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228 lines (204 loc) · 6.09 KB
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package config
import (
_ "embed" // for embedding apis.json
"encoding/json"
"fmt"
"io/ioutil"
"os"
"sort"
"strings"
"unicode"
)
// FAKE is used for fake CLI only options like filter=
const (
FAKE = "fake"
FilePathArg = "filepath="
)
//go:embed apis.json
var bundledAPICache []byte
// APIArg are the args passable to an API
type APIArg struct {
Name string
Type string
Related []string
Description string
Required bool
Length int
}
// API describes a CloudStack API
type API struct {
Name string
Verb string
Noun string
Args []*APIArg
RequiredArgs []string
FakeArgs []string
Related []string
Async bool
Description string
ResponseKeys []string
}
var apiCache map[string]*API
var apiVerbMap map[string][]*API
// GetAPIVerbMap returns API cache by verb
func (c *Config) GetAPIVerbMap() map[string][]*API {
if apiVerbMap != nil {
return apiVerbMap
}
apiSplitMap := make(map[string][]*API)
for api := range apiCache {
verb := apiCache[api].Verb
apiSplitMap[verb] = append(apiSplitMap[verb], apiCache[api])
}
return apiSplitMap
}
// GetCache returns API cache by full API name
func (c *Config) GetCache() map[string]*API {
if apiCache == nil {
// read from disk?
return make(map[string]*API)
}
return apiCache
}
// LoadCache loads cache using the default cache file
func LoadCache(c *Config) interface{} {
cacheFile := c.CacheFile()
Debug("Trying to read API cache from:", cacheFile)
cache, err := ioutil.ReadFile(cacheFile)
if err != nil {
fmt.Fprintf(os.Stderr, "Loaded in-built API cache. Failed to read API cache, please run 'sync'.\n")
cache = bundledAPICache
}
var data map[string]interface{}
_ = json.Unmarshal(cache, &data)
return c.UpdateCache(data)
}
// SaveCache saves received auto-discovery data to cache file
func (c *Config) SaveCache(response map[string]interface{}) {
output, _ := json.Marshal(response)
ioutil.WriteFile(c.CacheFile(), output, 0600)
}
// UpdateCache uses auto-discovery data to update internal API cache
func (c *Config) UpdateCache(response map[string]interface{}) interface{} {
apiCache = make(map[string]*API)
apiVerbMap = nil
count := response["count"]
apiList := response["api"].([]interface{})
for _, node := range apiList {
api, valid := node.(map[string]interface{})
if !valid {
fmt.Println("Error, moving on...")
continue
}
apiName := api["name"].(string)
isAsync := api["isasync"].(bool)
description := api["description"].(string)
idx := 0
for _, chr := range apiName {
if unicode.IsLower(chr) {
idx++
} else {
break
}
}
verb := apiName[:idx]
noun := strings.ToLower(apiName[idx:])
var apiArgs []*APIArg
for _, argNode := range api["params"].([]interface{}) {
apiArg, _ := argNode.(map[string]interface{})
related := []string{}
if apiArg["related"] != nil {
related = strings.Split(apiArg["related"].(string), ",")
sort.Strings(related)
}
apiArgs = append(apiArgs, &APIArg{
Name: apiArg["name"].(string) + "=",
Type: apiArg["type"].(string),
Required: apiArg["required"].(bool),
Related: related,
Description: apiArg["description"].(string),
})
}
// Add filter arg
fakeArg := &APIArg{
Name: "filter=",
Type: FAKE,
Description: "cloudmonkey specific response key filtering",
}
apiArgs = append(apiArgs, fakeArg)
fakeArgs := []string{fakeArg.Name}
// Add exclude arg
fakeArg = &APIArg{
Name: "exclude=",
Type: FAKE,
Description: "cloudmonkey specific response key to exlude when filtering",
}
apiArgs = append(apiArgs, fakeArg)
fakeArgs = append(fakeArgs, fakeArg.Name)
if IsFileUploadAPI(apiName) {
fakeArg = &APIArg{
Name: FilePathArg,
Type: FAKE,
Description: "cloudmonkey specific key to upload files for supporting APIs. Comma-separated list of file paths can be provided",
}
apiArgs = append(apiArgs, fakeArg)
fakeArgs = append(fakeArgs, fakeArg.Name)
}
sort.Slice(apiArgs, func(i, j int) bool {
return apiArgs[i].Name < apiArgs[j].Name
})
var responseKeys []string
for _, respNode := range api["response"].([]interface{}) {
if resp, ok := respNode.(map[string]interface{}); ok {
if resp == nil || resp["name"] == nil {
continue
}
responseKeys = append(responseKeys, fmt.Sprintf("%v,", resp["name"]))
}
}
sort.Strings(responseKeys)
var requiredArgs []string
for _, arg := range apiArgs {
if arg.Required {
requiredArgs = append(requiredArgs, arg.Name)
}
}
apiCache[strings.ToLower(apiName)] = &API{
Name: apiName,
Verb: verb,
Noun: noun,
Args: apiArgs,
RequiredArgs: requiredArgs,
FakeArgs: fakeArgs,
Async: isAsync,
Description: description,
ResponseKeys: responseKeys,
}
}
return count
}
// IsFileUploadAPI checks if the provided API name corresponds to a file upload-related API.
// It returns true if the API name matches one of the following (case-insensitive):
// "getUploadParamsForIso", "getUploadParamsForVolume", or "getUploadParamsForTemplate".
func IsFileUploadAPI(api string) bool {
apiName := strings.ToLower(api)
return apiName == "getuploadparamsforiso" ||
apiName == "getuploadparamsforvolume" ||
apiName == "getuploadparamsfortemplate"
}