File: environments.go

package info (click to toggle)
goiardi 0.11.9-3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, sid
  • size: 2,728 kB
  • sloc: sql: 4,994; makefile: 156; sh: 95; python: 30
file content (427 lines) | stat: -rw-r--r-- 12,981 bytes parent folder | download
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
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
/* Environment functions */

/*
 * Copyright (c) 2013-2017, Jeremy Bingham (<jeremy@goiardi.gl>)
 *
 * Licensed 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 main

import (
	"encoding/json"
	"fmt"
	"net/http"
	"strings"

	"github.com/ctdk/goiardi/actor"
	"github.com/ctdk/goiardi/cookbook"
	"github.com/ctdk/goiardi/environment"
	"github.com/ctdk/goiardi/loginfo"
	"github.com/ctdk/goiardi/node"
	"github.com/ctdk/goiardi/reqctx"
	"github.com/ctdk/goiardi/role"
	"github.com/ctdk/goiardi/util"
	"github.com/tideland/golib/logger"
)

func environmentHandler(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/json")
	accErr := checkAccept(w, r, "application/json")
	if accErr != nil {
		jsonErrorReport(w, r, accErr.Error(), http.StatusNotAcceptable)
		return
	}

	opUser, oerr := reqctx.CtxReqUser(r.Context())
	if oerr != nil {
		jsonErrorReport(w, r, oerr.Error(), oerr.Status())
		return
	}

	pathArray := splitPath(r.URL.Path)
	envResponse := make(map[string]interface{})
	var numResults string
	r.ParseForm()
	if nrs, found := r.Form["num_versions"]; found {
		if len(nrs) < 0 {
			jsonErrorReport(w, r, "invalid num_versions", http.StatusBadRequest)
			return
		}
		numResults = nrs[0]
		err := util.ValidateNumVersions(numResults)
		if err != nil {
			jsonErrorReport(w, r, "You have requested an invalid number of versions (x >= 0 || 'all')", err.Status())
			return
		}
	}

	pathArrayLen := len(pathArray)

	if pathArrayLen == 1 {
		switch r.Method {
		case http.MethodHead:
			// not real meaningful...
			if opUser.IsValidator() {
				headResponse(w, r, http.StatusForbidden)
				return
			}
			headDefaultResponse(w, r)
			return
		case http.MethodGet:
			if opUser.IsValidator() {
				jsonErrorReport(w, r, "You are not allowed to perform this action", http.StatusForbidden)
				return
			}
			envList := environment.GetList()
			for _, env := range envList {
				envResponse[env] = util.CustomURL(fmt.Sprintf("/environments/%s", env))
			}
		case http.MethodPost:
			if !opUser.IsAdmin() {
				jsonErrorReport(w, r, "You are not allowed to perform this action", http.StatusForbidden)
				return
			}
			envData, jerr := parseObjJSON(r.Body)
			if jerr != nil {
				jsonErrorReport(w, r, jerr.Error(), http.StatusBadRequest)
				return
			}
			if _, ok := envData["name"].(string); !ok || envData["name"].(string) == "" {
				jsonErrorReport(w, r, "Environment name missing", http.StatusBadRequest)
				return
			}
			chefEnv, _ := environment.Get(envData["name"].(string))
			if chefEnv != nil {
				httperr := fmt.Errorf("Environment already exists")
				jsonErrorReport(w, r, httperr.Error(), http.StatusConflict)
				return
			}
			var eerr util.Gerror
			chefEnv, eerr = environment.NewFromJSON(envData)
			if eerr != nil {
				jsonErrorReport(w, r, eerr.Error(), eerr.Status())
				return
			}
			if err := chefEnv.Save(); err != nil {
				jsonErrorReport(w, r, err.Error(), http.StatusBadRequest)
				return
			}
			if lerr := loginfo.LogEvent(opUser, chefEnv, "create"); lerr != nil {
				jsonErrorReport(w, r, lerr.Error(), http.StatusInternalServerError)
				return
			}
			envResponse["uri"] = util.ObjURL(chefEnv)
			w.WriteHeader(http.StatusCreated)
		default:
			jsonErrorReport(w, r, "Unrecognized method", http.StatusMethodNotAllowed)
			return
		}
	} else if pathArrayLen == 2 {
		/* All of the 2 element operations return the environment
		 * object, so we do the json encoding in this block and return
		 * out. */
		envName := pathArray[1]

		// get the HEAD out of the way before doing heavy lifting with
		// environments
		if r.Method == http.MethodHead {
			permCheck := func(r *http.Request, envName string, opUser actor.Actor) util.Gerror {
				if opUser.IsValidator() {
					return headForbidden()
				}
				return nil
			}
			headChecking(w, r, opUser, envName, environment.DoesExist, permCheck)
			return
		}

		env, err := environment.Get(envName)
		delEnv := false /* Set this to delete the environment after
		 * sending the json. */
		if err != nil {
			jsonErrorReport(w, r, err.Error(), http.StatusNotFound)
			return
		}
		switch r.Method {
		case http.MethodGet, http.MethodDelete:
			/* We don't actually have to do much here. */
			if r.Method == http.MethodDelete {
				if !opUser.IsAdmin() {
					jsonErrorReport(w, r, "You are not allowed to perform this action", http.StatusForbidden)
					return
				}
				if envName == "_default" {
					jsonErrorReport(w, r, "The '_default' environment cannot be modified.", http.StatusMethodNotAllowed)
					return
				}
				delEnv = true
			} else {
				if opUser.IsValidator() {
					jsonErrorReport(w, r, "You are not allowed to perform this action", http.StatusForbidden)
					return
				}
			}
		case http.MethodPut:
			if !opUser.IsAdmin() {
				jsonErrorReport(w, r, "You are not allowed to perform this action", http.StatusForbidden)
				return
			}
			envData, jerr := parseObjJSON(r.Body)
			if jerr != nil {
				jsonErrorReport(w, r, jerr.Error(), http.StatusBadRequest)
				return
			}
			if envData == nil {
				jsonErrorReport(w, r, "No environment data in body at all!", http.StatusBadRequest)
				return
			}
			if _, ok := envData["name"]; !ok {
				//envData["name"] = envName
				jsonErrorReport(w, r, "Environment name missing", http.StatusBadRequest)
				return
			}
			jsonName, sterr := util.ValidateAsString(envData["name"])
			if sterr != nil {
				jsonErrorReport(w, r, sterr.Error(), sterr.Status())
				return
			} else if jsonName == "" {
				jsonErrorReport(w, r, "Environment name missing", http.StatusBadRequest)
				return
			}
			if envName != envData["name"].(string) {
				env, err = environment.Get(envData["name"].(string))
				if err == nil {
					jsonErrorReport(w, r, "Environment already exists", http.StatusConflict)
					return
				}
				var eerr util.Gerror
				env, eerr = environment.NewFromJSON(envData)
				if eerr != nil {
					jsonErrorReport(w, r, eerr.Error(), eerr.Status())
					return
				}
				w.WriteHeader(http.StatusCreated)
				oldenv, olderr := environment.Get(envName)
				if olderr == nil {
					oldenv.Delete()
				}
			} else {
				if jsonName == "" {
					envData["name"] = envName
				}
				if err := env.UpdateFromJSON(envData); err != nil {
					jsonErrorReport(w, r, err.Error(), err.Status())
					return
				}
			}
			if err := env.Save(); err != nil {
				jsonErrorReport(w, r, err.Error(), err.Status())
				return
			}
			if lerr := loginfo.LogEvent(opUser, env, "modify"); lerr != nil {
				jsonErrorReport(w, r, lerr.Error(), http.StatusInternalServerError)
				return
			}
		default:
			jsonErrorReport(w, r, "Unrecognized method", http.StatusMethodNotAllowed)
			return
		}
		enc := json.NewEncoder(w)
		if err := enc.Encode(&env); err != nil {
			jsonErrorReport(w, r, err.Error(), http.StatusInternalServerError)
			return
		}
		if delEnv {
			err := env.Delete()
			if err != nil {
				jsonErrorReport(w, r, err.Error(), http.StatusInternalServerError)
				return
			}
			if lerr := loginfo.LogEvent(opUser, env, "delete"); lerr != nil {
				jsonErrorReport(w, r, lerr.Error(), http.StatusInternalServerError)
				return
			}
		}
		return
	} else if pathArrayLen == 3 {
		envName := pathArray[1]
		op := pathArray[2]

		if op == "cookbook_versions" && r.Method != http.MethodPost || op != "cookbook_versions" && r.Method != http.MethodGet {
			jsonErrorReport(w, r, "Unrecognized method", http.StatusMethodNotAllowed)
			return
		}

		if opUser.IsValidator() {
			jsonErrorReport(w, r, "You are not allowed to perform this action", http.StatusForbidden)
			return
		}

		env, err := environment.Get(envName)
		if err != nil {
			var errMsg string
			// bleh, stupid errors
			if err.Status() == http.StatusNotFound && (op != "recipes" && op != "cookbooks") {
				errMsg = fmt.Sprintf("environment '%s' not found", envName)
			} else {
				errMsg = err.Error()
			}
			jsonErrorReport(w, r, errMsg, err.Status())
			return
		}

		switch op {
		case "cookbook_versions":
			/* Chef Server API docs aren't even remotely
			 * right here. What it actually wants is the
			 * usual hash of info for the latest or
			 * constrained version. Weird. */
			cbVer, jerr := parseObjJSON(r.Body)
			if jerr != nil {
				errmsg := jerr.Error()
				if !strings.Contains(errmsg, "Field") {
					errmsg = "invalid JSON"
				} else {
					errmsg = jerr.Error()
				}
				jsonErrorReport(w, r, errmsg, http.StatusBadRequest)
				return
			}

			if _, ok := cbVer["run_list"]; !ok {
				jsonErrorReport(w, r, "POSTed JSON badly formed.", http.StatusMethodNotAllowed)
				return
			}
			deps, derr := cookbook.DependsCookbooks(cbVer["run_list"].([]string), env.CookbookVersions)
			if derr != nil {
				switch derr := derr.(type) {
				case *cookbook.DependsError:
					// In 1.0.0-dev, there's a
					// JSONErrorMapReport function in util.
					// Use that when moving this forward
					errMap := make(map[string][]map[string]interface{})
					errMap["error"] = make([]map[string]interface{}, 1)
					errMap["error"][0] = derr.ErrMap()
					w.WriteHeader(http.StatusPreconditionFailed)
					logger.Infof("Cookbook Depends Errors in %s: %+v", env.Name, derr.ErrMap())
					enc := json.NewEncoder(w)
					if jerr := enc.Encode(&errMap); jerr != nil {
						logger.Errorf(jerr.Error())
					}
				default:
					jsonErrorReport(w, r, derr.Error(), http.StatusPreconditionFailed)
				}
				return
			}
			/* Need our own encoding here too. */
			enc := json.NewEncoder(w)
			if err := enc.Encode(&deps); err != nil {
				jsonErrorReport(w, r, err.Error(), http.StatusInternalServerError)
			}
			return
		case "cookbooks":
			envResponse = env.AllCookbookHash(numResults)
		case "nodes":
			nodeList, err := node.GetFromEnv(envName)
			if err != nil {
				jsonErrorReport(w, r, err.Error(), http.StatusInternalServerError)
				return
			}
			for _, chefNode := range nodeList {
				envResponse[chefNode.Name] = util.ObjURL(chefNode)
			}
		case "recipes":
			envRecipes := env.RecipeList()
			/* And... we have to do our own json response
			 * here. Hmph. */
			/* TODO: make the JSON encoding stuff its own
			 * function. Dunno why I never thought of that
			 * before now for this. */
			enc := json.NewEncoder(w)
			if err := enc.Encode(&envRecipes); err != nil {
				jsonErrorReport(w, r, err.Error(), http.StatusInternalServerError)
			}
			return
		default:
			jsonErrorReport(w, r, "Bad request", http.StatusBadRequest)
			return

		}
	} else if pathArrayLen == 4 {
		envName := pathArray[1]
		/* op is either "cookbooks" or "roles", and opName is the name
		 * of the object op refers to. */
		op := pathArray[2]
		opName := pathArray[3]

		if r.Method != http.MethodGet {
			jsonErrorReport(w, r, "Method not allowed", http.StatusMethodNotAllowed)
			return
		}
		if opUser.IsValidator() {
			jsonErrorReport(w, r, "You are not allowed to perform this action", http.StatusForbidden)
			return
		}
		env, err := environment.Get(envName)
		if err != nil {
			jsonErrorReport(w, r, err.Error(), http.StatusNotFound)
			return
		}

		/* Biting the bullet and not redirecting this to
		 * /roles/NAME/environments/NAME. The behavior is exactly the
		 * same, but it makes clients and chef-pedant somewhat unhappy
		 * to not have this way available. */
		if op == "roles" {
			role, err := role.Get(opName)
			if err != nil {
				jsonErrorReport(w, r, err.Error(), http.StatusNotFound)
				return
			}
			var runList []string
			if envName == "_default" {
				runList = role.RunList
			} else {
				runList = role.EnvRunLists[envName]
			}
			envResponse["run_list"] = runList
		} else if op == "cookbooks" {
			cb, err := cookbook.Get(opName)
			if err != nil {
				jsonErrorReport(w, r, err.Error(), http.StatusNotFound)
				return
			}
			/* Here and, I think, here only, if num_versions isn't
			 * set it's supposed to return ALL matching versions.
			 * API docs are wrong here. */
			if numResults == "" {
				numResults = "all"
			}
			envResponse[opName] = cb.ConstrainedInfoHash(numResults, env.CookbookVersions[opName])
		} else {
			/* Not an op we know. */
			jsonErrorReport(w, r, "Bad request - too many elements in path", http.StatusBadRequest)
			return
		}
	} else {
		/* Bad number of path elements. */
		jsonErrorReport(w, r, "Bad request - too many elements in path", http.StatusBadRequest)
		return
	}

	enc := json.NewEncoder(w)
	if err := enc.Encode(&envResponse); err != nil {
		jsonErrorReport(w, r, err.Error(), http.StatusInternalServerError)
	}
}