| 1 | // Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. |
| 2 | |
| 3 | #include "precomp.h" |
| 4 | |
| 5 | // Exit macros |
| 6 | #define AtomExitOnLastError(x, s, ...) ExitOnLastErrorSource(DUTIL_SOURCE_ATOMUTIL, x, s, __VA_ARGS__) |
| 7 | #define AtomExitOnLastErrorDebugTrace(x, s, ...) ExitOnLastErrorDebugTraceSource(DUTIL_SOURCE_ATOMUTIL, x, s, __VA_ARGS__) |
| 8 | #define AtomExitWithLastError(x, s, ...) ExitWithLastErrorSource(DUTIL_SOURCE_ATOMUTIL, x, s, __VA_ARGS__) |
| 9 | #define AtomExitOnFailure(x, s, ...) ExitOnFailureSource(DUTIL_SOURCE_ATOMUTIL, x, s, __VA_ARGS__) |
| 10 | #define AtomExitOnRootFailure(x, s, ...) ExitOnRootFailureSource(DUTIL_SOURCE_ATOMUTIL, x, s, __VA_ARGS__) |
| 11 | #define AtomExitOnFailureDebugTrace(x, s, ...) ExitOnFailureDebugTraceSource(DUTIL_SOURCE_ATOMUTIL, x, s, __VA_ARGS__) |
| 12 | #define AtomExitOnNull(p, x, e, s, ...) ExitOnNullSource(DUTIL_SOURCE_ATOMUTIL, p, x, e, s, __VA_ARGS__) |
| 13 | #define AtomExitOnNullWithLastError(p, x, s, ...) ExitOnNullWithLastErrorSource(DUTIL_SOURCE_ATOMUTIL, p, x, s, __VA_ARGS__) |
| 14 | #define AtomExitOnNullDebugTrace(p, x, e, s, ...) ExitOnNullDebugTraceSource(DUTIL_SOURCE_ATOMUTIL, p, x, e, s, __VA_ARGS__) |
| 15 | #define AtomExitOnInvalidHandleWithLastError(p, x, s, ...) ExitOnInvalidHandleWithLastErrorSource(DUTIL_SOURCE_ATOMUTIL, p, x, s, __VA_ARGS__) |
| 16 | #define AtomExitOnWin32Error(e, x, s, ...) ExitOnWin32ErrorSource(DUTIL_SOURCE_ATOMUTIL, e, x, s, __VA_ARGS__) |
| 17 | #define AtomExitOnGdipFailure(g, x, s, ...) ExitOnGdipFailureSource(DUTIL_SOURCE_ATOMUTIL, g, x, s, __VA_ARGS__) |
| 18 | |
| 19 | static HRESULT ParseAtomDocument( |
| 20 | __in IXMLDOMDocument *pixd, |
| 21 | __out ATOM_FEED **ppFeed |
| 22 | ); |
| 23 | static HRESULT ParseAtomFeed( |
| 24 | __in IXMLDOMNode *pixnFeed, |
| 25 | __out ATOM_FEED **ppFeed |
| 26 | ); |
| 27 | static HRESULT ParseAtomAuthor( |
| 28 | __in IXMLDOMNode* pixnAuthor, |
| 29 | __in ATOM_AUTHOR* pAuthor |
| 30 | ); |
| 31 | static HRESULT ParseAtomCategory( |
| 32 | __in IXMLDOMNode* pixnCategory, |
| 33 | __in ATOM_CATEGORY* pCategory |
| 34 | ); |
| 35 | static HRESULT ParseAtomEntry( |
| 36 | __in IXMLDOMNode* pixnEntry, |
| 37 | __in ATOM_ENTRY* pEntry |
| 38 | ); |
| 39 | static HRESULT ParseAtomLink( |
| 40 | __in IXMLDOMNode* pixnLink, |
| 41 | __in ATOM_LINK* pLink |
| 42 | ); |
| 43 | static HRESULT ParseAtomUnknownElement( |
| 44 | __in IXMLDOMNode *pNode, |
| 45 | __inout ATOM_UNKNOWN_ELEMENT** ppUnknownElement |
| 46 | ); |
| 47 | static HRESULT ParseAtomUnknownAttribute( |
| 48 | __in IXMLDOMNode *pNode, |
| 49 | __inout ATOM_UNKNOWN_ATTRIBUTE** ppUnknownAttribute |
| 50 | ); |
| 51 | static HRESULT AssignDateTime( |
| 52 | __in FILETIME* pft, |
| 53 | __in IXMLDOMNode* pNode |
| 54 | ); |
| 55 | static HRESULT AssignString( |
| 56 | __out_z LPWSTR* pwzValue, |
| 57 | __in IXMLDOMNode* pNode |
| 58 | ); |
| 59 | static void FreeAtomAuthor( |
| 60 | __in_opt ATOM_AUTHOR* pAuthor |
| 61 | ); |
| 62 | static void FreeAtomContent( |
| 63 | __in_opt ATOM_CONTENT* pContent |
| 64 | ); |
| 65 | static void FreeAtomCategory( |
| 66 | __in_opt ATOM_CATEGORY* pCategory |
| 67 | ); |
| 68 | static void FreeAtomEntry( |
| 69 | __in_opt ATOM_ENTRY* pEntry |
| 70 | ); |
| 71 | static void FreeAtomLink( |
| 72 | __in_opt ATOM_LINK* pLink |
| 73 | ); |
| 74 | static void FreeAtomUnknownElementList( |
| 75 | __in_opt ATOM_UNKNOWN_ELEMENT* pUnknownElement |
| 76 | ); |
| 77 | static void FreeAtomUnknownAttributeList( |
| 78 | __in_opt ATOM_UNKNOWN_ATTRIBUTE* pUnknownAttribute |
| 79 | ); |
| 80 | |
| 81 | template<class T> static HRESULT AllocateAtomType( |
| 82 | __in IXMLDOMNode* pixnParent, |
| 83 | __in LPCWSTR wzT, |
| 84 | __out T** pprgT, |
| 85 | __out DWORD* pcT |
| 86 | ); |
| 87 | |
| 88 | |
| 89 | /******************************************************************** |
| 90 | AtomInitialize - Initialize ATOM utilities. |
| 91 | |
| 92 | *********************************************************************/ |
| 93 | extern "C" HRESULT DAPI AtomInitialize() |
| 94 | { |
| 95 | return XmlInitialize(); |
| 96 | } |
| 97 | |
| 98 | |
| 99 | /******************************************************************** |
| 100 | AtomUninitialize - Uninitialize ATOM utilities. |
| 101 | |
| 102 | *********************************************************************/ |
| 103 | extern "C" void DAPI AtomUninitialize() |
| 104 | { |
| 105 | XmlUninitialize(); |
| 106 | } |
| 107 | |
| 108 | |
| 109 | /******************************************************************** |
| 110 | AtomParseFromString - parses out an ATOM feed from a string. |
| 111 | |
| 112 | *********************************************************************/ |
| 113 | extern "C" HRESULT DAPI AtomParseFromString( |
| 114 | __in_z LPCWSTR wzAtomString, |
| 115 | __out ATOM_FEED **ppFeed |
| 116 | ) |
| 117 | { |
| 118 | Assert(wzAtomString); |
| 119 | Assert(ppFeed); |
| 120 | |
| 121 | HRESULT hr = S_OK; |
| 122 | ATOM_FEED *pNewFeed = NULL; |
| 123 | IXMLDOMDocument *pixdAtom = NULL; |
| 124 | |
| 125 | hr = XmlLoadDocument(wzAtomString, &pixdAtom); |
| 126 | AtomExitOnFailure(hr, "Failed to load ATOM string as XML document."); |
| 127 | |
| 128 | hr = ParseAtomDocument(pixdAtom, &pNewFeed); |
| 129 | AtomExitOnFailure(hr, "Failed to parse ATOM document."); |
| 130 | |
| 131 | *ppFeed = pNewFeed; |
| 132 | pNewFeed = NULL; |
| 133 | |
| 134 | LExit: |
| 135 | ReleaseAtomFeed(pNewFeed); |
| 136 | ReleaseObject(pixdAtom); |
| 137 | |
| 138 | return hr; |
| 139 | } |
| 140 | |
| 141 | |
| 142 | /******************************************************************** |
| 143 | AtomParseFromFile - parses out an ATOM feed from a file path. |
| 144 | |
| 145 | *********************************************************************/ |
| 146 | extern "C" HRESULT DAPI AtomParseFromFile( |
| 147 | __in_z LPCWSTR wzAtomFile, |
| 148 | __out ATOM_FEED **ppFeed |
| 149 | ) |
| 150 | { |
| 151 | Assert(wzAtomFile); |
| 152 | Assert(ppFeed); |
| 153 | |
| 154 | HRESULT hr = S_OK; |
| 155 | ATOM_FEED *pNewFeed = NULL; |
| 156 | IXMLDOMDocument *pixdAtom = NULL; |
| 157 | |
| 158 | hr = XmlLoadDocumentFromFile(wzAtomFile, &pixdAtom); |
| 159 | AtomExitOnFailure(hr, "Failed to load ATOM string as XML document."); |
| 160 | |
| 161 | hr = ParseAtomDocument(pixdAtom, &pNewFeed); |
| 162 | AtomExitOnFailure(hr, "Failed to parse ATOM document."); |
| 163 | |
| 164 | *ppFeed = pNewFeed; |
| 165 | pNewFeed = NULL; |
| 166 | |
| 167 | LExit: |
| 168 | ReleaseAtomFeed(pNewFeed); |
| 169 | ReleaseObject(pixdAtom); |
| 170 | |
| 171 | return hr; |
| 172 | } |
| 173 | |
| 174 | |
| 175 | /******************************************************************** |
| 176 | AtomParseFromDocument - parses out an ATOM feed from an XML document. |
| 177 | |
| 178 | *********************************************************************/ |
| 179 | extern "C" HRESULT DAPI AtomParseFromDocument( |
| 180 | __in IXMLDOMDocument* pixdDocument, |
| 181 | __out ATOM_FEED **ppFeed |
| 182 | ) |
| 183 | { |
| 184 | Assert(pixdDocument); |
| 185 | Assert(ppFeed); |
| 186 | |
| 187 | HRESULT hr = S_OK; |
| 188 | ATOM_FEED *pNewFeed = NULL; |
| 189 | |
| 190 | hr = ParseAtomDocument(pixdDocument, &pNewFeed); |
| 191 | AtomExitOnFailure(hr, "Failed to parse ATOM document."); |
| 192 | |
| 193 | *ppFeed = pNewFeed; |
| 194 | pNewFeed = NULL; |
| 195 | |
| 196 | LExit: |
| 197 | ReleaseAtomFeed(pNewFeed); |
| 198 | |
| 199 | return hr; |
| 200 | } |
| 201 | |
| 202 | |
| 203 | /******************************************************************** |
| 204 | AtomFreeFeed - parses out an ATOM feed from a string. |
| 205 | |
| 206 | *********************************************************************/ |
| 207 | extern "C" void DAPI AtomFreeFeed( |
| 208 | __in_xcount(pFeed->cItems) ATOM_FEED* pFeed |
| 209 | ) |
| 210 | { |
| 211 | if (pFeed) |
| 212 | { |
| 213 | FreeAtomUnknownElementList(pFeed->pUnknownElements); |
| 214 | ReleaseObject(pFeed->pixn); |
| 215 | |
| 216 | for (DWORD i = 0; i < pFeed->cLinks; ++i) |
| 217 | { |
| 218 | FreeAtomLink(pFeed->rgLinks + i); |
| 219 | } |
| 220 | ReleaseMem(pFeed->rgLinks); |
| 221 | |
| 222 | for (DWORD i = 0; i < pFeed->cEntries; ++i) |
| 223 | { |
| 224 | FreeAtomEntry(pFeed->rgEntries + i); |
| 225 | } |
| 226 | ReleaseMem(pFeed->rgEntries); |
| 227 | |
| 228 | for (DWORD i = 0; i < pFeed->cCategories; ++i) |
| 229 | { |
| 230 | FreeAtomCategory(pFeed->rgCategories + i); |
| 231 | } |
| 232 | ReleaseMem(pFeed->rgCategories); |
| 233 | |
| 234 | for (DWORD i = 0; i < pFeed->cAuthors; ++i) |
| 235 | { |
| 236 | FreeAtomAuthor(pFeed->rgAuthors + i); |
| 237 | } |
| 238 | ReleaseMem(pFeed->rgAuthors); |
| 239 | |
| 240 | ReleaseStr(pFeed->wzGenerator); |
| 241 | ReleaseStr(pFeed->wzIcon); |
| 242 | ReleaseStr(pFeed->wzId); |
| 243 | ReleaseStr(pFeed->wzLogo); |
| 244 | ReleaseStr(pFeed->wzSubtitle); |
| 245 | ReleaseStr(pFeed->wzTitle); |
| 246 | |
| 247 | MemFree(pFeed); |
| 248 | } |
| 249 | } |
| 250 | |
| 251 | |
| 252 | /******************************************************************** |
| 253 | ParseAtomDocument - parses out an ATOM feed from a loaded XML DOM document. |
| 254 | |
| 255 | *********************************************************************/ |
| 256 | static HRESULT ParseAtomDocument( |
| 257 | __in IXMLDOMDocument *pixd, |
| 258 | __out ATOM_FEED **ppFeed |
| 259 | ) |
| 260 | { |
| 261 | Assert(pixd); |
| 262 | Assert(ppFeed); |
| 263 | |
| 264 | HRESULT hr = S_OK; |
| 265 | IXMLDOMElement *pFeedElement = NULL; |
| 266 | |
| 267 | ATOM_FEED *pNewFeed = NULL; |
| 268 | |
| 269 | // |
| 270 | // Get the document element and start processing feeds. |
| 271 | // |
| 272 | hr = pixd->get_documentElement(&pFeedElement); |
| 273 | AtomExitOnFailure(hr, "failed get_documentElement in ParseAtomDocument"); |
| 274 | |
| 275 | hr = ParseAtomFeed(pFeedElement, &pNewFeed); |
| 276 | AtomExitOnFailure(hr, "Failed to parse ATOM feed."); |
| 277 | |
| 278 | if (S_FALSE == hr) |
| 279 | { |
| 280 | hr = S_OK; |
| 281 | } |
| 282 | |
| 283 | *ppFeed = pNewFeed; |
| 284 | pNewFeed = NULL; |
| 285 | |
| 286 | LExit: |
| 287 | ReleaseObject(pFeedElement); |
| 288 | |
| 289 | ReleaseAtomFeed(pNewFeed); |
| 290 | |
| 291 | return hr; |
| 292 | } |
| 293 | |
| 294 | |
| 295 | /******************************************************************** |
| 296 | ParseAtomFeed - parses out an ATOM feed from a loaded XML DOM element. |
| 297 | |
| 298 | *********************************************************************/ |
| 299 | static HRESULT ParseAtomFeed( |
| 300 | __in IXMLDOMNode *pixnFeed, |
| 301 | __out ATOM_FEED **ppFeed |
| 302 | ) |
| 303 | { |
| 304 | Assert(pixnFeed); |
| 305 | Assert(ppFeed); |
| 306 | |
| 307 | HRESULT hr = S_OK; |
| 308 | IXMLDOMNodeList *pNodeList = NULL; |
| 309 | |
| 310 | ATOM_FEED *pNewFeed = NULL; |
| 311 | DWORD cAuthors = 0; |
| 312 | DWORD cCategories = 0; |
| 313 | DWORD cEntries = 0; |
| 314 | DWORD cLinks = 0; |
| 315 | |
| 316 | IXMLDOMNode *pNode = NULL; |
| 317 | BSTR bstrNodeName = NULL; |
| 318 | |
| 319 | // First, allocate the new feed and all the possible sub elements. |
| 320 | pNewFeed = (ATOM_FEED*)MemAlloc(sizeof(ATOM_FEED), TRUE); |
| 321 | AtomExitOnNull(pNewFeed, hr, E_OUTOFMEMORY, "Failed to allocate ATOM feed structure."); |
| 322 | |
| 323 | pNewFeed->pixn = pixnFeed; |
| 324 | pNewFeed->pixn->AddRef(); |
| 325 | |
| 326 | hr = AllocateAtomType<ATOM_AUTHOR>(pixnFeed, L"author", &pNewFeed->rgAuthors, &pNewFeed->cAuthors); |
| 327 | AtomExitOnFailure(hr, "Failed to allocate ATOM feed authors."); |
| 328 | |
| 329 | hr = AllocateAtomType<ATOM_CATEGORY>(pixnFeed, L"category", &pNewFeed->rgCategories, &pNewFeed->cCategories); |
| 330 | AtomExitOnFailure(hr, "Failed to allocate ATOM feed categories."); |
| 331 | |
| 332 | hr = AllocateAtomType<ATOM_ENTRY>(pixnFeed, L"entry", &pNewFeed->rgEntries, &pNewFeed->cEntries); |
| 333 | AtomExitOnFailure(hr, "Failed to allocate ATOM feed entries."); |
| 334 | |
| 335 | hr = AllocateAtomType<ATOM_LINK>(pixnFeed, L"link", &pNewFeed->rgLinks, &pNewFeed->cLinks); |
| 336 | AtomExitOnFailure(hr, "Failed to allocate ATOM feed links."); |
| 337 | |
| 338 | // Second, process the elements under a feed. |
| 339 | hr = pixnFeed->get_childNodes(&pNodeList); |
| 340 | AtomExitOnFailure(hr, "Failed to get child nodes of ATOM feed element."); |
| 341 | |
| 342 | while (S_OK == (hr = XmlNextElement(pNodeList, &pNode, &bstrNodeName))) |
| 343 | { |
| 344 | if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"generator", -1)) |
| 345 | { |
| 346 | hr = AssignString(&pNewFeed->wzGenerator, pNode); |
| 347 | AtomExitOnFailure(hr, "Failed to allocate ATOM feed generator."); |
| 348 | } |
| 349 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"icon", -1)) |
| 350 | { |
| 351 | hr = AssignString(&pNewFeed->wzIcon, pNode); |
| 352 | AtomExitOnFailure(hr, "Failed to allocate ATOM feed icon."); |
| 353 | } |
| 354 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"id", -1)) |
| 355 | { |
| 356 | hr = AssignString(&pNewFeed->wzId, pNode); |
| 357 | AtomExitOnFailure(hr, "Failed to allocate ATOM feed id."); |
| 358 | } |
| 359 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"logo", -1)) |
| 360 | { |
| 361 | hr = AssignString(&pNewFeed->wzLogo, pNode); |
| 362 | AtomExitOnFailure(hr, "Failed to allocate ATOM feed logo."); |
| 363 | } |
| 364 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"subtitle", -1)) |
| 365 | { |
| 366 | hr = AssignString(&pNewFeed->wzSubtitle, pNode); |
| 367 | AtomExitOnFailure(hr, "Failed to allocate ATOM feed subtitle."); |
| 368 | } |
| 369 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"title", -1)) |
| 370 | { |
| 371 | hr = AssignString(&pNewFeed->wzTitle, pNode); |
| 372 | AtomExitOnFailure(hr, "Failed to allocate ATOM feed title."); |
| 373 | } |
| 374 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"updated", -1)) |
| 375 | { |
| 376 | hr = AssignDateTime(&pNewFeed->ftUpdated, pNode); |
| 377 | AtomExitOnFailure(hr, "Failed to allocate ATOM feed updated."); |
| 378 | } |
| 379 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"author", -1)) |
| 380 | { |
| 381 | hr = ParseAtomAuthor(pNode, &pNewFeed->rgAuthors[cAuthors]); |
| 382 | AtomExitOnFailure(hr, "Failed to parse ATOM author."); |
| 383 | |
| 384 | ++cAuthors; |
| 385 | } |
| 386 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"category", -1)) |
| 387 | { |
| 388 | hr = ParseAtomCategory(pNode, &pNewFeed->rgCategories[cCategories]); |
| 389 | AtomExitOnFailure(hr, "Failed to parse ATOM category."); |
| 390 | |
| 391 | ++cCategories; |
| 392 | } |
| 393 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"entry", -1)) |
| 394 | { |
| 395 | hr = ParseAtomEntry(pNode, &pNewFeed->rgEntries[cEntries]); |
| 396 | AtomExitOnFailure(hr, "Failed to parse ATOM entry."); |
| 397 | |
| 398 | ++cEntries; |
| 399 | } |
| 400 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"link", -1)) |
| 401 | { |
| 402 | hr = ParseAtomLink(pNode, &pNewFeed->rgLinks[cLinks]); |
| 403 | AtomExitOnFailure(hr, "Failed to parse ATOM link."); |
| 404 | |
| 405 | ++cLinks; |
| 406 | } |
| 407 | else |
| 408 | { |
| 409 | hr = ParseAtomUnknownElement(pNode, &pNewFeed->pUnknownElements); |
| 410 | AtomExitOnFailure(hr, "Failed to parse unknown ATOM feed element: %ls", bstrNodeName); |
| 411 | } |
| 412 | |
| 413 | ReleaseNullBSTR(bstrNodeName); |
| 414 | ReleaseNullObject(pNode); |
| 415 | } |
| 416 | |
| 417 | if (!pNewFeed->wzId || !*pNewFeed->wzId) |
| 418 | { |
| 419 | hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA); |
| 420 | AtomExitOnRootFailure(hr, "Failed to find required feed/id element."); |
| 421 | } |
| 422 | else if (!pNewFeed->wzTitle || !*pNewFeed->wzTitle) |
| 423 | { |
| 424 | hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA); |
| 425 | AtomExitOnRootFailure(hr, "Failed to find required feed/title element."); |
| 426 | } |
| 427 | else if (0 == pNewFeed->ftUpdated.dwHighDateTime && 0 == pNewFeed->ftUpdated.dwLowDateTime) |
| 428 | { |
| 429 | hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA); |
| 430 | AtomExitOnRootFailure(hr, "Failed to find required feed/updated element."); |
| 431 | } |
| 432 | |
| 433 | *ppFeed = pNewFeed; |
| 434 | pNewFeed = NULL; |
| 435 | |
| 436 | LExit: |
| 437 | ReleaseBSTR(bstrNodeName); |
| 438 | ReleaseObject(pNode); |
| 439 | ReleaseObject(pNodeList); |
| 440 | |
| 441 | ReleaseAtomFeed(pNewFeed); |
| 442 | |
| 443 | return hr; |
| 444 | } |
| 445 | |
| 446 | |
| 447 | /******************************************************************** |
| 448 | AllocateAtomType - allocates enough space for all of the ATOM elements |
| 449 | of a particular type under a particular node. |
| 450 | |
| 451 | *********************************************************************/ |
| 452 | template<class T> static HRESULT AllocateAtomType( |
| 453 | __in IXMLDOMNode* pixnParent, |
| 454 | __in LPCWSTR wzT, |
| 455 | __out T** pprgT, |
| 456 | __out DWORD* pcT |
| 457 | ) |
| 458 | { |
| 459 | HRESULT hr = S_OK; |
| 460 | IXMLDOMNodeList *pNodeList = NULL; |
| 461 | |
| 462 | long cT = 0; |
| 463 | T* prgT = NULL; |
| 464 | |
| 465 | hr = XmlSelectNodes(pixnParent, wzT, &pNodeList); |
| 466 | AtomExitOnFailure(hr, "Failed to select all ATOM %ls.", wzT); |
| 467 | |
| 468 | if (S_OK == hr) |
| 469 | { |
| 470 | hr = pNodeList->get_length(&cT); |
| 471 | AtomExitOnFailure(hr, "Failed to count the number of ATOM %ls.", wzT); |
| 472 | |
| 473 | if (cT == 0) |
| 474 | { |
| 475 | ExitFunction(); |
| 476 | } |
| 477 | |
| 478 | prgT = static_cast<T*>(MemAlloc(sizeof(T) * cT, TRUE)); |
| 479 | AtomExitOnNull(prgT, hr, E_OUTOFMEMORY, "Failed to allocate ATOM."); |
| 480 | |
| 481 | *pcT = cT; |
| 482 | *pprgT = prgT; |
| 483 | prgT = NULL; |
| 484 | } |
| 485 | else |
| 486 | { |
| 487 | *pprgT = NULL; |
| 488 | *pcT = 0; |
| 489 | } |
| 490 | |
| 491 | LExit: |
| 492 | ReleaseMem(prgT); |
| 493 | ReleaseObject(pNodeList); |
| 494 | |
| 495 | return hr; |
| 496 | } |
| 497 | |
| 498 | |
| 499 | /******************************************************************** |
| 500 | ParseAtomAuthor - parses out an ATOM author from a loaded XML DOM node. |
| 501 | |
| 502 | *********************************************************************/ |
| 503 | static HRESULT ParseAtomAuthor( |
| 504 | __in IXMLDOMNode* pixnAuthor, |
| 505 | __in ATOM_AUTHOR* pAuthor |
| 506 | ) |
| 507 | { |
| 508 | HRESULT hr = S_OK; |
| 509 | |
| 510 | IXMLDOMNodeList *pNodeList = NULL; |
| 511 | IXMLDOMNode *pNode = NULL; |
| 512 | BSTR bstrNodeName = NULL; |
| 513 | |
| 514 | hr = pixnAuthor->get_childNodes(&pNodeList); |
| 515 | AtomExitOnFailure(hr, "Failed to get child nodes of ATOM author element."); |
| 516 | |
| 517 | while (S_OK == (hr = XmlNextElement(pNodeList, &pNode, &bstrNodeName))) |
| 518 | { |
| 519 | if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"name", -1)) |
| 520 | { |
| 521 | hr = AssignString(&pAuthor->wzName, pNode); |
| 522 | AtomExitOnFailure(hr, "Failed to allocate ATOM author name."); |
| 523 | } |
| 524 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"email", -1)) |
| 525 | { |
| 526 | hr = AssignString(&pAuthor->wzEmail, pNode); |
| 527 | AtomExitOnFailure(hr, "Failed to allocate ATOM author email."); |
| 528 | } |
| 529 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"uri", -1)) |
| 530 | { |
| 531 | hr = AssignString(&pAuthor->wzUrl, pNode); |
| 532 | AtomExitOnFailure(hr, "Failed to allocate ATOM author uri."); |
| 533 | } |
| 534 | |
| 535 | ReleaseNullBSTR(bstrNodeName); |
| 536 | ReleaseNullObject(pNode); |
| 537 | } |
| 538 | AtomExitOnFailure(hr, "Failed to process all ATOM author elements."); |
| 539 | |
| 540 | hr = S_OK; |
| 541 | |
| 542 | LExit: |
| 543 | ReleaseBSTR(bstrNodeName); |
| 544 | ReleaseObject(pNode); |
| 545 | ReleaseObject(pNodeList); |
| 546 | |
| 547 | return hr; |
| 548 | } |
| 549 | |
| 550 | |
| 551 | /******************************************************************** |
| 552 | ParseAtomCategory - parses out an ATOM category from a loaded XML DOM node. |
| 553 | |
| 554 | *********************************************************************/ |
| 555 | static HRESULT ParseAtomCategory( |
| 556 | __in IXMLDOMNode* pixnCategory, |
| 557 | __in ATOM_CATEGORY* pCategory |
| 558 | ) |
| 559 | { |
| 560 | HRESULT hr = S_OK; |
| 561 | |
| 562 | IXMLDOMNamedNodeMap* pixnnmAttributes = NULL; |
| 563 | IXMLDOMNodeList *pNodeList = NULL; |
| 564 | IXMLDOMNode *pNode = NULL; |
| 565 | BSTR bstrNodeName = NULL; |
| 566 | |
| 567 | // Process attributes first. |
| 568 | hr = pixnCategory->get_attributes(&pixnnmAttributes); |
| 569 | AtomExitOnFailure(hr, "Failed get attributes on ATOM unknown element."); |
| 570 | |
| 571 | while (S_OK == (hr = XmlNextAttribute(pixnnmAttributes, &pNode, &bstrNodeName))) |
| 572 | { |
| 573 | if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"label", -1)) |
| 574 | { |
| 575 | hr = AssignString(&pCategory->wzLabel, pNode); |
| 576 | AtomExitOnFailure(hr, "Failed to allocate ATOM category label."); |
| 577 | } |
| 578 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"scheme", -1)) |
| 579 | { |
| 580 | hr = AssignString(&pCategory->wzScheme, pNode); |
| 581 | AtomExitOnFailure(hr, "Failed to allocate ATOM category scheme."); |
| 582 | } |
| 583 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"term", -1)) |
| 584 | { |
| 585 | hr = AssignString(&pCategory->wzTerm, pNode); |
| 586 | AtomExitOnFailure(hr, "Failed to allocate ATOM category term."); |
| 587 | } |
| 588 | |
| 589 | ReleaseNullBSTR(bstrNodeName); |
| 590 | ReleaseNullObject(pNode); |
| 591 | } |
| 592 | AtomExitOnFailure(hr, "Failed to process all ATOM category attributes."); |
| 593 | |
| 594 | // Process elements second. |
| 595 | hr = pixnCategory->get_childNodes(&pNodeList); |
| 596 | AtomExitOnFailure(hr, "Failed to get child nodes of ATOM category element."); |
| 597 | |
| 598 | while (S_OK == (hr = XmlNextElement(pNodeList, &pNode, &bstrNodeName))) |
| 599 | { |
| 600 | hr = ParseAtomUnknownElement(pNode, &pCategory->pUnknownElements); |
| 601 | AtomExitOnFailure(hr, "Failed to parse unknown ATOM category element: %ls", bstrNodeName); |
| 602 | |
| 603 | ReleaseNullBSTR(bstrNodeName); |
| 604 | ReleaseNullObject(pNode); |
| 605 | } |
| 606 | AtomExitOnFailure(hr, "Failed to process all ATOM category elements."); |
| 607 | |
| 608 | hr = S_OK; |
| 609 | |
| 610 | LExit: |
| 611 | ReleaseBSTR(bstrNodeName); |
| 612 | ReleaseObject(pNode); |
| 613 | ReleaseObject(pNodeList); |
| 614 | ReleaseObject(pixnnmAttributes); |
| 615 | |
| 616 | return hr; |
| 617 | } |
| 618 | |
| 619 | |
| 620 | /******************************************************************** |
| 621 | ParseAtomContent - parses out an ATOM content from a loaded XML DOM node. |
| 622 | |
| 623 | *********************************************************************/ |
| 624 | static HRESULT ParseAtomContent( |
| 625 | __in IXMLDOMNode* pixnContent, |
| 626 | __in ATOM_CONTENT* pContent |
| 627 | ) |
| 628 | { |
| 629 | HRESULT hr = S_OK; |
| 630 | |
| 631 | IXMLDOMNamedNodeMap* pixnnmAttributes = NULL; |
| 632 | IXMLDOMNodeList *pNodeList = NULL; |
| 633 | IXMLDOMNode *pNode = NULL; |
| 634 | BSTR bstrNodeName = NULL; |
| 635 | |
| 636 | // Process attributes first. |
| 637 | hr = pixnContent->get_attributes(&pixnnmAttributes); |
| 638 | AtomExitOnFailure(hr, "Failed get attributes on ATOM unknown element."); |
| 639 | |
| 640 | while (S_OK == (hr = XmlNextAttribute(pixnnmAttributes, &pNode, &bstrNodeName))) |
| 641 | { |
| 642 | if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"type", -1)) |
| 643 | { |
| 644 | hr = AssignString(&pContent->wzType, pNode); |
| 645 | AtomExitOnFailure(hr, "Failed to allocate ATOM content type."); |
| 646 | } |
| 647 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"url", -1)) |
| 648 | { |
| 649 | hr = AssignString(&pContent->wzUrl, pNode); |
| 650 | AtomExitOnFailure(hr, "Failed to allocate ATOM content scheme."); |
| 651 | } |
| 652 | |
| 653 | ReleaseNullBSTR(bstrNodeName); |
| 654 | ReleaseNullObject(pNode); |
| 655 | } |
| 656 | AtomExitOnFailure(hr, "Failed to process all ATOM content attributes."); |
| 657 | |
| 658 | // Process elements second. |
| 659 | hr = pixnContent->get_childNodes(&pNodeList); |
| 660 | AtomExitOnFailure(hr, "Failed to get child nodes of ATOM content element."); |
| 661 | |
| 662 | while (S_OK == (hr = XmlNextElement(pNodeList, &pNode, &bstrNodeName))) |
| 663 | { |
| 664 | hr = ParseAtomUnknownElement(pNode, &pContent->pUnknownElements); |
| 665 | AtomExitOnFailure(hr, "Failed to parse unknown ATOM content element: %ls", bstrNodeName); |
| 666 | |
| 667 | ReleaseNullBSTR(bstrNodeName); |
| 668 | ReleaseNullObject(pNode); |
| 669 | } |
| 670 | AtomExitOnFailure(hr, "Failed to process all ATOM content elements."); |
| 671 | |
| 672 | hr = AssignString(&pContent->wzValue, pixnContent); |
| 673 | AtomExitOnFailure(hr, "Failed to allocate ATOM content value."); |
| 674 | |
| 675 | LExit: |
| 676 | ReleaseBSTR(bstrNodeName); |
| 677 | ReleaseObject(pNode); |
| 678 | ReleaseObject(pNodeList); |
| 679 | ReleaseObject(pixnnmAttributes); |
| 680 | |
| 681 | return hr; |
| 682 | } |
| 683 | |
| 684 | |
| 685 | /******************************************************************** |
| 686 | ParseAtomEntry - parses out an ATOM entry from a loaded XML DOM node. |
| 687 | |
| 688 | *********************************************************************/ |
| 689 | static HRESULT ParseAtomEntry( |
| 690 | __in IXMLDOMNode* pixnEntry, |
| 691 | __in ATOM_ENTRY* pEntry |
| 692 | ) |
| 693 | { |
| 694 | HRESULT hr = S_OK; |
| 695 | |
| 696 | IXMLDOMNamedNodeMap* pixnnmAttributes = NULL; |
| 697 | IXMLDOMNodeList *pNodeList = NULL; |
| 698 | IXMLDOMNode *pNode = NULL; |
| 699 | BSTR bstrNodeName = NULL; |
| 700 | |
| 701 | DWORD cAuthors = 0; |
| 702 | DWORD cCategories = 0; |
| 703 | DWORD cLinks = 0; |
| 704 | |
| 705 | pEntry->pixn = pixnEntry; |
| 706 | pEntry->pixn->AddRef(); |
| 707 | |
| 708 | // First, allocate all the possible sub elements. |
| 709 | hr = AllocateAtomType<ATOM_AUTHOR>(pixnEntry, L"author", &pEntry->rgAuthors, &pEntry->cAuthors); |
| 710 | AtomExitOnFailure(hr, "Failed to allocate ATOM entry authors."); |
| 711 | |
| 712 | hr = AllocateAtomType<ATOM_CATEGORY>(pixnEntry, L"category", &pEntry->rgCategories, &pEntry->cCategories); |
| 713 | AtomExitOnFailure(hr, "Failed to allocate ATOM entry categories."); |
| 714 | |
| 715 | hr = AllocateAtomType<ATOM_LINK>(pixnEntry, L"link", &pEntry->rgLinks, &pEntry->cLinks); |
| 716 | AtomExitOnFailure(hr, "Failed to allocate ATOM entry links."); |
| 717 | |
| 718 | // Second, process elements. |
| 719 | hr = pixnEntry->get_childNodes(&pNodeList); |
| 720 | AtomExitOnFailure(hr, "Failed to get child nodes of ATOM entry element."); |
| 721 | |
| 722 | while (S_OK == (hr = XmlNextElement(pNodeList, &pNode, &bstrNodeName))) |
| 723 | { |
| 724 | if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"id", -1)) |
| 725 | { |
| 726 | hr = AssignString(&pEntry->wzId, pNode); |
| 727 | AtomExitOnFailure(hr, "Failed to allocate ATOM entry id."); |
| 728 | } |
| 729 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"summary", -1)) |
| 730 | { |
| 731 | hr = AssignString(&pEntry->wzSummary, pNode); |
| 732 | AtomExitOnFailure(hr, "Failed to allocate ATOM entry summary."); |
| 733 | } |
| 734 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"title", -1)) |
| 735 | { |
| 736 | hr = AssignString(&pEntry->wzTitle, pNode); |
| 737 | AtomExitOnFailure(hr, "Failed to allocate ATOM entry title."); |
| 738 | } |
| 739 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"published", -1)) |
| 740 | { |
| 741 | hr = AssignDateTime(&pEntry->ftPublished, pNode); |
| 742 | AtomExitOnFailure(hr, "Failed to allocate ATOM entry published."); |
| 743 | } |
| 744 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"updated", -1)) |
| 745 | { |
| 746 | hr = AssignDateTime(&pEntry->ftUpdated, pNode); |
| 747 | AtomExitOnFailure(hr, "Failed to allocate ATOM entry updated."); |
| 748 | } |
| 749 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"author", -1)) |
| 750 | { |
| 751 | hr = ParseAtomAuthor(pNode, &pEntry->rgAuthors[cAuthors]); |
| 752 | AtomExitOnFailure(hr, "Failed to parse ATOM entry author."); |
| 753 | |
| 754 | ++cAuthors; |
| 755 | } |
| 756 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"category", -1)) |
| 757 | { |
| 758 | hr = ParseAtomCategory(pNode, &pEntry->rgCategories[cCategories]); |
| 759 | AtomExitOnFailure(hr, "Failed to parse ATOM entry category."); |
| 760 | |
| 761 | ++cCategories; |
| 762 | } |
| 763 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"content", -1)) |
| 764 | { |
| 765 | if (NULL != pEntry->pContent) |
| 766 | { |
| 767 | hr = E_UNEXPECTED; |
| 768 | AtomExitOnFailure(hr, "Cannot have two content elements in ATOM entry."); |
| 769 | } |
| 770 | |
| 771 | pEntry->pContent = static_cast<ATOM_CONTENT*>(MemAlloc(sizeof(ATOM_CONTENT), TRUE)); |
| 772 | AtomExitOnNull(pEntry->pContent, hr, E_OUTOFMEMORY, "Failed to allocate ATOM entry content."); |
| 773 | |
| 774 | hr = ParseAtomContent(pNode, pEntry->pContent); |
| 775 | AtomExitOnFailure(hr, "Failed to parse ATOM entry content."); |
| 776 | } |
| 777 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"link", -1)) |
| 778 | { |
| 779 | hr = ParseAtomLink(pNode, &pEntry->rgLinks[cLinks]); |
| 780 | AtomExitOnFailure(hr, "Failed to parse ATOM entry link."); |
| 781 | |
| 782 | ++cLinks; |
| 783 | } |
| 784 | else |
| 785 | { |
| 786 | hr = ParseAtomUnknownElement(pNode, &pEntry->pUnknownElements); |
| 787 | AtomExitOnFailure(hr, "Failed to parse unknown ATOM entry element: %ls", bstrNodeName); |
| 788 | } |
| 789 | |
| 790 | ReleaseNullBSTR(bstrNodeName); |
| 791 | ReleaseNullObject(pNode); |
| 792 | } |
| 793 | AtomExitOnFailure(hr, "Failed to process all ATOM entry elements."); |
| 794 | |
| 795 | if (!pEntry->wzId || !*pEntry->wzId) |
| 796 | { |
| 797 | hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA); |
| 798 | AtomExitOnRootFailure(hr, "Failed to find required feed/entry/id element."); |
| 799 | } |
| 800 | else if (!pEntry->wzTitle || !*pEntry->wzTitle) |
| 801 | { |
| 802 | hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA); |
| 803 | AtomExitOnRootFailure(hr, "Failed to find required feed/entry/title element."); |
| 804 | } |
| 805 | else if (0 == pEntry->ftUpdated.dwHighDateTime && 0 == pEntry->ftUpdated.dwLowDateTime) |
| 806 | { |
| 807 | hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA); |
| 808 | AtomExitOnRootFailure(hr, "Failed to find required feed/entry/updated element."); |
| 809 | } |
| 810 | |
| 811 | hr = S_OK; |
| 812 | |
| 813 | LExit: |
| 814 | ReleaseBSTR(bstrNodeName); |
| 815 | ReleaseObject(pNode); |
| 816 | ReleaseObject(pNodeList); |
| 817 | ReleaseObject(pixnnmAttributes); |
| 818 | |
| 819 | return hr; |
| 820 | } |
| 821 | |
| 822 | |
| 823 | /******************************************************************** |
| 824 | ParseAtomLink - parses out an ATOM link from a loaded XML DOM node. |
| 825 | |
| 826 | *********************************************************************/ |
| 827 | static HRESULT ParseAtomLink( |
| 828 | __in IXMLDOMNode* pixnLink, |
| 829 | __in ATOM_LINK* pLink |
| 830 | ) |
| 831 | { |
| 832 | HRESULT hr = S_OK; |
| 833 | |
| 834 | IXMLDOMNamedNodeMap* pixnnmAttributes = NULL; |
| 835 | IXMLDOMNodeList *pNodeList = NULL; |
| 836 | IXMLDOMNode *pNode = NULL; |
| 837 | BSTR bstrNodeName = NULL; |
| 838 | |
| 839 | // Process attributes first. |
| 840 | hr = pixnLink->get_attributes(&pixnnmAttributes); |
| 841 | AtomExitOnFailure(hr, "Failed get attributes for ATOM link."); |
| 842 | |
| 843 | while (S_OK == (hr = XmlNextAttribute(pixnnmAttributes, &pNode, &bstrNodeName))) |
| 844 | { |
| 845 | if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"rel", -1)) |
| 846 | { |
| 847 | hr = AssignString(&pLink->wzRel, pNode); |
| 848 | AtomExitOnFailure(hr, "Failed to allocate ATOM link rel."); |
| 849 | } |
| 850 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"href", -1)) |
| 851 | { |
| 852 | hr = AssignString(&pLink->wzUrl, pNode); |
| 853 | AtomExitOnFailure(hr, "Failed to allocate ATOM link href."); |
| 854 | } |
| 855 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"length", -1)) |
| 856 | { |
| 857 | hr = XmlGetAttributeUInt64(pixnLink, bstrNodeName, &pLink->dw64Length); |
| 858 | if (E_INVALIDARG == hr) |
| 859 | { |
| 860 | hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA); |
| 861 | } |
| 862 | AtomExitOnFailure(hr, "Failed to parse ATOM link length."); |
| 863 | } |
| 864 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"title", -1)) |
| 865 | { |
| 866 | hr = AssignString(&pLink->wzTitle, pNode); |
| 867 | AtomExitOnFailure(hr, "Failed to allocate ATOM link title."); |
| 868 | } |
| 869 | else if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, bstrNodeName, -1, L"type", -1)) |
| 870 | { |
| 871 | hr = AssignString(&pLink->wzType, pNode); |
| 872 | AtomExitOnFailure(hr, "Failed to allocate ATOM link type."); |
| 873 | } |
| 874 | else |
| 875 | { |
| 876 | hr = ParseAtomUnknownAttribute(pNode, &pLink->pUnknownAttributes); |
| 877 | AtomExitOnFailure(hr, "Failed to parse unknown ATOM link attribute: %ls", bstrNodeName); |
| 878 | } |
| 879 | |
| 880 | ReleaseNullBSTR(bstrNodeName); |
| 881 | ReleaseNullObject(pNode); |
| 882 | } |
| 883 | AtomExitOnFailure(hr, "Failed to process all ATOM link attributes."); |
| 884 | |
| 885 | // Process elements second. |
| 886 | hr = pixnLink->get_childNodes(&pNodeList); |
| 887 | AtomExitOnFailure(hr, "Failed to get child nodes of ATOM link element."); |
| 888 | |
| 889 | while (S_OK == (hr = XmlNextElement(pNodeList, &pNode, &bstrNodeName))) |
| 890 | { |
| 891 | hr = ParseAtomUnknownElement(pNode, &pLink->pUnknownElements); |
| 892 | AtomExitOnFailure(hr, "Failed to parse unknown ATOM link element: %ls", bstrNodeName); |
| 893 | |
| 894 | ReleaseNullBSTR(bstrNodeName); |
| 895 | ReleaseNullObject(pNode); |
| 896 | } |
| 897 | AtomExitOnFailure(hr, "Failed to process all ATOM link elements."); |
| 898 | |
| 899 | hr = AssignString(&pLink->wzValue, pixnLink); |
| 900 | AtomExitOnFailure(hr, "Failed to allocate ATOM link value."); |
| 901 | |
| 902 | LExit: |
| 903 | ReleaseBSTR(bstrNodeName); |
| 904 | ReleaseObject(pNode); |
| 905 | ReleaseObject(pNodeList); |
| 906 | ReleaseObject(pixnnmAttributes); |
| 907 | |
| 908 | return hr; |
| 909 | } |
| 910 | |
| 911 | |
| 912 | /******************************************************************** |
| 913 | ParseAtomUnknownElement - parses out an unknown item from the ATOM feed from a loaded XML DOM node. |
| 914 | |
| 915 | *********************************************************************/ |
| 916 | static HRESULT ParseAtomUnknownElement( |
| 917 | __in IXMLDOMNode *pNode, |
| 918 | __inout ATOM_UNKNOWN_ELEMENT** ppUnknownElement |
| 919 | ) |
| 920 | { |
| 921 | Assert(ppUnknownElement); |
| 922 | |
| 923 | HRESULT hr = S_OK; |
| 924 | BSTR bstrNodeNamespace = NULL; |
| 925 | BSTR bstrNodeName = NULL; |
| 926 | BSTR bstrNodeValue = NULL; |
| 927 | IXMLDOMNamedNodeMap* pixnnmAttributes = NULL; |
| 928 | IXMLDOMNode* pixnAttribute = NULL; |
| 929 | ATOM_UNKNOWN_ELEMENT* pNewUnknownElement; |
| 930 | |
| 931 | pNewUnknownElement = (ATOM_UNKNOWN_ELEMENT*)MemAlloc(sizeof(ATOM_UNKNOWN_ELEMENT), TRUE); |
| 932 | AtomExitOnNull(pNewUnknownElement, hr, E_OUTOFMEMORY, "Failed to allocate unknown element."); |
| 933 | |
| 934 | hr = pNode->get_namespaceURI(&bstrNodeNamespace); |
| 935 | if (S_OK == hr) |
| 936 | { |
| 937 | hr = StrAllocString(&pNewUnknownElement->wzNamespace, bstrNodeNamespace, 0); |
| 938 | AtomExitOnFailure(hr, "Failed to allocate ATOM unknown element namespace."); |
| 939 | } |
| 940 | else if (S_FALSE == hr) |
| 941 | { |
| 942 | hr = S_OK; |
| 943 | } |
| 944 | AtomExitOnFailure(hr, "Failed to get unknown element namespace."); |
| 945 | |
| 946 | hr = pNode->get_baseName(&bstrNodeName); |
| 947 | AtomExitOnFailure(hr, "Failed to get unknown element name."); |
| 948 | |
| 949 | hr = StrAllocString(&pNewUnknownElement->wzElement, bstrNodeName, 0); |
| 950 | AtomExitOnFailure(hr, "Failed to allocate ATOM unknown element name."); |
| 951 | |
| 952 | hr = XmlGetText(pNode, &bstrNodeValue); |
| 953 | AtomExitOnFailure(hr, "Failed to get unknown element value."); |
| 954 | |
| 955 | hr = StrAllocString(&pNewUnknownElement->wzValue, bstrNodeValue, 0); |
| 956 | AtomExitOnFailure(hr, "Failed to allocate ATOM unknown element value."); |
| 957 | |
| 958 | hr = pNode->get_attributes(&pixnnmAttributes); |
| 959 | AtomExitOnFailure(hr, "Failed get attributes on ATOM unknown element."); |
| 960 | |
| 961 | while (S_OK == (hr = pixnnmAttributes->nextNode(&pixnAttribute))) |
| 962 | { |
| 963 | hr = ParseAtomUnknownAttribute(pixnAttribute, &pNewUnknownElement->pAttributes); |
| 964 | AtomExitOnFailure(hr, "Failed to parse attribute on ATOM unknown element."); |
| 965 | |
| 966 | ReleaseNullObject(pixnAttribute); |
| 967 | } |
| 968 | |
| 969 | if (S_FALSE == hr) |
| 970 | { |
| 971 | hr = S_OK; |
| 972 | } |
| 973 | AtomExitOnFailure(hr, "Failed to enumerate all attributes on ATOM unknown element."); |
| 974 | |
| 975 | ATOM_UNKNOWN_ELEMENT** ppTail = ppUnknownElement; |
| 976 | while (*ppTail) |
| 977 | { |
| 978 | ppTail = &(*ppTail)->pNext; |
| 979 | } |
| 980 | |
| 981 | *ppTail = pNewUnknownElement; |
| 982 | pNewUnknownElement = NULL; |
| 983 | |
| 984 | LExit: |
| 985 | FreeAtomUnknownElementList(pNewUnknownElement); |
| 986 | |
| 987 | ReleaseBSTR(bstrNodeNamespace); |
| 988 | ReleaseBSTR(bstrNodeName); |
| 989 | ReleaseBSTR(bstrNodeValue); |
| 990 | ReleaseObject(pixnnmAttributes); |
| 991 | ReleaseObject(pixnAttribute); |
| 992 | |
| 993 | return hr; |
| 994 | } |
| 995 | |
| 996 | |
| 997 | /******************************************************************** |
| 998 | ParseAtomUnknownAttribute - parses out attribute from an unknown element |
| 999 | |
| 1000 | *********************************************************************/ |
| 1001 | static HRESULT ParseAtomUnknownAttribute( |
| 1002 | __in IXMLDOMNode *pNode, |
| 1003 | __inout ATOM_UNKNOWN_ATTRIBUTE** ppUnknownAttribute |
| 1004 | ) |
| 1005 | { |
| 1006 | Assert(ppUnknownAttribute); |
| 1007 | |
| 1008 | HRESULT hr = S_OK; |
| 1009 | BSTR bstrNodeNamespace = NULL; |
| 1010 | BSTR bstrNodeName = NULL; |
| 1011 | BSTR bstrNodeValue = NULL; |
| 1012 | ATOM_UNKNOWN_ATTRIBUTE* pNewUnknownAttribute; |
| 1013 | |
| 1014 | pNewUnknownAttribute = (ATOM_UNKNOWN_ATTRIBUTE*)MemAlloc(sizeof(ATOM_UNKNOWN_ATTRIBUTE), TRUE); |
| 1015 | AtomExitOnNull(pNewUnknownAttribute, hr, E_OUTOFMEMORY, "Failed to allocate unknown attribute."); |
| 1016 | |
| 1017 | hr = pNode->get_namespaceURI(&bstrNodeNamespace); |
| 1018 | if (S_OK == hr) |
| 1019 | { |
| 1020 | hr = StrAllocString(&pNewUnknownAttribute->wzNamespace, bstrNodeNamespace, 0); |
| 1021 | AtomExitOnFailure(hr, "Failed to allocate ATOM unknown attribute namespace."); |
| 1022 | } |
| 1023 | else if (S_FALSE == hr) |
| 1024 | { |
| 1025 | hr = S_OK; |
| 1026 | } |
| 1027 | AtomExitOnFailure(hr, "Failed to get unknown attribute namespace."); |
| 1028 | |
| 1029 | hr = pNode->get_baseName(&bstrNodeName); |
| 1030 | AtomExitOnFailure(hr, "Failed to get unknown attribute name."); |
| 1031 | |
| 1032 | hr = StrAllocString(&pNewUnknownAttribute->wzAttribute, bstrNodeName, 0); |
| 1033 | AtomExitOnFailure(hr, "Failed to allocate ATOM unknown attribute name."); |
| 1034 | |
| 1035 | hr = XmlGetText(pNode, &bstrNodeValue); |
| 1036 | AtomExitOnFailure(hr, "Failed to get unknown attribute value."); |
| 1037 | |
| 1038 | hr = StrAllocString(&pNewUnknownAttribute->wzValue, bstrNodeValue, 0); |
| 1039 | AtomExitOnFailure(hr, "Failed to allocate ATOM unknown attribute value."); |
| 1040 | |
| 1041 | ATOM_UNKNOWN_ATTRIBUTE** ppTail = ppUnknownAttribute; |
| 1042 | while (*ppTail) |
| 1043 | { |
| 1044 | ppTail = &(*ppTail)->pNext; |
| 1045 | } |
| 1046 | |
| 1047 | *ppTail = pNewUnknownAttribute; |
| 1048 | pNewUnknownAttribute = NULL; |
| 1049 | |
| 1050 | LExit: |
| 1051 | FreeAtomUnknownAttributeList(pNewUnknownAttribute); |
| 1052 | |
| 1053 | ReleaseBSTR(bstrNodeNamespace); |
| 1054 | ReleaseBSTR(bstrNodeName); |
| 1055 | ReleaseBSTR(bstrNodeValue); |
| 1056 | |
| 1057 | return hr; |
| 1058 | } |
| 1059 | |
| 1060 | |
| 1061 | /******************************************************************** |
| 1062 | AssignDateTime - assigns the value of a node to a FILETIME struct. |
| 1063 | |
| 1064 | *********************************************************************/ |
| 1065 | static HRESULT AssignDateTime( |
| 1066 | __in FILETIME* pft, |
| 1067 | __in IXMLDOMNode* pNode |
| 1068 | ) |
| 1069 | { |
| 1070 | HRESULT hr = S_OK; |
| 1071 | BSTR bstrValue = NULL; |
| 1072 | |
| 1073 | if (0 != pft->dwHighDateTime || 0 != pft->dwLowDateTime) |
| 1074 | { |
| 1075 | hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA); |
| 1076 | AtomExitOnRootFailure(hr, "Already process this datetime value."); |
| 1077 | } |
| 1078 | |
| 1079 | hr = XmlGetText(pNode, &bstrValue); |
| 1080 | AtomExitOnFailure(hr, "Failed to get value."); |
| 1081 | |
| 1082 | if (S_OK == hr) |
| 1083 | { |
| 1084 | hr = TimeFromString3339(bstrValue, pft); |
| 1085 | AtomExitOnFailure(hr, "Failed to convert value to time."); |
| 1086 | } |
| 1087 | else |
| 1088 | { |
| 1089 | ZeroMemory(pft, sizeof(FILETIME)); |
| 1090 | hr = S_OK; |
| 1091 | } |
| 1092 | |
| 1093 | LExit: |
| 1094 | ReleaseBSTR(bstrValue); |
| 1095 | |
| 1096 | return hr; |
| 1097 | } |
| 1098 | |
| 1099 | |
| 1100 | /******************************************************************** |
| 1101 | AssignString - assigns the value of a node to a dynamic string. |
| 1102 | |
| 1103 | *********************************************************************/ |
| 1104 | static HRESULT AssignString( |
| 1105 | __out_z LPWSTR* pwzValue, |
| 1106 | __in IXMLDOMNode* pNode |
| 1107 | ) |
| 1108 | { |
| 1109 | HRESULT hr = S_OK; |
| 1110 | BSTR bstrValue = NULL; |
| 1111 | |
| 1112 | if (pwzValue && *pwzValue) |
| 1113 | { |
| 1114 | hr = HRESULT_FROM_WIN32(ERROR_INVALID_DATA); |
| 1115 | AtomExitOnRootFailure(hr, "Already processed this value."); |
| 1116 | } |
| 1117 | |
| 1118 | hr = XmlGetText(pNode, &bstrValue); |
| 1119 | AtomExitOnFailure(hr, "Failed to get value."); |
| 1120 | |
| 1121 | if (S_OK == hr) |
| 1122 | { |
| 1123 | hr = StrAllocString(pwzValue, bstrValue, 0); |
| 1124 | AtomExitOnFailure(hr, "Failed to allocate value."); |
| 1125 | } |
| 1126 | else |
| 1127 | { |
| 1128 | ReleaseNullStr(pwzValue); |
| 1129 | hr = S_OK; |
| 1130 | } |
| 1131 | |
| 1132 | LExit: |
| 1133 | ReleaseBSTR(bstrValue); |
| 1134 | |
| 1135 | return hr; |
| 1136 | } |
| 1137 | |
| 1138 | |
| 1139 | /******************************************************************** |
| 1140 | FreeAtomAuthor - releases all of the memory used by an ATOM author. |
| 1141 | |
| 1142 | *********************************************************************/ |
| 1143 | static void FreeAtomAuthor( |
| 1144 | __in_opt ATOM_AUTHOR* pAuthor |
| 1145 | ) |
| 1146 | { |
| 1147 | if (pAuthor) |
| 1148 | { |
| 1149 | ReleaseStr(pAuthor->wzUrl); |
| 1150 | ReleaseStr(pAuthor->wzEmail); |
| 1151 | ReleaseStr(pAuthor->wzName); |
| 1152 | } |
| 1153 | } |
| 1154 | |
| 1155 | |
| 1156 | /******************************************************************** |
| 1157 | FreeAtomCategory - releases all of the memory used by an ATOM category. |
| 1158 | |
| 1159 | *********************************************************************/ |
| 1160 | static void FreeAtomCategory( |
| 1161 | __in_opt ATOM_CATEGORY* pCategory |
| 1162 | ) |
| 1163 | { |
| 1164 | if (pCategory) |
| 1165 | { |
| 1166 | FreeAtomUnknownElementList(pCategory->pUnknownElements); |
| 1167 | |
| 1168 | ReleaseStr(pCategory->wzTerm); |
| 1169 | ReleaseStr(pCategory->wzScheme); |
| 1170 | ReleaseStr(pCategory->wzLabel); |
| 1171 | } |
| 1172 | } |
| 1173 | |
| 1174 | |
| 1175 | /******************************************************************** |
| 1176 | FreeAtomContent - releases all of the memory used by an ATOM content. |
| 1177 | |
| 1178 | *********************************************************************/ |
| 1179 | static void FreeAtomContent( |
| 1180 | __in_opt ATOM_CONTENT* pContent |
| 1181 | ) |
| 1182 | { |
| 1183 | if (pContent) |
| 1184 | { |
| 1185 | FreeAtomUnknownElementList(pContent->pUnknownElements); |
| 1186 | |
| 1187 | ReleaseStr(pContent->wzValue); |
| 1188 | ReleaseStr(pContent->wzUrl); |
| 1189 | ReleaseStr(pContent->wzType); |
| 1190 | } |
| 1191 | } |
| 1192 | |
| 1193 | |
| 1194 | /******************************************************************** |
| 1195 | FreeAtomEntry - releases all of the memory used by an ATOM entry. |
| 1196 | |
| 1197 | *********************************************************************/ |
| 1198 | static void FreeAtomEntry( |
| 1199 | __in_opt ATOM_ENTRY* pEntry |
| 1200 | ) |
| 1201 | { |
| 1202 | if (pEntry) |
| 1203 | { |
| 1204 | FreeAtomUnknownElementList(pEntry->pUnknownElements); |
| 1205 | ReleaseObject(pEntry->pixn); |
| 1206 | |
| 1207 | for (DWORD i = 0; i < pEntry->cLinks; ++i) |
| 1208 | { |
| 1209 | FreeAtomLink(pEntry->rgLinks + i); |
| 1210 | } |
| 1211 | ReleaseMem(pEntry->rgLinks); |
| 1212 | |
| 1213 | for (DWORD i = 0; i < pEntry->cCategories; ++i) |
| 1214 | { |
| 1215 | FreeAtomCategory(pEntry->rgCategories + i); |
| 1216 | } |
| 1217 | ReleaseMem(pEntry->rgCategories); |
| 1218 | |
| 1219 | for (DWORD i = 0; i < pEntry->cAuthors; ++i) |
| 1220 | { |
| 1221 | FreeAtomAuthor(pEntry->rgAuthors + i); |
| 1222 | } |
| 1223 | ReleaseMem(pEntry->rgAuthors); |
| 1224 | |
| 1225 | FreeAtomContent(pEntry->pContent); |
| 1226 | ReleaseMem(pEntry->pContent); |
| 1227 | |
| 1228 | ReleaseStr(pEntry->wzTitle); |
| 1229 | ReleaseStr(pEntry->wzSummary); |
| 1230 | ReleaseStr(pEntry->wzId); |
| 1231 | } |
| 1232 | } |
| 1233 | |
| 1234 | |
| 1235 | /******************************************************************** |
| 1236 | FreeAtomLink - releases all of the memory used by an ATOM link. |
| 1237 | |
| 1238 | *********************************************************************/ |
| 1239 | static void FreeAtomLink( |
| 1240 | __in_opt ATOM_LINK* pLink |
| 1241 | ) |
| 1242 | { |
| 1243 | if (pLink) |
| 1244 | { |
| 1245 | FreeAtomUnknownElementList(pLink->pUnknownElements); |
| 1246 | FreeAtomUnknownAttributeList(pLink->pUnknownAttributes); |
| 1247 | |
| 1248 | ReleaseStr(pLink->wzValue); |
| 1249 | ReleaseStr(pLink->wzUrl); |
| 1250 | ReleaseStr(pLink->wzType); |
| 1251 | ReleaseStr(pLink->wzTitle); |
| 1252 | ReleaseStr(pLink->wzRel); |
| 1253 | } |
| 1254 | } |
| 1255 | |
| 1256 | |
| 1257 | /******************************************************************** |
| 1258 | FreeAtomUnknownElement - releases all of the memory used by a list of unknown elements |
| 1259 | |
| 1260 | *********************************************************************/ |
| 1261 | static void FreeAtomUnknownElementList( |
| 1262 | __in_opt ATOM_UNKNOWN_ELEMENT* pUnknownElement |
| 1263 | ) |
| 1264 | { |
| 1265 | while (pUnknownElement) |
| 1266 | { |
| 1267 | ATOM_UNKNOWN_ELEMENT* pFree = pUnknownElement; |
| 1268 | pUnknownElement = pUnknownElement->pNext; |
| 1269 | |
| 1270 | FreeAtomUnknownAttributeList(pFree->pAttributes); |
| 1271 | ReleaseStr(pFree->wzNamespace); |
| 1272 | ReleaseStr(pFree->wzElement); |
| 1273 | ReleaseStr(pFree->wzValue); |
| 1274 | MemFree(pFree); |
| 1275 | } |
| 1276 | } |
| 1277 | |
| 1278 | |
| 1279 | /******************************************************************** |
| 1280 | FreeAtomUnknownAttribute - releases all of the memory used by a list of unknown attributes |
| 1281 | |
| 1282 | *********************************************************************/ |
| 1283 | static void FreeAtomUnknownAttributeList( |
| 1284 | __in_opt ATOM_UNKNOWN_ATTRIBUTE* pUnknownAttribute |
| 1285 | ) |
| 1286 | { |
| 1287 | while (pUnknownAttribute) |
| 1288 | { |
| 1289 | ATOM_UNKNOWN_ATTRIBUTE* pFree = pUnknownAttribute; |
| 1290 | pUnknownAttribute = pUnknownAttribute->pNext; |
| 1291 | |
| 1292 | ReleaseStr(pFree->wzNamespace); |
| 1293 | ReleaseStr(pFree->wzAttribute); |
| 1294 | ReleaseStr(pFree->wzValue); |
| 1295 | MemFree(pFree); |
| 1296 | } |
| 1297 | } |