feat: add bounded filesystem projection server
This commit is contained in:
Generated
+139
@@ -2,18 +2,42 @@
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# It is not intended for manual editing.
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version = 4
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|
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[[package]]
|
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name = "ascii"
|
||||
version = "1.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d92bec98840b8f03a5ff5413de5293bfcd8bf96467cf5452609f939ec6f5de16"
|
||||
|
||||
[[package]]
|
||||
name = "base64"
|
||||
version = "0.22.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
|
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|
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[[package]]
|
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name = "bitflags"
|
||||
version = "2.13.2"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3ded4057c258ba199e2d26386d3af3780957ecaee6c4ef4041c6b4b8b97c0b06"
|
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|
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[[package]]
|
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name = "bytes"
|
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version = "1.12.1"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fc652a48c352aef3ea3aed32080501cf3ef6ed5da78602a020c991775b0aff04"
|
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|
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[[package]]
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name = "cfg-if"
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version = "1.0.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4e7648175b45a9a48536d676f68d918270699102aa8dab5496df06904c914600"
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|
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[[package]]
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name = "chunked_transfer"
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version = "1.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6e4de3bc4ea267985becf712dc6d9eed8b04c953b3fcfb339ebc87acd9804901"
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[[package]]
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name = "displaydoc"
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version = "0.2.7"
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@@ -31,6 +55,22 @@ version = "1.0.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
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[[package]]
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name = "errno"
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version = "0.3.14"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
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dependencies = [
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"libc",
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"windows-sys",
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]
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[[package]]
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name = "fastrand"
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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 = "da7c62ceae207dd37ea5b845da6a0696c799f85e97da1ab5b7910be3c1c80223"
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[[package]]
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name = "form_urlencoded"
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version = "1.2.2"
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@@ -40,6 +80,17 @@ dependencies = [
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"percent-encoding",
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]
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[[package]]
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name = "getrandom"
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version = "0.4.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "300e883d756b2e4ec94e02791f39b04b522276138852cfc41d9fb7e904106099"
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dependencies = [
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"cfg-if",
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"libc",
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"r-efi",
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]
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[[package]]
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name = "glob"
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version = "0.3.4"
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@@ -62,6 +113,12 @@ dependencies = [
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"itoa",
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]
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[[package]]
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name = "httpdate"
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version = "1.0.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "df3b46402a9d5adb4c86a0cf463f42e19994e3ee891101b1841f30a545cb49a9"
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[[package]]
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name = "icu_collections"
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version = "2.3.0"
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@@ -182,18 +239,42 @@ version = "1.0.18"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"
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[[package]]
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name = "libc"
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version = "0.2.189"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3eaf3ede3fee6db1a4c2ee091bf8a8b4dccdc6d17f656fb07896ee72867612f2"
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|
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[[package]]
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name = "linux-raw-sys"
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version = "0.12.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "32a66949e030da00e8c7d4434b251670a91556f4144941d37452769c25d58a53"
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[[package]]
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name = "litemap"
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version = "0.8.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "47d9d19d1d6efa0109d2f65ff4c85cddd50bd572e5a00127ab10987290bcefae"
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[[package]]
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name = "log"
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version = "0.4.34"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f9f8bd3e56ce4dfc153cf470fffbfa98c7620958b312ca5c3a4b8d5181fd13c6"
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[[package]]
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name = "memchr"
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version = "2.8.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "cf8baf1c55e62ffcace7a9f06f4bd9cd3f0c4beb022d3b367256b91b87513d98"
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[[package]]
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name = "once_cell"
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version = "1.21.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9f7c3e4beb33f85d45ae3e3a1792185706c8e16d043238c593331cc7cd313b50"
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[[package]]
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name = "percent-encoding"
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version = "2.3.2"
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@@ -227,6 +308,25 @@ dependencies = [
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"proc-macro2",
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]
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[[package]]
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name = "r-efi"
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version = "6.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
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[[package]]
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name = "rustix"
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version = "1.1.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "891efababe418670775f199f0d233d84843c227a0949a883ce15b37c78d6629d"
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dependencies = [
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"bitflags",
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"errno",
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"libc",
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"linux-raw-sys",
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"windows-sys",
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]
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[[package]]
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name = "serde"
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version = "1.0.229"
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@@ -329,6 +429,19 @@ version = "1.0.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "876fef147edbcbddc8ac5cbbba92c7b86519e314e86638596c09673b2ed01e7f"
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[[package]]
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name = "tempfile"
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version = "3.27.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "32497e9a4c7b38532efcdebeef879707aa9f794296a4f0244f6f69e9bc8574bd"
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dependencies = [
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"fastrand",
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"getrandom",
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"once_cell",
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"rustix",
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"windows-sys",
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]
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[[package]]
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name = "termcolor"
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version = "1.4.1"
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@@ -338,6 +451,18 @@ dependencies = [
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"winapi-util",
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]
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[[package]]
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name = "tiny_http"
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version = "0.12.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "389915df6413a2e74fb181895f933386023c71110878cd0825588928e64cdc82"
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dependencies = [
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"ascii",
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"chunked_transfer",
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"httpdate",
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"log",
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]
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[[package]]
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name = "tinystr"
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version = "0.8.4"
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@@ -456,6 +581,20 @@ version = "1.0.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "23b97319f7b8343df12cc98938e5c3eb436064524c8d2b4e30a1d3a36eecdf81"
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[[package]]
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name = "wip-fs-server"
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version = "0.1.0"
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dependencies = [
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"http",
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"rustix",
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"tempfile",
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"tiny_http",
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"wip-host",
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"wip-https",
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"wip-interface",
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"wip-protocol",
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]
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[[package]]
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name = "wip-host"
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version = "0.1.0"
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@@ -5,12 +5,18 @@ Rust building blocks for the Web Interface Protocol (WIP).
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The repository is a resolver-3 virtual Cargo workspace whose packages all live
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under `crates/*`. It provides a transport-independent protocol model, the
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standard framework-independent WIP over HTTPS v1 binding, a Rust
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interface-authoring facade, a request-scoped host runtime, and a private
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public-API conformance consumer. The repository root is not itself a package.
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interface-authoring facade, a request-scoped host runtime, a bounded Linux
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filesystem projection server, and a private public-API conformance consumer. The
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repository root is not itself a package.
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## Crate graph and responsibilities
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```text
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wip-fs-server (request-time filesystem projection and loopback listener)
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├── wip-https standard routes/codecs/envelopes/batching
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├── wip-host request-scoped publication and dispatch
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└── wip-interface macro-generated filesystem capabilities
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wip-public-api-example (workspace-only executable, integration tests, doctest)
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├── wip-protocol logical declarations, values, calls, and validation
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├── wip-https standard HTTPS v1 routes, JSON codecs, envelopes, and batching
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@@ -29,7 +35,8 @@ wip-public-api-example (workspace-only executable, integration tests, doctest)
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| `wip-https` | Standard HTTPS v1 endpoint/route derivation, UTF-8 JSON codecs, direct success bodies, error/status classification, and retrieval batches. | HTTP I/O, TLS termination, authentication schemes, server frameworks, filesystem projection, or client presentation/cache policy. |
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| `wip-interface` | The public `WipType`/`interface` authoring API, Rust-to-protocol codecs, generated descriptors, and typed implementation dispatch. | Object publication, backend lifetime, or transport policy. |
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| `wip-interface-macros` | Procedural-macro expansion used by `wip-interface`. It is not an application dependency. | A supported direct user API. |
|
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| `wip-host` | Opaque interface registration, explicit object membership, validator checks, and interface-qualified dispatch against one host-owned instance. | Backend atomicity, global object lookup, or network serving. |
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| `wip-host` | Opaque interface registration, explicit object membership, validator checks, interface-qualified dispatch against one host-owned instance, and descriptor-guided argument decoding inside that same resolution boundary. | Backend atomicity, global object lookup, or network serving. |
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| `wip-fs-server` | Linux directory-handle-confined request-time projection, bounded BFS trees and file operations, standard `wip-https` dispatch/batch handling, and a loopback HTTP binary for TLS-proxy or explicit development use. | A new wire profile, implicit symlink following, non-loopback cleartext, authentication policy, or filesystem-wide preregistration. |
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| `wip-public-api-example` | An independently compiled consumer of the protocol, authoring, and host public crates. Its DTOs and traits are application-owned; its implementation and backend handle remain host-private. | Reusable library API or a production server. |
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The boundary is intentional: protocol types describe what can cross a
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@@ -238,6 +245,17 @@ rolled back. Without that proof, post-invocation failures remain
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comparison and backend commit atomic and return a validator describing the state
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that becomes committed.
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## Filesystem projection server
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[`crates/wip-fs-server`](crates/wip-fs-server) contains the practical server
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binary and its full security model, configuration, curl walkthrough, and
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resource/failure semantics. It resolves every object from current filesystem
|
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state, uses pinned directory-relative handles without following symlinks, omits
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non-UTF-8 backend names, performs bounded breadth-first tree discovery, and
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publishes validator-protected replacement only in explicit read-write mode.
|
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The built-in cleartext listener is loopback-only: production HTTPS is explicitly
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delegated to a reverse proxy, while local plain HTTP requires an opt-in flag.
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## Validation
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Enter the dev shell and run the acceptance commands exactly:
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@@ -0,0 +1,20 @@
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[package]
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name = "wip-fs-server"
|
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version = "0.1.0"
|
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edition = "2024"
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description = "Request-time filesystem projection server for WIP over HTTPS"
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license = "MIT OR Apache-2.0"
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readme = "README.md"
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publish = false
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[dependencies]
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http = "1"
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rustix = { version = "1.1", features = ["fs"] }
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tiny_http = "0.12"
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wip-host = { path = "../wip-host" }
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wip-https = { path = "../wip-https" }
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wip-interface = { path = "../wip-interface" }
|
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wip-protocol = { path = "../wip-protocol" }
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[dev-dependencies]
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tempfile = "3"
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@@ -0,0 +1,136 @@
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# wip-fs-server
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`wip-fs-server` projects one configured Linux filesystem directory onto WIP
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Worldspace `/` at request time. It does not register the filesystem contents or
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keep one object instance per entry. It uses `wip-host` for publication and typed
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operation dispatch and uses the standard `wip-https` routes, JSON codecs,
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envelopes, batching, and HTTP status mapping.
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## Security model
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- The effective root is opened once as a directory capability. Every request is
|
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resolved segment-by-segment with directory-relative, `O_NOFOLLOW` handles.
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- Symlinks are projected as links and are never followed. Their stored target is
|
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available only through the `SymlinkInspect.read_link` application operation.
|
||||
- Regular files, directories, symlinks, and unsupported entry types have distinct
|
||||
public descriptions and capability sets.
|
||||
- WIP names are Unicode. Linux names that are not valid UTF-8 are deliberately
|
||||
not published; valid UTF-8 names map byte-for-byte and therefore cannot collide.
|
||||
- No object `ref` is issued. This avoids claiming representation identity for
|
||||
hard links or path-specific names. Regular files and symlinks receive an opaque
|
||||
validator containing filesystem identity plus protected metadata; replacing a
|
||||
path therefore does not preserve its validator.
|
||||
- Protocol metadata and errors never contain the backend absolute path. Startup
|
||||
prints only the explicitly configured effective root and security-sensitive
|
||||
modes.
|
||||
- The built-in listener is cleartext and loopback-only. Production deployments
|
||||
must pass `--behind-tls-proxy` and terminate HTTPS at a trusted reverse proxy.
|
||||
Plain development HTTP requires the explicit `--development-http` flag.
|
||||
|
||||
The implementation currently targets Linux because it uses `O_PATH`,
|
||||
directory-relative descriptor traversal, and `/proc/self/fd` to reopen the same
|
||||
pinned backend object without resolving the untrusted Worldspace path twice.
|
||||
|
||||
## Run
|
||||
|
||||
Read-only behind a TLS-terminating reverse proxy:
|
||||
|
||||
```console
|
||||
cargo run -p wip-fs-server -- \
|
||||
--root /srv/public-files \
|
||||
--listen 127.0.0.1:8443 \
|
||||
--base-path /wip \
|
||||
--behind-tls-proxy
|
||||
```
|
||||
|
||||
Local development with the write capability deliberately enabled:
|
||||
|
||||
```console
|
||||
cargo run -p wip-fs-server -- \
|
||||
--root ./example-files \
|
||||
--listen 127.0.0.1:8080 \
|
||||
--base-path /wip \
|
||||
--development-http \
|
||||
--read-write
|
||||
```
|
||||
|
||||
The server reports the effective root, `ReadOnly`/`ReadWrite` mode, transport
|
||||
mode, endpoint, and actual listen address. It does not enumerate the root.
|
||||
|
||||
## Standard interactions
|
||||
|
||||
The following examples use development HTTP for readability. The JSON is the
|
||||
standard `wip-https` profile; validators and operation `Bytes` are base64 body
|
||||
fields, never `ETag` or `If-Match` headers.
|
||||
|
||||
Fetch root:
|
||||
|
||||
```console
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||||
curl -sS -X POST http://127.0.0.1:8080/wip/v1/fetch \
|
||||
-H 'Content-Type: application/json' -H 'Accept: application/json' \
|
||||
--data '{"path":"/"}'
|
||||
```
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||||
|
||||
Fetch a bounded tree (the root counts toward `limit`):
|
||||
|
||||
```console
|
||||
curl -sS -X POST http://127.0.0.1:8080/wip/v1/fetch_tree \
|
||||
-H 'Content-Type: application/json' -H 'Accept: application/json' \
|
||||
--data '{"path":"/","depth":2,"limit":100}'
|
||||
```
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||||
|
||||
A regular-file fetch returns the opaque read interface reference and an object
|
||||
validator. Retrieve that descriptor with:
|
||||
|
||||
```console
|
||||
curl -sS -X POST http://127.0.0.1:8080/wip/v1/fetch_interface \
|
||||
-H 'Content-Type: application/json' -H 'Accept: application/json' \
|
||||
--data '{"interface":"<read-interface-from-fetch>"}'
|
||||
```
|
||||
|
||||
Then call a bounded range read:
|
||||
|
||||
```console
|
||||
curl -sS -X POST http://127.0.0.1:8080/wip/v1/call_operation \
|
||||
-H 'Content-Type: application/json' -H 'Accept: application/json' \
|
||||
--data '{
|
||||
"target":{"path":"/notes.txt","validator":"<base64-validator>"},
|
||||
"interface":{"reference":"<read-interface>"},
|
||||
"operation":"read",
|
||||
"arguments":{"offset":0,"length":4096}
|
||||
}'
|
||||
```
|
||||
|
||||
In `--read-write` mode a second regular-file interface declares `replace`.
|
||||
Writes require the current object validator and return the post-write validator:
|
||||
|
||||
```console
|
||||
curl -sS -X POST http://127.0.0.1:8080/wip/v1/call_operation \
|
||||
-H 'Content-Type: application/json' -H 'Accept: application/json' \
|
||||
--data '{
|
||||
"target":{"path":"/notes.txt","validator":"<base64-validator>"},
|
||||
"interface":{"reference":"<write-interface>"},
|
||||
"operation":"replace",
|
||||
"arguments":{"contents":"dXBkYXRlZA=="}
|
||||
}'
|
||||
```
|
||||
|
||||
`fetch`, `fetch_tree`, and `fetch_interface` can also be combined through the
|
||||
standard `POST /wip/v1/batch` route. `call_operation` is never batchable.
|
||||
|
||||
## Resource and failure behavior
|
||||
|
||||
`ResourceLimits` bounds request/response bytes, JSON nesting, batch items, file
|
||||
read/write bytes, tree depth/node count, pinned handles, concurrent requests, and
|
||||
a cooperative deadline. Tree traversal is breadth-first and opens only requested
|
||||
entries. Once a limit or depth boundary is reached it reads only far enough to
|
||||
prove whether an additional visible child exists, so `truncated` is true only
|
||||
when something was actually omitted. I/O failure and cancellation remain errors,
|
||||
not clean exhaustion.
|
||||
|
||||
Whole-file replacement compares the request validator against the identity and
|
||||
state of the same pinned file handle used for the write. Failures before mutation
|
||||
carry a `NotCommitted` guarantee and map to `Internal` or
|
||||
`ResourceLimitExceeded`; a failure after truncation/write begins maps to
|
||||
`OperationOutcomeUnknown`. The server and Clients do not automatically retry
|
||||
side-effecting operations.
|
||||
@@ -0,0 +1,43 @@
|
||||
//! Filesystem capability interfaces published by the projection.
|
||||
|
||||
use wip_interface as wip;
|
||||
|
||||
/// Bounded reads from a regular file.
|
||||
#[wip::interface]
|
||||
pub trait FileRead {
|
||||
/// Reads bytes from the current regular file.
|
||||
///
|
||||
/// # Returns
|
||||
/// At most the configured read limit, beginning at `offset`.
|
||||
fn read(
|
||||
&self,
|
||||
/// Byte offset; omitted means zero.
|
||||
offset: Option<u64>,
|
||||
/// Requested byte count; omitted means the rest of the file.
|
||||
length: Option<u64>,
|
||||
) -> wip::OperationResult<wip::Bytes>;
|
||||
}
|
||||
|
||||
/// Inspection operations for a symbolic link itself.
|
||||
#[wip::interface]
|
||||
pub trait SymlinkInspect {
|
||||
/// Reads the link payload without following it.
|
||||
///
|
||||
/// # Returns
|
||||
/// The platform path bytes stored in the symbolic link.
|
||||
fn read_link(&self) -> wip::OperationResult<wip::Bytes>;
|
||||
}
|
||||
|
||||
/// Explicitly enabled mutation of a regular file.
|
||||
#[wip::interface]
|
||||
pub trait FileWrite {
|
||||
/// Replaces the current regular file contents through its pinned handle.
|
||||
///
|
||||
/// # Returns
|
||||
/// Unit after the new bytes have been written and synchronized.
|
||||
fn replace(
|
||||
&self,
|
||||
/// Complete replacement contents.
|
||||
contents: wip::Bytes,
|
||||
) -> wip::OperationResult<()>;
|
||||
}
|
||||
@@ -0,0 +1,197 @@
|
||||
//! Request-time filesystem projection served through the standard WIP HTTPS binding.
|
||||
//!
|
||||
//! This crate deliberately keeps the boundaries visible:
|
||||
//!
|
||||
//! - [`wip_protocol`] owns logical requests and responses;
|
||||
//! - [`wip_host`] owns object publication, validators, and typed dispatch;
|
||||
//! - [`wip_https`] owns routes, JSON, envelopes, batching, and status mapping;
|
||||
//! - this crate owns the filesystem capability boundary and the real HTTP listener.
|
||||
//!
|
||||
//! TLS is terminated by an explicitly configured reverse proxy. The built-in
|
||||
//! listener accepts cleartext only on loopback, either behind that proxy or when
|
||||
//! [`TransportSecurity::DevelopmentHttp`] is deliberately selected.
|
||||
|
||||
#![deny(missing_docs)]
|
||||
|
||||
mod interfaces;
|
||||
mod projection;
|
||||
mod server;
|
||||
|
||||
use std::net::{IpAddr, Ipv4Addr, SocketAddr};
|
||||
use std::path::{Path, PathBuf};
|
||||
use std::time::Duration;
|
||||
|
||||
pub use interfaces::{FileRead, FileWrite, SymlinkInspect};
|
||||
pub use server::{BoundServer, ServerBuildError, WipFsServer};
|
||||
|
||||
/// Filesystem capabilities published by regular files.
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
||||
pub enum AccessMode {
|
||||
/// Publish bounded reads only.
|
||||
ReadOnly,
|
||||
/// Also publish validator-protected whole-file replacement.
|
||||
ReadWrite,
|
||||
}
|
||||
|
||||
/// How HTTPS is provided for the endpoint.
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
||||
pub enum TransportSecurity {
|
||||
/// A trusted reverse proxy terminates TLS and forwards to the loopback listener.
|
||||
ReverseProxyTls,
|
||||
/// Cleartext HTTP is deliberately enabled for local development only.
|
||||
DevelopmentHttp,
|
||||
}
|
||||
|
||||
/// Bounded resource policy applied by the HTTP adapter and filesystem provider.
|
||||
#[derive(Debug, Clone, Copy)]
|
||||
pub struct ResourceLimits {
|
||||
/// Standard JSON, body-size, nesting, and batch limits.
|
||||
pub wire: wip_https::Limits,
|
||||
/// Maximum bytes returned by one file read.
|
||||
pub max_file_read_bytes: usize,
|
||||
/// Maximum bytes accepted by one file replacement.
|
||||
pub max_file_write_bytes: usize,
|
||||
/// Maximum accepted `fetch_tree` depth.
|
||||
pub max_tree_depth: u32,
|
||||
/// Maximum accepted `fetch_tree` node count, including its root.
|
||||
pub max_tree_nodes: u32,
|
||||
/// Maximum simultaneously pinned projected filesystem handles.
|
||||
pub max_open_handles: usize,
|
||||
/// Maximum requests executing concurrently.
|
||||
pub max_concurrent_requests: usize,
|
||||
/// Deadline applied to request dispatch and cooperative filesystem work.
|
||||
pub request_timeout: Duration,
|
||||
}
|
||||
|
||||
impl Default for ResourceLimits {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
wire: wip_https::Limits::new(256 * 1024, 2 * 1024 * 1024, 64, 64)
|
||||
.expect("default wire limits are nonzero"),
|
||||
max_file_read_bytes: 1024 * 1024,
|
||||
max_file_write_bytes: 1024 * 1024,
|
||||
max_tree_depth: 32,
|
||||
max_tree_nodes: 1024,
|
||||
max_open_handles: 2048,
|
||||
max_concurrent_requests: 32,
|
||||
request_timeout: Duration::from_secs(30),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Complete listener and projection configuration.
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct ServerConfig {
|
||||
/// Filesystem directory projected as Worldspace `/`.
|
||||
pub root: PathBuf,
|
||||
/// Loopback socket used by the built-in cleartext listener.
|
||||
pub listen: SocketAddr,
|
||||
/// URL path prefix below which standard `v1/*` routes are mounted.
|
||||
pub endpoint_base_path: String,
|
||||
/// Read-only or explicit read-write publication mode.
|
||||
pub access: AccessMode,
|
||||
/// TLS termination or explicit development HTTP policy.
|
||||
pub transport_security: TransportSecurity,
|
||||
/// Request, operation, traversal, and concurrency bounds.
|
||||
pub limits: ResourceLimits,
|
||||
}
|
||||
|
||||
impl ServerConfig {
|
||||
/// Builds a secure-by-default configuration for `root`.
|
||||
///
|
||||
/// The listener defaults to an ephemeral loopback port, read-only access,
|
||||
/// and TLS termination delegated to a reverse proxy.
|
||||
#[must_use]
|
||||
pub fn for_root(root: impl Into<PathBuf>) -> Self {
|
||||
Self {
|
||||
root: root.into(),
|
||||
listen: SocketAddr::new(IpAddr::V4(Ipv4Addr::LOCALHOST), 0),
|
||||
endpoint_base_path: "/wip".into(),
|
||||
access: AccessMode::ReadOnly,
|
||||
transport_security: TransportSecurity::ReverseProxyTls,
|
||||
limits: ResourceLimits::default(),
|
||||
}
|
||||
}
|
||||
|
||||
pub(crate) fn validate(&self) -> Result<(), ConfigError> {
|
||||
if !self.listen.ip().is_loopback() {
|
||||
return Err(ConfigError::NonLoopbackCleartext);
|
||||
}
|
||||
if !valid_base_path(&self.endpoint_base_path) {
|
||||
return Err(ConfigError::InvalidBasePath);
|
||||
}
|
||||
if self.limits.max_file_read_bytes == 0
|
||||
|| self.limits.max_file_write_bytes == 0
|
||||
|| self.limits.max_tree_nodes == 0
|
||||
|| self.limits.max_open_handles == 0
|
||||
|| self.limits.max_concurrent_requests == 0
|
||||
|| self.limits.request_timeout.is_zero()
|
||||
{
|
||||
return Err(ConfigError::ZeroLimit);
|
||||
}
|
||||
if self.limits.max_open_handles < self.limits.max_tree_nodes as usize {
|
||||
return Err(ConfigError::InsufficientHandles);
|
||||
}
|
||||
if self.limits.wire.max_response_bytes() < 512 {
|
||||
return Err(ConfigError::ResponseLimitTooSmall);
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub(crate) fn effective_root(&self) -> Result<PathBuf, std::io::Error> {
|
||||
std::fs::canonicalize(&self.root)
|
||||
}
|
||||
|
||||
pub(crate) fn endpoint(&self) -> Result<wip_https::Endpoint, ConfigError> {
|
||||
let endpoint = format!("https://localhost{}", self.endpoint_base_path);
|
||||
wip_https::Endpoint::parse(&endpoint).map_err(|_| ConfigError::InvalidBasePath)
|
||||
}
|
||||
}
|
||||
|
||||
/// Invalid server configuration.
|
||||
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
|
||||
pub enum ConfigError {
|
||||
/// The cleartext built-in listener was exposed beyond loopback.
|
||||
NonLoopbackCleartext,
|
||||
/// The endpoint prefix is not an absolute canonical URL path.
|
||||
InvalidBasePath,
|
||||
/// A resource limit is zero.
|
||||
ZeroLimit,
|
||||
/// Tree nodes could exhaust the configured handle ceiling by construction.
|
||||
InsufficientHandles,
|
||||
/// The response limit cannot reliably carry a bounded protocol error envelope.
|
||||
ResponseLimitTooSmall,
|
||||
}
|
||||
|
||||
impl std::fmt::Display for ConfigError {
|
||||
fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
formatter.write_str(match self {
|
||||
Self::NonLoopbackCleartext => "the built-in cleartext listener must bind to loopback",
|
||||
Self::InvalidBasePath => {
|
||||
"endpoint base path must be absolute, canonical, and query-free"
|
||||
}
|
||||
Self::ZeroLimit => "all resource limits and the request timeout must be nonzero",
|
||||
Self::InsufficientHandles => "max_open_handles must cover max_tree_nodes",
|
||||
Self::ResponseLimitTooSmall => "max_response_bytes must be at least 512",
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
impl std::error::Error for ConfigError {}
|
||||
|
||||
fn valid_base_path(path: &str) -> bool {
|
||||
path.starts_with('/')
|
||||
&& !path.contains('?')
|
||||
&& !path.contains('#')
|
||||
&& !path.contains("//")
|
||||
&& !path
|
||||
.split('/')
|
||||
.any(|segment| segment == "." || segment == "..")
|
||||
&& (path == "/" || !path.ends_with('/'))
|
||||
}
|
||||
|
||||
/// Returns whether `root` is an existing directory suitable for projection.
|
||||
#[must_use]
|
||||
pub fn is_projectable_root(root: &Path) -> bool {
|
||||
root.is_dir()
|
||||
}
|
||||
@@ -0,0 +1,83 @@
|
||||
use std::error::Error;
|
||||
use std::net::SocketAddr;
|
||||
use std::path::PathBuf;
|
||||
|
||||
use wip_fs_server::{AccessMode, ServerConfig, TransportSecurity, WipFsServer};
|
||||
|
||||
fn main() -> Result<(), Box<dyn Error>> {
|
||||
let mut root: Option<PathBuf> = None;
|
||||
let mut listen: SocketAddr = "127.0.0.1:8443".parse()?;
|
||||
let mut base_path = "/wip".to_owned();
|
||||
let mut access = AccessMode::ReadOnly;
|
||||
let mut security = None;
|
||||
let mut arguments = std::env::args().skip(1);
|
||||
while let Some(argument) = arguments.next() {
|
||||
match argument.as_str() {
|
||||
"--root" => root = Some(PathBuf::from(required_value(&mut arguments, "--root")?)),
|
||||
"--listen" => listen = required_value(&mut arguments, "--listen")?.parse()?,
|
||||
"--base-path" => base_path = required_value(&mut arguments, "--base-path")?,
|
||||
"--read-write" => access = AccessMode::ReadWrite,
|
||||
"--development-http" => {
|
||||
set_security(&mut security, TransportSecurity::DevelopmentHttp)?
|
||||
}
|
||||
"--behind-tls-proxy" => {
|
||||
set_security(&mut security, TransportSecurity::ReverseProxyTls)?
|
||||
}
|
||||
"--help" | "-h" => {
|
||||
print_help();
|
||||
return Ok(());
|
||||
}
|
||||
unknown => return Err(format!("unknown argument `{unknown}`; use --help").into()),
|
||||
}
|
||||
}
|
||||
|
||||
let root = root.ok_or("--root is required")?;
|
||||
let transport_security =
|
||||
security.ok_or("select exactly one of --behind-tls-proxy or --development-http")?;
|
||||
let mut config = ServerConfig::for_root(root);
|
||||
config.listen = listen;
|
||||
config.endpoint_base_path = base_path;
|
||||
config.access = access;
|
||||
config.transport_security = transport_security;
|
||||
|
||||
let server = WipFsServer::new(config)?;
|
||||
let effective_root = server.effective_root().to_owned();
|
||||
let endpoint = server.endpoint().clone();
|
||||
let bound = server.bind()?;
|
||||
eprintln!(
|
||||
"wip-fs-server root={} access={access:?} transport={transport_security:?} endpoint={} listen={}",
|
||||
effective_root.display(),
|
||||
endpoint,
|
||||
bound.local_addr()
|
||||
);
|
||||
bound.serve()?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn required_value(
|
||||
arguments: &mut impl Iterator<Item = String>,
|
||||
option: &str,
|
||||
) -> Result<String, Box<dyn Error>> {
|
||||
arguments
|
||||
.next()
|
||||
.ok_or_else(|| format!("{option} requires a value").into())
|
||||
}
|
||||
|
||||
fn set_security(
|
||||
security: &mut Option<TransportSecurity>,
|
||||
value: TransportSecurity,
|
||||
) -> Result<(), Box<dyn Error>> {
|
||||
if security.replace(value).is_some() {
|
||||
Err("select only one transport-security mode".into())
|
||||
} else {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
fn print_help() {
|
||||
println!(
|
||||
"Usage: wip-fs-server --root PATH [--listen 127.0.0.1:8443] \\\n [--base-path /wip] [--read-write] \\\n (--behind-tls-proxy | --development-http)\n\n\
|
||||
The built-in listener is cleartext and loopback-only. In production, \
|
||||
select --behind-tls-proxy and terminate HTTPS at a trusted reverse proxy."
|
||||
);
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,523 @@
|
||||
use std::io::Read;
|
||||
use std::net::SocketAddr;
|
||||
use std::sync::Arc;
|
||||
use std::sync::atomic::{AtomicBool, Ordering};
|
||||
use std::thread;
|
||||
use std::time::{Duration, Instant};
|
||||
|
||||
use http::{Request, Response, StatusCode};
|
||||
use wip_host::{ExecutionContext, ObjectProvider};
|
||||
use wip_https::{
|
||||
BatchRequestKind, BatchResponse, BatchResponseItem, BatchSuccess, CodecError, EncodeHttpError,
|
||||
Endpoint, RequestMetadataError, ResourceLimitKind, Route, decode_batch_request,
|
||||
decode_call_operation_metadata, decode_fetch_interface_request, decode_fetch_request,
|
||||
decode_fetch_tree_request, encode_batch_error_response,
|
||||
encode_batch_resource_limit_error_response, encode_batch_response,
|
||||
encode_call_operation_response, encode_fetch_interface_response, encode_fetch_response,
|
||||
encode_fetch_tree_response, encode_protocol_error_response,
|
||||
encode_resource_limit_error_response, validate_http_request,
|
||||
};
|
||||
use wip_protocol::{ProtocolError, ProtocolErrorCode, ProtocolInteraction};
|
||||
|
||||
use crate::projection::Projection;
|
||||
use crate::{ConfigError, ServerConfig};
|
||||
|
||||
/// Filesystem projection and framework-neutral standard WIP request adapter.
|
||||
pub struct WipFsServer {
|
||||
config: ServerConfig,
|
||||
endpoint: Endpoint,
|
||||
effective_root: std::path::PathBuf,
|
||||
projection: Arc<Projection>,
|
||||
}
|
||||
|
||||
impl WipFsServer {
|
||||
/// Validates configuration and opens the configured directory capability.
|
||||
pub fn new(config: ServerConfig) -> Result<Self, ServerBuildError> {
|
||||
config.validate()?;
|
||||
let effective_root = config.effective_root()?;
|
||||
let endpoint = config.endpoint()?;
|
||||
let projection = Projection::open(&effective_root, config.access, config.limits)?;
|
||||
Ok(Self {
|
||||
config,
|
||||
endpoint,
|
||||
effective_root,
|
||||
projection: Arc::new(projection),
|
||||
})
|
||||
}
|
||||
|
||||
/// Returns the canonical effective filesystem root opened by the server.
|
||||
#[must_use]
|
||||
pub fn effective_root(&self) -> &std::path::Path {
|
||||
&self.effective_root
|
||||
}
|
||||
|
||||
/// Returns the configured transport endpoint prefix.
|
||||
#[must_use]
|
||||
pub fn endpoint(&self) -> &Endpoint {
|
||||
&self.endpoint
|
||||
}
|
||||
|
||||
/// Handles one already-buffered HTTP request with the standard `wip-https` codecs.
|
||||
///
|
||||
/// Listener integrations must enforce the same body limit while collecting bytes.
|
||||
#[must_use]
|
||||
pub fn handle_http(&self, request: Request<Vec<u8>>) -> Response<Vec<u8>> {
|
||||
let Some(route) = self.route(request.uri().path()) else {
|
||||
return empty_response(StatusCode::NOT_FOUND);
|
||||
};
|
||||
if let Err(error) = validate_http_request(&self.endpoint, route, &request) {
|
||||
return self.metadata_error(route, error);
|
||||
}
|
||||
let context = ExecutionContext::new()
|
||||
.with_deadline(Instant::now() + self.config.limits.request_timeout)
|
||||
.with_resource_budget(u64::from(self.config.limits.max_tree_nodes));
|
||||
match route {
|
||||
Route::Fetch => self.fetch(request.body(), &context),
|
||||
Route::FetchTree => self.fetch_tree(request.body(), &context),
|
||||
Route::FetchInterface => self.fetch_interface(request.body()),
|
||||
Route::CallOperation => self.call_operation(request.body(), &context),
|
||||
Route::Batch => self.batch(request.body(), &context),
|
||||
}
|
||||
}
|
||||
|
||||
/// Binds the built-in bounded loopback HTTP listener.
|
||||
///
|
||||
/// The listener is cleartext by design. Configuration must explicitly state
|
||||
/// whether TLS is terminated by a reverse proxy or development HTTP is in use.
|
||||
pub fn bind(self) -> Result<BoundServer, ServerBuildError> {
|
||||
let server = tiny_http::Server::http(self.config.listen)
|
||||
.map_err(|error| ServerBuildError::Listener(error.to_string()))?;
|
||||
let local_addr = server
|
||||
.server_addr()
|
||||
.to_ip()
|
||||
.ok_or_else(|| ServerBuildError::Listener("expected an IP listener".into()))?;
|
||||
Ok(BoundServer {
|
||||
local_addr,
|
||||
service: Arc::new(self),
|
||||
listener: Arc::new(server),
|
||||
})
|
||||
}
|
||||
|
||||
fn route(&self, path: &str) -> Option<Route> {
|
||||
[
|
||||
Route::Fetch,
|
||||
Route::FetchTree,
|
||||
Route::FetchInterface,
|
||||
Route::CallOperation,
|
||||
Route::Batch,
|
||||
]
|
||||
.into_iter()
|
||||
.find(|route| self.endpoint.route(*route).path() == path)
|
||||
}
|
||||
|
||||
fn fetch(&self, body: &[u8], context: &ExecutionContext) -> Response<Vec<u8>> {
|
||||
let request = match decode_fetch_request(body, self.config.limits.wire) {
|
||||
Ok(request) => request,
|
||||
Err(error) => return self.codec_error(ProtocolInteraction::Fetch, error),
|
||||
};
|
||||
match self
|
||||
.projection
|
||||
.fetch_with_context(context, &request.path)
|
||||
.map_err(|error| error.protocol_error())
|
||||
{
|
||||
Ok(object) => encode_fetch_response(&request, &object, self.config.limits.wire)
|
||||
.unwrap_or_else(|error| self.read_encode_error(ProtocolInteraction::Fetch, error)),
|
||||
Err(error) => self.protocol_error(ProtocolInteraction::Fetch, &error, None),
|
||||
}
|
||||
}
|
||||
|
||||
fn fetch_tree(&self, body: &[u8], context: &ExecutionContext) -> Response<Vec<u8>> {
|
||||
let request = match decode_fetch_tree_request(body, self.config.limits.wire) {
|
||||
Ok(request) => request,
|
||||
Err(error) => return self.codec_error(ProtocolInteraction::FetchTree, error),
|
||||
};
|
||||
match self.projection.fetch_tree(context, &request) {
|
||||
Ok(tree) => encode_fetch_tree_response(&request, &tree, self.config.limits.wire)
|
||||
.unwrap_or_else(|error| {
|
||||
self.read_encode_error(ProtocolInteraction::FetchTree, error)
|
||||
}),
|
||||
Err(error) => self.protocol_error(ProtocolInteraction::FetchTree, &error, None),
|
||||
}
|
||||
}
|
||||
|
||||
fn fetch_interface(&self, body: &[u8]) -> Response<Vec<u8>> {
|
||||
let request = match decode_fetch_interface_request(body, self.config.limits.wire) {
|
||||
Ok(request) => request,
|
||||
Err(error) => return self.codec_error(ProtocolInteraction::FetchInterface, error),
|
||||
};
|
||||
match self.projection.fetch_interface(&request) {
|
||||
Ok(interface) => {
|
||||
encode_fetch_interface_response(&request, &interface, self.config.limits.wire)
|
||||
.unwrap_or_else(|error| {
|
||||
self.read_encode_error(ProtocolInteraction::FetchInterface, error)
|
||||
})
|
||||
}
|
||||
Err(error) => self.protocol_error(ProtocolInteraction::FetchInterface, &error, None),
|
||||
}
|
||||
}
|
||||
|
||||
fn call_operation(&self, body: &[u8], context: &ExecutionContext) -> Response<Vec<u8>> {
|
||||
let metadata = match decode_call_operation_metadata(body, self.config.limits.wire) {
|
||||
Ok(metadata) => metadata,
|
||||
Err(error) => return self.codec_error(ProtocolInteraction::CallOperation, error),
|
||||
};
|
||||
let decoded = std::sync::Mutex::new(None);
|
||||
let execution = self.projection.call_operation_with_context_and_decoder(
|
||||
context,
|
||||
metadata.target.clone(),
|
||||
metadata.interface.clone(),
|
||||
metadata.operation.clone(),
|
||||
|descriptor| {
|
||||
let request = metadata.decode_request(body, descriptor, self.config.limits.wire)?;
|
||||
let arguments = request.arguments.clone();
|
||||
*decoded.lock().unwrap_or_else(|error| error.into_inner()) =
|
||||
Some((request, descriptor.clone()));
|
||||
Ok::<_, CodecError>(arguments)
|
||||
},
|
||||
);
|
||||
match execution.map_err(|error| error.protocol_error()) {
|
||||
Ok(result) => {
|
||||
let Some((request, descriptor)) = decoded
|
||||
.into_inner()
|
||||
.unwrap_or_else(|error| error.into_inner())
|
||||
else {
|
||||
return self.protocol_error(
|
||||
ProtocolInteraction::CallOperation,
|
||||
&ProtocolError {
|
||||
code: ProtocolErrorCode::OperationOutcomeUnknown,
|
||||
message: "operation completed without response metadata".into(),
|
||||
},
|
||||
None,
|
||||
);
|
||||
};
|
||||
encode_call_operation_response(
|
||||
&request,
|
||||
&descriptor,
|
||||
&result,
|
||||
self.config.limits.wire,
|
||||
)
|
||||
.unwrap_or_else(|_| {
|
||||
// Dispatch succeeded. A transport/result encoding failure cannot
|
||||
// prove that a write did not commit.
|
||||
let error = ProtocolError {
|
||||
code: ProtocolErrorCode::OperationOutcomeUnknown,
|
||||
message: "operation completed but its response could not be encoded".into(),
|
||||
};
|
||||
self.protocol_error(ProtocolInteraction::CallOperation, &error, None)
|
||||
})
|
||||
}
|
||||
Err(error) => self.protocol_error(ProtocolInteraction::CallOperation, &error, None),
|
||||
}
|
||||
}
|
||||
|
||||
fn batch(&self, body: &[u8], context: &ExecutionContext) -> Response<Vec<u8>> {
|
||||
let request = match decode_batch_request(body, self.config.limits.wire) {
|
||||
Ok(request) => request,
|
||||
Err(error) => return self.batch_codec_error(error),
|
||||
};
|
||||
let responses = request
|
||||
.requests
|
||||
.iter()
|
||||
.map(|item| {
|
||||
let outcome = match &item.request {
|
||||
BatchRequestKind::Fetch(request) => self
|
||||
.projection
|
||||
.fetch_with_context(context, &request.path)
|
||||
.map(BatchSuccess::Fetch)
|
||||
.map_err(|error| error.protocol_error()),
|
||||
BatchRequestKind::FetchTree(request) => self
|
||||
.projection
|
||||
.fetch_tree(context, request)
|
||||
.map(BatchSuccess::FetchTree),
|
||||
BatchRequestKind::FetchInterface(request) => self
|
||||
.projection
|
||||
.fetch_interface(request)
|
||||
.map(BatchSuccess::FetchInterface),
|
||||
BatchRequestKind::Invalid { error, .. } => Err(error.clone()),
|
||||
};
|
||||
BatchResponseItem {
|
||||
id: item.id.clone(),
|
||||
outcome,
|
||||
}
|
||||
})
|
||||
.collect();
|
||||
let response = BatchResponse { responses };
|
||||
encode_batch_response(&request, &response, self.config.limits.wire).unwrap_or_else(
|
||||
|error| match error {
|
||||
EncodeHttpError::Codec(codec) => self.batch_codec_error(codec),
|
||||
EncodeHttpError::Http(_) => self.batch_top_error(&internal_error(), None),
|
||||
},
|
||||
)
|
||||
}
|
||||
|
||||
fn metadata_error(&self, route: Route, error: RequestMetadataError) -> Response<Vec<u8>> {
|
||||
match error {
|
||||
RequestMetadataError::InvalidRequest(_) => self.protocol_error(
|
||||
interaction(route),
|
||||
&ProtocolError {
|
||||
code: ProtocolErrorCode::InvalidRequest,
|
||||
message: "invalid HTTP request metadata".into(),
|
||||
},
|
||||
None,
|
||||
),
|
||||
RequestMetadataError::UnsupportedMediaType => {
|
||||
empty_response(StatusCode::UNSUPPORTED_MEDIA_TYPE)
|
||||
}
|
||||
RequestMetadataError::NotAcceptable => empty_response(StatusCode::NOT_ACCEPTABLE),
|
||||
}
|
||||
}
|
||||
|
||||
fn codec_error(
|
||||
&self,
|
||||
interaction: ProtocolInteraction,
|
||||
error: CodecError,
|
||||
) -> Response<Vec<u8>> {
|
||||
if let Some(kind) = error.resource_limit_kind() {
|
||||
self.protocol_error(interaction, &resource_error(), Some(kind))
|
||||
} else {
|
||||
self.protocol_error(
|
||||
interaction,
|
||||
&ProtocolError {
|
||||
code: ProtocolErrorCode::InvalidRequest,
|
||||
message: "malformed WIP request".into(),
|
||||
},
|
||||
None,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
fn batch_codec_error(&self, error: CodecError) -> Response<Vec<u8>> {
|
||||
if let Some(kind) = error.resource_limit_kind() {
|
||||
self.batch_top_error(&resource_error(), Some(kind))
|
||||
} else {
|
||||
self.batch_top_error(
|
||||
&ProtocolError {
|
||||
code: ProtocolErrorCode::InvalidRequest,
|
||||
message: "malformed WIP batch request".into(),
|
||||
},
|
||||
None,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
fn read_encode_error(
|
||||
&self,
|
||||
interaction: ProtocolInteraction,
|
||||
error: EncodeHttpError,
|
||||
) -> Response<Vec<u8>> {
|
||||
match error {
|
||||
EncodeHttpError::Codec(codec) if codec.resource_limit_kind().is_some() => {
|
||||
self.protocol_error(interaction, &resource_error(), codec.resource_limit_kind())
|
||||
}
|
||||
_ => self.protocol_error(interaction, &internal_error(), None),
|
||||
}
|
||||
}
|
||||
|
||||
fn protocol_error(
|
||||
&self,
|
||||
interaction: ProtocolInteraction,
|
||||
error: &ProtocolError,
|
||||
resource_kind: Option<ResourceLimitKind>,
|
||||
) -> Response<Vec<u8>> {
|
||||
let encoded = match resource_kind {
|
||||
Some(kind) => encode_resource_limit_error_response(
|
||||
interaction,
|
||||
error,
|
||||
kind,
|
||||
self.config.limits.wire,
|
||||
),
|
||||
None => encode_protocol_error_response(interaction, error, self.config.limits.wire),
|
||||
};
|
||||
encoded.unwrap_or_else(|_| empty_response(StatusCode::INTERNAL_SERVER_ERROR))
|
||||
}
|
||||
|
||||
fn batch_top_error(
|
||||
&self,
|
||||
error: &ProtocolError,
|
||||
resource_kind: Option<ResourceLimitKind>,
|
||||
) -> Response<Vec<u8>> {
|
||||
let encoded = match resource_kind {
|
||||
Some(kind) => {
|
||||
encode_batch_resource_limit_error_response(error, kind, self.config.limits.wire)
|
||||
}
|
||||
None => encode_batch_error_response(error, self.config.limits.wire),
|
||||
};
|
||||
encoded.unwrap_or_else(|_| empty_response(StatusCode::INTERNAL_SERVER_ERROR))
|
||||
}
|
||||
}
|
||||
|
||||
/// Bound real HTTP listener for a [`WipFsServer`].
|
||||
pub struct BoundServer {
|
||||
local_addr: SocketAddr,
|
||||
service: Arc<WipFsServer>,
|
||||
listener: Arc<tiny_http::Server>,
|
||||
}
|
||||
|
||||
impl BoundServer {
|
||||
/// Returns the actual bound loopback address, including an assigned port.
|
||||
#[must_use]
|
||||
pub fn local_addr(&self) -> SocketAddr {
|
||||
self.local_addr
|
||||
}
|
||||
|
||||
/// Serves requests with a fixed worker count until `shutdown` becomes true.
|
||||
pub fn serve_until(&self, shutdown: Arc<AtomicBool>) -> Result<(), std::io::Error> {
|
||||
let mut workers = Vec::with_capacity(self.service.config.limits.max_concurrent_requests);
|
||||
for _ in 0..self.service.config.limits.max_concurrent_requests {
|
||||
let listener = Arc::clone(&self.listener);
|
||||
let service = Arc::clone(&self.service);
|
||||
let shutdown = Arc::clone(&shutdown);
|
||||
workers.push(thread::spawn(move || {
|
||||
while !shutdown.load(Ordering::Acquire) {
|
||||
match listener.recv_timeout(Duration::from_millis(25)) {
|
||||
Ok(Some(request)) => serve_request(&service, request),
|
||||
Ok(None) => {}
|
||||
Err(error) => return Err(error),
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}));
|
||||
}
|
||||
for worker in workers {
|
||||
worker
|
||||
.join()
|
||||
.map_err(|_| std::io::Error::other("HTTP worker panicked"))??;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Serves until the process is terminated.
|
||||
pub fn serve(&self) -> Result<(), std::io::Error> {
|
||||
self.serve_until(Arc::new(AtomicBool::new(false)))
|
||||
}
|
||||
}
|
||||
|
||||
fn serve_request(service: &WipFsServer, mut request: tiny_http::Request) {
|
||||
let maximum = service.config.limits.wire.max_request_bytes();
|
||||
let mut body = Vec::new();
|
||||
let read_result = request
|
||||
.as_reader()
|
||||
.take(maximum.saturating_add(1) as u64)
|
||||
.read_to_end(&mut body);
|
||||
let route = service.route(request.url().split('?').next().unwrap_or_default());
|
||||
let response = if read_result.is_err() {
|
||||
empty_response(StatusCode::BAD_REQUEST)
|
||||
} else if body.len() > maximum {
|
||||
route.map_or_else(
|
||||
|| empty_response(StatusCode::PAYLOAD_TOO_LARGE),
|
||||
|route| {
|
||||
if route == Route::Batch {
|
||||
service.batch_top_error(
|
||||
&resource_error(),
|
||||
Some(ResourceLimitKind::RepresentationBytes),
|
||||
)
|
||||
} else {
|
||||
service.protocol_error(
|
||||
interaction(route),
|
||||
&resource_error(),
|
||||
Some(ResourceLimitKind::RepresentationBytes),
|
||||
)
|
||||
}
|
||||
},
|
||||
)
|
||||
} else {
|
||||
let mut builder = Request::builder()
|
||||
.method(request.method().as_str())
|
||||
.uri(request.url());
|
||||
for header in request.headers() {
|
||||
if let (Ok(name), Ok(value)) = (
|
||||
http::header::HeaderName::from_bytes(header.field.as_str().as_bytes()),
|
||||
http::HeaderValue::from_bytes(header.value.as_bytes()),
|
||||
) {
|
||||
builder = builder.header(name, value);
|
||||
}
|
||||
}
|
||||
match builder.body(body) {
|
||||
Ok(request) => service.handle_http(request),
|
||||
Err(_) => empty_response(StatusCode::BAD_REQUEST),
|
||||
}
|
||||
};
|
||||
let status = tiny_http::StatusCode(response.status().as_u16());
|
||||
let mut outgoing =
|
||||
tiny_http::Response::from_data(response.body().clone()).with_status_code(status);
|
||||
for (name, value) in response.headers() {
|
||||
if let Ok(header) = tiny_http::Header::from_bytes(name.as_str(), value.as_bytes()) {
|
||||
outgoing.add_header(header);
|
||||
}
|
||||
}
|
||||
let _ = request.respond(outgoing);
|
||||
}
|
||||
|
||||
fn interaction(route: Route) -> ProtocolInteraction {
|
||||
match route {
|
||||
Route::Fetch => ProtocolInteraction::Fetch,
|
||||
Route::FetchTree => ProtocolInteraction::FetchTree,
|
||||
Route::FetchInterface => ProtocolInteraction::FetchInterface,
|
||||
Route::CallOperation => ProtocolInteraction::CallOperation,
|
||||
Route::Batch => ProtocolInteraction::Fetch,
|
||||
}
|
||||
}
|
||||
|
||||
fn resource_error() -> ProtocolError {
|
||||
ProtocolError {
|
||||
code: ProtocolErrorCode::ResourceLimitExceeded,
|
||||
message: "configured resource limit exceeded".into(),
|
||||
}
|
||||
}
|
||||
|
||||
fn internal_error() -> ProtocolError {
|
||||
ProtocolError {
|
||||
code: ProtocolErrorCode::Internal,
|
||||
message: "filesystem server failed".into(),
|
||||
}
|
||||
}
|
||||
|
||||
fn empty_response(status: StatusCode) -> Response<Vec<u8>> {
|
||||
Response::builder()
|
||||
.status(status)
|
||||
.body(Vec::new())
|
||||
.expect("static status builds an HTTP response")
|
||||
}
|
||||
|
||||
/// Failure while validating, opening, or binding the server.
|
||||
#[derive(Debug)]
|
||||
pub enum ServerBuildError {
|
||||
/// Configuration is unsafe or unbounded.
|
||||
Config(ConfigError),
|
||||
/// The root capability could not be opened.
|
||||
Io(std::io::Error),
|
||||
/// The listener could not be bound.
|
||||
Listener(String),
|
||||
}
|
||||
|
||||
impl std::fmt::Display for ServerBuildError {
|
||||
fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
match self {
|
||||
Self::Config(error) => write!(formatter, "invalid server configuration: {error}"),
|
||||
Self::Io(error) => write!(formatter, "filesystem root could not be opened: {error}"),
|
||||
Self::Listener(error) => write!(formatter, "HTTP listener could not be bound: {error}"),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl std::error::Error for ServerBuildError {
|
||||
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
|
||||
match self {
|
||||
Self::Config(error) => Some(error),
|
||||
Self::Io(error) => Some(error),
|
||||
Self::Listener(_) => None,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl From<ConfigError> for ServerBuildError {
|
||||
fn from(value: ConfigError) -> Self {
|
||||
Self::Config(value)
|
||||
}
|
||||
}
|
||||
|
||||
impl From<std::io::Error> for ServerBuildError {
|
||||
fn from(value: std::io::Error) -> Self {
|
||||
Self::Io(value)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,333 @@
|
||||
use std::collections::BTreeMap;
|
||||
use std::io::{Read, Write};
|
||||
use std::net::{SocketAddr, TcpStream};
|
||||
use std::sync::Arc;
|
||||
use std::sync::atomic::{AtomicBool, Ordering};
|
||||
use std::thread;
|
||||
use std::time::Duration;
|
||||
|
||||
use tempfile::tempdir;
|
||||
use wip_fs_server::{AccessMode, ServerConfig, TransportSecurity, WipFsServer};
|
||||
use wip_https::{
|
||||
BatchRequest, BatchRequestItem, BatchRequestKind, BatchResponse, BatchSuccess, DecodedResponse,
|
||||
Endpoint, JSON_CONTENT_TYPE, Route, decode_batch_request, decode_batch_response,
|
||||
decode_call_operation_response, decode_fetch_interface_response, decode_fetch_response,
|
||||
decode_fetch_tree_response, encode_batch_request, encode_call_operation_request,
|
||||
encode_fetch_interface_request, encode_fetch_request, encode_fetch_tree_request,
|
||||
};
|
||||
use wip_protocol::{
|
||||
CallOperationRequest, FetchInterfaceRequest, FetchRequest, FetchTreeRequest, InterfaceTarget,
|
||||
Target, Value,
|
||||
};
|
||||
|
||||
#[test]
|
||||
fn real_listener_serves_four_core_interactions_batch_and_write() {
|
||||
let temporary = tempdir().expect("temporary root");
|
||||
std::fs::write(temporary.path().join("hello.txt"), b"hello world").expect("write file");
|
||||
std::fs::create_dir(temporary.path().join("nested")).expect("create directory");
|
||||
|
||||
let mut config = ServerConfig::for_root(temporary.path());
|
||||
config.access = AccessMode::ReadWrite;
|
||||
config.transport_security = TransportSecurity::DevelopmentHttp;
|
||||
let limits = config.limits.wire;
|
||||
let bound = Arc::new(
|
||||
WipFsServer::new(config)
|
||||
.expect("build server")
|
||||
.bind()
|
||||
.expect("bind"),
|
||||
);
|
||||
let address = bound.local_addr();
|
||||
let shutdown = Arc::new(AtomicBool::new(false));
|
||||
let worker = {
|
||||
let bound = Arc::clone(&bound);
|
||||
let shutdown = Arc::clone(&shutdown);
|
||||
thread::spawn(move || bound.serve_until(shutdown))
|
||||
};
|
||||
let endpoint = Endpoint::parse(&format!("https://localhost:{}/wip", address.port()))
|
||||
.expect("client endpoint");
|
||||
|
||||
let file_request = FetchRequest {
|
||||
path: "/hello.txt".into(),
|
||||
};
|
||||
let response = exchange(
|
||||
address,
|
||||
encode_fetch_request(&endpoint, &file_request, limits).expect("encode fetch"),
|
||||
);
|
||||
let file =
|
||||
success(decode_fetch_response(&file_request, &response, limits).expect("decode fetch"));
|
||||
assert_eq!(file.name, "hello.txt");
|
||||
assert_eq!(file.interfaces.len(), 2);
|
||||
assert!(file.validator.is_some());
|
||||
|
||||
let tree_request = FetchTreeRequest {
|
||||
path: "/".into(),
|
||||
depth: 1,
|
||||
limit: 10,
|
||||
};
|
||||
let response = exchange(
|
||||
address,
|
||||
encode_fetch_tree_request(&endpoint, &tree_request, limits).expect("encode tree"),
|
||||
);
|
||||
let tree =
|
||||
success(decode_fetch_tree_response(&tree_request, &response, limits).expect("decode tree"));
|
||||
assert!(!tree.truncated);
|
||||
assert_eq!(tree.root.children.len(), 2);
|
||||
|
||||
let read_interface_request = FetchInterfaceRequest {
|
||||
interface: file.interfaces[0].clone(),
|
||||
};
|
||||
let response = exchange(
|
||||
address,
|
||||
encode_fetch_interface_request(&endpoint, &read_interface_request, limits)
|
||||
.expect("encode interface fetch"),
|
||||
);
|
||||
let read_interface = success(
|
||||
decode_fetch_interface_response(&read_interface_request, &response, limits)
|
||||
.expect("decode interface"),
|
||||
);
|
||||
assert_eq!(read_interface.descriptor.operations[0].name, "read");
|
||||
|
||||
let read_request = CallOperationRequest {
|
||||
target: Target {
|
||||
path: "/hello.txt".into(),
|
||||
validator: file.validator.clone(),
|
||||
},
|
||||
interface: InterfaceTarget {
|
||||
reference: file.interfaces[0].clone(),
|
||||
validator: None,
|
||||
},
|
||||
operation: "read".into(),
|
||||
arguments: BTreeMap::from([
|
||||
("offset".into(), Value::Integer(6)),
|
||||
("length".into(), Value::Integer(5)),
|
||||
]),
|
||||
};
|
||||
let response = exchange(
|
||||
address,
|
||||
encode_call_operation_request(&endpoint, &read_request, &read_interface.descriptor, limits)
|
||||
.expect("encode read call"),
|
||||
);
|
||||
let read = success(
|
||||
decode_call_operation_response(
|
||||
&read_request,
|
||||
&read_interface.descriptor,
|
||||
&response,
|
||||
limits,
|
||||
)
|
||||
.expect("decode read call"),
|
||||
);
|
||||
assert_eq!(read.result, Value::Bytes(b"world".to_vec()));
|
||||
|
||||
let batch_request = BatchRequest {
|
||||
requests: vec![
|
||||
BatchRequestItem {
|
||||
id: "root".into(),
|
||||
request: BatchRequestKind::Fetch(FetchRequest { path: "/".into() }),
|
||||
},
|
||||
BatchRequestItem {
|
||||
id: "tree".into(),
|
||||
request: BatchRequestKind::FetchTree(FetchTreeRequest {
|
||||
path: "/nested".into(),
|
||||
depth: 1,
|
||||
limit: 4,
|
||||
}),
|
||||
},
|
||||
BatchRequestItem {
|
||||
id: "interface".into(),
|
||||
request: BatchRequestKind::FetchInterface(read_interface_request.clone()),
|
||||
},
|
||||
],
|
||||
};
|
||||
let response = exchange(
|
||||
address,
|
||||
encode_batch_request(&endpoint, &batch_request, limits).expect("encode batch"),
|
||||
);
|
||||
let batch =
|
||||
success(decode_batch_response(&batch_request, &response, limits).expect("decode batch"));
|
||||
assert_batch_successes(&batch);
|
||||
|
||||
let write_interface_request = FetchInterfaceRequest {
|
||||
interface: file.interfaces[1].clone(),
|
||||
};
|
||||
let response = exchange(
|
||||
address,
|
||||
encode_fetch_interface_request(&endpoint, &write_interface_request, limits)
|
||||
.expect("encode write interface fetch"),
|
||||
);
|
||||
let write_interface = success(
|
||||
decode_fetch_interface_response(&write_interface_request, &response, limits)
|
||||
.expect("decode write interface"),
|
||||
);
|
||||
let write_request = CallOperationRequest {
|
||||
target: Target {
|
||||
path: "/hello.txt".into(),
|
||||
validator: file.validator,
|
||||
},
|
||||
interface: InterfaceTarget {
|
||||
reference: file.interfaces[1].clone(),
|
||||
validator: None,
|
||||
},
|
||||
operation: "replace".into(),
|
||||
arguments: BTreeMap::from([("contents".into(), Value::Bytes(b"updated".to_vec()))]),
|
||||
};
|
||||
let response = exchange(
|
||||
address,
|
||||
encode_call_operation_request(
|
||||
&endpoint,
|
||||
&write_request,
|
||||
&write_interface.descriptor,
|
||||
limits,
|
||||
)
|
||||
.expect("encode write call"),
|
||||
);
|
||||
let write = success(
|
||||
decode_call_operation_response(
|
||||
&write_request,
|
||||
&write_interface.descriptor,
|
||||
&response,
|
||||
limits,
|
||||
)
|
||||
.expect("decode write call"),
|
||||
);
|
||||
assert!(write.validator.is_some());
|
||||
assert_eq!(
|
||||
std::fs::read(temporary.path().join("hello.txt")).expect("read updated file"),
|
||||
b"updated"
|
||||
);
|
||||
|
||||
shutdown.store(true, Ordering::Release);
|
||||
worker
|
||||
.join()
|
||||
.expect("join listener")
|
||||
.expect("listener exits cleanly");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn batch_keeps_known_malformed_arguments_item_local() {
|
||||
let temporary = tempdir().expect("temporary root");
|
||||
let config = ServerConfig::for_root(temporary.path());
|
||||
let limits = config.limits.wire;
|
||||
let server = WipFsServer::new(config).expect("build server");
|
||||
let endpoint = Endpoint::parse("https://localhost/wip").expect("endpoint");
|
||||
let body = br#"{"requests":[{"id":"ok","method":"fetch","arguments":{"path":"/"}},{"id":"bad","method":"fetch_tree","arguments":{"path":"/","depth":"bad","limit":1}}]}"#;
|
||||
let logical = decode_batch_request(body, limits).expect("decode item-local invalid request");
|
||||
assert!(matches!(
|
||||
logical.requests[1].request,
|
||||
BatchRequestKind::Invalid { .. }
|
||||
));
|
||||
let request = http::Request::builder()
|
||||
.method(http::Method::POST)
|
||||
.uri(endpoint.route(Route::Batch).as_str())
|
||||
.header(http::header::CONTENT_TYPE, JSON_CONTENT_TYPE)
|
||||
.header(http::header::ACCEPT, "application/json")
|
||||
.body(body.to_vec())
|
||||
.expect("build request");
|
||||
let response = server.handle_http(request);
|
||||
let batch = success(
|
||||
decode_batch_response(&logical, &response, limits).expect("decode mixed batch response"),
|
||||
);
|
||||
assert!(matches!(
|
||||
batch.responses[0].outcome,
|
||||
Ok(BatchSuccess::Fetch(_))
|
||||
));
|
||||
assert!(batch.responses[1].outcome.is_err());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn call_argument_decoding_does_not_mask_missing_target() {
|
||||
let temporary = tempdir().expect("temporary root");
|
||||
let config = ServerConfig::for_root(temporary.path());
|
||||
let server = WipFsServer::new(config).expect("build server");
|
||||
let endpoint = Endpoint::parse("https://localhost/wip").expect("endpoint");
|
||||
let body = br#"{"target":{"path":"/missing"},"interface":{"reference":"unknown"},"operation":"missing","arguments":{"bytes":"not-base64"}}"#;
|
||||
let request = http::Request::builder()
|
||||
.method(http::Method::POST)
|
||||
.uri(endpoint.route(Route::CallOperation).as_str())
|
||||
.header(http::header::CONTENT_TYPE, JSON_CONTENT_TYPE)
|
||||
.header(http::header::ACCEPT, "application/json")
|
||||
.body(body.to_vec())
|
||||
.expect("build request");
|
||||
let response = server.handle_http(request);
|
||||
assert_eq!(response.status(), http::StatusCode::NOT_FOUND);
|
||||
assert!(
|
||||
std::str::from_utf8(response.body())
|
||||
.expect("UTF-8 error")
|
||||
.contains("\"not_found\"")
|
||||
);
|
||||
}
|
||||
|
||||
fn assert_batch_successes(batch: &BatchResponse) {
|
||||
assert_eq!(batch.responses.len(), 3);
|
||||
assert!(matches!(
|
||||
batch.responses[0].outcome,
|
||||
Ok(BatchSuccess::Fetch(_))
|
||||
));
|
||||
assert!(matches!(
|
||||
batch.responses[1].outcome,
|
||||
Ok(BatchSuccess::FetchTree(_))
|
||||
));
|
||||
assert!(matches!(
|
||||
batch.responses[2].outcome,
|
||||
Ok(BatchSuccess::FetchInterface(_))
|
||||
));
|
||||
}
|
||||
|
||||
fn success<T>(response: DecodedResponse<T>) -> T {
|
||||
match response {
|
||||
DecodedResponse::Success(value) => value,
|
||||
DecodedResponse::ProtocolFailure { error, .. } => panic!("protocol failure: {error}"),
|
||||
}
|
||||
}
|
||||
|
||||
fn exchange(address: SocketAddr, request: http::Request<Vec<u8>>) -> http::Response<Vec<u8>> {
|
||||
let mut stream = TcpStream::connect(address).expect("connect listener");
|
||||
stream
|
||||
.set_read_timeout(Some(Duration::from_secs(5)))
|
||||
.expect("set read timeout");
|
||||
let path = request
|
||||
.uri()
|
||||
.path_and_query()
|
||||
.map_or("/", |value| value.as_str());
|
||||
write!(
|
||||
stream,
|
||||
"{} {} HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n",
|
||||
request.method(),
|
||||
path
|
||||
)
|
||||
.expect("write request line");
|
||||
for (name, value) in request.headers() {
|
||||
write!(
|
||||
stream,
|
||||
"{}: {}\r\n",
|
||||
name,
|
||||
value.to_str().expect("ASCII request header")
|
||||
)
|
||||
.expect("write header");
|
||||
}
|
||||
write!(stream, "Content-Length: {}\r\n\r\n", request.body().len())
|
||||
.expect("write content length");
|
||||
stream.write_all(request.body()).expect("write body");
|
||||
stream.flush().expect("flush request");
|
||||
|
||||
let mut raw = Vec::new();
|
||||
stream.read_to_end(&mut raw).expect("read response");
|
||||
let split = raw
|
||||
.windows(4)
|
||||
.position(|window| window == b"\r\n\r\n")
|
||||
.expect("HTTP response header");
|
||||
let head = std::str::from_utf8(&raw[..split]).expect("UTF-8 response head");
|
||||
let mut lines = head.split("\r\n");
|
||||
let status = lines
|
||||
.next()
|
||||
.and_then(|line| line.split_whitespace().nth(1))
|
||||
.and_then(|status| status.parse::<u16>().ok())
|
||||
.expect("response status");
|
||||
let mut builder = http::Response::builder().status(status);
|
||||
for line in lines {
|
||||
let (name, value) = line.split_once(':').expect("response header");
|
||||
builder = builder.header(name, value.trim());
|
||||
}
|
||||
builder
|
||||
.body(raw[split + 4..].to_vec())
|
||||
.expect("build response")
|
||||
}
|
||||
Reference in New Issue
Block a user