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-rw-r--r--doc/aerc-imap.5.scd18
-rw-r--r--go.mod3
-rw-r--r--go.sum11
-rw-r--r--lib/oauthbearer.go42
-rw-r--r--worker/imap/worker.go34
5 files changed, 100 insertions, 8 deletions
diff --git a/doc/aerc-imap.5.scd b/doc/aerc-imap.5.scd
index 12dcfbe..4307238 100644
--- a/doc/aerc-imap.5.scd
+++ b/doc/aerc-imap.5.scd
@@ -19,7 +19,7 @@ In accounts.conf (see *aerc-config*(5)), the following IMAP-specific options are
 available:
 
 *source*
-	imap[s][+insecure]://username[:password]@hostname[:port]
+	imap[s][+insecure|+oauthbearer]://username[:password]@hostname[:port]?[:oauth2_params]
 
 	Remember that all fields must be URL encoded. The "@" symbol, when URL
 	encoded, is *%40*.
@@ -35,6 +35,22 @@ available:
 	*imaps*:
 		IMAP with TLS/SSL
 
+	*imaps+oauthbearer://*
+		IMAP with TLS/SSL using OAUTHBEARER Authentication
+
+		*oauth2_params:*
+
+		If specified, the configured password is used as an refresh token that
+		is exhanged with an access token
+
+		- token_endpoint (required)
+		- client_id (optional)
+		- client_secret (optional)
+		- scope (optional)
+
+		Example:
+		imaps+oauthbearer://...?token_endpoint=https://...&client_id=
+
 *source-cred-cmd*
 	Specifies the command to run to get the password for the IMAP
 	account. This command will be run using `sh -c [command]`. If a
diff --git a/go.mod b/go.mod
index 1c3d156..ab0a033 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ require (
 	github.com/emersion/go-imap v1.0.0-beta.6
 	github.com/emersion/go-imap-idle v0.0.0-20190519112320-2704abd7050e
 	github.com/emersion/go-message v0.10.3
-	github.com/emersion/go-sasl v0.0.0-20190520160400-47d427600317
+	github.com/emersion/go-sasl v0.0.0-20190704090222-36b50694675c
 	github.com/emersion/go-smtp v0.11.1
 	github.com/gdamore/tcell v1.1.2
 	github.com/go-ini/ini v1.42.0
@@ -28,6 +28,7 @@ require (
 	github.com/smartystreets/assertions v1.0.0 // indirect
 	github.com/smartystreets/goconvey v0.0.0-20190330032615-68dc04aab96a // indirect
 	github.com/stretchr/testify v1.3.0
+	golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
 	golang.org/x/sys v0.0.0-20190602015325-4c4f7f33c9ed // indirect
 	gopkg.in/ini.v1 v1.42.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 6c33d94..ab11314 100644
--- a/go.sum
+++ b/go.sum
@@ -1,3 +1,4 @@
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 git.sr.ht/~sircmpwn/getopt v0.0.0-20190214165041-9a4f886f9fc7 h1:xTFH5S/3ltiRvAtETLLDFWm5nVIouT5GeCPHm8UaVEU=
 git.sr.ht/~sircmpwn/getopt v0.0.0-20190214165041-9a4f886f9fc7/go.mod h1:wMEGFFFNuPos7vHmWXfszqImLppbc0wEhh6JBfJIUgw=
 git.sr.ht/~sircmpwn/getopt v0.0.0-20190609193657-e7e23d1cd3a3 h1:2l17fmuVbiS2cSx1m8e8GbikDUjAT5lril3/+XQsZAs=
@@ -28,6 +29,8 @@ github.com/emersion/go-sasl v0.0.0-20161116183048-7e096a0a6197 h1:rDJPbyliyym8ZL
 github.com/emersion/go-sasl v0.0.0-20161116183048-7e096a0a6197/go.mod h1:G/dpzLu16WtQpBfQ/z3LYiYJn3ZhKSGWn83fyoyQe/k=
 github.com/emersion/go-sasl v0.0.0-20190520160400-47d427600317 h1:tYZxAY8nu3JJQKios9f27Sbvbkfm4XHXT476gVtszu0=
 github.com/emersion/go-sasl v0.0.0-20190520160400-47d427600317/go.mod h1:G/dpzLu16WtQpBfQ/z3LYiYJn3ZhKSGWn83fyoyQe/k=
+github.com/emersion/go-sasl v0.0.0-20190704090222-36b50694675c h1:Spm8jy+jWYG/Dn6ygbq/LBW/6M27kg59GK+FkKjexuw=
+github.com/emersion/go-sasl v0.0.0-20190704090222-36b50694675c/go.mod h1:G/dpzLu16WtQpBfQ/z3LYiYJn3ZhKSGWn83fyoyQe/k=
 github.com/emersion/go-smtp v0.11.1 h1:2IBWhU2zjrfOOmZal3qRxVsfYnf0rN+ccImZrjnMT7E=
 github.com/emersion/go-smtp v0.11.1/go.mod h1:CfUbM5NgspbOMHFEgCdoK2PVrKt48HAPtL8hnahwfYg=
 github.com/emersion/go-textwrapper v0.0.0-20160606182133-d0e65e56babe h1:40SWqY0zE3qCi6ZrtTf5OUdNm5lDnGnjRSq9GgmeTrg=
@@ -36,6 +39,7 @@ github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdk
 github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
 github.com/go-ini/ini v1.42.0 h1:TWr1wGj35+UiWHlBA8er89seFXxzwFn11spilrrj+38=
 github.com/go-ini/ini v1.42.0/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
+github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/google/shlex v0.0.0-20181106134648-c34317bd91bf h1:7+FW5aGwISbqUtkfmIpZJGRgNFg2ioYPvFaUxdqpDsg=
 github.com/google/shlex v0.0.0-20181106134648-c34317bd91bf/go.mod h1:RpwtwJQFrIEPstU94h88MWPXP2ektJZ8cZ0YntAmXiE=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
@@ -77,7 +81,13 @@ github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/image v0.0.0-20190523035834-f03afa92d3ff/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
+golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a h1:oWX7TPOiFAMXLq8o0ikBYfCJVlRHBcsciT5bXOrH628=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 h1:SVwTIAaPC2U/AvvLNZ2a7OVsmBpC8L5BlwK1whH3hm0=
+golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
+golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190602015325-4c4f7f33c9ed h1:uPxWBzB3+mlnjy9W58qY1j/cjyFjutgw/Vhan2zLy/A=
@@ -88,5 +98,6 @@ golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 gopkg.in/ini.v1 v1.42.0 h1:7N3gPTt50s8GuLortA00n8AqRTk75qOP98+mTPpgzRk=
 gopkg.in/ini.v1 v1.42.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
diff --git a/lib/oauthbearer.go b/lib/oauthbearer.go
new file mode 100644
index 0000000..5bcba60
--- /dev/null
+++ b/lib/oauthbearer.go
@@ -0,0 +1,42 @@
+package lib
+
+import (
+	"context"
+	"fmt"
+	"github.com/emersion/go-imap/client"
+	"github.com/emersion/go-sasl"
+	"golang.org/x/oauth2"
+)
+
+type OAuthBearer struct {
+	OAuth2  *oauth2.Config
+	Enabled bool
+}
+
+func (c *OAuthBearer) exchangeRefreshToken(refreshToken string) (*oauth2.Token, error) {
+	token := new(oauth2.Token)
+	token.RefreshToken = refreshToken
+	token.TokenType = "Bearer"
+	return c.OAuth2.TokenSource(context.TODO(), token).Token()
+}
+
+func (c *OAuthBearer) Authenticate(username string, password string, client *client.Client) error {
+	if ok, err := client.SupportAuth(sasl.OAuthBearer); err != nil || !ok {
+		return fmt.Errorf("OAuthBearer not supported %v", err)
+	}
+
+	if c.OAuth2.Endpoint.TokenURL != "" {
+		token, err := c.exchangeRefreshToken(password)
+		if err != nil {
+			return err
+		}
+		password = token.AccessToken
+	}
+
+	saslClient := sasl.NewOAuthBearerClient(&sasl.OAuthBearerOptions{
+		Username: username,
+		Token:    password,
+	})
+
+	return client.Authenticate(saslClient)
+}
diff --git a/worker/imap/worker.go b/worker/imap/worker.go
index 88f8b37..de86994 100644
--- a/worker/imap/worker.go
+++ b/worker/imap/worker.go
@@ -9,7 +9,9 @@ import (
 	"github.com/emersion/go-imap"
 	idle "github.com/emersion/go-imap-idle"
 	"github.com/emersion/go-imap/client"
+	"golang.org/x/oauth2"
 
+	"git.sr.ht/~sircmpwn/aerc/lib"
 	"git.sr.ht/~sircmpwn/aerc/models"
 	"git.sr.ht/~sircmpwn/aerc/worker/types"
 )
@@ -23,11 +25,12 @@ type imapClient struct {
 
 type IMAPWorker struct {
 	config struct {
-		scheme   string
-		insecure bool
-		addr     string
-		user     *url.Userinfo
-		folders  []string
+		scheme      string
+		insecure    bool
+		addr        string
+		user        *url.Userinfo
+		folders     []string
+		oauthBearer lib.OAuthBearer
 	}
 
 	client   *imapClient
@@ -71,6 +74,20 @@ func (w *IMAPWorker) handleMessage(msg types.WorkerMessage) error {
 			w.config.i

void initializeSharedMemory() {
    Spinlock_Init(&gShmListLock);

    gShmList = List_Create();

    gShmRoot = getFileSystemNode("/system/shm");

    if (NULL == gShmRoot) {
        WARNING("/system/shm not found!!");
    }
    else {
        gShmRoot->open = sharedmemorydir_open;
        gShmRoot->finddir = sharedmemorydir_finddir;
        gShmRoot->readdir = sharedmemorydir_readdir;
    }
}

static BOOL sharedmemorydir_open(File *file, uint32 flags) {
    return TRUE;
}

static FileSystemDirent *sharedmemorydir_readdir(FileSystemNode *node, uint32 index) {
    FileSystemDirent* result = NULL;

    int counter = 0;

    Spinlock_Lock(&gShmListLock);

    List_Foreach (n, gShmList) {
        SharedMemory* p = (SharedMemory*)n->data;

        if (counter == index) {
            strcpy(gDirent.name, p->node->name);
            gDirent.fileType = p->node->nodeType;

            result = &gDirent;

            break;
        }
        ++counter;
    }

    Spinlock_Unlock(&gShmListLock);

    return result;
}

static FileSystemNode *sharedmemorydir_finddir(FileSystemNode *node, char *name) {
    FileSystemNode* result = NULL;

    Spinlock_Lock(&gShmListLock);

    List_Foreach (n, gShmList) {
        SharedMemory* p = (SharedMemory*)n->data;

        if (strcmp(name, p->node->name) == 0) {
            result = p->node;
            break;
        }
    }

    Spinlock_Unlock(&gShmListLock);

    return result;
}

static BOOL sharedmemory_open(File *file, uint32 flags) {
    return TRUE;
}

static void sharedmemory_unlink(File *file) {
    destroySharedMemory(file->node->name);
}

static int32 sharedmemory_ftruncate(File *file, int32 length) {
    if (length <= 0) {
        return -1;
    }

    SharedMemory* sharedMem = (SharedMemory*)file->node->privateNodeData;

    if (0 != file->node->length) {
        //already set
        return -1;
    }

    int pageCount = (length / PAGESIZE_4M) + 1;

    Spinlock_Lock(&sharedMem->physicalAddressListLock);

    for (int i = 0; i < pageCount; ++i) {
        char* pAddress = getPageFrame4M();

        List_Append(sharedMem->physicalAddressList, pAddress);
    }

    file->node->length = length;

    Spinlock_Unlock(&sharedMem->physicalAddressListLock);

    return 0;
}

static void* sharedmemory_mmap(File* file, uint32 size, uint32 offset, uint32 flags) {
    void* result = NULL;

    SharedMemory* sharedMem = (SharedMemory*)file->node->privateNodeData;

    Spinlock_Lock(&sharedMem->physicalAddressListLock);

    if (List_GetCount(sharedMem->physicalAddressList) > 0) {
        result = mapMemory(file->thread->owner, size, 0, sharedMem->physicalAddressList);
    }

    Spinlock_Unlock(&sharedMem->physicalAddressListLock);

    return result;
}

FileSystemNode* getSharedMemoryNode(const char* name) {
    FileSystemNode* result = NULL;

    Spinlock_Lock(&gShmListLock);

    List_Foreach (n, gShmList) {
        SharedMemory* p = (SharedMemory*)n->data;

        if (strcmp(name, p->node->name) == 0) {
            result = p->node;
            break;
        }
    }

    Spinlock_Unlock(&gShmListLock);

    return result;
}

FileSystemNode* createSharedMemory(const char* name) {
    if (getSharedMemoryNode(name) != NULL) {
        return NULL;
    }

    SharedMemory* sharedMem = (SharedMemory*)kmalloc(sizeof(SharedMemory));
    memset((uint8*)sharedMem, 0, sizeof(SharedMemory));

    FileSystemNode* node = (FileSystemNode*)kmalloc(sizeof(FileSystemNode));
    memset((uint8*)node, 0, sizeof(FileSystemNode));

    strcpy(node->name, name);
    node->nodeType = FT_CharacterDevice;
    node->open = sharedmemory_open;
    //TODO: node->shm_unlink = sharedmemory_unlink;
    node->ftruncate = sharedmemory_ftruncate;
    node->mmap = sharedmemory_mmap;
    node->privateNodeData = sharedMem;

    sharedMem->node = node;
    sharedMem->physicalAddressList = List_Create();
    Spinlock_Init(&sharedMem->physicalAddressListLock);

    Spinlock_Lock(&gShmListLock);
    List_Append(gShmList, sharedMem);
    Spinlock_Unlock(&gShmListLock);

    return node;
}

void destroySharedMemory(const char* name) {
    SharedMemory* sharedMem = NULL;

    Spinlock_Lock(&gShmListLock);

    List_Foreach (n, gShmList) {
        SharedMemory* p = (SharedMemory*)n->data;

        if (strcmp(name, p->node->name) == 0) {
            sharedMem = (SharedMemory*)p;
            break;
        }
    }

    if (sharedMem) {
        Spinlock_Lock(&sharedMem->physicalAddressListLock);

        kfree(sharedMem->node);

        List_Destroy(sharedMem->physicalAddressList);

        List_RemoveFirstOccurrence(gShmList, sharedMem);

        Spinlock_Unlock(&sharedMem->physicalAddressListLock);

        kfree(sharedMem);
    }

    Spinlock_Unlock(&gShmListLock);
}