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zygosome.go
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zygosome.go
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// Copyright (C) 2013-2017, The MetaCurrency Project (Eric Harris-Braun, Arthur Brock, et. al.)
// Use of this source code is governed by GPLv3 found in the LICENSE file
//----------------------------------------------------------------------------------------
// ZygoRibosome implements a zygomys use of the Ribosome interface
package holochain
import (
"encoding/json"
"errors"
"fmt"
zygo "github.com/glycerine/zygomys/repl"
peer "github.com/libp2p/go-libp2p-peer"
. "github.com/metacurrency/holochain/hash"
"math"
"regexp"
"strconv"
"strings"
"time"
)
const (
ZygoRibosomeType = "zygo"
)
// ZygoRibosome holds data needed for the Zygo VM
type ZygoRibosome struct {
h *Holochain
zome *Zome
env *zygo.Glisp
lastResult zygo.Sexp
library string
}
// Type returns the string value under which this ribosome is registered
func (z *ZygoRibosome) Type() string { return ZygoRibosomeType }
// ChainGenesis runs the application genesis function
// this function gets called after the genesis entries are added to the chain
func (z *ZygoRibosome) ChainGenesis() (err error) {
err = z.boolFn("genesis", "")
return
}
// BridgeGenesis runs the bridging genesis function
// this function gets called on both sides of the bridging
func (z *ZygoRibosome) BridgeGenesis(side int, dnaHash Hash, data string) (err error) {
err = z.boolFn("bridgeGenesis", fmt.Sprintf(`%d "%s" "%s"`, side, dnaHash.String(), sanitizeZyString(data)))
return
}
func (z *ZygoRibosome) boolFn(fnName string, args string) (err error) {
err = z.env.LoadString("(" + fnName + " " + args + ")")
if err != nil {
return
}
result, err := z.env.Run()
if err != nil {
err = fmt.Errorf("Error executing %s: %v", fnName, err)
return
}
switch result.(type) {
case *zygo.SexpBool:
r := result.(*zygo.SexpBool).Val
if !r {
err = fmt.Errorf("%s failed", fnName)
}
case *zygo.SexpSentinel:
err = fmt.Errorf("%s should return boolean, got nil", fnName)
default:
err = fmt.Errorf("%s should return boolean, got: %v", fnName, result)
}
return
}
// Receive calls the app receive function for node-to-node messages
func (z *ZygoRibosome) Receive(from string, msg string) (response string, err error) {
var code string
fnName := "receive"
code = fmt.Sprintf(`(json (%s "%s" (unjson (raw "%s"))))`, fnName, from, sanitizeZyString(msg))
z.h.Debug(code)
err = z.env.LoadString(code)
if err != nil {
return
}
var result interface{}
result, err = z.env.Run()
if err == nil {
switch t := result.(type) {
case *zygo.SexpStr:
response = t.S
case *zygo.SexpInt:
response = fmt.Sprintf("%d", t.Val)
case *zygo.SexpRaw:
response = cleanZygoJson(string(t.Val))
default:
result = fmt.Sprintf("%v", result)
}
}
return
}
// ValidatePackagingRequest calls the app for a validation packaging request for an action
func (z *ZygoRibosome) ValidatePackagingRequest(action ValidatingAction, def *EntryDef) (req PackagingReq, err error) {
var code string
fnName := "validate" + strings.Title(action.Name()) + "Pkg"
code = fmt.Sprintf(`(%s "%s")`, fnName, def.Name)
z.h.Debug(code)
err = z.env.LoadString(code)
if err != nil {
return
}
result, err := z.env.Run()
if err != nil {
err = fmt.Errorf("Error executing %s: %v", fnName, err)
return
}
switch v := result.(type) {
case *zygo.SexpHash:
j := cleanZygoJson(zygo.SexpToJson(v))
m := make(PackagingReq)
err = json.Unmarshal([]byte(j), &m)
if err != nil {
return
}
delete(m, "zKeyOrder")
delete(m, "Atype")
req = m
case *zygo.SexpSentinel:
default:
err = fmt.Errorf("%s should return nil or hash, got: %v", fnName, v)
}
return
}
func prepareZyEntryArgs(def *EntryDef, entry Entry, header *Header) (args string, err error) {
entryStr := entry.Content().(string)
switch def.DataFormat {
case DataFormatRawZygo:
args = entryStr
case DataFormatString:
args = "\"" + sanitizeZyString(entryStr) + "\""
case DataFormatLinks:
fallthrough
case DataFormatJSON:
args = fmt.Sprintf(`(unjson (raw "%s"))`, sanitizeZyString(entryStr))
default:
err = errors.New("data format not implemented: " + def.DataFormat)
return
}
var hdr string
if header != nil {
hdr = fmt.Sprintf(
`(hash EntryLink:"%s" Type:"%s" Time:"%s")`,
header.EntryLink.String(),
header.Type,
header.Time.UTC().Format(time.RFC3339),
)
} else {
hdr = `""`
}
args += " " + hdr
return
}
func prepareZyValidateArgs(action Action, def *EntryDef) (args string, err error) {
switch t := action.(type) {
case *ActionCommit:
args, err = prepareZyEntryArgs(def, t.entry, t.header)
case *ActionPut:
args, err = prepareZyEntryArgs(def, t.entry, t.header)
case *ActionMod:
args, err = prepareZyEntryArgs(def, t.entry, t.header)
if err == nil {
args += fmt.Sprintf(` "%s"`, t.replaces.String())
}
case *ActionDel:
args = fmt.Sprintf(`"%s"`, t.entry.Hash.String())
case *ActionLink:
var j []byte
j, err = json.Marshal(t.links)
if err == nil {
args = fmt.Sprintf(`"%s" (unjson (raw "%s"))`, t.validationBase.String(), sanitizeZyString(string(j)))
}
default:
err = fmt.Errorf("can't prepare args for %T: ", t)
return
}
return
}
func buildZyValidateAction(action Action, def *EntryDef, pkg *ValidationPackage, sources []string) (code string, err error) {
fnName := "validate" + strings.Title(action.Name())
var args string
args, err = prepareZyValidateArgs(action, def)
if err != nil {
return
}
srcs := mkZySources(sources)
var pkgObj string
if pkg == nil || pkg.Chain == nil {
pkgObj = "(hash)"
} else {
var j []byte
j, err = json.Marshal(pkg.Chain)
if err != nil {
return
}
pkgObj = fmt.Sprintf(`(unjson (raw "%s"))`, sanitizeZyString(string(j)))
}
code = fmt.Sprintf(`(%s "%s" %s %s %s)`, fnName, def.Name, args, pkgObj, srcs)
return
}
// ValidateAction builds the correct validation function based on the action an calls it
func (z *ZygoRibosome) ValidateAction(action Action, def *EntryDef, pkg *ValidationPackage, sources []string) (err error) {
var code string
code, err = buildZyValidateAction(action, def, pkg, sources)
if err != nil {
return
}
z.h.Debug(code)
err = z.runValidate(action.Name(), code)
return
}
func mkZySources(sources []string) (srcs string) {
var err error
var b []byte
b, err = json.Marshal(sources)
if err != nil {
return
}
srcs = fmt.Sprintf(`(unjson (raw "%s"))`, sanitizeZyString(string(b)))
return
}
func (z *ZygoRibosome) prepareValidateArgs(def *EntryDef, entry Entry, sources []string) (e string, srcs string, err error) {
c := entry.Content().(string)
// @todo handle JSON if schema type is different
switch def.DataFormat {
case DataFormatRawZygo:
e = c
case DataFormatString:
e = "\"" + sanitizeZyString(c) + "\""
case DataFormatLinks:
fallthrough
case DataFormatJSON:
e = fmt.Sprintf(`(unjson (raw "%s"))`, sanitizeZyString(c))
default:
err = errors.New("data format not implemented: " + def.DataFormat)
return
}
srcs = mkZySources(sources)
return
}
func (z *ZygoRibosome) runValidate(fnName string, code string) (err error) {
err = z.env.LoadString(code)
if err != nil {
return
}
result, err := z.env.Run()
if err != nil {
err = fmt.Errorf("Error executing %s: %v", fnName, err)
return
}
switch v := result.(type) {
case *zygo.SexpBool:
r := v.Val
if !r {
err = ValidationFailedErr
}
case *zygo.SexpSentinel:
err = fmt.Errorf("%s should return boolean, got nil", fnName)
default:
err = fmt.Errorf("%s should return boolean, got: %v", fnName, result)
}
return
}
func (z *ZygoRibosome) validateEntry(fnName string, def *EntryDef, entry Entry, header *Header, sources []string) (err error) {
e, srcs, err := z.prepareValidateArgs(def, entry, sources)
if err != nil {
return
}
var hdr string
if header != nil {
hdr = fmt.Sprintf(
`(hash EntryLink:"%s" Type:"%s" Time:"%s")`,
header.EntryLink.String(),
header.Type,
header.Time.UTC().Format(time.RFC3339),
)
} else {
hdr = `""`
}
code := fmt.Sprintf(`(%s "%s" %s %s %s)`, fnName, def.Name, e, hdr, srcs)
z.h.Debugf("%s: %s", fnName, code)
err = z.runValidate(fnName, code)
return
}
// sanitizeZyString makes sure all quotes are quoted
func sanitizeZyString(s string) string {
s = strings.Replace(s, "\"", "\\\"", -1)
return s
}
// Call calls the zygo function that was registered with expose
func (z *ZygoRibosome) Call(fn *FunctionDef, params interface{}) (result interface{}, err error) {
var code string
switch fn.CallingType {
case STRING_CALLING:
code = fmt.Sprintf(`(%s "%s")`, fn.Name, sanitizeZyString(params.(string)))
case JSON_CALLING:
if params.(string) == "" {
code = fmt.Sprintf(`(json (%s (raw "%s")))`, fn.Name, sanitizeZyString(params.(string)))
} else {
code = fmt.Sprintf(`(json (%s (unjson (raw "%s"))))`, fn.Name, sanitizeZyString(params.(string)))
}
default:
err = errors.New("params type not implemented")
return
}
z.h.Debugf("Zygo Call: %s", code)
err = z.env.LoadString(code)
if err != nil {
return
}
result, err = z.env.Run()
if err == nil {
switch fn.CallingType {
case STRING_CALLING:
switch t := result.(type) {
case *zygo.SexpStr:
result = t.S
case *zygo.SexpInt:
result = fmt.Sprintf("%d", t.Val)
case *zygo.SexpRaw:
result = string(t.Val)
default:
result = fmt.Sprintf("%v", result)
}
case JSON_CALLING:
// type should always be SexpRaw
switch t := result.(type) {
case *zygo.SexpRaw:
result = cleanZygoJson(string(t.Val))
default:
err = errors.New("expected SexpRaw return type")
}
}
}
return
}
// These are the zygo implementations of the library functions that must available in
// all Ribosome implementations.
const (
ZygoLibrary = `(def HC_Version "` + VersionStr + `")` +
`(def HC_Status_Live ` + StatusLiveVal + ")" +
`(def HC_Status_Rejected ` + StatusRejectedVal + ")" +
`(def HC_Status_Deleted ` + StatusDeletedVal + ")" +
`(def HC_Status_Modified ` + StatusModifiedVal + ")" +
`(def HC_Status_Any ` + StatusAnyVal + ")" +
`(def HC_GetMask_Default ` + GetMaskDefaultStr + ")" +
`(def HC_GetMask_Entry ` + GetMaskEntryStr + ")" +
`(def HC_GetMask_EntryType ` + GetMaskEntryTypeStr + ")" +
`(def HC_GetMask_Sources ` + GetMaskSourcesStr + ")" +
`(def HC_GetMask_All ` + GetMaskAllStr + ")" +
`(def HC_Bridge_From ` + BridgeFromStr + ")" +
`(def HC_Bridge_To ` + BridgeToStr + ")" +
`(def HC_LinkAction_Add "` + AddAction + "\")" +
`(def HC_LinkAction_Del "` + DelAction + "\")" +
`(def HC_PkgReq_Chain "` + PkgReqChain + "\")" +
`(def HC_PkgReq_ChainOpt_None "` + PkgReqChainOptNoneStr + "\")" +
`(def HC_PkgReq_ChainOpt_Headers "` + PkgReqChainOptHeadersStr + "\")" +
`(def HC_PkgReq_ChainOpt_Entries "` + PkgReqChainOptEntriesStr + "\")" +
`(def HC_PkgReq_ChainOpt_Full "` + PkgReqChainOptFullStr + "\")"
)
func makeResult(env *zygo.Glisp, resultValue zygo.Sexp, resultError error) (zygo.Sexp, error) {
result, err := zygo.MakeHash(nil, "hash", env)
if err != nil {
return nil, err
}
if resultError != nil {
err = result.HashSet(env.MakeSymbol("error"), &zygo.SexpStr{S: resultError.Error()})
} else {
err = result.HashSet(env.MakeSymbol("result"), resultValue)
}
return result, err
}
// cleanZygoJson removes zygos crazy crap
func cleanZygoJson(s string) string {
s = strings.Replace(s, `"Atype":"hash", `, "", -1)
re := regexp.MustCompile(`, "zKeyOrder":\[[^\]]+\]`)
s = string(re.ReplaceAll([]byte(s), []byte("")))
s = strings.Replace(s, `", "`, `","`, -1)
return s
}
func zyProcessArgs(z *ZygoRibosome, args []Arg, zyArgs []zygo.Sexp) (err error) {
err = checkArgCount(args, len(zyArgs))
if err != nil {
return err
}
// check arg types
for i, a := range zyArgs {
switch args[i].Type {
case StringArg:
var str string
switch t := a.(type) {
case *zygo.SexpStr:
str = t.S
args[i].value = str
default:
return argErr("string", i+1, args[i])
}
case HashArg:
switch t := a.(type) {
case *zygo.SexpStr:
var hash Hash
hash, err = NewHash(t.S)
if err != nil {
return
}
args[i].value = hash
default:
return argErr("string", i+1, args[i])
}
case IntArg:
var integer int64
switch t := a.(type) {
case *zygo.SexpInt:
integer = t.Val
args[i].value = integer
default:
return argErr("int", i+1, args[i])
}
case BoolArg:
var boolean bool
switch t := a.(type) {
case *zygo.SexpBool:
boolean = t.Val
args[i].value = boolean
default:
return argErr("boolean", i+1, args[i])
}
case ArgsArg:
switch t := a.(type) {
case *zygo.SexpStr:
args[i].value = t.S
case *zygo.SexpHash:
args[i].value = cleanZygoJson(zygo.SexpToJson(t))
default:
return argErr("string or hash", i+1, args[i])
}
case EntryArg:
// this a special case in that all EntryArgs must be preceeded by
// string arg that specifies the entry type
// don't have to do checking because the previous time through the loop
// should have done it
entryType := zyArgs[i-1].(*zygo.SexpStr).S
_, def, err := z.h.GetEntryDef(entryType)
if err != nil {
return err
}
var entry string
switch def.DataFormat {
case DataFormatRawZygo:
fallthrough
case DataFormatRawJS:
fallthrough
case DataFormatString:
switch t := a.(type) {
case *zygo.SexpStr:
entry = t.S
default:
return argErr("string", i+1, args[i])
}
case DataFormatLinks:
switch t := a.(type) {
case *zygo.SexpHash:
entry = cleanZygoJson(zygo.SexpToJson(t))
default:
return argErr("hash", i+1, args[i])
}
case DataFormatJSON:
switch a.(type) {
case *zygo.SexpSentinel:
entry = "undefined"
default:
entry = cleanZygoJson(zygo.SexpToJson(a))
}
default:
err = errors.New("data format not implemented: " + def.DataFormat)
return err
}
args[i].value = entry
case MapArg:
switch t := a.(type) {
case *zygo.SexpHash:
j := cleanZygoJson(zygo.SexpToJson(t))
m := make(map[string]interface{})
var err = json.Unmarshal([]byte(j), &m)
if err != nil {
return err
}
args[i].value = m
default:
return argErr("hash", i+1, args[i])
}
case ToStrArg:
var str string
switch t := a.(type) {
case *zygo.SexpStr:
str = t.S
case *zygo.SexpInt:
str = fmt.Sprintf("%d", t.Val)
case *zygo.SexpBool:
if t.Val {
str = "true"
} else {
str = "false"
}
case *zygo.SexpHash:
str = cleanZygoJson(zygo.SexpToJson(t))
case *zygo.SexpArray:
str = cleanZygoJson(zygo.SexpToJson(t))
default:
return argErr("int, boolean, string, array or hash", i+1, args[i])
}
args[i].value = str
}
}
return
}
// NewZygoRibosome factory function to build a zygo execution environment for a zome
func NewZygoRibosome(h *Holochain, zome *Zome) (n Ribosome, err error) {
z := ZygoRibosome{
h: h,
zome: zome,
env: zygo.NewGlispSandbox(),
}
z.env.AddFunction("version",
func(env *zygo.Glisp, name string, args []zygo.Sexp) (zygo.Sexp, error) {
return &zygo.SexpStr{S: VersionStr}, nil
})
addExtras(&z)
var appKeyHash, appAgentStr, appAgentHash, appAgentTopHash zygo.SexpStr
if h != nil {
appKeyHash = zygo.SexpStr{S: h.nodeIDStr}
appAgentStr = zygo.SexpStr{S: sanitizeZyString(string(h.Agent().Identity()))}
appAgentHash = zygo.SexpStr{S: h.agentHash.String()}
appAgentTopHash = zygo.SexpStr{S: h.agentTopHash.String()}
}
// use a closure so that the registered zygo function can call Expose on the correct ZygoRibosome obj
z.env.AddFunction("property",
func(env *zygo.Glisp, name string, zyargs []zygo.Sexp) (zygo.Sexp, error) {
a := &ActionProperty{}
args := a.Args()
err := zyProcessArgs(&z, args, zyargs)
if err != nil {
return zygo.SexpNull, err
}
a.prop = args[0].value.(string)
var p interface{}
p, err = a.Do(h)
if err != nil {
return zygo.SexpNull, err
}
result := zygo.SexpStr{S: p.(string)}
return &result, err
})
z.env.AddFunction("debug",
func(env *zygo.Glisp, name string, zyargs []zygo.Sexp) (zygo.Sexp, error) {
a := &ActionDebug{}
args := a.Args()
err := zyProcessArgs(&z, args, zyargs)
if err != nil {
return zygo.SexpNull, err
}
a.msg = args[0].value.(string)
a.Do(h)
return zygo.SexpNull, err
})
z.env.AddFunction("makeHash",
func(env *zygo.Glisp, name string, zyargs []zygo.Sexp) (zygo.Sexp, error) {
a := &ActionMakeHash{}
args := a.Args()
err := zyProcessArgs(&z, args, zyargs)
if err != nil {
return zygo.SexpNull, err
}
a.entryType = args[0].value.(string)
a.entry = &GobEntry{C: args[1].value.(string)}
var r interface{}
r, err = a.Do(h)
if err != nil {
return zygo.SexpNull, err
}
var entryHash Hash
if r != nil {
entryHash = r.(Hash)
}
var result = zygo.SexpStr{S: entryHash.String()}
return &result, nil
})
z.env.AddFunction("getBridges",
func(env *zygo.Glisp, name string, zyargs []zygo.Sexp) (zygo.Sexp, error) {
a := &ActionGetBridges{}
args := a.Args()
err := zyProcessArgs(&z, args, zyargs)
if err != nil {
return zygo.SexpNull, err
}
r, err := a.Do(h)
if err != nil {
return zygo.SexpNull, err
}
var zbridges *zygo.SexpArray
var bridges []zygo.Sexp
for _, b := range r.([]Bridge) {
var bridge *zygo.SexpHash
bridge, err = zygo.MakeHash(nil, "hash", env)
if err != nil {
return zygo.SexpNull, err
}
if b.Side == BridgeTo {
err = bridge.HashSet(env.MakeSymbol("Side"), &zygo.SexpInt{Val: int64(b.Side)})
if err != nil {
return zygo.SexpNull, err
}
err = bridge.HashSet(env.MakeSymbol("Token"), &zygo.SexpStr{S: b.Token})
if err != nil {
return zygo.SexpNull, err
}
} else {
err = bridge.HashSet(env.MakeSymbol("Side"), &zygo.SexpInt{Val: int64(b.Side)})
if err != nil {
return zygo.SexpNull, err
}
err = bridge.HashSet(env.MakeSymbol("ToApp"), &zygo.SexpStr{S: b.ToApp.String()})
if err != nil {
return zygo.SexpNull, err
}
}
bridges = append(bridges, bridge)
}
zbridges = env.NewSexpArray(bridges)
return zbridges, err
})
z.env.AddFunction("send",
func(env *zygo.Glisp, name string, zyargs []zygo.Sexp) (zygo.Sexp, error) {
a := &ActionSend{}
args := a.Args()
err := zyProcessArgs(&z, args, zyargs)
if err != nil {
return zygo.SexpNull, err
}
a.to, err = peer.IDB58Decode(args[0].value.(Hash).String())
if err != nil {
return zygo.SexpNull, err
}
msg := args[1].value.(map[string]interface{})
var j []byte
j, err = json.Marshal(msg)
if err != nil {
return zygo.SexpNull, err
}
a.msg.ZomeType = z.zome.Name
a.msg.Body = string(j)
if args[2].value != nil {
a.options = &SendOptions{}
opts := args[2].value.(map[string]interface{})
cbmap, ok := opts["Callback"]
if ok {
callback := Callback{zomeType: zome.Name}
v, ok := cbmap.(map[string]interface{})["Function"]
if !ok {
return zygo.SexpNull, errors.New("callback option requires Function")
}
callback.Function = v.(string)
v, ok = cbmap.(map[string]interface{})["ID"]
if !ok {
return zygo.SexpNull, errors.New("callback option requires ID")
}
callback.ID = v.(string)
a.options.Callback = &callback
}
timeout, ok := opts["Timeout"]
if ok {
a.options.Timeout = int(timeout.(int64))
}
}
var r interface{}
r, err = a.Do(h)
var resp zygo.Sexp
if err == nil {
switch t := r.(type) {
case string:
resp = &zygo.SexpStr{S: t}
case nil:
resp = zygo.SexpNull
default:
return zygo.SexpNull, errors.New("send should return nil or string")
}
}
return makeResult(env, resp, err)
})
z.env.AddFunction("call",
func(env *zygo.Glisp, name string, zyargs []zygo.Sexp) (zygo.Sexp, error) {
a := &ActionCall{}
args := a.Args()
err := zyProcessArgs(&z, args, zyargs)
if err != nil {
return zygo.SexpNull, err
}
a.zome = args[0].value.(string)
var zome *Zome
zome, err = h.GetZome(a.zome)
if err != nil {
return zygo.SexpNull, err
}
a.function = args[1].value.(string)
var fn *FunctionDef
fn, err = zome.GetFunctionDef(a.function)
if err != nil {
return zygo.SexpNull, err
}
if fn.CallingType == JSON_CALLING {
switch zyargs[2].(type) {
case *zygo.SexpHash:
a.args = args[2].value
default:
return zygo.SexpNull, errors.New("function calling type requires hash argument type")
}
} else {
a.args = args[2].value.(string)
}
var r interface{}
r, err = a.Do(h)
if err != nil {
return zygo.SexpNull, err
}
return &zygo.SexpStr{S: r.(string)}, err
})
z.env.AddFunction("bridge",
func(env *zygo.Glisp, name string, zyargs []zygo.Sexp) (zygo.Sexp, error) {
a := &ActionBridge{}
args := a.Args()
err := zyProcessArgs(&z, args, zyargs)
if err != nil {
return zygo.SexpNull, err
}
hash := args[0].value.(Hash)
a.token, a.url, err = h.GetBridgeToken(hash)
if err != nil {
return zygo.SexpNull, err
}
a.zome = args[1].value.(string)
a.function = args[2].value.(string)
a.args = args[3].value.(string)
var r interface{}
r, err = a.Do(h)
if err != nil {
return zygo.SexpNull, err
}
return &zygo.SexpStr{S: r.(string)}, err
})
z.env.AddFunction("commit",
func(env *zygo.Glisp, name string, zyargs []zygo.Sexp) (zygo.Sexp, error) {
var a Action = &ActionCommit{}
args := a.Args()
err := zyProcessArgs(&z, args, zyargs)
if err != nil {
return zygo.SexpNull, err
}
entryType := args[0].value.(string)
entry := args[1].value.(string)
var r interface{}
e := GobEntry{C: entry}
r, err = NewCommitAction(entryType, &e).Do(h)
if err != nil {
return zygo.SexpNull, err
}
var entryHash Hash
if r != nil {
entryHash = r.(Hash)
}
var result = zygo.SexpStr{S: entryHash.String()}
return &result, nil
})
z.env.AddFunction("query",
func(env *zygo.Glisp, name string, zyargs []zygo.Sexp) (zygo.Sexp, error) {
a := &ActionQuery{}
args := a.Args()
err := zyProcessArgs(&z, args, zyargs)
if err != nil {
return zygo.SexpNull, err
}
if len(zyargs) == 1 {
options := QueryOptions{}
var j []byte
j, err = json.Marshal(args[0].value)
if err != nil {
return zygo.SexpNull, err
}
z.h.Debugf("Query options: %s", string(j))
err = json.Unmarshal(j, &options)
if err != nil {
return zygo.SexpNull, err
}
a.options = &options
}
r, err := a.Do(h)
if err != nil {
return zygo.SexpNull, err
}
qr := r.([]QueryResult)
defs := make(map[string]*EntryDef)
results := make([]zygo.Sexp, len(qr))
for i, result := range qr {
var sexp zygo.Sexp
var hashSexp, entrySexp *zygo.SexpStr
var headerSexp *zygo.SexpHash
var returnCount int
if a.options.Return.Hashes {
returnCount += 1
hashSexp = &zygo.SexpStr{S: result.Header.EntryLink.String()}
sexp = hashSexp
}
if a.options.Return.Headers {
returnCount += 1
headerSexp, err = zygo.MakeHash(nil, "hash", env)
if err != nil {
return zygo.SexpNull, err
}
sexp = headerSexp
// TODO REFACTOR!!
err = headerSexp.HashSet(env.MakeSymbol("Time"), &zygo.SexpStr{S: fmt.Sprintf("%v", result.Header.Time)})
if err != nil {
return zygo.SexpNull, err
}
err = headerSexp.HashSet(env.MakeSymbol("Type"), &zygo.SexpStr{S: result.Header.Type})
if err != nil {
return zygo.SexpNull, err
}
err = headerSexp.HashSet(env.MakeSymbol("EntryLink"), &zygo.SexpStr{S: result.Header.EntryLink.String()})
if err != nil {
return zygo.SexpNull, err
}
err = headerSexp.HashSet(env.MakeSymbol("HeaderLink"), &zygo.SexpStr{S: result.Header.HeaderLink.String()})
if err != nil {
return zygo.SexpNull, err
}
err = headerSexp.HashSet(env.MakeSymbol("TypeLink"), &zygo.SexpStr{S: result.Header.TypeLink.String()})
if err != nil {
return zygo.SexpNull, err
}
}
if a.options.Return.Entries {
returnCount += 1
var def *EntryDef
var ok bool
def, ok = defs[result.Header.Type]
if !ok {
_, def, err = h.GetEntryDef(result.Header.Type)
if err != nil {
return zygo.SexpNull, err
}
defs[result.Header.Type] = def
}
r := result.Entry.Content()
var content string
switch def.DataFormat {
case DataFormatRawZygo:
fallthrough
case DataFormatRawJS:
fallthrough
case DataFormatString:
fallthrough
case DataFormatLinks:
fallthrough
case DataFormatJSON:
content = result.Entry.Content().(string)
case DataFormatSysAgent:
j, err := json.Marshal(r.(AgentEntry))
if err != nil {
return zygo.SexpNull, err
}
content = string(j)
default:
return zygo.SexpNull, fmt.Errorf("data format not implemented: %s", def.DataFormat)
}
entrySexp = &zygo.SexpStr{S: content}
sexp = entrySexp
}
if returnCount > 1 {
var result *zygo.SexpHash
result, err = zygo.MakeHash(nil, "hash", env)
if err == nil && headerSexp != nil {
err = result.HashSet(env.MakeSymbol("Header"), headerSexp)
}
if err == nil && hashSexp != nil {
err = result.HashSet(env.MakeSymbol("Hash"), hashSexp)
}
if err == nil && entrySexp != nil {
err = result.HashSet(env.MakeSymbol("Entry"), entrySexp)
}
if err != nil {
return zygo.SexpNull, err
}
sexp = result
}
results[i] = sexp
}
return env.NewSexpArray(results), nil
})
z.env.AddFunction("get",
func(env *zygo.Glisp, name string, zyargs []zygo.Sexp) (zygo.Sexp, error) {
var a Action = &ActionGet{}
args := a.Args()
err := zyProcessArgs(&z, args, zyargs)
if err != nil {
return zygo.SexpNull, err
}
options := GetOptions{StatusMask: StatusDefault, GetMask: GetMaskDefault}
if len(zyargs) == 2 {
opts := args[1].value.(map[string]interface{})
mask, ok := opts["StatusMask"]
if ok {
maskval, ok := mask.(float64)
if !ok {
return zygo.SexpNull,
fmt.Errorf("expecting int StatusMask attribute, got %T", mask)
}
options.StatusMask = int(maskval)
}
mask, ok = opts["GetMask"]