94 lines
2.4 KiB
Go
94 lines
2.4 KiB
Go
package server
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import (
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"encoding/json"
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"io"
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"net/http"
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"time"
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"github.com/x-grk/longpolling-remote-access/internal/proto"
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)
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// fsOps maps the URL op segment to a proto task type.
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var fsOps = map[string]string{
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"list": proto.TaskFSList,
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"read": proto.TaskFSRead,
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"write": proto.TaskFSWrite,
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"mkdir": proto.TaskFSMkdir,
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"delete": proto.TaskFSDelete,
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"deltree": proto.TaskFSDelTree,
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"unzip": proto.TaskFSUnzip,
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"zip": proto.TaskFSZip,
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"move": proto.TaskFSMove,
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"stat": proto.TaskFSStat,
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"chmod": proto.TaskFSChmod,
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"copy": proto.TaskFSCopy,
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"db.tables": proto.TaskDBTables,
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"db.rows": proto.TaskDBRows,
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"db.set": proto.TaskDBSet,
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"db.add": proto.TaskDBAdd,
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"db.del": proto.TaskDBDel,
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"db.sql": proto.TaskDBSQL,
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"termcwd": proto.TaskTermCwd,
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}
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// fsTaskTimeout bounds how long we wait for an agent to answer a file op.
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const fsTaskTimeout = 60 * time.Second
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// POST /api/panel/agents/{id}/fs/{op} - run a file-manager operation on the
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// agent and return its result. The request body is the op's JSON args and is
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// forwarded verbatim to the agent.
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func (s *Server) handleFSOp(w http.ResponseWriter, r *http.Request) {
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agentID := r.PathValue("id")
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op := r.PathValue("op")
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taskType, ok := fsOps[op]
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if !ok {
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http.Error(w, "unknown op", http.StatusBadRequest)
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return
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}
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a, err := s.db.GetAgent(agentID)
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if err != nil || a == nil {
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http.NotFound(w, r)
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return
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}
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if !s.online(a) {
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writeJSON(w, proto.TaskResult{Error: "машина офлайн"})
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return
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}
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args, err := io.ReadAll(http.MaxBytesReader(w, r.Body, 64<<20))
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if err != nil {
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http.Error(w, "bad request", http.StatusBadRequest)
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return
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}
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// Changes to a database go to the audit log, with what was done.
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if op == "db.set" || op == "db.add" || op == "db.del" || op == "db.sql" {
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var d struct {
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Path, Table, Column, SQL string
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}
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_ = json.Unmarshal(args, &d)
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what := d.Path + " " + d.Table
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if d.Column != "" {
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what += "." + d.Column
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}
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if d.SQL != "" {
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what += " " + d.SQL
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}
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if len(what) > 300 {
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what = what[:300]
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}
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if admin := s.currentAdmin(r); admin != nil {
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s.db.Audit(admin.ID, agentID, op+":"+what)
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}
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}
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taskID, resultCh := s.hub.CreateTask(agentID, taskType, args)
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defer s.hub.DiscardTask(taskID)
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select {
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case res := <-resultCh:
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writeJSON(w, res)
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case <-time.After(fsTaskTimeout):
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writeJSON(w, proto.TaskResult{Error: "таймаут ожидания агента"})
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}
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}
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