From 0586599fc6020df996c4278230eeea99b9d070cb Mon Sep 17 00:00:00 2001 From: Lukasz Kasprzak Date: Tue, 28 Jul 2026 14:02:54 +0200 Subject: licence: relicense MIT -> AGPL-3.0-or-later lectio was MIT, which let anyone take it closed. The concern is not people selling it -- no licence stops that, and the AGPL does not try to -- but someone building a proprietary product on it and giving nothing back. Plain GPL would leave the obvious hole open: lectio-web is a network service, and hosting is not distribution, so a modified lectio-web could be run as a paid subscription API without ever publishing a line. AGPL section 13 closes exactly that. LICENSE is the verbatim FSF text. README carries the standard notice. Section 13 requires a modified network-reachable version to PROMINENTLY offer its source to the users interacting with it, so the offer ships with the code rather than living only in a file nobody fetches: - GET /source plain text, no template or config dependency, so it answers even when something else is broken - page footers every full page (fragments render inside one) - JSON envelope "source" / "license" - iCal header X-LECTIO-SOURCE / X-LECTIO-LICENSE The feed fields are not redundant: an /api/calendar.json consumer or an .ics subscriber never loads a page, so the footer alone would miss them. config.SourceURL is the single source of truth, and says in its comment that a fork running as a service must repoint it -- an offer that leads to someone else's code is not an offer. Tests pin all of it. This is a licence obligation, not a feature, so it should fail loudly if a later change drops it. --- internal/calfeed/json.go | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) (limited to 'internal/calfeed/json.go') diff --git a/internal/calfeed/json.go b/internal/calfeed/json.go index c1a50ca..1cb0b6f 100644 --- a/internal/calfeed/json.go +++ b/internal/calfeed/json.go @@ -1,17 +1,28 @@ package calfeed -import "encoding/json" +import ( + "encoding/json" + + "github.com/lukaszkasprzak/lectio/internal/config" +) const Schema = "lectio.calendar/1" // JSON renders days as the stable lectio.calendar/1 envelope. +// +// "source" and "license" carry the AGPL-3.0 ยง13 offer to consumers who only +// ever see this endpoint and never load the HTML UI. They are envelope +// metadata, not day data -- adding them does not change the schema version, +// since existing consumers read "days". func JSON(form string, days []DayView) ([]byte, error) { if days == nil { days = []DayView{} } return json.MarshalIndent(struct { - Schema string `json:"schema"` - Form string `json:"form"` - Days []DayView `json:"days"` - }{Schema, form, days}, "", " ") + Schema string `json:"schema"` + Form string `json:"form"` + Source string `json:"source"` + License string `json:"license"` + Days []DayView `json:"days"` + }{Schema, form, config.SourceURL, config.License, days}, "", " ") } -- cgit v1.3