forked from cosmos/cosmos-sdk
-
Notifications
You must be signed in to change notification settings - Fork 0
/
search.go
250 lines (214 loc) · 6.33 KB
/
search.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
package tx
import (
"errors"
"fmt"
"net/http"
"net/url"
"strconv"
"strings"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/client/context"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/rest"
"github.com/spf13/cobra"
"github.com/spf13/viper"
ctypes "github.com/tendermint/tendermint/rpc/core/types"
"github.com/tendermint/tendermint/types"
)
const (
flagTags = "tags"
flagAny = "any"
flagPage = "page"
flagLimit = "limit"
defaultPage = 1
defaultLimit = 30 // should be consistent with tendermint/tendermint/rpc/core/pipe.go:19
)
// default client command to search through tagged transactions
func SearchTxCmd(cdc *codec.Codec) *cobra.Command {
cmd := &cobra.Command{
Use: "txs",
Short: "Search for all transactions that match the given tags.",
Long: strings.TrimSpace(`
Search for transactions that match exactly the given tags. For example:
$ gaiacli query txs --tags '<tag1>:<value1>&<tag2>:<value2>' --page 1 --limit 30
`),
RunE: func(cmd *cobra.Command, args []string) error {
tagsStr := viper.GetString(flagTags)
tagsStr = strings.Trim(tagsStr, "'")
var tags []string
if strings.Contains(tagsStr, "&") {
tags = strings.Split(tagsStr, "&")
} else {
tags = append(tags, tagsStr)
}
var tmTags []string
for _, tag := range tags {
if !strings.Contains(tag, ":") {
return fmt.Errorf("%s should be of the format <key>:<value>", tagsStr)
} else if strings.Count(tag, ":") > 1 {
return fmt.Errorf("%s should only contain one <key>:<value> pair", tagsStr)
}
keyValue := strings.Split(tag, ":")
if keyValue[0] == types.TxHeightKey {
tag = fmt.Sprintf("%s=%s", keyValue[0], keyValue[1])
} else {
tag = fmt.Sprintf("%s='%s'", keyValue[0], keyValue[1])
}
tmTags = append(tmTags, tag)
}
page := viper.GetInt(flagPage)
limit := viper.GetInt(flagLimit)
cliCtx := context.NewCLIContext().WithCodec(cdc)
txs, err := SearchTxs(cliCtx, cdc, tmTags, page, limit)
if err != nil {
return err
}
var output []byte
if cliCtx.Indent {
output, err = cdc.MarshalJSONIndent(txs, "", " ")
} else {
output, err = cdc.MarshalJSON(txs)
}
if err != nil {
return err
}
fmt.Println(string(output))
return nil
},
}
cmd.Flags().StringP(client.FlagNode, "n", "tcp://localhost:26657", "Node to connect to")
viper.BindPFlag(client.FlagNode, cmd.Flags().Lookup(client.FlagNode))
cmd.Flags().Bool(client.FlagTrustNode, false, "Trust connected full node (don't verify proofs for responses)")
viper.BindPFlag(client.FlagTrustNode, cmd.Flags().Lookup(client.FlagTrustNode))
cmd.Flags().String(flagTags, "", "tag:value list of tags that must match")
cmd.Flags().Int32(flagPage, defaultPage, "Query a specific page of paginated results")
cmd.Flags().Int32(flagLimit, defaultLimit, "Query number of transactions results per page returned")
cmd.MarkFlagRequired(flagTags)
return cmd
}
// SearchTxs performs a search for transactions for a given set of tags via
// Tendermint RPC. It returns a slice of Info object containing txs and metadata.
// An error is returned if the query fails.
func SearchTxs(cliCtx context.CLIContext, cdc *codec.Codec, tags []string, page, limit int) ([]sdk.TxResponse, error) {
if len(tags) == 0 {
return nil, errors.New("must declare at least one tag to search")
}
if page <= 0 {
return nil, errors.New("page must greater than 0")
}
if limit <= 0 {
return nil, errors.New("limit must greater than 0")
}
// XXX: implement ANY
query := strings.Join(tags, " AND ")
// get the node
node, err := cliCtx.GetNode()
if err != nil {
return nil, err
}
prove := !cliCtx.TrustNode
res, err := node.TxSearch(query, prove, page, limit)
if err != nil {
return nil, err
}
if prove {
for _, tx := range res.Txs {
err := ValidateTxResult(cliCtx, tx)
if err != nil {
return nil, err
}
}
}
info, err := FormatTxResults(cdc, res.Txs)
if err != nil {
return nil, err
}
return info, nil
}
// parse the indexed txs into an array of Info
func FormatTxResults(cdc *codec.Codec, res []*ctypes.ResultTx) ([]sdk.TxResponse, error) {
var err error
out := make([]sdk.TxResponse, len(res))
for i := range res {
out[i], err = formatTxResult(cdc, res[i])
if err != nil {
return nil, err
}
}
return out, nil
}
/////////////////////////////////////////
// REST
// Search Tx REST Handler
func SearchTxRequestHandlerFn(cliCtx context.CLIContext, cdc *codec.Codec) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
var tags []string
var page, limit int
var txs []sdk.TxResponse
err := r.ParseForm()
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest,
sdk.AppendMsgToErr("could not parse query parameters", err.Error()))
return
}
if len(r.Form) == 0 {
rest.PostProcessResponse(w, cdc, txs, cliCtx.Indent)
return
}
tags, page, limit, err = parseHTTPArgs(r)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
txs, err = SearchTxs(cliCtx, cdc, tags, page, limit)
if err != nil {
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
rest.PostProcessResponse(w, cdc, txs, cliCtx.Indent)
}
}
func parseHTTPArgs(r *http.Request) (tags []string, page, limit int, err error) {
tags = make([]string, 0, len(r.Form))
for key, values := range r.Form {
if key == "page" || key == "limit" {
continue
}
var value string
value, err = url.QueryUnescape(values[0])
if err != nil {
return tags, page, limit, err
}
var tag string
if key == types.TxHeightKey {
tag = fmt.Sprintf("%s=%s", key, value)
} else {
tag = fmt.Sprintf("%s='%s'", key, value)
}
tags = append(tags, tag)
}
pageStr := r.FormValue("page")
if pageStr == "" {
page = defaultPage
} else {
page, err = strconv.Atoi(pageStr)
if err != nil {
return tags, page, limit, err
} else if page <= 0 {
return tags, page, limit, errors.New("page must greater than 0")
}
}
limitStr := r.FormValue("limit")
if limitStr == "" {
limit = defaultLimit
} else {
limit, err = strconv.Atoi(limitStr)
if err != nil {
return tags, page, limit, err
} else if limit <= 0 {
return tags, page, limit, errors.New("limit must greater than 0")
}
}
return tags, page, limit, nil
}