Add migration

server/migrations/103_single_file_url.down.sql

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+
+DROP TABLE IF EXISTS public_file_tokens_access_history;
+DROP TABLE IF EXISTS public_file_tokens;

server/migrations/103_single_file_url.up.sql

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+
+
+CREATE TABLE IF NOT EXISTS public_file_tokens
+(
+    id           text primary key,
+    file_id bigint NOT NULL,
+    owner_id bigint NOT NULL,
+    app text NOT NULL,
+    access_token  text   not null,
+    valid_till    bigint not null DEFAULT 0,
+    device_limit  int    not null DEFAULT 0,
+    is_disabled   bool   not null DEFAULT FALSE,
+    enable_download bool  not null DEFAULT TRUE,
+    pw_hash         TEXT,
+    pw_nonce        TEXT,
+    mem_limit       BIGINT,
+    ops_limit       BIGINT,
+    created_at    bigint NOT NULL DEFAULT now_utc_micro_seconds(),
+    updated_at    bigint NOT NULL DEFAULT now_utc_micro_seconds()
+);
+
+
+CREATE OR REPLACE TRIGGER  update_public_file_tokens_updated_at
+    BEFORE UPDATE
+    ON public_file_tokens
+    FOR EACH ROW
+EXECUTE PROCEDURE
+    trigger_updated_at_microseconds_column();
+
+
+CREATE TABLE IF NOT EXISTS public_file_tokens_access_history
+(
+    id   text NOT NULL,
+    ip         text   not null,
+    user_agent text   not null,
+    created_at bigint NOT NULL DEFAULT now_utc_micro_seconds(),
+    CONSTRAINT unique_access_id_ip_ua UNIQUE (id, ip, user_agent),
+    CONSTRAINT fk_public_file_history_token_id
+        FOREIGN KEY (id)
+            REFERENCES public_file_tokens (id)
+            ON DELETE CASCADE
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS public_file_token_unique_idx ON public_file_tokens (access_token) WHERE is_disabled = FALSE;
+CREATE INDEX IF NOT EXISTS public_file_tokens_owner_id_updated_at_idx ON public_file_tokens (owner_id, updated_at);
+CREATE UNIQUE INDEX IF NOT EXISTS public_active_file_link_unique_idx ON public_file_tokens (file_id, is_disabled) WHERE is_disabled = FALSE;