diff options
Diffstat (limited to 'libpurple/protocols/facebook/thrift.c')
| -rw-r--r-- | libpurple/protocols/facebook/thrift.c | 675 |
1 files changed, 0 insertions, 675 deletions
diff --git a/libpurple/protocols/facebook/thrift.c b/libpurple/protocols/facebook/thrift.c deleted file mode 100644 index 3d909a90dc..0000000000 --- a/libpurple/protocols/facebook/thrift.c +++ /dev/null @@ -1,675 +0,0 @@ -/* purple - * - * Purple is the legal property of its developers, whose names are too numerous - * to list here. Please refer to the COPYRIGHT file distributed with this - * source distribution. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA - */ - -#include <string.h> - -#include "thrift.h" - -/** - * FbThrift: - * - * Represents a reader/writer for compact Thrift data. - */ -struct _FbThrift { - GObject parent; - - GByteArray *bytes; - gboolean internal; - guint offset; - guint pos; - guint lastbool; -}; - -G_DEFINE_TYPE(FbThrift, fb_thrift, G_TYPE_OBJECT); - -static void -fb_thrift_dispose(GObject *obj) -{ - FbThrift* thft = FB_THRIFT(obj); - - if (thft->internal) { - g_byte_array_free(thft->bytes, TRUE); - thft->bytes = NULL; - thft->internal = FALSE; - } -} - -static void -fb_thrift_class_init(FbThriftClass *klass) -{ - GObjectClass *gklass = G_OBJECT_CLASS(klass); - - gklass->dispose = fb_thrift_dispose; -} - -static void -fb_thrift_init(G_GNUC_UNUSED FbThrift *thft) -{ -} - -FbThrift * -fb_thrift_new(GByteArray *bytes, guint offset) -{ - FbThrift *thft; - - thft = g_object_new(FB_TYPE_THRIFT, NULL); - - if (bytes != NULL) { - thft->bytes = bytes; - thft->offset = offset; - thft->pos = offset; - } else { - thft->bytes = g_byte_array_new(); - thft->internal = TRUE; - } - - return thft; -} - -const GByteArray * -fb_thrift_get_bytes(FbThrift *thft) -{ - g_return_val_if_fail(FB_IS_THRIFT(thft), NULL); - - return thft->bytes; -} - -guint -fb_thrift_get_pos(FbThrift *thft) -{ - g_return_val_if_fail(FB_IS_THRIFT(thft), 0); - - return thft->pos; -} - -void -fb_thrift_set_pos(FbThrift *thft, guint pos) -{ - g_return_if_fail(FB_IS_THRIFT(thft)); - - thft->pos = pos; -} - -void -fb_thrift_reset(FbThrift *thft) -{ - g_return_if_fail(FB_IS_THRIFT(thft)); - - thft->pos = thft->offset; -} - -gboolean -fb_thrift_read(FbThrift *thft, gpointer data, guint size) -{ - g_return_val_if_fail(FB_IS_THRIFT(thft), FALSE); - - if ((thft->pos + size) > thft->bytes->len) { - return FALSE; - } - - if ((data != NULL) && (size > 0)) { - memcpy(data, thft->bytes->data + thft->pos, size); - } - - thft->pos += size; - return TRUE; -} - -gboolean -fb_thrift_read_bool(FbThrift *thft, gboolean *value) -{ - guint8 byte; - - g_return_val_if_fail(FB_IS_THRIFT(thft), FALSE); - - if ((thft->lastbool & 0x03) != 0x01) { - if (!fb_thrift_read_byte(thft, &byte)) { - return FALSE; - } - - if (value != NULL) { - *value = (byte & 0x0F) == 0x01; - } - - thft->lastbool = 0; - return TRUE; - } - - if (value != NULL) { - *value = ((thft->lastbool & 0x04) >> 2) != 0; - } - - thft->lastbool = 0; - return TRUE; -} - -gboolean -fb_thrift_read_byte(FbThrift *thft, guint8 *value) -{ - return fb_thrift_read(thft, value, sizeof *value); -} - -gboolean -fb_thrift_read_dbl(FbThrift *thft, gdouble *value) -{ - gint64 i64; - - /* Almost always 8, but check anyways */ - static const gsize size = MIN(sizeof value, sizeof i64); - - if (!fb_thrift_read_i64(thft, &i64)) { - return FALSE; - } - - if (value != NULL) { - memcpy(value, &i64, size); - } - - return TRUE; -} - -gboolean -fb_thrift_read_i16(FbThrift *thft, gint16 *value) -{ - gint64 i64; - - if (!fb_thrift_read_i64(thft, &i64)) { - return FALSE; - } - - if (value != NULL) { - *value = i64; - } - - return TRUE; -} - -gboolean -fb_thrift_read_vi16(FbThrift *thft, guint16 *value) -{ - guint64 u64; - - if (!fb_thrift_read_vi64(thft, &u64)) { - return FALSE; - } - - if (value != NULL) { - *value = u64; - } - - return TRUE; -} - -gboolean -fb_thrift_read_i32(FbThrift *thft, gint32 *value) -{ - gint64 i64; - - if (!fb_thrift_read_i64(thft, &i64)) { - return FALSE; - } - - if (value != NULL) { - *value = i64; - } - - return TRUE; -} - -gboolean -fb_thrift_read_vi32(FbThrift *thft, guint32 *value) -{ - guint64 u64; - - if (!fb_thrift_read_vi64(thft, &u64)) { - return FALSE; - } - - if (value != NULL) { - *value = u64; - } - - return TRUE; -} - -gboolean -fb_thrift_read_i64(FbThrift *thft, gint64 *value) -{ - guint64 u64; - - if (!fb_thrift_read_vi64(thft, &u64)) { - return FALSE; - } - - if (value != NULL) { - /* Convert from zigzag to integer */ - *value = (u64 >> 0x01) ^ -(u64 & 0x01); - } - - return TRUE; -} - -gboolean -fb_thrift_read_vi64(FbThrift *thft, guint64 *value) -{ - guint i = 0; - guint8 byte; - guint64 u64 = 0; - - do { - if (!fb_thrift_read_byte(thft, &byte)) { - return FALSE; - } - - u64 |= ((guint64) (byte & 0x7F)) << i; - i += 7; - } while ((byte & 0x80) == 0x80); - - if (value != NULL) { - *value = u64; - } - - return TRUE; -} - -gboolean -fb_thrift_read_str(FbThrift *thft, gchar **value) -{ - guint8 *data; - guint32 size; - - if (!fb_thrift_read_vi32(thft, &size)) { - return FALSE; - } - - if (value != NULL) { - data = g_new(guint8, size + 1); - data[size] = 0; - } else { - data = NULL; - } - - if (!fb_thrift_read(thft, data, size)) { - g_free(data); - return FALSE; - } - - if (value != NULL) { - *value = (gchar *) data; - } - - return TRUE; -} - -gboolean -fb_thrift_read_field(FbThrift *thft, FbThriftType *type, gint16 *id, - gint16 lastid) -{ - gint16 i16; - guint8 byte; - - g_return_val_if_fail(FB_IS_THRIFT(thft), FALSE); - g_return_val_if_fail(type != NULL, FALSE); - g_return_val_if_fail(id != NULL, FALSE); - - if (!fb_thrift_read_byte(thft, &byte)) { - return FALSE; - } - - if (byte == FB_THRIFT_TYPE_STOP) { - *type = FB_THRIFT_TYPE_STOP; - return FALSE; - } - - *type = fb_thrift_ct2t(byte & 0x0F); - i16 = (byte & 0xF0) >> 4; - - if (i16 == 0) { - if (!fb_thrift_read_i16(thft, id)) { - return FALSE; - } - } else { - *id = lastid + i16; - } - - if (*type == FB_THRIFT_TYPE_BOOL) { - thft->lastbool = 0x01; - - if ((byte & 0x0F) == 0x01) { - thft->lastbool |= 0x01 << 2; - } - } - - return TRUE; -} - -gboolean -fb_thrift_read_stop(FbThrift *thft) -{ - guint8 byte; - - return fb_thrift_read_byte(thft, &byte) && - (byte == FB_THRIFT_TYPE_STOP); -} - -gboolean -fb_thrift_read_isstop(FbThrift *thft) -{ - guint8 byte; - - g_return_val_if_fail(FB_IS_THRIFT(thft), FALSE); - - if (!fb_thrift_read_byte(thft, &byte)) { - return FALSE; - } - - thft->pos--; - return byte == FB_THRIFT_TYPE_STOP; -} - -gboolean -fb_thrift_read_list(FbThrift *thft, FbThriftType *type, guint *size) -{ - guint8 byte; - guint32 u32; - - g_return_val_if_fail(type != NULL, FALSE); - g_return_val_if_fail(size != NULL, FALSE); - - if (!fb_thrift_read_byte(thft, &byte)) { - return FALSE; - } - - *type = fb_thrift_ct2t(byte & 0x0F); - *size = (byte & 0xF0) >> 4; - - if (*size == 0x0F) { - if (!fb_thrift_read_vi32(thft, &u32)) { - return FALSE; - } - - *size = u32; - } - - return TRUE; -} - -gboolean -fb_thrift_read_map(FbThrift *thft, FbThriftType *ktype, FbThriftType *vtype, - guint *size) -{ - gint32 i32; - guint8 byte; - - g_return_val_if_fail(ktype != NULL, FALSE); - g_return_val_if_fail(vtype != NULL, FALSE); - g_return_val_if_fail(size != NULL, FALSE); - - if (!fb_thrift_read_i32(thft, &i32)) { - return FALSE; - } - - if (i32 != 0) { - if (!fb_thrift_read_byte(thft, &byte)) { - return FALSE; - } - - *ktype = fb_thrift_ct2t((byte & 0xF0) >> 4); - *vtype = fb_thrift_ct2t(byte & 0x0F); - } else { - *ktype = 0; - *vtype = 0; - } - - *size = i32; - return TRUE; -} - -gboolean -fb_thrift_read_set(FbThrift *thft, FbThriftType *type, guint *size) -{ - return fb_thrift_read_list(thft, type, size); -} - -void -fb_thrift_write(FbThrift *thft, gconstpointer data, guint size) -{ - g_return_if_fail(FB_IS_THRIFT(thft)); - - g_byte_array_append(thft->bytes, data, size); - thft->pos += size; -} - -void -fb_thrift_write_bool(FbThrift *thft, gboolean value) -{ - guint pos; - - g_return_if_fail(FB_IS_THRIFT(thft)); - - if ((thft->lastbool & 0x03) != 0x02) { - fb_thrift_write_byte(thft, value ? 0x01 : 0x02); - return; - } - - pos = thft->lastbool >> 3; - thft->lastbool = 0; - - if ((pos >= thft->offset) && (pos < thft->bytes->len)) { - thft->bytes->data[pos] &= ~0x0F; - thft->bytes->data[pos] |= value ? 0x01 : 0x02; - } -} - -void -fb_thrift_write_byte(FbThrift *thft, guint8 value) -{ - fb_thrift_write(thft, &value, sizeof value); -} - -void -fb_thrift_write_dbl(FbThrift *thft, gdouble value) -{ - gint64 i64; - - /* Almost always 8, but check anyways */ - static const gsize size = MIN(sizeof value, sizeof i64); - - memcpy(&i64, &value, size); - fb_thrift_write_i64(thft, i64); -} - -void -fb_thrift_write_i16(FbThrift *thft, gint16 value) -{ - fb_thrift_write_i64(thft, value); -} - -void -fb_thrift_write_vi16(FbThrift *thft, guint16 value) -{ - fb_thrift_write_vi64(thft, value); -} - -void -fb_thrift_write_i32(FbThrift *thft, gint32 value) -{ - value = (value << 1) ^ (value >> 31); - fb_thrift_write_vi64(thft, value); -} - -void -fb_thrift_write_vi32(FbThrift *thft, guint32 value) -{ - fb_thrift_write_vi64(thft, value); -} - -void -fb_thrift_write_i64(FbThrift *thft, gint64 value) -{ - value = (value << 1) ^ (value >> 63); - fb_thrift_write_vi64(thft, value); -} - -void -fb_thrift_write_vi64(FbThrift *thft, guint64 value) -{ - gboolean last; - guint8 byte; - - do { - last = (value & ~0x7F) == 0; - byte = value & 0x7F; - - if (!last) { - byte |= 0x80; - value >>= 7; - } - - fb_thrift_write_byte(thft, byte); - } while (!last); -} - -void -fb_thrift_write_str(FbThrift *thft, const gchar *value) -{ - guint32 size; - - g_return_if_fail(value != NULL); - - size = strlen(value); - fb_thrift_write_vi32(thft, size); - fb_thrift_write(thft, value, size); -} - -void -fb_thrift_write_field(FbThrift *thft, FbThriftType type, gint16 id, - gint16 lastid) -{ - gint16 diff; - - g_return_if_fail(FB_IS_THRIFT(thft)); - - if (type == FB_THRIFT_TYPE_BOOL) { - thft->lastbool = (thft->pos << 3) | 0x02; - } - - type = fb_thrift_t2ct(type); - diff = id - lastid; - - if ((id <= lastid) || (diff > 0x0F)) { - fb_thrift_write_byte(thft, type); - fb_thrift_write_i16(thft, id); - } else { - fb_thrift_write_byte(thft, (diff << 4) | type); - } -} - -void -fb_thrift_write_stop(FbThrift *thft) -{ - fb_thrift_write_byte(thft, FB_THRIFT_TYPE_STOP); -} - -void -fb_thrift_write_list(FbThrift *thft, FbThriftType type, guint size) -{ - type = fb_thrift_t2ct(type); - - if (size <= 14) { - fb_thrift_write_byte(thft, (size << 4) | type); - return; - } - - fb_thrift_write_vi32(thft, size); - fb_thrift_write_byte(thft, 0xF0 | type); -} - -void -fb_thrift_write_map(FbThrift *thft, FbThriftType ktype, FbThriftType vtype, - guint size) -{ - if (size == 0) { - fb_thrift_write_byte(thft, 0); - return; - } - - ktype = fb_thrift_t2ct(ktype); - vtype = fb_thrift_t2ct(vtype); - - fb_thrift_write_vi32(thft, size); - fb_thrift_write_byte(thft, (ktype << 4) | vtype); -} - -void -fb_thrift_write_set(FbThrift *thft, FbThriftType type, guint size) -{ - fb_thrift_write_list(thft, type, size); -} - -guint8 -fb_thrift_t2ct(FbThriftType type) -{ - static const guint8 types[] = { - [FB_THRIFT_TYPE_STOP] = 0, - [FB_THRIFT_TYPE_VOID] = 0, - [FB_THRIFT_TYPE_BOOL] = 2, - [FB_THRIFT_TYPE_BYTE] = 3, - [FB_THRIFT_TYPE_DOUBLE] = 7, - [5] = 0, - [FB_THRIFT_TYPE_I16] = 4, - [7] = 0, - [FB_THRIFT_TYPE_I32] = 5, - [9] = 0, - [FB_THRIFT_TYPE_I64] = 6, - [FB_THRIFT_TYPE_STRING] = 8, - [FB_THRIFT_TYPE_STRUCT] = 12, - [FB_THRIFT_TYPE_MAP] = 11, - [FB_THRIFT_TYPE_SET] = 10, - [FB_THRIFT_TYPE_LIST] = 9 - }; - - g_return_val_if_fail(type < G_N_ELEMENTS(types), 0); - return types[type]; -} - -FbThriftType -fb_thrift_ct2t(guint8 type) -{ - static const guint8 types[] = { - [0] = FB_THRIFT_TYPE_STOP, - [1] = FB_THRIFT_TYPE_BOOL, - [2] = FB_THRIFT_TYPE_BOOL, - [3] = FB_THRIFT_TYPE_BYTE, - [4] = FB_THRIFT_TYPE_I16, - [5] = FB_THRIFT_TYPE_I32, - [6] = FB_THRIFT_TYPE_I64, - [7] = FB_THRIFT_TYPE_DOUBLE, - [8] = FB_THRIFT_TYPE_STRING, - [9] = FB_THRIFT_TYPE_LIST, - [10] = FB_THRIFT_TYPE_SET, - [11] = FB_THRIFT_TYPE_MAP, - [12] = FB_THRIFT_TYPE_STRUCT - }; - - g_return_val_if_fail(type < G_N_ELEMENTS(types), 0); - return types[type]; -} |