feat(libSceNpCppWebApi): iterate Vector<String> with begin, end and the Iterator<String> operators

core/libs/prx/libSceNpCppWebApi/Export.cpp

@@ -1762,6 +1762,16 @@ static int VectorPushBackString(IntrusivePtr* self, const CommonString* element)
     body->size += 1;
     return 0;
 }
+
+static_assert(sizeof(CommonIterator) == 0x10 && offsetof(CommonIterator, element) == 0x08);
+
+static CommonString* StringVectorElements(const IntrusivePtr* self, const bool end, const char* function) {
+    const auto* body = static_cast<const VectorBody*>(self->object);
+    if (body == nullptr) return nullptr;
+    if (body->magic != VectorBodyMagic || body->elementKind != 2) NotImplemented_nid_no_patch(function);
+    auto* elements = static_cast<CommonString*>(body->elements);
+    return end && body->size != 0 ? elements + body->size : elements;
+}
 // --------------------------------------------------------------------------
 // SessionManager2V1 and extra Common symbols, from a title dump whose modules lack
 // libSceNpCppWebApi.prx.
@@ -3968,9 +3978,9 @@ void APS5_VABI _ZN3sce2Np9CppWebApi6Common12IntrusivePtrINS2_6VectorINS3_INS1_13
     AssignIntrusivePtr(self, source, 0x30, __func__);
 }
 
-int APS5_VABI _ZN3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEppEv() {
-    NotImplemented_nid_no_patch(__func__);
-    return 0;
+CommonIterator* APS5_VABI _ZN3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEppEv(CommonIterator* self) {
+    self->element = static_cast<CommonString*>(self->element) + 1;
+    return self;
 }
 
 void APS5_VABI _ZN3sce2Np9CppWebApi6Common12IntrusivePtrINS2_6VectorImEEEC1Ev(IntrusivePtr* self) {
@@ -3991,9 +4001,8 @@ void* APS5_VABI _ZNK3sce2Np9CppWebApi6Common12IntrusivePtrINS2_6VectorImEEE3getE
     return self->object;
 }
 
-int APS5_VABI _ZNK3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEneERKS5_() {
-    NotImplemented_nid_no_patch(__func__);
-    return 0;
+bool APS5_VABI _ZNK3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEneERKS5_(const CommonIterator* self, const CommonIterator* other) {
+    return self->element != other->element;
 }
 
 int APS5_VABI _ZNK3sce2Np9CppWebApi6Common11TransactionINS2_15DefaultResponseENS2_12IntrusivePtrINS2_18ResponseHeaderBaseEEEE11hasResponseEv() {
@@ -4004,9 +4013,10 @@ void* APS5_VABI _ZNK3sce2Np9CppWebApi6Common12IntrusivePtrINS2_6VectorINS2_6Stri
     return self->object;
 }
 
-int APS5_VABI _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE3endEv() {
-    NotImplemented_nid_no_patch(__func__);
-    return 0;
+CommonIterator* APS5_VABI _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE3endEv(CommonIterator* iterator, const IntrusivePtr* self) {
+    iterator->referenceCount = 0;
+    iterator->element = StringVectorElements(self, true, __func__);
+    return iterator;
 }
 
 int APS5_VABI _ZN3sce2Np9CppWebApi6Common6StringeqEPKc(const CommonString* self, const char* other) {
@@ -4021,19 +4031,19 @@ int APS5_VABI _ZN3sce2Np9CppWebApi6Common15TransactionBaseINS2_15DefaultResponse
     return TransactionNotStarted;
 }
 
-int APS5_VABI _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE5beginEv() {
-    NotImplemented_nid_no_patch(__func__);
-    return 0;
+CommonIterator* APS5_VABI _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE5beginEv(CommonIterator* iterator, const IntrusivePtr* self) {
+    iterator->referenceCount = 0;
+    iterator->element = StringVectorElements(self, false, __func__);
+    return iterator;
 }
 
 
 void* APS5_VABI _ZNK3sce2Np9CppWebApi6Common12IntrusivePtrINS2_6VectorINS2_6StringEEEE3getEv(const IntrusivePtr* self) {
     return self->object;
 }
 
-int APS5_VABI _ZNK3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEdeEv() {
-    NotImplemented_nid_no_patch(__func__);
-    return 0;
+CommonString* APS5_VABI _ZNK3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEdeEv(const CommonIterator* self) {
+    return static_cast<CommonString*>(self->element);
 }
 
 // --------------------------------------------------------------------------

core/libs/prx/libSceNpCppWebApi/include/Api.hpp

@@ -15,6 +15,11 @@ struct IntrusivePtr {
     void* libContext;
 };
 
+struct CommonIterator {
+    std::int32_t referenceCount;
+    void* element;
+};
+
 extern "C" {
 int APS5_VABI _ZN3sce2Np9CppWebApi10Activities2V114UserActivities11ActivityApi28ParameterToGetUserActivitiesC1Ev(void* self);
 int APS5_VABI _ZN3sce2Np9CppWebApi10Activities2V114UserActivities11ActivityApi28ParameterToGetUserActivitiesC2Ev(void* self);
@@ -796,21 +801,21 @@ void* APS5_VABI _ZNK3sce2Np9CppWebApi6Common12IntrusivePtrINS2_6VectorINS3_INS1_
 int APS5_VABI _ZN3sce2Np9CppWebApi6Common8IteratorINS2_12IntrusivePtrINS1_13InGameCatalog2V53SkuEEEEppEv();
 int APS5_VABI _ZNK3sce2Np9CppWebApi6Common6VectorINS2_12IntrusivePtrINS1_13InGameCatalog2V59ContainerEEEE5emptyEv(const IntrusivePtr* self);
 void APS5_VABI _ZN3sce2Np9CppWebApi6Common12IntrusivePtrINS2_6VectorINS3_INS1_13InGameCatalog2V59ContainerEEEEEEaSERKSA_(IntrusivePtr* self, const IntrusivePtr* source);
-int APS5_VABI _ZN3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEppEv();
+CommonIterator* APS5_VABI _ZN3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEppEv(CommonIterator* self);
 void APS5_VABI _ZN3sce2Np9CppWebApi6Common12IntrusivePtrINS2_6VectorImEEEC1Ev(IntrusivePtr* self);
 int APS5_VABI _ZN3sce2Np9CppWebApi6Common13ConstIteratorINS2_6StringEED2Ev(void* self);
 int APS5_VABI _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE8copyFromERKS5_();
 void* APS5_VABI _ZNK3sce2Np9CppWebApi6Common12IntrusivePtrINS2_6VectorImEEE3getEv(const IntrusivePtr* self);
-int APS5_VABI _ZNK3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEneERKS5_();
+bool APS5_VABI _ZNK3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEneERKS5_(const CommonIterator* self, const CommonIterator* other);
 int APS5_VABI _ZNK3sce2Np9CppWebApi6Common11TransactionINS2_15DefaultResponseENS2_12IntrusivePtrINS2_18ResponseHeaderBaseEEEE11hasResponseEv();
 void* APS5_VABI _ZNK3sce2Np9CppWebApi6Common12IntrusivePtrINS2_6VectorINS2_6StringEEEEptEv(const IntrusivePtr* self);
-int APS5_VABI _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE3endEv();
+CommonIterator* APS5_VABI _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE3endEv(CommonIterator* iterator, const IntrusivePtr* self);
 int APS5_VABI _ZN3sce2Np9CppWebApi6Common6StringeqEPKc(const CommonString* self, const char* other);
 std::int64_t APS5_VABI _ZNK3sce2Np9CppWebApi6Common15TransactionBaseINS2_15DefaultResponseENS2_12IntrusivePtrINS2_18ResponseHeaderBaseEEEE5getIdEv();
 int APS5_VABI _ZN3sce2Np9CppWebApi6Common15TransactionBaseINS2_15DefaultResponseENS2_12IntrusivePtrINS2_18ResponseHeaderBaseEEEE5abortEv();
-int APS5_VABI _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE5beginEv();
+CommonIterator* APS5_VABI _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE5beginEv(CommonIterator* iterator, const IntrusivePtr* self);
 void* APS5_VABI _ZNK3sce2Np9CppWebApi6Common12IntrusivePtrINS2_6VectorINS2_6StringEEEE3getEv(const IntrusivePtr* self);
-int APS5_VABI _ZNK3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEdeEv();
+CommonString* APS5_VABI _ZNK3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEdeEv(const CommonIterator* self);
 
 int APS5_VABI _ZN3sce2Np9CppWebApi11UserProfile2V115BasicProfileApi28ParameterToGetPublicProfilesD1Ev();
 int APS5_VABI _ZNK3sce2Np9CppWebApi6Common8IteratorINS2_12IntrusivePtrINS1_11UserProfile2V112BasicProfileEEEEdeEv();

core/libs/tests/GuestNpCppWebApiString.cpp

@@ -36,6 +36,10 @@ constexpr std::size_t kBodyElementKindOffset = 0x34;
 constexpr std::size_t kBodyElementsOffset = 0x38;
 constexpr std::size_t kBodySizeOffset = 0x40;
 
+constexpr std::size_t kIteratorSize = 0x10;
+constexpr std::size_t kIteratorReferenceCountOffset = 0x00;
+constexpr std::size_t kIteratorElementOffset = 0x08;
+
 struct Storage {
     alignas(8) unsigned char bytes[kStringSize + kGuardSize];
 };
@@ -44,6 +48,10 @@ struct VectorStorage {
     alignas(8) unsigned char bytes[kVectorSize + kGuardSize];
 };
 
+struct IteratorStorage {
+    alignas(8) unsigned char bytes[kIteratorSize + kGuardSize];
+};
+
 template <typename TValue>
 TValue Load(const Storage& storage, std::size_t offset) {
     TValue value;
@@ -77,6 +85,20 @@ bool VectorGuardIntact(const VectorStorage& storage) {
     return true;
 }
 
+bool IteratorGuardIntact(const IteratorStorage& storage) {
+    for (std::size_t i = kIteratorSize; i < sizeof(storage.bytes); i++) {
+        if (storage.bytes[i] != kFill) return false;
+    }
+    return true;
+}
+
+template <typename TValue>
+TValue LoadIterator(const IteratorStorage& storage, std::size_t offset) {
+    TValue value;
+    std::memcpy(&value, storage.bytes + offset, sizeof(value));
+    return value;
+}
+
 void TestConstructedStringIsEmpty() {
     std::uint64_t libContext = 1;
     Storage storage;
@@ -257,6 +279,93 @@ void TestVectorPushBackCopiesStringContent() {
     Require(VectorGuardIntact(vector));
 }
 
+void TestVectorIterationVisitsStringsInOrder() {
+    std::uint64_t libContext = 1;
+    VectorStorage vector;
+    IteratorStorage first;
+    IteratorStorage last;
+    std::memset(vector.bytes, kFill, sizeof(vector.bytes));
+    std::memset(first.bytes, kFill, sizeof(first.bytes));
+    std::memset(last.bytes, kFill, sizeof(last.bytes));
+    auto* self = reinterpret_cast<IntrusivePtr*>(vector.bytes);
+    auto* firstIterator = reinterpret_cast<CommonIterator*>(first.bytes);
+    auto* lastIterator = reinterpret_cast<CommonIterator*>(last.bytes);
+
+    _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEEC1EPNS2_10LibContextE(self, &libContext);
+    Require(_ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE5beginEv(firstIterator, self) == firstIterator);
+    Require(_ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE3endEv(lastIterator, self) == lastIterator);
+    Require(!_ZNK3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEneERKS5_(firstIterator, lastIterator));
+
+    const char* const texts[] = {"first", "second", "third"};
+    for (const char* text : texts) {
+        Storage element;
+        std::memset(element.bytes, kFill, sizeof(element.bytes));
+        _ZN3sce2Np9CppWebApi6Common6StringC1EPNS2_10LibContextE(reinterpret_cast<CommonString*>(element.bytes), &libContext);
+        Require(_ZN3sce2Np9CppWebApi6Common6String6appendEPKc(reinterpret_cast<CommonString*>(element.bytes), text) == 0);
+        Require(_ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE8pushBackERKS4_(self, element.bytes) == 0);
+        _ZN3sce2Np9CppWebApi6Common6StringD1Ev(reinterpret_cast<CommonString*>(element.bytes));
+    }
+
+    std::memset(first.bytes, kFill, sizeof(first.bytes));
+    std::memset(last.bytes, kFill, sizeof(last.bytes));
+    _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE5beginEv(firstIterator, self);
+    _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE3endEv(lastIterator, self);
+    Require(LoadIterator<std::int32_t>(first, kIteratorReferenceCountOffset) == 0);
+    Require(LoadIterator<std::int32_t>(last, kIteratorReferenceCountOffset) == 0);
+    Require(LoadIterator<unsigned char*>(last, kIteratorElementOffset) - LoadIterator<unsigned char*>(first, kIteratorElementOffset) == 3 * kStringSize);
+    Require(IteratorGuardIntact(first) && IteratorGuardIntact(last));
+
+    std::size_t visited = 0;
+    while (_ZNK3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEneERKS5_(firstIterator, lastIterator)) {
+        Require(visited < 3);
+        const CommonString* element = _ZNK3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEdeEv(firstIterator);
+        Require(static_cast<const void*>(element) == LoadIterator<void*>(first, kIteratorElementOffset));
+        Require(std::strcmp(_ZNK3sce2Np9CppWebApi6Common6String5c_strEv(element), texts[visited]) == 0);
+        Require(_ZN3sce2Np9CppWebApi6Common8IteratorINS2_6StringEEppEv(firstIterator) == firstIterator);
+        ++visited;
+    }
+    Require(visited == 3);
+    Require(IteratorGuardIntact(first));
+
+    _ZN3sce2Np9CppWebApi6Common13ConstIteratorINS2_6StringEED2Ev(firstIterator);
+    _ZN3sce2Np9CppWebApi6Common13ConstIteratorINS2_6StringEED2Ev(lastIterator);
+    _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEED1Ev(self);
+    Require(VectorGuardIntact(vector));
+}
+
+bool BeginThrows(const IntrusivePtr* vector) {
+    IteratorStorage iterator;
+    try {
+        _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE5beginEv(reinterpret_cast<CommonIterator*>(iterator.bytes), vector);
+    } catch (const std::runtime_error&) {
+        return true;
+    }
+    return false;
+}
+
+bool EndThrows(const IntrusivePtr* vector) {
+    IteratorStorage iterator;
+    try {
+        _ZN3sce2Np9CppWebApi6Common6VectorINS2_6StringEE3endEv(reinterpret_cast<CommonIterator*>(iterator.bytes), vector);
+    } catch (const std::runtime_error&) {
+        return true;
+    }
+    return false;
+}
+
+void TestVectorIterationRejectsOtherBodies() {
+    std::uint64_t libContext = 1;
+    VectorStorage vector;
+    std::memset(vector.bytes, kFill, sizeof(vector.bytes));
+    auto* self = reinterpret_cast<IntrusivePtr*>(vector.bytes);
+    const IntrusivePtr empty{nullptr, nullptr, &libContext};
+    _ZN3sce2Np9CppWebApi6Common6VectorINS2_12IntrusivePtrINS1_14SessionManager2V112JoinableUserEEEEC1EPNS2_10LibContextE(self, &libContext);
+    Require(_ZN3sce2Np9CppWebApi6Common6VectorINS2_12IntrusivePtrINS1_14SessionManager2V112JoinableUserEEEE8pushBackERKS8_(self, &empty) == 0);
+    Require(BeginThrows(self));
+    Require(EndThrows(self));
+    _ZN3sce2Np9CppWebApi6Common6VectorINS2_12IntrusivePtrINS1_14SessionManager2V112JoinableUserEEEED1Ev(self);
+}
+
 void TestStringEmptyAndEquals() {
     std::uint64_t libContext = 1;
     Storage storage;
@@ -406,6 +515,8 @@ int main(int argc, char** argv) {
     TestAppendBuildsAndClearsBuffer();
     TestAppendNullKeepsEmpty();
     TestVectorPushBackCopiesStringContent();
+    TestVectorIterationVisitsStringsInOrder();
+    TestVectorIterationRejectsOtherBodies();
     TestStringEmptyAndEquals();
     TestStringCopyFromAndObservers();
     TestIntrusivePtrVectorPushBack();

docs/dev/debt/libSceNpCppWebApi.md

@@ -17,7 +17,7 @@
 - [sce::Np::CppWebApi](../../../core/libs/prx/libSceNpCppWebApi/Export.cpp) (libSceNpCppWebApi) - every request entry point (API calls, transaction `start`/`getResponse`/`readData`, the `*Factory::create`s) returns `SCE_NP_WEBAPI_ERROR_NOT_SIGNED_IN` offline. The constant's name and value follow the reference tables in shadPS4 `np_error.h` and fpPS4 `np_error.pas`, where `0x80552907` is `ORBIS_NP_WEBAPI_ERROR_NOT_SIGNED_IN` and `0x80552901` is `OUT_OF_MEMORY` (no `UNAVAILABLE` exists in the `0x80552901`-`0x8055291F` range); it is the code a signed-out console returns from these entry points. The earlier `0x80552901` value came from the module the previous implementation shipped, which used the same incorrect constant
 - [sce::Np::CppWebApi::Common::IntrusivePtr](../../../core/libs/prx/libSceNpCppWebApi/Export.cpp) (libSceNpCppWebApi) - the 0x18-byte layout (object, deleter, `LibContext*`) and the offset of the 32-bit reference count in the pointee (0x00; in a `Vector`, 0x20 for `unsigned long`, 0x30 for `IntrusivePtr` and 0x38 for `String` elements) come from the module bundled with one title (PPSA21564); other SDK versions are not checked. The destructor throws on the last reference of a pointer without a deleter: destroying the object needs its destructor and the `LibContext` allocator, which are not implemented
 - [sce::Np::CppWebApi::Common::String](../../../core/libs/prx/libSceNpCppWebApi/Export.cpp) (libSceNpCppWebApi) - the 0x20-byte layout (32-bit reference count, buffer at 0x08, used size including the terminator at 0x10, `LibContext*` at 0x18), the `+0x10` semantics and the `0x80553503`/`0x80553504` results follow the module bundled with PPSA21564 and PPSA23732 (builds J03093737/J03341606): `append`, `copyFrom`, `clear`, `size`, `length`, `operator==`, `setContext` and the intrusive reference operations match it. Allocation and release still use the host allocator instead of the `LibContext` allocator, so a title-provided buffer released through this destructor would use the wrong allocator; `find`, `replace` and `npos` remain unimplemented. `pushBack` into `Vector<String>` stores a deep copy, so a destroyed temporary cannot invalidate the stored element; a title that byte-copies a `String` with a live buffer would still double-free, as nothing increments the reference count
-- [sce::Np::CppWebApi::Common::Vector](../../../core/libs/prx/libSceNpCppWebApi/Export.cpp) (libSceNpCppWebApi) - imported by PPSA03671, whose dump ships no `libSceNpCppWebApi.prx`. A `Vector` handle is an `IntrusivePtr` over a shared body; bodies created by `pushBack` use a host-side layout with the reference count at 0x30. The pointer/deleter constructor adopts a title-provided `Vector<String>`, counting the reference at 0x38, which the `Vector<String>` constructor zeroes, as the module bundled with PPSA21564 does, and releases it through the stored deleter; `pushBack` on such a body throws, since its element layout is unknown. `begin`, `end`, iterators and `copyFrom` throw: the only `Vector`s the title reads back come from failed transactions, which never produce one. `empty`, `size` and `operator[]` read the host-created body honestly and throw on title-provided bodies
+- [sce::Np::CppWebApi::Common::Vector](../../../core/libs/prx/libSceNpCppWebApi/Export.cpp) (libSceNpCppWebApi) - imported by PPSA03671, whose dump ships no `libSceNpCppWebApi.prx`. A `Vector` handle is an `IntrusivePtr` over a shared body; bodies created by `pushBack` use a host layout with the reference count at 0x30. The pointer/deleter constructor adopts a title-provided `Vector<String>`, counting the reference at 0x38, which the `Vector<String>` constructor zeroes, as the module bundled with PPSA21564 does, and releases it through the stored deleter; `pushBack` on such a body throws, as its element layout is unknown. `Vector<String>::begin`/`end` and `Iterator<String>` operators walk host-created bodies and throw on title-provided ones; other `begin`, `end` and iterators, and `copyFrom`, throw: the only `Vector`s the title reads back come from failed transactions, which never produce one. `empty`, `size` and `operator[]` read host-created bodies and throw on title-provided ones
 - [sce::Np::CppWebApi::SessionManager2V1](../../../core/libs/prx/libSceNpCppWebApi/Export.cpp) (libSceNpCppWebApi) - imported by PPSA03671. Offline, the factories, `PlayerSessionsApi` calls and transaction `start`/`getResponse`/`readData` fail with `SCE_NP_WEBAPI_ERROR_NOT_SIGNED_IN`; parameter setters, `initialize`, `terminate`, constructors and destructors succeed without keeping state, as no request is ever sent. Response-body accessors (`getSessionId`, `getPlayerSessions`, `getInvitations`, the `IsSet` queries) throw: a failed request never produces a response object
 - [sce::Np::CppWebApi::Matchmaking::V1](../../../core/libs/prx/libSceNpCppWebApi/Export.cpp) (libSceNpCppWebApi) - imported by PPSA21564 (86 of 92) and PPSA05510, PPSA25256, PPSA17226 and PPSA08395 for the other six; behaviour comes from the module bundled with PPSA21564/PPSA23732 (builds J03093737/J03341606), not from a console. Offline, the four `Api` calls and four factories return `SCE_NP_WEBAPI_ERROR_NOT_SIGNED_IN`. The four `ParameterTo*` objects keep only an initialized flag: `initialize` returns 0x80553503 for a null context or string, 0x80553502 for an unset context, 0x8055350f when already initialized and 0x80553512 for an empty `SubmitTicketRequestBody`; `terminate` returns 0x80553510. `ParameterToGetTicket::setview` returns 0x80553502 uninitialized and 0x80553503 for a null string. Other setters succeed without keeping state. Response accessors throw: a failed request produces no response. 0x80553504 is never returned; the stub stores a static pointer.
 - [sce::Np::CppWebApi::UserProfile::V1, ProfanityFilter::V2, CommunicationRestrictionStatus::V3](../../../core/libs/prx/libSceNpCppWebApi/Export.cpp) (libSceNpCppWebApi) - imported by an Epic Online Services module whose dump ships no `libSceNpCppWebApi.prx`. The reference-count offset 0x00 of `ResponseHeaderBase` and `WebApiFilterRequest` is assumed from the other objects, not measured. Offline, the five API calls, `WebApiFilterRequestFactory::create` and the transactions' `start`/`getResponseHeaders` fail with `SCE_NP_WEBAPI_ERROR_NOT_SIGNED_IN`. Response accessors, `ResponseHeaderBase::getHeaderValue` and the `Vector`/`Iterator` members over `unsigned long` and those over `IntrusivePtr<UserProfile::V1::BasicPresence>` other than `size` throw: a failed request never produces a response