Kaede Akino
e457e9af98
Detach managed sessions when native mobile windows are discarded, retain live reopen references, and fence ordinary startup commands by input and session generation. Handle noexec helpers, isolate tmux discovery locale, and count only verified live contexts against the journal limit. Move actual shell execution coverage into the hostless framework suite. Validation: 76 focused macOS tests passed; iOS multiplexer regressions passed with the inherited hosted-test artwork failure still present.
90 lines
4.6 KiB
Swift
90 lines
4.6 KiB
Swift
import Foundation
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import TermindApplication
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import TermindDomain
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nonisolated enum RemoteTerminalDraft {
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static func command(
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context: TerminalShellContext, terminal: String, helper: String?,
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clientIdentity: String?, request: UUID, replacement: String?, original: String? = nil,
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charset: RemoteCharset = .utf8, target: RemoteMultiplexerDraftTarget? = nil
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) throws -> String {
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let identity = context.identity
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guard context.promptReady, ["bash", "zsh", "fish"].contains(context.shell),
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identity.shellInstance.hasPrefix("ctx."),
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identity.shellInstance.utf8.allSatisfy({
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(48...57).contains($0) || (65...90).contains($0) || (97...122).contains($0) || $0 == 46
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}), replacement?.utf8.count ?? 0 <= 4096, replacement?.contains("\0") != true,
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original?.utf8.count ?? 0 <= 4096, original?.contains("\0") != true
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else { throw TerminalRuntimeError.staleContext }
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let root: String
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let trigger: String
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if let target {
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guard RemoteMultiplexerRegistry.dialect(.init(rawValue: identity.backend)) != nil else {
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throw TerminalRuntimeError.staleContext
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}
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root = target.root
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trigger = target.trigger
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} else if identity.backend == "tmux" {
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let target = try RemoteTmuxRuntimeDialect.draftTarget(
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context: context, terminal: terminal, clientIdentity: clientIdentity, replacing: replacement != nil)
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root = target.root
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trigger = target.trigger
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} else {
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guard identity.backend == "shell", let helper else { throw TerminalRuntimeError.staleContext }
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root = "helper=\(try RemoteMultiplexerCommands.quote(helper))"
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// The worker sends the negotiated widget key after this request is installed.
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trigger = "printf 'READY\\n'"
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}
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let bytes = try RemoteCharsetStreamConverter.encode(replacement ?? "", charset: charset)
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guard bytes.count <= 4096 else { throw TerminalRuntimeError.staleContext }
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let encoded = bytes.map { String(format: "%%%02X", $0) }.joined()
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let baselineBytes = try original.map { try RemoteCharsetStreamConverter.encode($0, charset: charset) }
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guard baselineBytes?.count ?? 0 <= 4096 else { throw TerminalRuntimeError.staleContext }
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let baseline = baselineBytes?.map { String(format: "%%%02X", $0) }.joined() ?? "-"
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return """
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umask 077
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\(root)
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case "$helper" in /tmp/termind-shell.*) ;; *) exit 79 ;; esac
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suffix=${helper#/tmp/termind-shell.}
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case "$suffix" in ''|*[!a-zA-Z0-9]*) exit 79 ;; esac
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dir="$helper/\(identity.shellInstance)"
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[ -d "$dir" ] && [ ! -L "$dir" ] || exit 79
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IFS='|' read -r tag seq ready cwd < "$dir/state" || exit 79
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[ "$seq" = '\(context.sequence)' ] && [ "$ready" = 1 ] || exit 79
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printf '%s|%s|%s|%s|%s|%s\\n' '\(request.uuidString)' '\(context.sequence)' \
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'\(replacement == nil ? "read" : "replace")' '\(encoded)' "$(( $(date +%s) + 2 ))" '\(baseline)' > "$dir/request.tmp"
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mv "$dir/request.tmp" "$dir/request"
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\(trigger)
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"""
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}
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static func resultCommand(context: TerminalShellContext, helper: String?, request: UUID) throws -> String {
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let root: String
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if context.identity.backend == "tmux" {
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guard let session = context.identity.session.split(separator: ":").first else {
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throw TerminalRuntimeError.staleContext
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}
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root = """
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\(RemoteTmuxCommands.executionPreamble)
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helper=$(tmux show-environment -t \(try RemoteMultiplexerCommands.quote(String(session))) TERMIND_TMUX_HELPERS) || exit 79
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helper=${helper#TERMIND_TMUX_HELPERS=}
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"""
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} else {
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guard let helper else { throw TerminalRuntimeError.staleContext }
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root = "helper=\(try RemoteMultiplexerCommands.quote(helper))"
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}
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return """
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\(root)
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case "$helper" in /tmp/termind-shell.*) ;; *) exit 79 ;; esac
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suffix=${helper#/tmp/termind-shell.}
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case "$suffix" in ''|*[!a-zA-Z0-9]*) exit 79 ;; esac
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file="$helper/\(context.identity.shellInstance)/journal"
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for attempt in 1 2 3 4 5 6 7 8 9 10; do
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if [ -f "$file" ] && grep -F '|draft|' "$file" | grep -q -F '|\(request.uuidString)'; then cat "$file"; exit 0; fi
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sleep 0.1
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done
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exit 79
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"""
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}
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}
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