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88ae2870 | 1 | ;;;; soap-client.el -- Access SOAP web services from Emacs |
16d2ff89 | 2 | |
4e358705 | 3 | ;; Copyright (C) 2009-2011 Free Software Foundation, Inc. |
16d2ff89 | 4 | |
d733e817 | 5 | ;; Author: Alexandru Harsanyi <AlexHarsanyi@gmail.com> |
4e358705 GM |
6 | ;; Created: December, 2009 |
7 | ;; Keywords: soap, web-services, comm, hypermedia | |
d733e817 | 8 | ;; Package: soap-client |
4e358705 GM |
9 | ;; Homepage: http://code.google.com/p/emacs-soap-client |
10 | ||
11 | ;; This file is part of GNU Emacs. | |
12 | ||
13 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
16d2ff89 MA |
14 | ;; it under the terms of the GNU General Public License as published by |
15 | ;; the Free Software Foundation, either version 3 of the License, or | |
16 | ;; (at your option) any later version. | |
17 | ||
4e358705 | 18 | ;; GNU Emacs is distributed in the hope that it will be useful, |
16d2ff89 MA |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
4e358705 | 24 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
16d2ff89 MA |
25 | |
26 | ;;; Commentary: | |
88ae2870 | 27 | ;; |
16d2ff89 MA |
28 | ;; To use the SOAP client, you first need to load the WSDL document for the |
29 | ;; service you want to access, using `soap-load-wsdl-from-url'. A WSDL | |
30 | ;; document describes the available operations of the SOAP service, how their | |
31 | ;; parameters and responses are encoded. To invoke operations, you use the | |
32 | ;; `soap-invoke' method passing it the WSDL, the service name, the operation | |
33 | ;; you wish to invoke and any required parameters. | |
34 | ;; | |
f6b1b0a8 | 35 | ;; Ideally, the service you want to access will have some documentation about |
16d2ff89 MA |
36 | ;; the operations it supports. If it does not, you can try using |
37 | ;; `soap-inspect' to browse the WSDL document and see the available operations | |
38 | ;; and their parameters. | |
39 | ;; | |
40 | ||
41 | ;;; Code: | |
42 | ||
43 | (eval-when-compile (require 'cl)) | |
44 | ||
45 | (require 'xml) | |
46 | (require 'warnings) | |
47 | (require 'url) | |
48 | (require 'url-http) | |
49 | (require 'url-util) | |
50 | (require 'mm-decode) | |
51 | ||
52 | (defsubst soap-warning (message &rest args) | |
53 | "Display a warning MESSAGE with ARGS, using the 'soap-client warning type." | |
54 | (display-warning 'soap-client (apply 'format message args) :warning)) | |
55 | ||
56 | (defgroup soap-client nil | |
57 | "Access SOAP web services from Emacs." | |
58 | :group 'tools) | |
59 | ||
60 | ;;;; Support for parsing XML documents with namespaces | |
61 | ||
62 | ;; XML documents with namespaces are difficult to parse because the names of | |
63 | ;; the nodes depend on what "xmlns" aliases have been defined in the document. | |
64 | ;; To work with such documents, we introduce a translation layer between a | |
65 | ;; "well known" namespace tag and the local namespace tag in the document | |
66 | ;; being parsed. | |
67 | ||
274c2d34 | 68 | (defconst soap-well-known-xmlns |
16d2ff89 MA |
69 | '(("apachesoap" . "http://xml.apache.org/xml-soap") |
70 | ("soapenc" . "http://schemas.xmlsoap.org/soap/encoding/") | |
71 | ("wsdl" . "http://schemas.xmlsoap.org/wsdl/") | |
72 | ("wsdlsoap" . "http://schemas.xmlsoap.org/wsdl/soap/") | |
73 | ("xsd" . "http://www.w3.org/2001/XMLSchema") | |
74 | ("xsi" . "http://www.w3.org/2001/XMLSchema-instance") | |
75 | ("soap" . "http://schemas.xmlsoap.org/soap/envelope/") | |
76 | ("soap12" . "http://schemas.xmlsoap.org/wsdl/soap12/") | |
77 | ("http" . "http://schemas.xmlsoap.org/wsdl/http/") | |
78 | ("mime" . "http://schemas.xmlsoap.org/wsdl/mime/")) | |
79 | "A list of well known xml namespaces and their aliases.") | |
80 | ||
274c2d34 | 81 | (defvar soap-local-xmlns nil |
16d2ff89 MA |
82 | "A list of local namespace aliases. |
83 | This is a dynamically bound variable, controlled by | |
84 | `soap-with-local-xmlns'.") | |
85 | ||
274c2d34 | 86 | (defvar soap-default-xmlns nil |
16d2ff89 MA |
87 | "The default XML namespaces. |
88 | Names in this namespace will be unqualified. This is a | |
89 | dynamically bound variable, controlled by | |
90 | `soap-with-local-xmlns'") | |
91 | ||
274c2d34 | 92 | (defvar soap-target-xmlns nil |
16d2ff89 MA |
93 | "The target XML namespace. |
94 | New XSD elements will be defined in this namespace, unless they | |
95 | are fully qualified for a different namespace. This is a | |
96 | dynamically bound variable, controlled by | |
97 | `soap-with-local-xmlns'") | |
98 | ||
99 | (defun soap-wk2l (well-known-name) | |
100 | "Return local variant of WELL-KNOWN-NAME. | |
101 | This is done by looking up the namespace in the | |
274c2d34 | 102 | `soap-well-known-xmlns' table and resolving the namespace to |
16d2ff89 | 103 | the local name based on the current local translation table |
274c2d34 | 104 | `soap-local-xmlns'. See also `soap-with-local-xmlns'." |
16d2ff89 MA |
105 | (let ((wk-name-1 (if (symbolp well-known-name) |
106 | (symbol-name well-known-name) | |
107 | well-known-name))) | |
108 | (cond | |
109 | ((string-match "^\\(.*\\):\\(.*\\)$" wk-name-1) | |
110 | (let ((ns (match-string 1 wk-name-1)) | |
111 | (name (match-string 2 wk-name-1))) | |
274c2d34 MA |
112 | (let ((namespace (cdr (assoc ns soap-well-known-xmlns)))) |
113 | (cond ((equal namespace soap-default-xmlns) | |
16d2ff89 MA |
114 | ;; Name is unqualified in the default namespace |
115 | (if (symbolp well-known-name) | |
116 | (intern name) | |
117 | name)) | |
118 | (t | |
274c2d34 | 119 | (let* ((local-ns (car (rassoc namespace soap-local-xmlns))) |
16d2ff89 MA |
120 | (local-name (concat local-ns ":" name))) |
121 | (if (symbolp well-known-name) | |
122 | (intern local-name) | |
123 | local-name))))))) | |
124 | (t well-known-name)))) | |
125 | ||
126 | (defun soap-l2wk (local-name) | |
127 | "Convert LOCAL-NAME into a well known name. | |
128 | The namespace of LOCAL-NAME is looked up in the | |
274c2d34 | 129 | `soap-well-known-xmlns' table and a well known namespace tag is |
16d2ff89 MA |
130 | used in the name. |
131 | ||
132 | nil is returned if there is no well-known namespace for the | |
133 | namespace of LOCAL-NAME." | |
134 | (let ((l-name-1 (if (symbolp local-name) | |
135 | (symbol-name local-name) | |
136 | local-name)) | |
137 | namespace name) | |
138 | (cond | |
139 | ((string-match "^\\(.*\\):\\(.*\\)$" l-name-1) | |
140 | (setq name (match-string 2 l-name-1)) | |
141 | (let ((ns (match-string 1 l-name-1))) | |
274c2d34 | 142 | (setq namespace (cdr (assoc ns soap-local-xmlns))) |
16d2ff89 MA |
143 | (unless namespace |
144 | (error "Soap-l2wk(%s): no namespace for alias %s" local-name ns)))) | |
145 | (t | |
146 | (setq name l-name-1) | |
274c2d34 | 147 | (setq namespace soap-default-xmlns))) |
16d2ff89 MA |
148 | |
149 | (if namespace | |
274c2d34 | 150 | (let ((well-known-ns (car (rassoc namespace soap-well-known-xmlns)))) |
16d2ff89 MA |
151 | (if well-known-ns |
152 | (let ((well-known-name (concat well-known-ns ":" name))) | |
153 | (if (symbol-name local-name) | |
154 | (intern well-known-name) | |
155 | well-known-name)) | |
156 | (progn | |
157 | ;; (soap-warning "soap-l2wk(%s): namespace %s has no well-known tag" | |
158 | ;; local-name namespace) | |
159 | nil))) | |
160 | ;; if no namespace is defined, just return the unqualified name | |
161 | name))) | |
88ae2870 | 162 | |
16d2ff89 MA |
163 | |
164 | (defun soap-l2fq (local-name &optional use-tns) | |
165 | "Convert LOCAL-NAME into a fully qualified name. | |
166 | A fully qualified name is a cons of the namespace name and the | |
167 | name of the element itself. For example \"xsd:string\" is | |
88ae2870 | 168 | converted to \(\"http://www.w3.org/2001/XMLSchema\" . \"string\"\). |
16d2ff89 MA |
169 | |
170 | The USE-TNS argument specifies what to do when LOCAL-NAME has no | |
274c2d34 | 171 | namespace tag. If USE-TNS is non-nil, the `soap-target-xmlns' |
16d2ff89 | 172 | will be used as the element's namespace, otherwise |
274c2d34 | 173 | `soap-default-xmlns' will be used. |
16d2ff89 MA |
174 | |
175 | This is needed because different parts of a WSDL document can use | |
176 | different namespace aliases for the same element." | |
177 | (let ((local-name-1 (if (symbolp local-name) | |
178 | (symbol-name local-name) | |
179 | local-name))) | |
180 | (cond ((string-match "^\\(.*\\):\\(.*\\)$" local-name-1) | |
181 | (let ((ns (match-string 1 local-name-1)) | |
182 | (name (match-string 2 local-name-1))) | |
274c2d34 | 183 | (let ((namespace (cdr (assoc ns soap-local-xmlns)))) |
16d2ff89 MA |
184 | (if namespace |
185 | (cons namespace name) | |
186 | (error "Soap-l2fq(%s): unknown alias %s" local-name ns))))) | |
187 | (t | |
188 | (cons (if use-tns | |
274c2d34 MA |
189 | soap-target-xmlns |
190 | soap-default-xmlns) | |
16d2ff89 MA |
191 | local-name))))) |
192 | ||
193 | (defun soap-extract-xmlns (node &optional xmlns-table) | |
194 | "Return a namespace alias table for NODE by extending XMLNS-TABLE." | |
195 | (let (xmlns default-ns target-ns) | |
196 | (dolist (a (xml-node-attributes node)) | |
197 | (let ((name (symbol-name (car a))) | |
198 | (value (cdr a))) | |
199 | (cond ((string= name "targetNamespace") | |
200 | (setq target-ns value)) | |
201 | ((string= name "xmlns") | |
202 | (setq default-ns value)) | |
203 | ((string-match "^xmlns:\\(.*\\)$" name) | |
204 | (push (cons (match-string 1 name) value) xmlns))))) | |
88ae2870 | 205 | |
16d2ff89 MA |
206 | (let ((tns (assoc "tns" xmlns))) |
207 | (cond ((and tns target-ns) | |
88ae2870 MA |
208 | ;; If a tns alias is defined for this node, it must match |
209 | ;; the target namespace. | |
16d2ff89 | 210 | (unless (equal target-ns (cdr tns)) |
88ae2870 MA |
211 | (soap-warning |
212 | "soap-extract-xmlns(%s): tns alias and targetNamespace mismatch" | |
213 | (xml-node-name node)))) | |
16d2ff89 MA |
214 | ((and tns (not target-ns)) |
215 | (setq target-ns (cdr tns))) | |
216 | ((and (not tns) target-ns) | |
217 | ;; a tns alias was not defined in this node. See if the node has | |
218 | ;; a "targetNamespace" attribute and add an alias to this. Note | |
219 | ;; that we might override an existing tns alias in XMLNS-TABLE, | |
220 | ;; but that is intended. | |
221 | (push (cons "tns" target-ns) xmlns)))) | |
88ae2870 | 222 | |
16d2ff89 MA |
223 | (list default-ns target-ns (append xmlns xmlns-table)))) |
224 | ||
225 | (defmacro soap-with-local-xmlns (node &rest body) | |
226 | "Install a local alias table from NODE and execute BODY." | |
227 | (declare (debug (form &rest form)) (indent 1)) | |
228 | (let ((xmlns (make-symbol "xmlns"))) | |
274c2d34 MA |
229 | `(let ((,xmlns (soap-extract-xmlns ,node soap-local-xmlns))) |
230 | (let ((soap-default-xmlns (or (nth 0 ,xmlns) soap-default-xmlns)) | |
231 | (soap-target-xmlns (or (nth 1 ,xmlns) soap-target-xmlns)) | |
232 | (soap-local-xmlns (nth 2 ,xmlns))) | |
16d2ff89 MA |
233 | ,@body)))) |
234 | ||
235 | (defun soap-get-target-namespace (node) | |
236 | "Return the target namespace of NODE. | |
237 | This is the namespace in which new elements will be defined." | |
238 | (or (xml-get-attribute-or-nil node 'targetNamespace) | |
274c2d34 MA |
239 | (cdr (assoc "tns" soap-local-xmlns)) |
240 | soap-target-xmlns)) | |
16d2ff89 MA |
241 | |
242 | (defun soap-xml-get-children1 (node child-name) | |
243 | "Return the children of NODE named CHILD-NAME. | |
244 | This is the same as `xml-get-children', but CHILD-NAME can have | |
245 | namespace tag." | |
246 | (let (result) | |
247 | (dolist (c (xml-node-children node)) | |
248 | (when (and (consp c) | |
249 | (soap-with-local-xmlns c | |
250 | ;; We use `ignore-errors' here because we want to silently | |
251 | ;; skip nodes for which we cannot convert them to a | |
252 | ;; well-known name. | |
88ae2870 MA |
253 | (eq (ignore-errors (soap-l2wk (xml-node-name c))) |
254 | child-name))) | |
16d2ff89 MA |
255 | (push c result))) |
256 | (nreverse result))) | |
257 | ||
258 | (defun soap-xml-get-attribute-or-nil1 (node attribute) | |
259 | "Return the NODE's ATTRIBUTE, or nil if it does not exist. | |
260 | This is the same as `xml-get-attribute-or-nil', but ATTRIBUTE can | |
261 | be tagged with a namespace tag." | |
262 | (catch 'found | |
263 | (soap-with-local-xmlns node | |
264 | (dolist (a (xml-node-attributes node)) | |
265 | ;; We use `ignore-errors' here because we want to silently skip | |
266 | ;; attributes for which we cannot convert them to a well-known name. | |
267 | (when (eq (ignore-errors (soap-l2wk (car a))) attribute) | |
268 | (throw 'found (cdr a))))))) | |
269 | ||
270 | \f | |
271 | ;;;; XML namespaces | |
272 | ||
273 | ;; An element in an XML namespace, "things" stored in soap-xml-namespaces will | |
274 | ;; be derived from this object. | |
275 | ||
276 | (defstruct soap-element | |
277 | name | |
278 | ;; The "well-known" namespace tag for the element. For example, while | |
279 | ;; parsing XML documents, we can have different tags for the XMLSchema | |
280 | ;; namespace, but internally all our XMLSchema elements will have the "xsd" | |
281 | ;; tag. | |
282 | namespace-tag) | |
283 | ||
284 | (defun soap-element-fq-name (element) | |
285 | "Return a fully qualified name for ELEMENT. | |
286 | A fq name is the concatenation of the namespace tag and the | |
287 | element name." | |
288 | (concat (soap-element-namespace-tag element) | |
289 | ":" (soap-element-name element))) | |
290 | ||
291 | ;; a namespace link stores an alias for an object in once namespace to a | |
292 | ;; "target" object possibly in a different namespace | |
293 | ||
294 | (defstruct (soap-namespace-link (:include soap-element)) | |
295 | target) | |
296 | ||
297 | ;; A namespace is a collection of soap-element objects under a name (the name | |
298 | ;; of the namespace). | |
299 | ||
300 | (defstruct soap-namespace | |
301 | (name nil :read-only t) ; e.g "http://xml.apache.org/xml-soap" | |
302 | (elements (make-hash-table :test 'equal) :read-only t)) | |
303 | ||
304 | (defun soap-namespace-put (element ns) | |
305 | "Store ELEMENT in NS. | |
306 | Multiple elements with the same name can be stored in a | |
307 | namespace. When retrieving the element you can specify a | |
308 | discriminant predicate to `soap-namespace-get'" | |
309 | (let ((name (soap-element-name element))) | |
310 | (push element (gethash name (soap-namespace-elements ns))))) | |
311 | ||
312 | (defun soap-namespace-put-link (name target ns &optional replace) | |
313 | "Store a link from NAME to TARGET in NS. | |
314 | An error will be signaled if an element by the same name is | |
315 | already present in NS, unless REPLACE is non nil. | |
316 | ||
317 | TARGET can be either a SOAP-ELEMENT or a string denoting an | |
318 | element name into another namespace. | |
319 | ||
320 | If NAME is nil, an element with the same name as TARGET will be | |
321 | added to the namespace." | |
322 | ||
323 | (unless (and name (not (equal name ""))) | |
324 | ;; if name is nil, use TARGET as a name... | |
325 | (cond ((soap-element-p target) | |
326 | (setq name (soap-element-name target))) | |
d733e817 MA |
327 | ((consp target) ; a fq name: (namespace . name) |
328 | (setq name (cdr target))) | |
16d2ff89 MA |
329 | ((stringp target) |
330 | (cond ((string-match "^\\(.*\\):\\(.*\\)$" target) | |
331 | (setq name (match-string 2 target))) | |
332 | (t | |
333 | (setq name target)))))) | |
334 | ||
d733e817 MA |
335 | ;; by now, name should be valid |
336 | (assert (and name (not (equal name ""))) | |
337 | nil | |
338 | "Cannot determine name for namespace link") | |
16d2ff89 MA |
339 | (push (make-soap-namespace-link :name name :target target) |
340 | (gethash name (soap-namespace-elements ns)))) | |
341 | ||
342 | (defun soap-namespace-get (name ns &optional discriminant-predicate) | |
343 | "Retrieve an element with NAME from the namespace NS. | |
344 | If multiple elements with the same name exist, | |
345 | DISCRIMINANT-PREDICATE is used to pick one of them. This allows | |
346 | storing elements of different types (like a message type and a | |
347 | binding) but the same name." | |
348 | (assert (stringp name)) | |
349 | (let ((elements (gethash name (soap-namespace-elements ns)))) | |
350 | (cond (discriminant-predicate | |
351 | (catch 'found | |
352 | (dolist (e elements) | |
353 | (when (funcall discriminant-predicate e) | |
354 | (throw 'found e))))) | |
355 | ((= (length elements) 1) (car elements)) | |
356 | ((> (length elements) 1) | |
88ae2870 MA |
357 | (error |
358 | "Soap-namespace-get(%s): multiple elements, discriminant needed" | |
359 | name)) | |
16d2ff89 MA |
360 | (t |
361 | nil)))) | |
362 | ||
363 | \f | |
364 | ;;;; WSDL documents | |
365 | ;;;;; WSDL document elements | |
366 | ||
367 | (defstruct (soap-basic-type (:include soap-element)) | |
368 | kind ; a symbol of: string, dateTime, long, int | |
369 | ) | |
370 | ||
371 | (defstruct soap-sequence-element | |
372 | name type nillable? multiple?) | |
373 | ||
374 | (defstruct (soap-sequence-type (:include soap-element)) | |
375 | parent ; OPTIONAL WSDL-TYPE name | |
376 | elements ; LIST of SOAP-SEQUCENCE-ELEMENT | |
377 | ) | |
378 | ||
379 | (defstruct (soap-array-type (:include soap-element)) | |
380 | element-type ; WSDL-TYPE of the array elements | |
381 | ) | |
382 | ||
383 | (defstruct (soap-message (:include soap-element)) | |
384 | parts ; ALIST of NAME => WSDL-TYPE name | |
385 | ) | |
386 | ||
387 | (defstruct (soap-operation (:include soap-element)) | |
388 | parameter-order | |
389 | input ; (NAME . MESSAGE) | |
390 | output ; (NAME . MESSAGE) | |
391 | faults) ; a list of (NAME . MESSAGE) | |
392 | ||
393 | (defstruct (soap-port-type (:include soap-element)) | |
394 | operations) ; a namespace of operations | |
395 | ||
396 | ;; A bound operation is an operation which has a soap action and a use | |
397 | ;; method attached -- these are attached as part of a binding and we | |
398 | ;; can have different bindings for the same operations. | |
399 | (defstruct soap-bound-operation | |
400 | operation ; SOAP-OPERATION | |
401 | soap-action ; value for SOAPAction HTTP header | |
88ae2870 MA |
402 | use ; 'literal or 'encoded, see |
403 | ; http://www.w3.org/TR/wsdl#_soap:body | |
16d2ff89 MA |
404 | ) |
405 | ||
406 | (defstruct (soap-binding (:include soap-element)) | |
407 | port-type | |
408 | (operations (make-hash-table :test 'equal) :readonly t)) | |
409 | ||
410 | (defstruct (soap-port (:include soap-element)) | |
411 | service-url | |
412 | binding) | |
413 | ||
414 | (defun soap-default-xsd-types () | |
415 | "Return a namespace containing some of the XMLSchema types." | |
416 | (let ((ns (make-soap-namespace :name "http://www.w3.org/2001/XMLSchema"))) | |
417 | (dolist (type '("string" "dateTime" "boolean" "long" "int" "float" | |
418 | "base64Binary" "anyType" "Array" "byte[]")) | |
419 | (soap-namespace-put | |
420 | (make-soap-basic-type :name type :kind (intern type)) | |
421 | ns)) | |
422 | ns)) | |
423 | ||
424 | (defun soap-default-soapenc-types () | |
425 | "Return a namespace containing some of the SOAPEnc types." | |
88ae2870 MA |
426 | (let ((ns (make-soap-namespace |
427 | :name "http://schemas.xmlsoap.org/soap/encoding/"))) | |
16d2ff89 MA |
428 | (dolist (type '("string" "dateTime" "boolean" "long" "int" "float" |
429 | "base64Binary" "anyType" "Array" "byte[]")) | |
430 | (soap-namespace-put | |
431 | (make-soap-basic-type :name type :kind (intern type)) | |
432 | ns)) | |
433 | ns)) | |
434 | ||
435 | (defun soap-type-p (element) | |
436 | "Return t if ELEMENT is a SOAP data type (basic or complex)." | |
437 | (or (soap-basic-type-p element) | |
438 | (soap-sequence-type-p element) | |
439 | (soap-array-type-p element))) | |
88ae2870 | 440 | |
16d2ff89 MA |
441 | |
442 | ;;;;; The WSDL document | |
443 | ||
444 | ;; The WSDL data structure used for encoding/decoding SOAP messages | |
445 | (defstruct soap-wsdl | |
446 | origin ; file or URL from which this wsdl was loaded | |
447 | ports ; a list of SOAP-PORT instances | |
448 | alias-table ; a list of namespace aliases | |
449 | namespaces ; a list of namespaces | |
450 | ) | |
451 | ||
452 | (defun soap-wsdl-add-alias (alias name wsdl) | |
453 | "Add a namespace ALIAS for NAME to the WSDL document." | |
454 | (push (cons alias name) (soap-wsdl-alias-table wsdl))) | |
455 | ||
456 | (defun soap-wsdl-find-namespace (name wsdl) | |
457 | "Find a namespace by NAME in the WSDL document." | |
458 | (catch 'found | |
459 | (dolist (ns (soap-wsdl-namespaces wsdl)) | |
460 | (when (equal name (soap-namespace-name ns)) | |
461 | (throw 'found ns))))) | |
462 | ||
463 | (defun soap-wsdl-add-namespace (ns wsdl) | |
464 | "Add the namespace NS to the WSDL document. | |
465 | If a namespace by this name already exists in WSDL, individual | |
466 | elements will be added to it." | |
467 | (let ((existing (soap-wsdl-find-namespace (soap-namespace-name ns) wsdl))) | |
468 | (if existing | |
469 | ;; Add elements from NS to EXISTING, replacing existing values. | |
470 | (maphash (lambda (key value) | |
471 | (dolist (v value) | |
472 | (soap-namespace-put v existing))) | |
473 | (soap-namespace-elements ns)) | |
474 | (push ns (soap-wsdl-namespaces wsdl))))) | |
475 | ||
476 | (defun soap-wsdl-get (name wsdl &optional predicate use-local-alias-table) | |
477 | "Retrieve element NAME from the WSDL document. | |
478 | ||
479 | PREDICATE is used to differentiate between elements when NAME | |
480 | refers to multiple elements. A typical value for this would be a | |
481 | structure predicate for the type of element you want to retrieve. | |
482 | For example, to retrieve a message named \"foo\" when other | |
483 | elements named \"foo\" exist in the WSDL you could use: | |
484 | ||
485 | (soap-wsdl-get \"foo\" WSDL 'soap-message-p) | |
486 | ||
274c2d34 | 487 | If USE-LOCAL-ALIAS-TABLE is not nil, `soap-local-xmlns` will be |
16d2ff89 MA |
488 | used to resolve the namespace alias." |
489 | (let ((alias-table (soap-wsdl-alias-table wsdl)) | |
490 | namespace element-name element) | |
491 | ||
492 | (when (symbolp name) | |
493 | (setq name (symbol-name name))) | |
494 | ||
495 | (when use-local-alias-table | |
274c2d34 | 496 | (setq alias-table (append soap-local-xmlns alias-table))) |
88ae2870 | 497 | |
16d2ff89 MA |
498 | (cond ((consp name) ; a fully qualified name, as returned by `soap-l2fq' |
499 | (setq element-name (cdr name)) | |
500 | (when (symbolp element-name) | |
501 | (setq element-name (symbol-name element-name))) | |
502 | (setq namespace (soap-wsdl-find-namespace (car name) wsdl)) | |
503 | (unless namespace | |
504 | (error "Soap-wsdl-get(%s): unknown namespace: %s" name namespace))) | |
88ae2870 | 505 | |
16d2ff89 MA |
506 | ((string-match "^\\(.*\\):\\(.*\\)$" name) |
507 | (setq element-name (match-string 2 name)) | |
508 | ||
509 | (let* ((ns-alias (match-string 1 name)) | |
510 | (ns-name (cdr (assoc ns-alias alias-table)))) | |
511 | (unless ns-name | |
88ae2870 MA |
512 | (error "Soap-wsdl-get(%s): cannot find namespace alias %s" |
513 | name ns-alias)) | |
514 | ||
16d2ff89 MA |
515 | (setq namespace (soap-wsdl-find-namespace ns-name wsdl)) |
516 | (unless namespace | |
88ae2870 MA |
517 | (error |
518 | "Soap-wsdl-get(%s): unknown namespace %s, referenced by alias %s" | |
519 | name ns-name ns-alias)))) | |
16d2ff89 MA |
520 | (t |
521 | (error "Soap-wsdl-get(%s): bad name" name))) | |
522 | ||
523 | (setq element (soap-namespace-get | |
524 | element-name namespace | |
525 | (if predicate | |
526 | (lambda (e) | |
527 | (or (funcall 'soap-namespace-link-p e) | |
528 | (funcall predicate e))) | |
529 | nil))) | |
88ae2870 | 530 | |
16d2ff89 MA |
531 | (unless element |
532 | (error "Soap-wsdl-get(%s): cannot find element" name)) | |
88ae2870 | 533 | |
16d2ff89 MA |
534 | (if (soap-namespace-link-p element) |
535 | ;; NOTE: don't use the local alias table here | |
536 | (soap-wsdl-get (soap-namespace-link-target element) wsdl predicate) | |
537 | element))) | |
538 | ||
539 | ;;;;; Resolving references for wsdl types | |
540 | ||
541 | ;; See `soap-wsdl-resolve-references', which is the main entry point for | |
542 | ;; resolving references | |
543 | ||
544 | (defun soap-resolve-references-for-element (element wsdl) | |
545 | "Resolve references in ELEMENT using the WSDL document. | |
546 | This is a generic function which invokes a specific function | |
547 | depending on the element type. | |
548 | ||
549 | If ELEMENT has no resolver function, it is silently ignored. | |
550 | ||
551 | All references are resolved in-place, that is the ELEMENT is | |
552 | updated." | |
553 | (let ((resolver (get (aref element 0) 'soap-resolve-references))) | |
554 | (when resolver | |
555 | (funcall resolver element wsdl)))) | |
556 | ||
557 | (defun soap-resolve-references-for-sequence-type (type wsdl) | |
558 | "Resolve references for a sequence TYPE using WSDL document. | |
559 | See also `soap-resolve-references-for-element' and | |
560 | `soap-wsdl-resolve-references'" | |
561 | (let ((parent (soap-sequence-type-parent type))) | |
562 | (when (or (consp parent) (stringp parent)) | |
563 | (setf (soap-sequence-type-parent type) | |
564 | (soap-wsdl-get parent wsdl 'soap-type-p)))) | |
565 | (dolist (element (soap-sequence-type-elements type)) | |
566 | (let ((element-type (soap-sequence-element-type element))) | |
567 | (cond ((or (consp element-type) (stringp element-type)) | |
568 | (setf (soap-sequence-element-type element) | |
569 | (soap-wsdl-get element-type wsdl 'soap-type-p))) | |
570 | ((soap-element-p element-type) | |
571 | ;; since the element already has a child element, it | |
572 | ;; could be an inline structure. we must resolve | |
573 | ;; references in it, because it might not be reached by | |
574 | ;; scanning the wsdl names. | |
575 | (soap-resolve-references-for-element element-type wsdl)))))) | |
576 | ||
577 | (defun soap-resolve-references-for-array-type (type wsdl) | |
578 | "Resolve references for an array TYPE using WSDL. | |
579 | See also `soap-resolve-references-for-element' and | |
580 | `soap-wsdl-resolve-references'" | |
581 | (let ((element-type (soap-array-type-element-type type))) | |
582 | (when (or (consp element-type) (stringp element-type)) | |
583 | (setf (soap-array-type-element-type type) | |
584 | (soap-wsdl-get element-type wsdl 'soap-type-p))))) | |
585 | ||
586 | (defun soap-resolve-references-for-message (message wsdl) | |
587 | "Resolve references for a MESSAGE type using the WSDL document. | |
588 | See also `soap-resolve-references-for-element' and | |
589 | `soap-wsdl-resolve-references'" | |
590 | (let (resolved-parts) | |
591 | (dolist (part (soap-message-parts message)) | |
592 | (let ((name (car part)) | |
593 | (type (cdr part))) | |
594 | (when (stringp name) | |
595 | (setq name (intern name))) | |
596 | (when (or (consp type) (stringp type)) | |
597 | (setq type (soap-wsdl-get type wsdl 'soap-type-p))) | |
598 | (push (cons name type) resolved-parts))) | |
599 | (setf (soap-message-parts message) (nreverse resolved-parts)))) | |
600 | ||
601 | (defun soap-resolve-references-for-operation (operation wsdl) | |
602 | "Resolve references for an OPERATION type using the WSDL document. | |
603 | See also `soap-resolve-references-for-element' and | |
604 | `soap-wsdl-resolve-references'" | |
605 | (let ((input (soap-operation-input operation)) | |
606 | (counter 0)) | |
607 | (let ((name (car input)) | |
608 | (message (cdr input))) | |
609 | ;; Name this part if it was not named | |
610 | (when (or (null name) (equal name "")) | |
611 | (setq name (format "in%d" (incf counter)))) | |
612 | (when (or (consp message) (stringp message)) | |
613 | (setf (soap-operation-input operation) | |
88ae2870 MA |
614 | (cons (intern name) |
615 | (soap-wsdl-get message wsdl 'soap-message-p)))))) | |
16d2ff89 MA |
616 | |
617 | (let ((output (soap-operation-output operation)) | |
618 | (counter 0)) | |
619 | (let ((name (car output)) | |
620 | (message (cdr output))) | |
621 | (when (or (null name) (equal name "")) | |
622 | (setq name (format "out%d" (incf counter)))) | |
623 | (when (or (consp message) (stringp message)) | |
624 | (setf (soap-operation-output operation) | |
88ae2870 MA |
625 | (cons (intern name) |
626 | (soap-wsdl-get message wsdl 'soap-message-p)))))) | |
16d2ff89 MA |
627 | |
628 | (let ((resolved-faults nil) | |
629 | (counter 0)) | |
630 | (dolist (fault (soap-operation-faults operation)) | |
631 | (let ((name (car fault)) | |
632 | (message (cdr fault))) | |
633 | (when (or (null name) (equal name "")) | |
634 | (setq name (format "fault%d" (incf counter)))) | |
635 | (if (or (consp message) (stringp message)) | |
88ae2870 MA |
636 | (push (cons (intern name) |
637 | (soap-wsdl-get message wsdl 'soap-message-p)) | |
16d2ff89 MA |
638 | resolved-faults) |
639 | (push fault resolved-faults)))) | |
640 | (setf (soap-operation-faults operation) resolved-faults)) | |
641 | ||
642 | (when (= (length (soap-operation-parameter-order operation)) 0) | |
643 | (setf (soap-operation-parameter-order operation) | |
644 | (mapcar 'car (soap-message-parts | |
645 | (cdr (soap-operation-input operation)))))) | |
88ae2870 | 646 | |
16d2ff89 MA |
647 | (setf (soap-operation-parameter-order operation) |
648 | (mapcar (lambda (p) | |
649 | (if (stringp p) | |
650 | (intern p) | |
651 | p)) | |
652 | (soap-operation-parameter-order operation)))) | |
653 | ||
654 | (defun soap-resolve-references-for-binding (binding wsdl) | |
655 | "Resolve references for a BINDING type using the WSDL document. | |
656 | See also `soap-resolve-references-for-element' and | |
657 | `soap-wsdl-resolve-references'" | |
658 | (when (or (consp (soap-binding-port-type binding)) | |
659 | (stringp (soap-binding-port-type binding))) | |
660 | (setf (soap-binding-port-type binding) | |
88ae2870 MA |
661 | (soap-wsdl-get (soap-binding-port-type binding) |
662 | wsdl 'soap-port-type-p))) | |
16d2ff89 MA |
663 | |
664 | (let ((port-ops (soap-port-type-operations (soap-binding-port-type binding)))) | |
665 | (maphash (lambda (k v) | |
666 | (setf (soap-bound-operation-operation v) | |
667 | (soap-namespace-get k port-ops 'soap-operation-p))) | |
668 | (soap-binding-operations binding)))) | |
669 | ||
670 | (defun soap-resolve-references-for-port (port wsdl) | |
671 | "Resolve references for a PORT type using the WSDL document. | |
672 | See also `soap-resolve-references-for-element' and | |
673 | `soap-wsdl-resolve-references'" | |
674 | (when (or (consp (soap-port-binding port)) | |
675 | (stringp (soap-port-binding port))) | |
676 | (setf (soap-port-binding port) | |
677 | (soap-wsdl-get (soap-port-binding port) wsdl 'soap-binding-p)))) | |
678 | ||
679 | ;; Install resolvers for our types | |
680 | (progn | |
681 | (put (aref (make-soap-sequence-type) 0) 'soap-resolve-references | |
682 | 'soap-resolve-references-for-sequence-type) | |
683 | (put (aref (make-soap-array-type) 0) 'soap-resolve-references | |
684 | 'soap-resolve-references-for-array-type) | |
685 | (put (aref (make-soap-message) 0) 'soap-resolve-references | |
686 | 'soap-resolve-references-for-message) | |
687 | (put (aref (make-soap-operation) 0) 'soap-resolve-references | |
688 | 'soap-resolve-references-for-operation) | |
689 | (put (aref (make-soap-binding) 0) 'soap-resolve-references | |
690 | 'soap-resolve-references-for-binding) | |
691 | (put (aref (make-soap-port) 0) 'soap-resolve-references | |
692 | 'soap-resolve-references-for-port)) | |
693 | ||
694 | (defun soap-wsdl-resolve-references (wsdl) | |
695 | "Resolve all references inside the WSDL structure. | |
696 | ||
697 | When the WSDL elements are created from the XML document, they | |
698 | refer to each other by name. For example, the ELEMENT-TYPE slot | |
699 | of an SOAP-ARRAY-TYPE will contain the name of the element and | |
700 | the user would have to call `soap-wsdl-get' to obtain the actual | |
701 | element. | |
702 | ||
703 | After the entire document is loaded, we resolve all these | |
704 | references to the actual elements they refer to so that at | |
705 | runtime, we don't have to call `soap-wsdl-get' each time we | |
706 | traverse an element tree." | |
707 | (let ((nprocessed 0) | |
708 | (nstag-id 0) | |
709 | (alias-table (soap-wsdl-alias-table wsdl))) | |
710 | (dolist (ns (soap-wsdl-namespaces wsdl)) | |
711 | (let ((nstag (car-safe (rassoc (soap-namespace-name ns) alias-table)))) | |
712 | (unless nstag | |
713 | ;; If this namespace does not have an alias, create one for it. | |
714 | (catch 'done | |
715 | (while t | |
716 | (setq nstag (format "ns%d" (incf nstag-id))) | |
717 | (unless (assoc nstag alias-table) | |
718 | (soap-wsdl-add-alias nstag (soap-namespace-name ns) wsdl) | |
719 | (throw 'done t))))) | |
720 | ||
721 | (maphash (lambda (name element) | |
722 | (cond ((soap-element-p element) ; skip links | |
723 | (incf nprocessed) | |
724 | (soap-resolve-references-for-element element wsdl) | |
725 | (setf (soap-element-namespace-tag element) nstag)) | |
726 | ((listp element) | |
727 | (dolist (e element) | |
728 | (when (soap-element-p e) | |
729 | (incf nprocessed) | |
730 | (soap-resolve-references-for-element e wsdl) | |
731 | (setf (soap-element-namespace-tag e) nstag)))))) | |
c53dc7fc | 732 | (soap-namespace-elements ns))))) |
16d2ff89 MA |
733 | wsdl) |
734 | ||
735 | ;;;;; Loading WSDL from XML documents | |
736 | ||
737 | (defun soap-load-wsdl-from-url (url) | |
738 | "Load a WSDL document from URL and return it. | |
739 | The returned WSDL document needs to be used for `soap-invoke' | |
740 | calls." | |
741 | (let ((url-request-method "GET") | |
742 | (url-package-name "soap-client.el") | |
743 | (url-package-version "1.0") | |
744 | (url-mime-charset-string "utf-8;q=1, iso-8859-1;q=0.5") | |
745 | (url-request-coding-system 'utf-8) | |
746 | (url-http-attempt-keepalives nil)) | |
747 | (let ((buffer (url-retrieve-synchronously url))) | |
748 | (with-current-buffer buffer | |
749 | (declare (special url-http-response-status)) | |
750 | (if (> url-http-response-status 299) | |
751 | (error "Error retrieving WSDL: %s" url-http-response-status)) | |
752 | (let ((mime-part (mm-dissect-buffer t t))) | |
753 | (unless mime-part | |
754 | (error "Failed to decode response from server")) | |
755 | (unless (equal (car (mm-handle-type mime-part)) "text/xml") | |
756 | (error "Server response is not an XML document")) | |
757 | (with-temp-buffer | |
758 | (mm-insert-part mime-part) | |
759 | (let ((wsdl-xml (car (xml-parse-region (point-min) (point-max))))) | |
760 | (prog1 | |
761 | (let ((wsdl (soap-parse-wsdl wsdl-xml))) | |
762 | (setf (soap-wsdl-origin wsdl) url) | |
763 | wsdl) | |
764 | (kill-buffer buffer))))))))) | |
765 | ||
766 | (defun soap-load-wsdl (file) | |
767 | "Load a WSDL document from FILE and return it." | |
768 | (with-temp-buffer | |
769 | (insert-file-contents file) | |
770 | (let ((xml (car (xml-parse-region (point-min) (point-max))))) | |
771 | (let ((wsdl (soap-parse-wsdl xml))) | |
772 | (setf (soap-wsdl-origin wsdl) file) | |
773 | wsdl)))) | |
774 | ||
775 | (defun soap-parse-wsdl (node) | |
776 | "Construct a WSDL structure from NODE, which is an XML document." | |
777 | (soap-with-local-xmlns node | |
778 | ||
779 | (assert (eq (soap-l2wk (xml-node-name node)) 'wsdl:definitions) | |
780 | nil | |
781 | "soap-parse-wsdl: expecting wsdl:definitions node, got %s" | |
782 | (soap-l2wk (xml-node-name node))) | |
783 | ||
784 | (let ((wsdl (make-soap-wsdl))) | |
785 | ||
786 | ;; Add the local alias table to the wsdl document -- it will be used for | |
787 | ;; all types in this document even after we finish parsing it. | |
274c2d34 | 788 | (setf (soap-wsdl-alias-table wsdl) soap-local-xmlns) |
16d2ff89 MA |
789 | |
790 | ;; Add the XSD types to the wsdl document | |
791 | (let ((ns (soap-default-xsd-types))) | |
792 | (soap-wsdl-add-namespace ns wsdl) | |
793 | (soap-wsdl-add-alias "xsd" (soap-namespace-name ns) wsdl)) | |
794 | ||
795 | ;; Add the soapenc types to the wsdl document | |
796 | (let ((ns (soap-default-soapenc-types))) | |
797 | (soap-wsdl-add-namespace ns wsdl) | |
798 | (soap-wsdl-add-alias "soapenc" (soap-namespace-name ns) wsdl)) | |
799 | ||
800 | ;; Find all the 'xsd:schema nodes which are children of wsdl:types nodes | |
801 | ;; and build our type-library | |
802 | ||
803 | (let ((types (car (soap-xml-get-children1 node 'wsdl:types)))) | |
804 | (dolist (node (xml-node-children types)) | |
805 | ;; We cannot use (xml-get-children node (soap-wk2l 'xsd:schema)) | |
806 | ;; because each node can install its own alias type so the schema | |
807 | ;; nodes might have a different prefix. | |
808 | (when (consp node) | |
809 | (soap-with-local-xmlns node | |
810 | (when (eq (soap-l2wk (xml-node-name node)) 'xsd:schema) | |
811 | (soap-wsdl-add-namespace (soap-parse-schema node) wsdl)))))) | |
812 | ||
813 | (let ((ns (make-soap-namespace :name (soap-get-target-namespace node)))) | |
814 | (dolist (node (soap-xml-get-children1 node 'wsdl:message)) | |
815 | (soap-namespace-put (soap-parse-message node) ns)) | |
816 | ||
817 | (dolist (node (soap-xml-get-children1 node 'wsdl:portType)) | |
818 | (let ((port-type (soap-parse-port-type node))) | |
819 | (soap-namespace-put port-type ns) | |
88ae2870 MA |
820 | (soap-wsdl-add-namespace |
821 | (soap-port-type-operations port-type) wsdl))) | |
16d2ff89 MA |
822 | |
823 | (dolist (node (soap-xml-get-children1 node 'wsdl:binding)) | |
824 | (soap-namespace-put (soap-parse-binding node) ns)) | |
825 | ||
826 | (dolist (node (soap-xml-get-children1 node 'wsdl:service)) | |
827 | (dolist (node (soap-xml-get-children1 node 'wsdl:port)) | |
828 | (let ((name (xml-get-attribute node 'name)) | |
829 | (binding (xml-get-attribute node 'binding)) | |
88ae2870 MA |
830 | (url (let ((n (car (soap-xml-get-children1 |
831 | node 'wsdlsoap:address)))) | |
16d2ff89 MA |
832 | (xml-get-attribute n 'location)))) |
833 | (let ((port (make-soap-port | |
88ae2870 MA |
834 | :name name :binding (soap-l2fq binding 'tns) |
835 | :service-url url))) | |
16d2ff89 MA |
836 | (soap-namespace-put port ns) |
837 | (push port (soap-wsdl-ports wsdl)))))) | |
838 | ||
839 | (soap-wsdl-add-namespace ns wsdl)) | |
840 | ||
841 | (soap-wsdl-resolve-references wsdl) | |
842 | ||
843 | wsdl))) | |
844 | ||
845 | (defun soap-parse-schema (node) | |
846 | "Parse a schema NODE. | |
847 | Return a SOAP-NAMESPACE containing the elements." | |
848 | (soap-with-local-xmlns node | |
849 | (assert (eq (soap-l2wk (xml-node-name node)) 'xsd:schema) | |
850 | nil | |
851 | "soap-parse-schema: expecting an xsd:schema node, got %s" | |
852 | (soap-l2wk (xml-node-name node))) | |
853 | (let ((ns (make-soap-namespace :name (soap-get-target-namespace node)))) | |
854 | ;; NOTE: we only extract the complexTypes from the schema, we wouldn't | |
855 | ;; know how to handle basic types beyond the built in ones anyway. | |
856 | (dolist (node (soap-xml-get-children1 node 'xsd:complexType)) | |
857 | (soap-namespace-put (soap-parse-complex-type node) ns)) | |
858 | ||
859 | (dolist (node (soap-xml-get-children1 node 'xsd:element)) | |
860 | (soap-namespace-put (soap-parse-schema-element node) ns)) | |
861 | ||
862 | ns))) | |
863 | ||
864 | (defun soap-parse-schema-element (node) | |
865 | "Parse NODE and construct a schema element from it." | |
866 | (assert (eq (soap-l2wk (xml-node-name node)) 'xsd:element) | |
867 | nil | |
868 | "soap-parse-schema-element: expecting xsd:element node, got %s" | |
869 | (soap-l2wk (xml-node-name node))) | |
870 | (let ((name (xml-get-attribute-or-nil node 'name)) | |
871 | type) | |
872 | ;; A schema element that contains an inline complex type -- | |
873 | ;; construct the actual complex type for it. | |
874 | (let ((type-node (soap-xml-get-children1 node 'xsd:complexType))) | |
875 | (when (> (length type-node) 0) | |
88ae2870 MA |
876 | (assert (= (length type-node) 1)) ; only one complex type |
877 | ; definition per element | |
16d2ff89 MA |
878 | (setq type (soap-parse-complex-type (car type-node))))) |
879 | (setf (soap-element-name type) name) | |
880 | type)) | |
881 | ||
882 | (defun soap-parse-complex-type (node) | |
883 | "Parse NODE and construct a complex type from it." | |
884 | (assert (eq (soap-l2wk (xml-node-name node)) 'xsd:complexType) | |
885 | nil | |
886 | "soap-parse-complex-type: expecting xsd:complexType node, got %s" | |
887 | (soap-l2wk (xml-node-name node))) | |
888 | (let ((name (xml-get-attribute-or-nil node 'name)) | |
889 | ;; Use a dummy type for the complex type, it will be replaced | |
890 | ;; with the real type below, except when the complex type node | |
891 | ;; is empty... | |
892 | (type (make-soap-sequence-type :elements nil))) | |
893 | (dolist (c (xml-node-children node)) | |
894 | (when (consp c) ; skip string nodes, which are whitespace | |
895 | (let ((node-name (soap-l2wk (xml-node-name c)))) | |
896 | (cond | |
d733e817 MA |
897 | ;; The difference between xsd:all and xsd:sequence is that fields |
898 | ;; in xsd:all are not ordered and they can occur only once. We | |
899 | ;; don't care about that difference in soap-client.el | |
900 | ((or (eq node-name 'xsd:sequence) | |
901 | (eq node-name 'xsd:all)) | |
16d2ff89 MA |
902 | (setq type (soap-parse-complex-type-sequence c))) |
903 | ((eq node-name 'xsd:complexContent) | |
904 | (setq type (soap-parse-complex-type-complex-content c))) | |
905 | ((eq node-name 'xsd:attribute) | |
906 | ;; The name of this node comes from an attribute tag | |
907 | (let ((n (xml-get-attribute-or-nil c 'name))) | |
908 | (setq name n))) | |
909 | (t | |
910 | (error "Unknown node type %s" node-name)))))) | |
911 | (setf (soap-element-name type) name) | |
912 | type)) | |
913 | ||
914 | (defun soap-parse-sequence (node) | |
915 | "Parse NODE and a list of sequence elements that it defines. | |
916 | NODE is assumed to be an xsd:sequence node. In that case, each | |
917 | of its children is assumed to be a sequence element. Each | |
918 | sequence element is parsed constructing the corresponding type. | |
919 | A list of these types is returned." | |
d733e817 MA |
920 | (assert (let ((n (soap-l2wk (xml-node-name node)))) |
921 | (memq n '(xsd:sequence xsd:all))) | |
16d2ff89 | 922 | nil |
d733e817 | 923 | "soap-parse-sequence: expecting xsd:sequence or xsd:all node, got %s" |
16d2ff89 MA |
924 | (soap-l2wk (xml-node-name node))) |
925 | (let (elements) | |
926 | (dolist (e (soap-xml-get-children1 node 'xsd:element)) | |
927 | (let ((name (xml-get-attribute-or-nil e 'name)) | |
928 | (type (xml-get-attribute-or-nil e 'type)) | |
929 | (nillable? (or (equal (xml-get-attribute-or-nil e 'nillable) "true") | |
930 | (let ((e (xml-get-attribute-or-nil e 'minOccurs))) | |
931 | (and e (equal e "0"))))) | |
932 | (multiple? (let ((e (xml-get-attribute-or-nil e 'maxOccurs))) | |
933 | (and e (not (equal e "1")))))) | |
934 | (if type | |
935 | (setq type (soap-l2fq type 'tns)) | |
936 | ||
937 | ;; The node does not have a type, maybe it has a complexType | |
938 | ;; defined inline... | |
939 | (let ((type-node (soap-xml-get-children1 e 'xsd:complexType))) | |
940 | (when (> (length type-node) 0) | |
941 | (assert (= (length type-node) 1) | |
942 | nil | |
943 | "only one complex type definition per element supported") | |
944 | (setq type (soap-parse-complex-type (car type-node)))))) | |
945 | ||
946 | (push (make-soap-sequence-element | |
88ae2870 MA |
947 | :name (intern name) :type type :nillable? nillable? |
948 | :multiple? multiple?) | |
16d2ff89 MA |
949 | elements))) |
950 | (nreverse elements))) | |
951 | ||
952 | (defun soap-parse-complex-type-sequence (node) | |
953 | "Parse NODE as a sequence type." | |
954 | (let ((elements (soap-parse-sequence node))) | |
955 | (make-soap-sequence-type :elements elements))) | |
956 | ||
957 | (defun soap-parse-complex-type-complex-content (node) | |
958 | "Parse NODE as a xsd:complexContent node. | |
959 | A sequence or an array type is returned depending on the actual | |
960 | contents." | |
961 | (assert (eq (soap-l2wk (xml-node-name node)) 'xsd:complexContent) | |
962 | nil | |
963 | "soap-parse-complex-type-complex-content: expecting xsd:complexContent node, got %s" | |
964 | (soap-l2wk (xml-node-name node))) | |
965 | (let (array? parent elements) | |
966 | (let ((extension (car-safe (soap-xml-get-children1 node 'xsd:extension))) | |
88ae2870 MA |
967 | (restriction (car-safe |
968 | (soap-xml-get-children1 node 'xsd:restriction)))) | |
16d2ff89 MA |
969 | ;; a complex content node is either an extension or a restriction |
970 | (cond (extension | |
971 | (setq parent (xml-get-attribute-or-nil extension 'base)) | |
972 | (setq elements (soap-parse-sequence | |
88ae2870 MA |
973 | (car (soap-xml-get-children1 |
974 | extension 'xsd:sequence))))) | |
16d2ff89 MA |
975 | (restriction |
976 | (let ((base (xml-get-attribute-or-nil restriction 'base))) | |
977 | (assert (equal base "soapenc:Array") | |
978 | nil | |
979 | "restrictions supported only for soapenc:Array types, this is a %s" | |
980 | base)) | |
981 | (setq array? t) | |
88ae2870 MA |
982 | (let ((attribute (car (soap-xml-get-children1 |
983 | restriction 'xsd:attribute)))) | |
984 | (let ((array-type (soap-xml-get-attribute-or-nil1 | |
985 | attribute 'wsdl:arrayType))) | |
16d2ff89 MA |
986 | (when (string-match "^\\(.*\\)\\[\\]$" array-type) |
987 | (setq parent (match-string 1 array-type)))))) | |
988 | ||
989 | (t | |
990 | (error "Unknown complex type")))) | |
991 | ||
992 | (if parent | |
993 | (setq parent (soap-l2fq parent 'tns))) | |
88ae2870 | 994 | |
16d2ff89 MA |
995 | (if array? |
996 | (make-soap-array-type :element-type parent) | |
997 | (make-soap-sequence-type :parent parent :elements elements)))) | |
998 | ||
999 | (defun soap-parse-message (node) | |
1000 | "Parse NODE as a wsdl:message and return the corresponding type." | |
1001 | (assert (eq (soap-l2wk (xml-node-name node)) 'wsdl:message) | |
1002 | nil | |
1003 | "soap-parse-message: expecting wsdl:message node, got %s" | |
1004 | (soap-l2wk (xml-node-name node))) | |
1005 | (let ((name (xml-get-attribute-or-nil node 'name)) | |
1006 | parts) | |
1007 | (dolist (p (soap-xml-get-children1 node 'wsdl:part)) | |
1008 | (let ((name (xml-get-attribute-or-nil p 'name)) | |
1009 | (type (xml-get-attribute-or-nil p 'type)) | |
1010 | (element (xml-get-attribute-or-nil p 'element))) | |
1011 | ||
1012 | (when type | |
1013 | (setq type (soap-l2fq type 'tns))) | |
1014 | ||
1015 | (when element | |
1016 | (setq element (soap-l2fq element 'tns))) | |
1017 | ||
1018 | (push (cons name (or type element)) parts))) | |
1019 | (make-soap-message :name name :parts (nreverse parts)))) | |
1020 | ||
1021 | (defun soap-parse-port-type (node) | |
1022 | "Parse NODE as a wsdl:portType and return the corresponding port." | |
1023 | (assert (eq (soap-l2wk (xml-node-name node)) 'wsdl:portType) | |
1024 | nil | |
1025 | "soap-parse-port-type: expecting wsdl:portType node got %s" | |
1026 | (soap-l2wk (xml-node-name node))) | |
1027 | (let ((ns (make-soap-namespace | |
1028 | :name (concat "urn:" (xml-get-attribute node 'name))))) | |
1029 | (dolist (node (soap-xml-get-children1 node 'wsdl:operation)) | |
1030 | (let ((o (soap-parse-operation node))) | |
1031 | ||
88ae2870 MA |
1032 | (let ((other-operation (soap-namespace-get |
1033 | (soap-element-name o) ns 'soap-operation-p))) | |
16d2ff89 MA |
1034 | (if other-operation |
1035 | ;; Unfortunately, the Confluence WSDL defines two operations | |
1036 | ;; named "search" which differ only in parameter names... | |
88ae2870 MA |
1037 | (soap-warning "Discarding duplicate operation: %s" |
1038 | (soap-element-name o)) | |
16d2ff89 MA |
1039 | |
1040 | (progn | |
1041 | (soap-namespace-put o ns) | |
1042 | ||
1043 | ;; link all messages from this namespace, as this namespace | |
1044 | ;; will be used for decoding the response. | |
1045 | (destructuring-bind (name . message) (soap-operation-input o) | |
1046 | (soap-namespace-put-link name message ns)) | |
1047 | ||
1048 | (destructuring-bind (name . message) (soap-operation-output o) | |
1049 | (soap-namespace-put-link name message ns)) | |
1050 | ||
1051 | (dolist (fault (soap-operation-faults o)) | |
1052 | (destructuring-bind (name . message) fault | |
1053 | (soap-namespace-put-link name message ns 'replace))) | |
1054 | ||
1055 | ))))) | |
1056 | ||
1057 | (make-soap-port-type :name (xml-get-attribute node 'name) | |
1058 | :operations ns))) | |
1059 | ||
1060 | (defun soap-parse-operation (node) | |
1061 | "Parse NODE as a wsdl:operation and return the corresponding type." | |
1062 | (assert (eq (soap-l2wk (xml-node-name node)) 'wsdl:operation) | |
1063 | nil | |
1064 | "soap-parse-operation: expecting wsdl:operation node, got %s" | |
1065 | (soap-l2wk (xml-node-name node))) | |
1066 | (let ((name (xml-get-attribute node 'name)) | |
88ae2870 MA |
1067 | (parameter-order (split-string |
1068 | (xml-get-attribute node 'parameterOrder))) | |
16d2ff89 MA |
1069 | input output faults) |
1070 | (dolist (n (xml-node-children node)) | |
1071 | (when (consp n) ; skip string nodes which are whitespace | |
1072 | (let ((node-name (soap-l2wk (xml-node-name n)))) | |
1073 | (cond | |
1074 | ((eq node-name 'wsdl:input) | |
1075 | (let ((message (xml-get-attribute n 'message)) | |
1076 | (name (xml-get-attribute n 'name))) | |
1077 | (setq input (cons name (soap-l2fq message 'tns))))) | |
1078 | ((eq node-name 'wsdl:output) | |
1079 | (let ((message (xml-get-attribute n 'message)) | |
1080 | (name (xml-get-attribute n 'name))) | |
1081 | (setq output (cons name (soap-l2fq message 'tns))))) | |
1082 | ((eq node-name 'wsdl:fault) | |
1083 | (let ((message (xml-get-attribute n 'message)) | |
1084 | (name (xml-get-attribute n 'name))) | |
1085 | (push (cons name (soap-l2fq message 'tns)) faults))))))) | |
1086 | (make-soap-operation | |
1087 | :name name | |
1088 | :parameter-order parameter-order | |
1089 | :input input | |
1090 | :output output | |
1091 | :faults (nreverse faults)))) | |
1092 | ||
1093 | (defun soap-parse-binding (node) | |
1094 | "Parse NODE as a wsdl:binding and return the corresponding type." | |
1095 | (assert (eq (soap-l2wk (xml-node-name node)) 'wsdl:binding) | |
1096 | nil | |
1097 | "soap-parse-binding: expecting wsdl:binding node, got %s" | |
1098 | (soap-l2wk (xml-node-name node))) | |
1099 | (let ((name (xml-get-attribute node 'name)) | |
1100 | (type (xml-get-attribute node 'type))) | |
88ae2870 MA |
1101 | (let ((binding (make-soap-binding :name name |
1102 | :port-type (soap-l2fq type 'tns)))) | |
16d2ff89 MA |
1103 | (dolist (wo (soap-xml-get-children1 node 'wsdl:operation)) |
1104 | (let ((name (xml-get-attribute wo 'name)) | |
1105 | soap-action | |
1106 | use) | |
1107 | (dolist (so (soap-xml-get-children1 wo 'wsdlsoap:operation)) | |
1108 | (setq soap-action (xml-get-attribute-or-nil so 'soapAction))) | |
1109 | ||
1110 | ;; Search a wsdlsoap:body node and find a "use" tag. The | |
1111 | ;; same use tag is assumed to be present for both input and | |
1112 | ;; output types (although the WDSL spec allows separate | |
1113 | ;; "use"-s for each of them... | |
1114 | ||
1115 | (dolist (i (soap-xml-get-children1 wo 'wsdl:input)) | |
1116 | (dolist (b (soap-xml-get-children1 i 'wsdlsoap:body)) | |
1117 | (setq use (or use | |
1118 | (xml-get-attribute-or-nil b 'use))))) | |
1119 | ||
1120 | (unless use | |
1121 | (dolist (i (soap-xml-get-children1 wo 'wsdl:output)) | |
1122 | (dolist (b (soap-xml-get-children1 i 'wsdlsoap:body)) | |
1123 | (setq use (or use | |
1124 | (xml-get-attribute-or-nil b 'use)))))) | |
1125 | ||
1126 | (puthash name (make-soap-bound-operation :operation name | |
1127 | :soap-action soap-action | |
1128 | :use (and use (intern use))) | |
1129 | (soap-binding-operations binding)))) | |
1130 | binding))) | |
1131 | ||
1132 | ;;;; SOAP type decoding | |
1133 | ||
274c2d34 | 1134 | (defvar soap-multi-refs nil |
16d2ff89 MA |
1135 | "The list of multi-ref nodes in the current SOAP response. |
1136 | This is a dynamically bound variable used during decoding the | |
1137 | SOAP response.") | |
1138 | ||
274c2d34 | 1139 | (defvar soap-decoded-multi-refs nil |
16d2ff89 MA |
1140 | "List of decoded multi-ref nodes in the current SOAP response. |
1141 | This is a dynamically bound variable used during decoding the | |
1142 | SOAP response.") | |
1143 | ||
274c2d34 | 1144 | (defvar soap-current-wsdl nil |
16d2ff89 MA |
1145 | "The current WSDL document used when decoding the SOAP response. |
1146 | This is a dynamically bound variable.") | |
1147 | ||
1148 | (defun soap-decode-type (type node) | |
1149 | "Use TYPE (an xsd type) to decode the contents of NODE. | |
1150 | ||
1151 | NODE is an XML node, representing some SOAP encoded value or a | |
1152 | reference to another XML node (a multiRef). This function will | |
1153 | resolve the multiRef reference, if any, than call a TYPE specific | |
1154 | decode function to perform the actual decoding." | |
1155 | (let ((href (xml-get-attribute-or-nil node 'href))) | |
1156 | (cond (href | |
1157 | (catch 'done | |
1158 | ;; NODE is actually a HREF, find the target and decode that. | |
1159 | ;; Check first if we already decoded this multiref. | |
1160 | ||
274c2d34 | 1161 | (let ((decoded (cdr (assoc href soap-decoded-multi-refs)))) |
16d2ff89 MA |
1162 | (when decoded |
1163 | (throw 'done decoded))) | |
1164 | ||
1165 | (string-match "^#\\(.*\\)$" href) ; TODO: check that it matched | |
1166 | ||
1167 | (let ((id (match-string 1 href))) | |
274c2d34 | 1168 | (dolist (mr soap-multi-refs) |
16d2ff89 MA |
1169 | (let ((mrid (xml-get-attribute mr 'id))) |
1170 | (when (equal id mrid) | |
1171 | ;; recurse here, in case there are multiple HREF's | |
1172 | (let ((decoded (soap-decode-type type mr))) | |
274c2d34 | 1173 | (push (cons href decoded) soap-decoded-multi-refs) |
16d2ff89 MA |
1174 | (throw 'done decoded))))) |
1175 | (error "Cannot find href %s" href)))) | |
1176 | (t | |
1177 | (soap-with-local-xmlns node | |
1178 | (if (equal (soap-xml-get-attribute-or-nil1 node 'xsi:nil) "true") | |
1179 | nil | |
1180 | (let ((decoder (get (aref type 0) 'soap-decoder))) | |
88ae2870 MA |
1181 | (assert decoder nil "no soap-decoder for %s type" |
1182 | (aref type 0)) | |
16d2ff89 MA |
1183 | (funcall decoder type node)))))))) |
1184 | ||
1185 | (defun soap-decode-any-type (node) | |
1186 | "Decode NODE using type information inside it." | |
1187 | ;; If the NODE has type information, we use that... | |
1188 | (let ((type (soap-xml-get-attribute-or-nil1 node 'xsi:type))) | |
1189 | (if type | |
274c2d34 | 1190 | (let ((wtype (soap-wsdl-get type soap-current-wsdl 'soap-type-p))) |
16d2ff89 MA |
1191 | (if wtype |
1192 | (soap-decode-type wtype node) | |
1193 | ;; The node has type info encoded in it, but we don't know how | |
1194 | ;; to decode it... | |
1195 | (error "Soap-decode-any-type: node has unknown type: %s" type))) | |
1196 | ||
1197 | ;; No type info in the node... | |
1198 | ||
1199 | (let ((contents (xml-node-children node))) | |
1200 | (if (and (= (length contents) 1) (stringp (car contents))) | |
1201 | ;; contents is just a string | |
1202 | (car contents) | |
1203 | ||
1204 | ;; we assume the NODE is a sequence with every element a | |
1205 | ;; structure name | |
1206 | (let (result) | |
1207 | (dolist (element contents) | |
1208 | (let ((key (xml-node-name element)) | |
1209 | (value (soap-decode-any-type element))) | |
1210 | (push (cons key value) result))) | |
1211 | (nreverse result))))))) | |
1212 | ||
1213 | (defun soap-decode-array (node) | |
1214 | "Decode NODE as an Array using type information inside it." | |
1215 | (let ((type (soap-xml-get-attribute-or-nil1 node 'soapenc:arrayType)) | |
1216 | (wtype nil) | |
1217 | (contents (xml-node-children node)) | |
1218 | result) | |
1219 | (when type | |
1220 | ;; Type is in the format "someType[NUM]" where NUM is the number of | |
1221 | ;; elements in the array. We discard the [NUM] part. | |
1222 | (setq type (replace-regexp-in-string "\\[[0-9]+\\]\\'" "" type)) | |
274c2d34 | 1223 | (setq wtype (soap-wsdl-get type soap-current-wsdl 'soap-type-p)) |
16d2ff89 MA |
1224 | (unless wtype |
1225 | ;; The node has type info encoded in it, but we don't know how to | |
1226 | ;; decode it... | |
1227 | (error "Soap-decode-array: node has unknown type: %s" type))) | |
1228 | (dolist (e contents) | |
1229 | (when (consp e) | |
1230 | (push (if wtype | |
1231 | (soap-decode-type wtype e) | |
1232 | (soap-decode-any-type e)) | |
1233 | result))) | |
1234 | (nreverse result))) | |
1235 | ||
1236 | (defun soap-decode-basic-type (type node) | |
1237 | "Use TYPE to decode the contents of NODE. | |
1238 | TYPE is a `soap-basic-type' struct, and NODE is an XML document. | |
1239 | A LISP value is returned based on the contents of NODE and the | |
1240 | type-info stored in TYPE." | |
1241 | (let ((contents (xml-node-children node)) | |
1242 | (type-kind (soap-basic-type-kind type))) | |
1243 | ||
1244 | (if (null contents) | |
1245 | nil | |
1246 | (ecase type-kind | |
1247 | (string (car contents)) | |
1248 | (dateTime (car contents)) ; TODO: convert to a date time | |
1249 | ((long int float) (string-to-number (car contents))) | |
1250 | (boolean (string= (downcase (car contents)) "true")) | |
1251 | (base64Binary (base64-decode-string (car contents))) | |
1252 | (anyType (soap-decode-any-type node)) | |
1253 | (Array (soap-decode-array node)))))) | |
1254 | ||
1255 | (defun soap-decode-sequence-type (type node) | |
1256 | "Use TYPE to decode the contents of NODE. | |
1257 | TYPE is assumed to be a sequence type and an ALIST with the | |
1258 | contents of the NODE is returned." | |
1259 | (let ((result nil) | |
1260 | (parent (soap-sequence-type-parent type))) | |
1261 | (when parent | |
1262 | (setq result (nreverse (soap-decode-type parent node)))) | |
1263 | (dolist (element (soap-sequence-type-elements type)) | |
1264 | (let ((instance-count 0) | |
1265 | (e-name (soap-sequence-element-name element)) | |
1266 | (e-type (soap-sequence-element-type element))) | |
1267 | (dolist (node (xml-get-children node e-name)) | |
1268 | (incf instance-count) | |
1269 | (push (cons e-name (soap-decode-type e-type node)) result)) | |
1270 | ;; Do some sanity checking | |
1271 | (cond ((and (= instance-count 0) | |
1272 | (not (soap-sequence-element-nillable? element))) | |
1273 | (soap-warning "While decoding %s: missing non-nillable slot %s" | |
1274 | (soap-element-name type) e-name)) | |
1275 | ((and (> instance-count 1) | |
1276 | (not (soap-sequence-element-multiple? element))) | |
1277 | (soap-warning "While decoding %s: multiple slots named %s" | |
1278 | (soap-element-name type) e-name))))) | |
1279 | (nreverse result))) | |
1280 | ||
1281 | (defun soap-decode-array-type (type node) | |
1282 | "Use TYPE to decode the contents of NODE. | |
1283 | TYPE is assumed to be an array type. Arrays are decoded as lists. | |
1284 | This is because it is easier to work with list results in LISP." | |
1285 | (let ((result nil) | |
1286 | (element-type (soap-array-type-element-type type))) | |
1287 | (dolist (node (xml-node-children node)) | |
1288 | (when (consp node) | |
1289 | (push (soap-decode-type element-type node) result))) | |
1290 | (nreverse result))) | |
1291 | ||
1292 | (progn | |
1293 | (put (aref (make-soap-basic-type) 0) | |
1294 | 'soap-decoder 'soap-decode-basic-type) | |
1295 | (put (aref (make-soap-sequence-type) 0) | |
1296 | 'soap-decoder 'soap-decode-sequence-type) | |
1297 | (put (aref (make-soap-array-type) 0) | |
1298 | 'soap-decoder 'soap-decode-array-type)) | |
1299 | ||
1300 | ;;;; Soap Envelope parsing | |
1301 | ||
1302 | (put 'soap-error | |
1303 | 'error-conditions | |
1304 | '(error soap-error)) | |
1305 | (put 'soap-error 'error-message "SOAP error") | |
1306 | ||
1307 | (defun soap-parse-envelope (node operation wsdl) | |
1308 | "Parse the SOAP envelope in NODE and return the response. | |
1309 | OPERATION is the WSDL operation for which we expect the response, | |
1310 | WSDL is used to decode the NODE" | |
1311 | (soap-with-local-xmlns node | |
1312 | (assert (eq (soap-l2wk (xml-node-name node)) 'soap:Envelope) | |
1313 | nil | |
1314 | "soap-parse-envelope: expecting soap:Envelope node, got %s" | |
1315 | (soap-l2wk (xml-node-name node))) | |
1316 | (let ((body (car (soap-xml-get-children1 node 'soap:Body)))) | |
1317 | ||
1318 | (let ((fault (car (soap-xml-get-children1 body 'soap:Fault)))) | |
1319 | (when fault | |
88ae2870 MA |
1320 | (let ((fault-code (let ((n (car (xml-get-children |
1321 | fault 'faultcode)))) | |
16d2ff89 | 1322 | (car-safe (xml-node-children n)))) |
88ae2870 MA |
1323 | (fault-string (let ((n (car (xml-get-children |
1324 | fault 'faultstring)))) | |
16d2ff89 MA |
1325 | (car-safe (xml-node-children n))))) |
1326 | (while t | |
1327 | (signal 'soap-error (list fault-code fault-string)))))) | |
1328 | ||
1329 | ;; First (non string) element of the body is the root node of he | |
1330 | ;; response | |
1331 | (let ((response (if (eq (soap-bound-operation-use operation) 'literal) | |
1332 | ;; For 'literal uses, the response is the actual body | |
1333 | body | |
1334 | ;; ...otherwise the first non string element | |
1335 | ;; of the body is the response | |
1336 | (catch 'found | |
1337 | (dolist (n (xml-node-children body)) | |
1338 | (when (consp n) | |
1339 | (throw 'found n))))))) | |
1340 | (soap-parse-response response operation wsdl body))))) | |
1341 | ||
1342 | (defun soap-parse-response (response-node operation wsdl soap-body) | |
1343 | "Parse RESPONSE-NODE and return the result as a LISP value. | |
1344 | OPERATION is the WSDL operation for which we expect the response, | |
1345 | WSDL is used to decode the NODE. | |
1346 | ||
1347 | SOAP-BODY is the body of the SOAP envelope (of which | |
1348 | RESPONSE-NODE is a sub-node). It is used in case RESPONSE-NODE | |
1349 | reference multiRef parts which are external to RESPONSE-NODE." | |
274c2d34 | 1350 | (let* ((soap-current-wsdl wsdl) |
16d2ff89 MA |
1351 | (op (soap-bound-operation-operation operation)) |
1352 | (use (soap-bound-operation-use operation)) | |
1353 | (message (cdr (soap-operation-output op)))) | |
1354 | ||
1355 | (soap-with-local-xmlns response-node | |
1356 | ||
1357 | (when (eq use 'encoded) | |
1358 | (let* ((received-message-name (soap-l2fq (xml-node-name response-node))) | |
88ae2870 MA |
1359 | (received-message (soap-wsdl-get |
1360 | received-message-name wsdl 'soap-message-p))) | |
16d2ff89 MA |
1361 | (unless (eq received-message message) |
1362 | (error "Unexpected message: got %s, expecting %s" | |
1363 | received-message-name | |
1364 | (soap-element-name message))))) | |
1365 | ||
1366 | (let ((decoded-parts nil) | |
274c2d34 MA |
1367 | (soap-multi-refs (xml-get-children soap-body 'multiRef)) |
1368 | (soap-decoded-multi-refs nil)) | |
16d2ff89 MA |
1369 | |
1370 | (dolist (part (soap-message-parts message)) | |
1371 | (let ((tag (car part)) | |
1372 | (type (cdr part)) | |
1373 | node) | |
1374 | ||
1375 | (setq node | |
1376 | (cond | |
1377 | ((eq use 'encoded) | |
1378 | (car (xml-get-children response-node tag))) | |
1379 | ||
1380 | ((eq use 'literal) | |
1381 | (catch 'found | |
1382 | (let* ((ns-aliases (soap-wsdl-alias-table wsdl)) | |
88ae2870 MA |
1383 | (ns-name (cdr (assoc |
1384 | (soap-element-namespace-tag type) | |
1385 | ns-aliases))) | |
16d2ff89 MA |
1386 | (fqname (cons ns-name (soap-element-name type)))) |
1387 | (dolist (c (xml-node-children response-node)) | |
1388 | (when (consp c) | |
1389 | (soap-with-local-xmlns c | |
88ae2870 MA |
1390 | (when (equal (soap-l2fq (xml-node-name c)) |
1391 | fqname) | |
16d2ff89 MA |
1392 | (throw 'found c)))))))))) |
1393 | ||
1394 | (unless node | |
1395 | (error "Soap-parse-response(%s): cannot find message part %s" | |
1396 | (soap-element-name op) tag)) | |
1397 | (push (soap-decode-type type node) decoded-parts))) | |
1398 | ||
1399 | decoded-parts)))) | |
1400 | ||
1401 | ;;;; SOAP type encoding | |
1402 | ||
274c2d34 | 1403 | (defvar soap-encoded-namespaces nil |
16d2ff89 MA |
1404 | "A list of namespace tags used during encoding a message. |
1405 | This list is populated by `soap-encode-value' and used by | |
1406 | `soap-create-envelope' to add aliases for these namespace to the | |
1407 | XML request. | |
1408 | ||
1409 | This variable is dynamically bound in `soap-create-envelope'.") | |
1410 | ||
1411 | (defun soap-encode-value (xml-tag value type) | |
1412 | "Encode inside an XML-TAG the VALUE using TYPE. | |
1413 | The resulting XML data is inserted in the current buffer | |
1414 | at (point)/ | |
1415 | ||
1416 | TYPE is one of the soap-*-type structures which defines how VALUE | |
1417 | is to be encoded. This is a generic function which finds an | |
1418 | encoder function based on TYPE and calls that encoder to do the | |
1419 | work." | |
1420 | (let ((encoder (get (aref type 0) 'soap-encoder))) | |
1421 | (assert encoder nil "no soap-encoder for %s type" (aref type 0)) | |
1422 | ;; XML-TAG can be a string or a symbol, but we pass only string's to the | |
1423 | ;; encoders | |
1424 | (when (symbolp xml-tag) | |
1425 | (setq xml-tag (symbol-name xml-tag))) | |
1426 | (funcall encoder xml-tag value type)) | |
274c2d34 | 1427 | (add-to-list 'soap-encoded-namespaces (soap-element-namespace-tag type))) |
16d2ff89 MA |
1428 | |
1429 | (defun soap-encode-basic-type (xml-tag value type) | |
1430 | "Encode inside XML-TAG the LISP VALUE according to TYPE. | |
1431 | Do not call this function directly, use `soap-encode-value' | |
1432 | instead." | |
1433 | (let ((xsi-type (soap-element-fq-name type)) | |
1434 | (basic-type (soap-basic-type-kind type))) | |
1435 | ||
1436 | ;; try to classify the type based on the value type and use that type when | |
1437 | ;; encoding | |
1438 | (when (eq basic-type 'anyType) | |
1439 | (cond ((stringp value) | |
1440 | (setq xsi-type "xsd:string" basic-type 'string)) | |
1441 | ((integerp value) | |
1442 | (setq xsi-type "xsd:int" basic-type 'int)) | |
1443 | ((memq value '(t nil)) | |
1444 | (setq xsi-type "xsd:boolean" basic-type 'boolean)) | |
1445 | (t | |
88ae2870 MA |
1446 | (error |
1447 | "Soap-encode-basic-type(%s, %s, %s): cannot classify anyType value" | |
1448 | xml-tag value xsi-type)))) | |
16d2ff89 MA |
1449 | |
1450 | (insert "<" xml-tag " xsi:type=\"" xsi-type "\"") | |
1451 | ||
1452 | ;; We have some ambiguity here, as a nil value represents "false" when the | |
1453 | ;; type is boolean, we will never have a "nil" boolean type... | |
1454 | ||
1455 | (if (or value (eq basic-type 'boolean)) | |
1456 | (progn | |
1457 | (insert ">") | |
1458 | (case basic-type | |
1459 | (string | |
1460 | (unless (stringp value) | |
1461 | (error "Soap-encode-basic-type(%s, %s, %s): not a string value" | |
1462 | xml-tag value xsi-type)) | |
1463 | (insert (url-insert-entities-in-string value))) | |
1464 | ||
1465 | (dateTime | |
1466 | (cond ((and (consp value) ; is there a time-value-p ? | |
1467 | (>= (length value) 2) | |
1468 | (numberp (nth 0 value)) | |
1469 | (numberp (nth 1 value))) | |
88ae2870 MA |
1470 | ;; Value is a (current-time) style value, convert |
1471 | ;; to a string | |
16d2ff89 MA |
1472 | (insert (format-time-string "%Y-%m-%dT%H:%M:%S" value))) |
1473 | ((stringp value) | |
1474 | (insert (url-insert-entities-in-string value))) | |
1475 | (t | |
88ae2870 MA |
1476 | (error |
1477 | "Soap-encode-basic-type(%s, %s, %s): not a dateTime value" | |
1478 | xml-tag value xsi-type)))) | |
16d2ff89 MA |
1479 | |
1480 | (boolean | |
1481 | (unless (memq value '(t nil)) | |
1482 | (error "Soap-encode-basic-type(%s, %s, %s): not a boolean value" | |
1483 | xml-tag value xsi-type)) | |
1484 | (insert (if value "true" "false"))) | |
1485 | ||
1486 | ((long int) | |
1487 | (unless (integerp value) | |
1488 | (error "Soap-encode-basic-type(%s, %s, %s): not an integer value" | |
1489 | xml-tag value xsi-type)) | |
1490 | (insert (number-to-string value))) | |
88ae2870 | 1491 | |
16d2ff89 MA |
1492 | (base64Binary |
1493 | (unless (stringp value) | |
1494 | (error "Soap-encode-basic-type(%s, %s, %s): not a string value" | |
1495 | xml-tag value xsi-type)) | |
1496 | (insert (base64-encode-string value))) | |
1497 | ||
1498 | (otherwise | |
88ae2870 MA |
1499 | (error |
1500 | "Soap-encode-basic-type(%s, %s, %s): don't know how to encode" | |
1501 | xml-tag value xsi-type)))) | |
1502 | ||
16d2ff89 MA |
1503 | (insert " xsi:nil=\"true\">")) |
1504 | (insert "</" xml-tag ">\n"))) | |
1505 | ||
1506 | (defun soap-encode-sequence-type (xml-tag value type) | |
1507 | "Encode inside XML-TAG the LISP VALUE according to TYPE. | |
1508 | Do not call this function directly, use `soap-encode-value' | |
1509 | instead." | |
1510 | (let ((xsi-type (soap-element-fq-name type))) | |
1511 | (insert "<" xml-tag " xsi:type=\"" xsi-type "\"") | |
1512 | (if value | |
1513 | (progn | |
1514 | (insert ">\n") | |
1515 | (let ((parents (list type)) | |
1516 | (parent (soap-sequence-type-parent type))) | |
1517 | ||
1518 | (while parent | |
1519 | (push parent parents) | |
1520 | (setq parent (soap-sequence-type-parent parent))) | |
1521 | ||
1522 | (dolist (type parents) | |
1523 | (dolist (element (soap-sequence-type-elements type)) | |
1524 | (let ((instance-count 0) | |
1525 | (e-name (soap-sequence-element-name element)) | |
1526 | (e-type (soap-sequence-element-type element))) | |
1527 | (dolist (v value) | |
1528 | (when (equal (car v) e-name) | |
1529 | (incf instance-count) | |
1530 | (soap-encode-value e-name (cdr v) e-type))) | |
1531 | ||
1532 | ;; Do some sanity checking | |
1533 | (cond ((and (= instance-count 0) | |
1534 | (not (soap-sequence-element-nillable? element))) | |
88ae2870 MA |
1535 | (soap-warning |
1536 | "While encoding %s: missing non-nillable slot %s" | |
1537 | (soap-element-name type) e-name)) | |
16d2ff89 MA |
1538 | ((and (> instance-count 1) |
1539 | (not (soap-sequence-element-multiple? element))) | |
88ae2870 MA |
1540 | (soap-warning |
1541 | "While encoding %s: multiple slots named %s" | |
1542 | (soap-element-name type) e-name)))))))) | |
16d2ff89 MA |
1543 | (insert " xsi:nil=\"true\">")) |
1544 | (insert "</" xml-tag ">\n"))) | |
1545 | ||
1546 | (defun soap-encode-array-type (xml-tag value type) | |
1547 | "Encode inside XML-TAG the LISP VALUE according to TYPE. | |
1548 | Do not call this function directly, use `soap-encode-value' | |
1549 | instead." | |
1550 | (unless (vectorp value) | |
1551 | (error "Soap-encode: %s(%s) expects a vector, got: %s" | |
1552 | xml-tag (soap-element-fq-name type) value)) | |
1553 | (let* ((element-type (soap-array-type-element-type type)) | |
1554 | (array-type (concat (soap-element-fq-name element-type) | |
1555 | "[" (format "%s" (length value)) "]"))) | |
1556 | (insert "<" xml-tag | |
1557 | " soapenc:arrayType=\"" array-type "\" " | |
1558 | " xsi:type=\"soapenc:Array\">\n") | |
1559 | (loop for i below (length value) | |
1560 | do (soap-encode-value xml-tag (aref value i) element-type)) | |
1561 | (insert "</" xml-tag ">\n"))) | |
1562 | ||
1563 | (progn | |
1564 | (put (aref (make-soap-basic-type) 0) | |
1565 | 'soap-encoder 'soap-encode-basic-type) | |
1566 | (put (aref (make-soap-sequence-type) 0) | |
1567 | 'soap-encoder 'soap-encode-sequence-type) | |
1568 | (put (aref (make-soap-array-type) 0) | |
1569 | 'soap-encoder 'soap-encode-array-type)) | |
1570 | ||
1571 | (defun soap-encode-body (operation parameters wsdl) | |
1572 | "Create the body of a SOAP request for OPERATION in the current buffer. | |
1573 | PARAMETERS is a list of parameters supplied to the OPERATION. | |
1574 | ||
1575 | The OPERATION and PARAMETERS are encoded according to the WSDL | |
1576 | document." | |
1577 | (let* ((op (soap-bound-operation-operation operation)) | |
1578 | (use (soap-bound-operation-use operation)) | |
1579 | (message (cdr (soap-operation-input op))) | |
1580 | (parameter-order (soap-operation-parameter-order op))) | |
1581 | ||
1582 | (unless (= (length parameter-order) (length parameters)) | |
1583 | (error "Wrong number of parameters for %s: expected %d, got %s" | |
1584 | (soap-element-name op) | |
1585 | (length parameter-order) | |
1586 | (length parameters))) | |
1587 | ||
1588 | (insert "<soap:Body>\n") | |
1589 | (when (eq use 'encoded) | |
274c2d34 | 1590 | (add-to-list 'soap-encoded-namespaces (soap-element-namespace-tag op)) |
16d2ff89 MA |
1591 | (insert "<" (soap-element-fq-name op) ">\n")) |
1592 | ||
1593 | (let ((param-table (loop for formal in parameter-order | |
1594 | for value in parameters | |
1595 | collect (cons formal value)))) | |
1596 | (dolist (part (soap-message-parts message)) | |
1597 | (let* ((param-name (car part)) | |
1598 | (type (cdr part)) | |
1599 | (tag-name (if (eq use 'encoded) | |
1600 | param-name | |
1601 | (soap-element-name type))) | |
1602 | (value (cdr (assoc param-name param-table))) | |
1603 | (start-pos (point))) | |
1604 | (soap-encode-value tag-name value type) | |
1605 | (when (eq use 'literal) | |
1606 | ;; hack: add the xmlns attribute to the tag, the only way | |
1607 | ;; ASP.NET web services recognize the namespace of the | |
1608 | ;; element itself... | |
1609 | (save-excursion | |
1610 | (goto-char start-pos) | |
1611 | (when (re-search-forward " ") | |
1612 | (let* ((ns (soap-element-namespace-tag type)) | |
88ae2870 MA |
1613 | (namespace (cdr (assoc ns |
1614 | (soap-wsdl-alias-table wsdl))))) | |
16d2ff89 MA |
1615 | (when namespace |
1616 | (insert "xmlns=\"" namespace "\" "))))))))) | |
1617 | ||
1618 | (when (eq use 'encoded) | |
1619 | (insert "</" (soap-element-fq-name op) ">\n")) | |
1620 | (insert "</soap:Body>\n"))) | |
1621 | ||
1622 | (defun soap-create-envelope (operation parameters wsdl) | |
1623 | "Create a SOAP request envelope for OPERATION using PARAMETERS. | |
1624 | WSDL is the wsdl document used to encode the PARAMETERS." | |
1625 | (with-temp-buffer | |
274c2d34 | 1626 | (let ((soap-encoded-namespaces '("xsi" "soap" "soapenc")) |
16d2ff89 MA |
1627 | (use (soap-bound-operation-use operation))) |
1628 | ||
1629 | ;; Create the request body | |
1630 | (soap-encode-body operation parameters wsdl) | |
1631 | ||
1632 | ;; Put the envelope around the body | |
1633 | (goto-char (point-min)) | |
1634 | (insert "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<soap:Envelope\n") | |
1635 | (when (eq use 'encoded) | |
1636 | (insert " soapenc:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\"\n")) | |
274c2d34 | 1637 | (dolist (nstag soap-encoded-namespaces) |
16d2ff89 | 1638 | (insert " xmlns:" nstag "=\"") |
274c2d34 | 1639 | (let ((nsname (cdr (assoc nstag soap-well-known-xmlns)))) |
16d2ff89 MA |
1640 | (unless nsname |
1641 | (setq nsname (cdr (assoc nstag (soap-wsdl-alias-table wsdl))))) | |
1642 | (insert nsname) | |
1643 | (insert "\"\n"))) | |
1644 | (insert ">\n") | |
1645 | (goto-char (point-max)) | |
1646 | (insert "</soap:Envelope>\n")) | |
1647 | ||
1648 | (buffer-string))) | |
1649 | ||
1650 | ;;;; invoking soap methods | |
1651 | ||
1652 | (defcustom soap-debug nil | |
1653 | "When t, enable some debugging facilities." | |
1654 | :type 'boolean | |
1655 | :group 'soap-client) | |
1656 | ||
1657 | (defun soap-invoke (wsdl service operation-name &rest parameters) | |
1658 | "Invoke a SOAP operation and return the result. | |
1659 | ||
1660 | WSDL is used for encoding the request and decoding the response. | |
1661 | It also contains information about the WEB server address that | |
1662 | will service the request. | |
1663 | ||
1664 | SERVICE is the SOAP service to invoke. | |
1665 | ||
1666 | OPERATION-NAME is the operation to invoke. | |
1667 | ||
1668 | PARAMETERS -- the remaining parameters are used as parameters for | |
1669 | the SOAP request. | |
1670 | ||
1671 | NOTE: The SOAP service provider should document the available | |
1672 | operations and their parameters for the service. You can also | |
1673 | use the `soap-inspect' function to browse the available | |
1674 | operations in a WSDL document." | |
1675 | (let ((port (catch 'found | |
1676 | (dolist (p (soap-wsdl-ports wsdl)) | |
1677 | (when (equal service (soap-element-name p)) | |
1678 | (throw 'found p)))))) | |
1679 | (unless port | |
1680 | (error "Unknown SOAP service: %s" service)) | |
1681 | ||
1682 | (let* ((binding (soap-port-binding port)) | |
88ae2870 MA |
1683 | (operation (gethash operation-name |
1684 | (soap-binding-operations binding)))) | |
16d2ff89 MA |
1685 | (unless operation |
1686 | (error "No operation %s for SOAP service %s" operation-name service)) | |
1687 | ||
1688 | (let ((url-request-method "POST") | |
1689 | (url-package-name "soap-client.el") | |
1690 | (url-package-version "1.0") | |
1691 | (url-http-version "1.0") | |
1692 | (url-request-data (soap-create-envelope operation parameters wsdl)) | |
1693 | (url-mime-charset-string "utf-8;q=1, iso-8859-1;q=0.5") | |
1694 | (url-request-coding-system 'utf-8) | |
1695 | (url-http-attempt-keepalives t) | |
1696 | (url-request-extra-headers (list | |
88ae2870 MA |
1697 | (cons "SOAPAction" |
1698 | (soap-bound-operation-soap-action | |
1699 | operation)) | |
1700 | (cons "Content-Type" | |
1701 | "text/xml; charset=utf-8")))) | |
1702 | (let ((buffer (url-retrieve-synchronously | |
1703 | (soap-port-service-url port)))) | |
16d2ff89 MA |
1704 | (condition-case err |
1705 | (with-current-buffer buffer | |
1706 | (declare (special url-http-response-status)) | |
1707 | (if (null url-http-response-status) | |
1708 | (error "No HTTP response from server")) | |
1709 | (if (and soap-debug (> url-http-response-status 299)) | |
1710 | ;; This is a warning because some SOAP errors come | |
1711 | ;; back with a HTTP response 500 (internal server | |
1712 | ;; error) | |
88ae2870 MA |
1713 | (warn "Error in SOAP response: HTTP code %s" |
1714 | url-http-response-status)) | |
16d2ff89 MA |
1715 | (let ((mime-part (mm-dissect-buffer t t))) |
1716 | (unless mime-part | |
1717 | (error "Failed to decode response from server")) | |
1718 | (unless (equal (car (mm-handle-type mime-part)) "text/xml") | |
1719 | (error "Server response is not an XML document")) | |
1720 | (with-temp-buffer | |
1721 | (mm-insert-part mime-part) | |
88ae2870 MA |
1722 | (let ((response (car (xml-parse-region |
1723 | (point-min) (point-max))))) | |
16d2ff89 MA |
1724 | (prog1 |
1725 | (soap-parse-envelope response operation wsdl) | |
1726 | (kill-buffer buffer) | |
1727 | (mm-destroy-part mime-part)))))) | |
1728 | (soap-error | |
1729 | ;; Propagate soap-errors -- they are error replies of the | |
1730 | ;; SOAP protocol and don't indicate a communication | |
1731 | ;; problem or a bug in this code. | |
1732 | (signal (car err) (cdr err))) | |
1733 | (error | |
1734 | (when soap-debug | |
1735 | (pop-to-buffer buffer)) | |
1736 | (error (error-message-string err))))))))) | |
1737 | ||
1738 | (provide 'soap-client) | |
1739 | ||
1740 | \f | |
1741 | ;;; Local Variables: | |
f0da764a | 1742 | ;;; eval: (outline-minor-mode 1) |
16d2ff89 MA |
1743 | ;;; outline-regexp: ";;;;+" |
1744 | ;;; End: | |
1745 | ||
1746 | ;;; soap-client.el ends here |