path: PathBuf) -> UserConfig {
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let config_path = format!("{}/.config/{}/domains.toml", path.display(), env!("CARGO_PKG_NAME"));
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match confy::load_path(config_path) {
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Ok(data) => data,
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fn load_user_config_directory(path: PathBuf) -> (UserConfig, Option<String>) {
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let config_path = format!("{}/.config/{}", path.display(), env!("CARGO_PKG_NAME"));
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match confy::load_path(config_path.clone() + "/domains.toml") {
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Ok(data) => {
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let msg = format!("Using {config_path}/domains.toml");
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info!(msg);
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(data, Some(config_path))
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},
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Err(e) => {
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match &e {
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confy::ConfyError::GeneralLoadError(os_error) => {
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if os_error.raw_os_error() == Some(13) {
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let msg = format!("Missing read permissions for {}, skipping", path.display().to_string().as_str());
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warn!(msg);
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UserConfig::default()
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(UserConfig::default(), None)
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}
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else {
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error!(e);
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UserConfig::default()
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(UserConfig::default(), None)
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}
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},
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_ => {
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error!(e);
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UserConfig::default()
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(UserConfig::default(), None)
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}
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}
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}
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@ -173,24 +188,28 @@ impl Config {
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}
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#[actix_web::main]
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async fn main() -> std::io::Result<()> {
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async fn main() -> notify::Result<()> {
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JournalLog::new().expect("Systemd-Logger crate error").install().expect("Systemd-Logger crate error");
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log::set_max_level(LevelFilter::Info);
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let config = Config::load().expect("Error while loading or generating the config");
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let (config, directories) = Config::load().expect("Error while loading or generating the config");
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let loaded_redirects_msg = format!("Loaded {} redirects from user config", config.user.domain_configs.len());
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info!(loaded_redirects_msg);
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let app_data = web::Data::new(RwLock::new(config));
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let app_data_clone = web::Data::clone(&app_data);
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let mut server = HttpServer::new(move || {
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App::new()
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.app_data(web::Data::new(config.user.domain_configs.clone()))
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.app_data(web::Data::clone(&app_data_clone))
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.service(status)
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.service(handle)
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.service(do_redirect)
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});
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for address in config.system.addresses.iter() {
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for port in config.system.ports.iter() {
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for address in app_data.read().expect("Read Lock Failed").system.addresses.iter() {
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let ports = app_data.read().expect("Read Lock Failed").system.ports.clone();
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for port in ports.iter() {
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let msg = if address.is_ipv6() {
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format!("Listening on [{address}]:{port}")
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}
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@ -201,14 +220,39 @@ async fn main() -> std::io::Result<()> {
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server = server.bind((*address, *port))?
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}
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}
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server.run().await
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let mut watcher = notify::recommended_watcher(move |res: Result<Event, notify::Error>| {
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match res {
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Ok(event) => {
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if event.kind == EventKind::Access(AccessKind::Close(AccessMode::Write)) {
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let (config, _) = Config::load().expect("Error while loading or generating the config");
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let mut tmp_app_data = app_data.write().expect("Write Lock Failed");
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tmp_app_data.system = config.system;
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tmp_app_data.user = config.user;
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info!("Reloading Configuration");
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}
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},
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Err(e) => {
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let msg = format!("Error watching files: {e}");
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error!(msg);
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}
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}
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})?;
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for directory in directories.iter() {
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watcher.watch(directory, RecursiveMode::NonRecursive)?;
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}
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let _ = server.run().await;
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Ok(())
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}
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#[get("/")]
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async fn handle(redirects: web::Data<Vec<DomainLinkConfig>>, request: HttpRequest) -> impl Responder {
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async fn do_redirect(data: web::Data<RwLock<Config>>, request: HttpRequest) -> impl Responder {
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let redirects = &data.read().expect("Read Lock Failed").user.domain_configs;
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if let Some(host_raw) = request.headers().get("host") {
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let host = host_raw.to_str().expect("host conversion to string should never fail");
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println!("{host}");
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for redirect in redirects.iter() {
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if redirect.domains.contains(&host.to_owned()) {
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return HttpResponse::PermanentRedirect().insert_header(("location", redirect.target.to_string().as_str())).finish();
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@ -221,7 +265,8 @@ async fn handle(redirects: web::Data<Vec<DomainLinkConfig>>, request: HttpReques
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}
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#[get("/status")]
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async fn status(redirects: web::Data<Vec<DomainLinkConfig>>) -> impl Responder {
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async fn status(data: web::Data<RwLock<Config>>) -> impl Responder {
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let redirects = &data.read().expect("Read Lock Failed").user.domain_configs;
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let mut body_msg = format!("Redirects Loaded: {}", redirects.len());
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for redirect in redirects.iter() {
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body_msg += "\n[";
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