ZDDC
ea385b5366
ZDDC — Zero Day Document Control. A file-naming convention plus five single-file HTML tools (archive, transmittal, classifier, mdedit, landing) and an optional Go HTTP server (zddc-server) with ACL and a virtual archive index. Self-contained, offline-capable, dependency-free. See README.md for an overview, AGENTS.md and ARCHITECTURE.md for the build/release/architecture detail, bootstrap/README.md for the two-level deployment install pattern, and zddc/README.md for the HTTP server.
80 lines
1.9 KiB
Go
80 lines
1.9 KiB
Go
package archive
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import (
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"strings"
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)
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// Resolve parses the .archive request filename and returns the server-relative
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// redirect target URL (no leading slash).
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//
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// Supported URL filename patterns (after stripping .html suffix):
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// - trackingNumber → highest base revision of trackingNumber
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// - trackingNumber_rev → base revision file for rev
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// - trackingNumber_rev+C1 → modifier file (C1, B1, N1, Q1)
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//
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// Returns ("", false) if the filename cannot be parsed or no match exists.
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func Resolve(idx *Index, filename string) (string, bool) {
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// Strip .html suffix
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stem := strings.TrimSuffix(filename, ".html")
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if stem == filename {
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// No .html suffix — not a valid archive request
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return "", false
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}
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idx.mu.RLock()
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defer idx.mu.RUnlock()
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// Try to split off revision part (last _ segment)
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lastUnderscore := strings.LastIndex(stem, "_")
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if lastUnderscore < 0 {
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// No underscore — treat entire stem as tracking number
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tracking := stem
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te, ok := idx.ByTracking[tracking]
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if !ok || te.HighestBaseRev == "" {
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return "", false
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}
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re, ok := te.ByRevision[te.HighestBaseRev]
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if !ok || re.BasePath == "" {
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return "", false
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}
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return re.BasePath, true
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}
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tracking := stem[:lastUnderscore]
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revPart := stem[lastUnderscore+1:]
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// Split revPart on "+" to separate baseRev from modifier
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plusIdx := strings.Index(revPart, "+")
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var baseRev, modifier string
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if plusIdx < 0 {
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baseRev = revPart
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modifier = ""
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} else {
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baseRev = revPart[:plusIdx]
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modifier = revPart[plusIdx+1:]
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}
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te, ok := idx.ByTracking[tracking]
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if !ok {
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return "", false
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}
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re, ok := te.ByRevision[baseRev]
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if !ok {
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return "", false
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}
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if modifier == "" {
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if re.BasePath == "" {
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return "", false
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}
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return re.BasePath, true
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}
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// Modifier lookup
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path, ok := re.Modifiers[modifier]
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if !ok {
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return "", false
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}
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return path, true
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}
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